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For official use only

GOVERNMENT OF INDIAMINISTRY OF RAILWAYS

Monitoring Report of Bridges

On

Operation of BOXN WagonsLoaded up to CC+8+2t/ CC+6+2t

AsPilot Project on Identified Routes

Report No. BS-85

May, 2007

BRIDGE & STRUCTURES DIRECTORATE

RESEARCH DESIGNS AND STANDARDS ORGANISATION

LUCKNOW 226011


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ACKNOWLEDGEMENTS

We wish to acknowledge valuable guidance received in preparation of the reporton pilot project from Shri S.K.Vij, Member Engineering and Shri Rakesh Chopra,

Additional Member/Civil Engineering. We also wish to place on record inspiration andguidance received from Director General/RDSO in the course of monitoring during pilotproject and analysis of the information. The contributions from Shri V.K.Govil,ED/CE/B&S/Railway Board towards setting up the monitoring actions related to the pilotprojects as well as discussions on various related issues are thankfully acknowledged.

We wish to particularly thank CBEs of all Zonal Railways and their team of

officers in providing timely inputs in formats circulated by RDSO for monitoring of theeffects of running of CC+8+2T and CC+6+2T.

********


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INDEX

S.No. Description Page No.

1. Introduction 1

2. Precautions and Monitoring 1-3

3. Tasks Assigned to B&S Directorate of RDSO 3

4. Activities done by B&S Directorate RDSO in connectionwith Heavy Axle Load

3-4

5. Railway wise analysis 5-36

6. Instrumentation of Bridges 36-46

7. Conclusions 46-48

8. Recommendations 48-49

9. Annexure-1 to 4 50-59


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Monitoring Report on Operation of BOXN Wagons Loaded up toCC+8+2t/ CC+6+2t as Pilot Project on Identified Routes

1. Introduction

1.1 In order to enhance throughput to meet traffic demands of the nation, RailwayBoard had permitted operation of BOXN wagons, loaded up to CC+8+2 (axleload of 22.82t) on identified iron ore routes as a pilot project for a period of oneyear vide Railway Board letter no. 2003/CE-II/TS/5 Vol.1 dated 02-05-05 and 04-05-05. Later the currency of pilot project has been extended up to June 07 videCRBs DO letter No. 2005/CE-II/TS/7 dated 04-05-06 to DG/RDSO. Initially 16routes were approved by Railway Board in May 05. Later on additional routeswere also included for such operation and till March 07, total 34 routes wereapproved for operation of CC+8+2t as listed in Annexure 1.

1.2 To achieve further augmentation in throughput, Railway Board also decided to

permit operation of BOXN wagons loaded up to CC+6+2t (axle load of 22.32t) onidentified routes, vide their letter no. 2004/CE-II/TS/2/Vol. I dated 02-02-06 as apilot project. 100 routes have been approved for this operation till March 07, listof which is placed in Annexure 2.

1.3 Various terminologies used about loading of wagons are correlated as below:

S.No. Terminology Axle load in tons Remarks

1. CC 20.32 Carrying Capacity

2. CC+2+2 21.32 2t permitted over load. 2tloading tolerance

3. CC+4+2 21.82 4t permitted over load, 2tloading tolerance

4. CC+6+2 22.32 6t permitted over load, 2loading tolerance

5. CC+8+2 22.82 8t permitted over load, 2tloading tolerance

2. Precautions and Monitoring

2.1 Following precautions and Monitoring of bridges have been prescribed for theoperations of CC+8+2T load as per Railway Board letter no. 2003/CE-II/TS/5

Vol.1 dated 02-05-05 and 04-05-05 and 2005/CE-I/BR-II/6 dated 13-06-2005.Theprecautions and monitoring prescribed for CC+6+2 T are similar to thoseprescribed for CC+8+2 T axle load.

2.1.1 Each bridge needs to be evaluated as an individual entity regarding safety vis--vis its physical condition.

(a) Thorough physical inspection as per performa in bridge inspection register


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shall be done for each bridge, at the start of pilot project.

(b) Bridges found distressed, shall be sanctioned for rehabilitationimmediately and taken up.

(c) Bridges shall be analyzed for the expected loading and where required,rehabilitation/strengthening be got sanctioned and taken up.

(d) The speed restrictions as required from safety consideration shall beimposed.

2.1.2 Bridge load monitoring system has been developed and demonstrated by M/s.Sharma Associates, Chicago, USA. Each Zonal Railway should install one of thesystems to monitor the load spectrum including dynamic augment coming on thebridges.

2.1.3 Sample Bridges (representing type and span of those available on the routes)

and vulnerable bridges, shall be selected for instrumentation, for monitoring theeffects of increased longitudinal loads and higher axle loads on the bridgecomponents i.e. foundations, piers and abutments, bearings and super structure.Instrumentation shall be with respect to measurement of settlement offoundations, tilting of piers/abutments, loads on bearings, deflections andstresses at critical points. Change in dynamic parameters may be monitored forquick evaluation. NDT tests may be carried out periodically.

2.1.4 The recording of data and analysis thereof would be required to be done forlonger period so as to provide realistic data for future for allowing higher axleloads.

(a) The tests for longitudinal loads on bearings and proportion transferred toapproaches be done initially and further tests as may be required afteranalysis of results of tests.

(b) The test for deflection/ tilts & stresses at most critical points be doneinitially and repeated quarterly for one year and thereafter annually forthree years or as otherwise required after study of test results.

(c) Tests for Dynamic Characteristics i.e. Vibration Signature test for thebridge be repeated once a quarter for one year & then annually.

(d) Load spectrum analysis including dynamic augment shall requirecontinuous record. These system may be got installed with recording overa quarter by agency and thereafter Railway personnel could get trained &take over recording.

(e) NDT tests be carried out once in six months for detection of any hiddendefects/ cracks development.


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2.1.5 Quarterly review of the position by multi-disciplinary core group comprising ofPHODs under GM of Zonal Railways.

3. Tasks assigned to B&S Directorate of RDSO

The fixing of instrumentation, recording of observations and report preparationshall be done through specialized agencies by Zonal Railways. RDSO shallassociate from the beginning in the instrumentation scheme, analysis of resultsand report preparation.

4. Activities done by B & S Directorate RDSO in connection withHeavy Axle Load:

4.1 RDSO has issued guidelines for instrumentation of bridges vide letter no.CBS/Axle load dated 17-01-07.

4.2 Guidelines for running of CC+8+2 T and CC+6+2 T Axle Load:

RDSO has issued guidelines for running of CC+8+2 T and CC+6+2 T Axle Loadoperation vide letter no. CBS/Golden/Q/Strength dated 20-03-07.

Salient features of guidelines:

(A) RDSO has checked the superstructure of standard spans (6.1m, 9.15m,12.2m, 18.3m, 24.4m, 30.5m, 45.7m, 61.0m and 76.2m all clear spans) ofbridges for 60kmph speed for CC+6+2 T and CC+8+2 T axle load andfound that Superstructure of all standard spans designed to BGML loadingstandard, RBG loading standard and MBG loading standard are fit for

60kmph speed. (Suitability of Superstructure of standard spans has beenchecked for height of C.G. of wagon from rail level not exceeding1830mm).

(B) RDSO has checked the bearings of standard spans of bridges forCC+6+2 T and CC+8+2 T axle load and observations are as below:

(a) Bearings of standard spans designed for MBG loadings are fit forrunning of CC+6+2 T and CC+8+2 T axle load BOXN wagon withcoupled WDG4 or coupled WAG9 locomotives.

(b) In case, the bearings designed for BGML/RBG loading standards

have been replaced in accordance with RDSO letter of even no.dated 30-12-2004, summarized in annexure 3, then bearings are fitfor running of CC+6+2 T and CC+8+2 T axle load BOXN wagon.

(c) In case, the bearings designed for BGML/RBG loading standardshave not been replaced in accordance with RDSO letter of even no.dated 30-12-2004 summarized in annexure 3, then Zonal Railwayseither replace existing bearings as indicated above or strengthen


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the bearings as per Annexure-3 for restricted speed of 60 kmph.

(d) RDSO has further examined the bearings of standard spans ofBGML and RBG standard for limiting tractive effort of 30t per loco.It is found that two additional anchor bolts are to be provided onfixed end bearings of 76.2m spans of BGML standard. Thebearings of all other standard spans are found safe for 25t AxleLoad operations with coupled WDG4 and WAG9 with limitingtractive effort of 30t per loco.

4.3 RDSO has issued guidelines for running of 25 t Axle Load operation vide letterno. CBS/Golden/Q/Strength dated 08-08-07 and 24/25-08-07.

4.4 Rationalization of Provisions of EUDL in Bridge Rules:

Presently EUDL approach is being used for design of new bridges as well aschecking of suitability of existing bridges. However, there is a need to adoptmore rationalized approach for checking the suitability of existing bridges, based

on Bending Moment and Shear Force calculated for actual train load.

Accordingly, RDSO has developed software Moving Loadfor working outthe maximum Bending Moment and Shear Force which is under final stage ofvalidation.

4.5 Revision of Speed Certificates:

RDSO undertook oscillation trials, controllability trials and coupler force trials forthe wagons/ trains with enhanced loading. The issue of provisional SpeedCertificate for trials, scrutiny of the trial reports and issue of Final Speed

Certificates was undertaken on war footing and in all more than 55 SpeedCertificates were issued for enhanced loading. This involved concerted efforts ofB&S Directorate, Testing, Wagon, Motive Power, Track and Track MachineDirectorates of RDSO. The list of Speed Certificate issued from RDSO foreffecting increase in through put is enclosed in Annexure-4.

5. Railway wise analysis:

5.1 Central Railway:

5.1.1 There are 13 nominated routes for CC+6+2t axle load. The route wise details oftotal bridges, important bridges major bridges, number of arch bridges, steelbridges, and concrete bridges is given in the table below:-


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S.N.

Name of routenominated for

CC+6+2T

Total No.of

bridges

Total No.of

Importantbridges

Total No.of MajorBridges

Total No.of MinorBridges

Total No.of ArchBridges

Total No.of SteelBridges

Total No.of RCC/

PSCbridges

Total Noof bridgesnominated

forinstrumen

tation

WhetherCC+8+2T

/CC+6+2Toperation

started

1 2 3 4 5 6 7 8 9 10 11

CC+6+2T

1 Rajur-Wani-Majri-CTPS

149 5 4 140 12 16 65 Yes

2 Rajur-Wani-Majri-WR-BD-BSL-NKRD

1294 11 127 1156 454 155 296 Yes

3 Ghugus-Tadali-CTPS

48 0 0 48 10 2 7 Yes

4 Ghudus-Tadali-WR-BD-BSL-NKRD

55 2 0 53 5 4 17 5 Yes

5 Godhani-AMF-Ghoradongri-Sarani

716 2 46 668 195 25 337 Yes

6 Parasia-Junnerdeo-Amla-GDYA-SARNI

394 2 11 381 210 12 124 Yes

7 Ghugus-Chandrapur*

Yes

8 Godhani-Wardha 199 3 17 179 98 21 17 Yes

9 Ballarshah-Chandrapur

44 0 8 36 5 9 23 Yes

10 Roha-Panvel-Diva-Vasai-Khandwa-BSL

801 3 98 700 146 84 282 No

11 ET-Ghoradongri 188 2 22 164 72 8 62 Yes

12 NKRD-Kalyan 546 9 17 520 222 45 94 1 No

13 Wadi to NGSM viaPA (incl Saswad)

1725 67 113 1605 695 184 505 No

There is no early steel girder bridge on these routes.

5.1.2 Instrumentation of bridges:

(i) 6 bridge have been planned for instrumentation for CC+6+2 T.

(ii) Tender for instrumentation of one bridge finalized and for remaining 5bridges it is under finalization.

(iii) Instrumentation is yet to start.

5.1.3 Inspection of bridges:

As per the details submitted by core committee of Zonal Railways comprisingPrincipal Chief Engineer, number of bridges inspected during Jan March 07 isas below:

(a) Important bridges 23

(b) Major bridges 190

(c) Arch bridges 1064

(d) Others 1185


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Number of bridges inspected during Oct.Dec.06 is as below:




(d) Others 93

Number of bridges inspected during July Sep. 06 is as below



(c) Arch bridges 37

(d) Others 10

5.1.4 Effect of running of CC+8+2 T/ CC+6+2 T:

(i) No adverse effect has been noticed on the bridges.

5.1.5 Details of bridges planned for replacement/rehabilitation:

In CC+6+2 T Routes, works of Rs. 0.75 crores (for 2 bridges) for strengthening ofbridges have been sanctioned. Works costing Rs. 6.25 crores (for 34 bridges) forstrengthening of bridges have been proposed for sanction.

5.2 East Cost Railway:

5.2.1 There are 6 nominated routes for CC+8+2t and 10 nominated routes for CC+6+2t axle loads. The route wise details of total bridges, important bridges majorbridges, number of arch bridges, steel bridges, and concrete bridges is given inthe table below:-

S.N.

Name of routenominated

Total No.of

bridges

Total No.of

Importantbridges





Total No.of RCC/

PSCbridges

Total No ofbridges

nominatedfor

instrumentation

WhetherCC+8+2T

/CC+6+2Toperation

started

1 2 3 4 5 6 7 8 9 10 11

CC+8+2 T

1 Waltair-KirandulSection (KK line)

1466 1 100 1365 85 41 631 4 15.5.05


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2 Daitari-Jakhapura-Paradeep

864 5 48 811 33 26 297 4 15.5.05

3 Sambalpur-Titlagarh-Rayagada-Vizianagaram-Vishakhapatnam

2098 6 120 1972 72 118 1345 1 15.5.05

4 Jharsuguda-Sambalpur

79 1 10 68 11 25 8 06.02.06

5 Koraput-Rayagada

415 0 75 340 75 0 339 1 09..5.06

6 Bhadrak-Jakhapura

195 4 35 156 20 4 109 15.5.05

CC+6+2 T

1 Talcher-Rajathgarh-Barang-Viziangaram-Simhachalam-Vijiyawada (UptoSimhachalam)

2702 7 206 2489 110 327 1549 15.5.05

2 Talcher-Rourkela(UptoJharsuguda)

485 1 51 433 16 25 251 15.5.05

3 Talcher-Rajathgarh-Nergundi-Paradeep

923 3 56 864 22 27 170 15.5.05

4 Talcher-Rajathgarh-Barang-Vizianagaram-Simhadri

2702 7 206 2489 110 327 1549 15.5.05

5 Talcher-KANIHA(NTPC) 13 0 10 3 7 0 4 06.02.06

6 Tacher-TTPS 4 0 0 4 0 0 2 06.02.06

7 Tacher-Angul 37 0 3 34 2 0 10 06.02.06

8 Vizianagaram-Rayagada-Koraput-Jagdalpur

1559 0 126 1433 111 32 1034 15.5.05

9 Salegaon-Kapilas-Bhadrak 386 4 49 333 31 17 213 15.5.05

10 Raipur-Titlagarh-Vizianagaram 1666 2 74 1590 57 83 890 30.11.06

There are 2 early steel girder bridges on these routes.

Bridge no. 391 (15 x 45.7 m) has speed restriction of 20 kmph for loadedgoods and 35 kmph for passenger trains. Work of replacement sanctioned. 2girders reached at site and balance girders are under fabrication at ManmadEngineering Workshop.

Bridge no. 58 has no speed restriction. Work of replacement sanctioned.Girders are awaited from Engineering Workshop Arakonam.



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(i) 10 number of bridges have been planned for instrumentation. First roundof instrumentation has been done for all 10 bridges.

(ii) The report of instrumentation for four bridges i.e. 1554 UP, 467, 449 and544 has been received.

(iii) Observations of RDSO on Instrumentation:

(A) Bridge number 1554 UP (PSA-VKSP Section, 5x30.5m open webgirder):

(a) Deflection has been found with in permissible limit.

(b) Stresses in the super structure are well with in the permissiblelimit.

(c) Only 22T longitudinal force is coming on the bearing against the

theoretical requirement of 73.3 T.

(d) The remaining fatigue life of the bridge has been assessed as 59years.

(e) Tilt of the pier and settlement of pier has not been measured byZonal Railway

(B) Bridge number 449 UP (BHC-PSA Section, 29x45.72m open webgirder):



(c) 56.44T and 60.14 T longitudinal force is coming on the bearingagainst the theoretical requirement of 88 T for double headedWAG7 locomotive and 81 t for double headed WDG2 locomotiverespectively.

(d) Tilt of the pier is insignificant.

(e) The instrumentation of bridge has been done without taking thebrake binding cases.

(f) Fatigue life of bridge and settlement of pier has not beenmeasured by Zonal Railway

(C) Bridge number 467 UP (BHC-PSA Section, 2x24.4m plate girder):



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(c) Maximum tractive effort at engine level is 48 T; bearing level is40.64 T for 2WDG7 (with brake binding) and 43.2 T for 2WDG3A(without brake binding). The theoretical tractive effort for 24.4mspan for 2WAG7 is 66 T and for 2WDG3A is 60.8 T.

(d) Fatigue life of bridge, tilt and settlement of pier has not beenmeasured by Zonal Railway

(D)Bridge number 544 (BHC-PSA Section, 64x30.48m plate girder):



(c) 59.36 T to 61.36 T tractive efforts has been measured at bearinglevel against the theoretical requirement of 73.3 T for 2WAG 7locomotive and 74.3T for 2WDG 2 locomotive. Longitudinal forceat engine level has not been measured.

(d) Tilt of the pier is insignificant.

(e) Fatigue life of bridge and settlement of pier has not beenmeasured by Zonal Railway


As per the details submitted by core committee of Zonal Railways comprisingPrincipal Chief Engineer, number of bridges inspected during Jan- Mar 07 is asbelow:




(d) Others 1662






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(d) Others 856

Number of bridges inspected during July Sep. 06 is as below:



(c) Arch bridges 27

(d) Others 396




In CC+8+2 T Routes, works for Rs. 29.88 crores (for 31 bridges) and in CC+6+2T Routes works for Rs. 34.97 crores (for 138 bridges) for strengthening ofbridges are being planned.

5.3 East Central Railway:

5.3.1 There is no nominated route for CC+8+2t and 12 nominated routes for CC+6+2taxle load. The route wise details of total bridges, important bridges majorbridges, number of arch bridges, steel bridges, and concrete bridges is given inthe table below:-

S.N.


Total No.of

bridges

Total No.of

Importantbridges





Total No.of RCC/

PSCbridges

Total Noof

bridgesnominated for

instrumentation

WhetherCC+8+2T

/CC+6+2Toperation

started

1 2 3 4 5 6 7 8 9 10 11

CC+6+2T

1 Pradhankhunta -

Manpur -Mughalsarai (GC)

1097 3 74 1020 434 43 480 4 May'06

2 Sonenagar -Garhwa Rd. (BD)

414 Nil 28 386 78 16 294 1 No

3 Gomoh GarhwaRd.

729 1 50 679 273 7 48 2 May'06

4 Garhwa Rd. -Chopan

400 -- 48 352 201 -- 91 -- May'06

5 Chopan -Mahadiya

120 -- 10 110 75 -- 30 -- May'06

6 Karaila Rd. -Shaktinagar

73 -- 8 65 36 -- 20 -- May'06


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7 Dhanbad -Katrasgarh-

Chandrapura53 -- 7 46 25 -- 1 -- May'06

8 Chadrapura -Dugda

30 -- 2 28 19 -- 2 -- May'06

9 Chandrapura -Rajabera

15 -- 1 14 2 -- 5 -- May'06

10 Pradhankhunta -

Patherdih 38 -- 4 34 19 -- 2 -- May'0611 Katrashgarh -

Nichitpur9 -- -- 9 5 -- -- -- May'06

12 Kusunda -Tetulmari

10 -- -- 10 9 -- -- -- May'06

There are 5 early steel girder bridges.


(i) 7 number of bridgeshave been planned for instrumentation.

(ii) Agency for instrumentation of 3 bridges fixed by Zonal Railways. And for

remaining 4 bridges tender has bee invited by Zonal Railways.

(iii) Instrumentation is yet to start by Zonal Railways.


As per the details submitted by core committee of Zonal Railways comprisingPrincipal Chief Engineer, number of bridges inspected during Jan- Mar 07 is asbelow:




(d) Others 1522




(c) Arch bridges 32


(i) No adverse effect has been noticed on bridges.



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Works for strengthening of bridges are being planned for 275 bridges. Cost ofworks is yet to be worked out by Zonal Railway.

5.4 Eastern Railway:

5.4.1 There are 3 nominated routes for CC+8+2 T and 9 nominated routes forCC+6+2t axle load. The route wise details of total bridges, important bridgesmajor bridges, number of arch bridges, steel bridges, and concrete bridges isgiven in the table below:-

S.N.


TotalNo. of

bridges

Total No.of

Importantbridges

TotalNo. ofMajor

Bridges




Total No.of RCC/

PSCbridges

Total No ofbridges

nominatedfor

instrumentation

WhetherCC+8+2T /CC+6+2Toperation

started

1 2 3 4 5 6 7 8 9 10 11

CC+8+2 T

1

Damodar-Kalipahari-Baktarnagar-Durgapur SteelExchange yard_Durgapur Steel Plant.

78 Nil 6 72 46 3 18

Nil

May2005

2Damodar - Burnpur -

Asansol - Kalipahari -Dugapur

128 Nil 12 116 71 2 374

3Durgapur -Barddhaman (slowlines)

198 Nil 7 191 65 5 59Nil

CC+6+2T

1 Pirpainti - Farakka 153 2 34 119 90 22 41 Nil May2005

2 Pirpainti - Kahalgaon 39 Nil 11 28 32 2 6 Nil

3Khana Link -Gumani - MaldaTown

363 3 71 292 168 65 104Nil

4 Asansol - Dugapur 49 Nil 18 31 98 5 35 Nil

5Pradhankhanta -

Asansol102 1 4 98 38 4 34

Nil

6Andal - Suri -Sainthia

155 1 14 141 57 13 41Nil

7

Burdwan - Saktigarh- Dankuni - Dum-dum-Cossipur Road-Chitpur

193 2 16 177 97 42 54

Nil

8Dum - Dum-Ballygunj-KP Docks-Budge-Budge

103 Nil 20 83 22 39 33Nil

9Saktigarh - Bandel -BTPS/Titagarh

157 4 18 139 98 24 29Nil

One bridge is early steel girder bridge on CC+8+2 T routes and speedrestriction of 30 kmph is existing on bridge. Work of replacement is inprogress and likely to be completed in this financial year.

32 bridges are early steel girder bridge on CC+6+2 T routes and speedrestrictions are existing on 7 bridges ranging from 75 kmph to 10 kmph. Workof replacement is sanctioned on 31 bridges and for remaining one bridge,replacement has been proposed for sanction.


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(i) 4 bridges have been planned for instrumentation for CC+8+2 T loading.

(ii) No bridge has been planned for instrumentation for CC+6+2 T loading.

(ii) Instrumentation of first phase for 4 bridges has been done and report isyet to be received by RDSO.


As per the details submitted by core committee of Zonal Railways comprisingPrincipal Chief Engineer, number of bridges inspected during Oct. Dec.06 areas below:



(c) Minor bridges 1061


(a) Important bridges Nil


(c) Arch bridges 11

(d) Others 01




In CC+8+2 T and CC+6+2 T Routes works for strengthening of bridges are beingplanned.

5.5 North Central Railway:



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S.N.

Name ofroute

nominated

TotalNo. of

bridges

Total No.of

Importantbridges





Total No.of RCC/

PSCbridges

Total Noof bridgesnominate

d forinstrumen

tation


started

1 2 3 4 5 6 7 8 9 10 11

CC+6+2 T

1 MGS-ALD 1321 4 68 1249 165 73 904 2 Mar. 07

2 BINA-PWL 1243 4 96 1143 242 122 469 3 Mar. 07



(i) 5 bridges have been planned for instrumentation and agency has beenfinalized & Instrumentation yet to start.




In CC+6+2 T Routes, works of Rs. 5.0 crores (for 25 bridges) for strengthening ofbridges have been planned.

5.6 North Eastern Railway:

5.6.1 There are 2 nominated route for CC+6+2t axle load. The route wise details oftotal bridges, important bridges major bridges, number of arch bridges, steel

bridges, and concrete bridges is given in the table below:-

S.N.


TotalNo. of

bridges

Total No.of

Importantbridges


TotalNo. ofMinor

Bridges

TotalNo. ofArch

Bridges

TotalNo. ofSteel

Bridges

TotalNo. ofRCC/PSC

bridges

Total No ofbridges

nominatedfor

instrumentation


started

1 2 3 4 5 6 7 8 9 10 11

CC+6+2T

1Chhapra- Barabanki-

Burhwal -Sitapur566 6 56 504 2 35 268 6 Not started

2 Chhapra- Allahabad 268 4 18 246 17 19 185 Nil Not started



(i) 6 bridges have been planned for instrumentation for CC+6+2 T axle load.

(ii) Tender for instrumentation of bridges is yet to be called.


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(i) No adverse effect has been noticed on the bridges as operation ofCC+6+2 T has not started.


In CC+6+2 T Routes, works for Rs. 51.65 crores (for 7 bridges) for strengtheningof bridges are being planned.

5.7 Northeast Frontier Railway:

5.7.1 There are 2 nominated route for CC+6+2 T axle load. The route wise details oftotal bridges, important bridges major bridges, number of arch bridges, steelbridges, and concrete bridges is given in the table below:-

S.N.

Name ofroute

nominated

Total No.of bridges

Total No.of

Importantbridges

Total No.of Major

Bridges

Total No.of Minor

Bridges

Total No.of Arch

Bridges

Total No. ofSteel

Bridges

Total No. ofRCC/ PSC

bridges

Total Noof


instrumentation

WhetherCC+8+2T

/CC+6+2Toperation

started

1 2 3 4 5 6 7 8 9 10 11

CC+6+2 T

1MLDT-KDPR-NGC

876 7 259 610 13 228 559 4Not

started

2NBQ-DLPT-KYQ

424 1 259 610 1 15 150 NilNot

started




(ii) Instrumentation is yet to start as tender is under finalization.


As per the details submitted by core committee of Zonal Railways comprising

Principal Chief Engineer, number of bridges inspected during Oct. Dec.06 areas below:



(c) Arch 5


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(d) Others 899


(i) No adverse effect has been noticed on the bridges as operation has notyet started.


In CC+6+2 T Routes, works for strengthening of bridges are still to be planned.

5.8 Northern Railway:

5.8.1 There are 10 nominated route for CC+8+2 T axle load. The route wise details oftotal bridges, important bridges major bridges, number of arch bridges, steelbridges, and concrete bridges is given in the table below:-

S.

N.

Name of

routenominated

Total

No. ofbridges

Total No.

ofImportantbridges

Total

No. ofMajor

Bridges

Total

No. ofMinor

Bridges

Total

No. ofArch

Bridges

Total

No. ofSteel

Bridges

Total

No. ofRCC/PSC

bridges

Total No of

bridgesnominated

forinstrument

ation

Whether

CC+8+2T /CC+6+2Toperation

started

1 2 3 4 5 6 7 8 9 10 11

CC+8+2 T

1 SIR-NLDM 220 2 26 192 34 24 55 Nil Yes

2 UMB-CDG 119 1 19 99 4 6 30 Nil Yes

3 PLVL-NDLS-PNP-UMB

741 2 86 653 113 92 246 01 Yes

4 BTI-DUI-LDH 277 0 19 258 45 19 90 Nil Yes

5 DLI-NDLS-GZB-MTC-

SRE

441 3 37 401 74 76 187 Nil Yes

6 LKO-CNB 218 2 10 206 16 14 111 Nil Yes

7 Gauriganj-RBL-LKO-MB-SRE-

UMB-LDH-JRC-ASR-JUC-JAT

2976 28 412 2536 410 565 1541 1 Yes

8 DUI-RPJ 185 0 12 173 14 12 80 Nil Yes

9 Gauriganj-JNH via

PBH-BSB254 0 7 247 36 5 37 Nil Yes

10 UCR-MGSvia PRG

583 2 18 563 107 45 203 Nil Yes




(ii) Instrumentation of first phase for 2 bridges and second phase for 1 bridgehave been done and report is yet to be received by RDSO.


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In CC+8+2 T Routes, works for strengthening of bridges for Rs. 99.34 crores (for87 bridges) are being planned.

5.9 North West Railway:


S.N.

Name ofroute

nominated

TotalNo. of

bridges

otal No. oImportantbridges

TotalNo. ofMajor

Bridges

TotalNo. ofMinor

Bridges

TotalNo. ofArch

Bridges

TotalNo. ofSteel

Bridges

Total No.of RCC/

PSCbridges

Total No ofbridges

nominatedfor

instrumentation


started

1 2 3 4 5 6 7 8 9 10 11

CC+6+2 T

1BTI-SOG-Birdhwal

75 0 6 69 2 6 15 Nil No

2 ROK-BNW 147 0 2 145 1 6 47 Nil No

3RE-BKI-JP-MD-MJ

782 3 50 729 108 14 405 Nil No

4 BTI By pass 7 0 0 7 0 0 0 Nil No

5MD DuraiBye pass

49 0 3 46 0 5 16 Nil No



(i) No bridge has been planned for instrumentation.


(i) No adverse effect has been noticed on the bridges as CC+6+2 Toperation has not started.


In CC+6+2 T Routes, works of Rs. 12.49 crores (for 6 bridges) for strengtheningof bridges have been planned.

5.10 South Central Railway:

5.10.1 There are 8 nominated routes for CC+8+2t and 15 nominated routes for CC+6+2taxle load. The route wise details of total bridges, important bridges major


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bridges, number of arch bridges, steel bridges, and concrete bridges is given inthe table below:-

S.N.

Name ofroute

nominated

TotalNo. of

bridges

Total No.of

Importantbridges

TotalNo. ofMajor

Bridges

TotalNo. ofMinor

Bridges

TotalNo. ofArch

Bridges

TotalNo. ofSteel

Bridges

TotalNo. ofRCC/PSC

bridges

Total No ofbridges

nominatedfor

instrumentation


started

1 2 3 4 5 6 7 8 9 10 11

CC+8+2 T

1 BAY-GTL 101 1 21 79 - 0 74 Nil

15-05-052 GTL-GY 95 - 8 87 3 0 41 Nil

3 GY-RU 786 4 80 702 106 3 310 Nil

4 GTL-NDL 209 - 22 187 2 0 172 Nil

02-02-06

5 NDL-GNT 344 1 45 298 5 26 132 Nil

6 GNT-BZA 45 - 2 43 - 1 26 1

7 BZA-SLO 802 2 27 773 32 0 361 1

8 SLO-COA 31 - 2 29 4 0 12 -

CC+6+2 T

1 SLO-VSKP 754 - 42 712 28 - 346 Nil 02-02-06

2BPQ-MCI &

MCI-KZJ350 6 27 317 38 4 148 Nil 28-09-06

3 KZJ-SC 429 - 38 391 30 1 249 Nil 28-09-06

4 SC-WADI 503 - 74 429 31 3 292 Nil 28-09-06

5 WADI-RC 442 1 42 399 114 2 192 Nil 28-09-06

6 RC-GTL 252 1 14 237 19 21 187 Nil 06-02-07

7 KZJ-BZA 731 - 50 681 61 3 376 Nil 09-05-06

8 DKJ-KRA 28 - 1 27 7 0 6 Nil 16-02-06

9 KRA-BDCR 69 - 2 67 39 1 8 Nil 16-02-06

10BDCR-MUGR

111 - 23 88 - 22 88 Nil 02-02-06

11 KRA-SYI 12 - 2 10 9 - 2 Nil 28-09-0612

SNF bypass

64 - 16 48 - 0 28 Nil 09-05-06

13 VKB-PRLI 281 - 16 265 97 0 130 Nil 09-05-06

14PDL-GY &GY-DMM

208 1 20 187 - 17 118 Nil 28-09-06

15MAGH-GDCR

59 - 3 56 - 3 56 Nil 28-09-06

There are 2 early steel girder bridges on these routes .

Bridge no. 1017 (44x8.84+36x19.28m on RC-GTL section) has speedrestriction of 75 kmph. Work of rebuilding sanctioned. Targeted for

completion during 2007-08.

Bridge no. 449 (2x12.19 m on BZA-VSKP section) has no speed restriction.Work of replacement sanctioned. Girders are already on site. Targeted forcompletion during 2007-08.



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(i) 2 bridges have been planned for instrumentation. First round ofinstrumentation has been done for all 2 bridges. Reports are yet to bereceived by RDSO.


As per the details submitted by core committee of Zonal Railways comprisingPrincipal Chief Engineer, number of bridges inspected during Jan-Mar 07 is asbelow:




(d) Others 2656




(c) Arch bridges 89

(d) Others 756





(d) Others 1213


(i) Br no 208 Dn (1x91.44+ 5 x 18.3 m) -Oil leaking from one bearing of

91.44 m span. Speed restriction of 75 kmph imposed.

(ii) Br no 452 Dn (7 x 12.19 m) -Individual bed blocks shaken and cracksobserved. Grouting done and bridge under observation.

(iii) Br no 213 Dn (1x 1.8 m) Cracks in abutments and in slab. Speedrestriction of 30 kmph imposed. Planned for rebuilding with RCC box.

(iv) Br no 202 Dn (1x 1.8 m) Cracks in abutments. Speed restriction of75kmph imposed. Planned for rebuilding with RCC box.


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Rehabilitation/ strengthening of 75 bridges (29 bridges on CC+8+2 T and 46bridges on CC+6+2 T) have been planned by Zonal Railway. Cost of the workhas not been given by Zonal Railway.

5.11 South East Central Railway:

5.11.1 There is 1 nominated route for CC+8+2t and 6 nominated routes for CC+6+2taxle load. The route wise details of total bridges, important bridges majorbridges, number of arch bridges, steel bridges, and concrete bridges is given inthe table below:-

S.N.

Name ofRoute

nominatedfor

CC+8+2T

Totalno. of

bridges

Total no.of

importantbridges

Totalno. ofmajor

bridges

Totalno. ofminor

bridges

Totalno. ofarch

bridges

Totalno. ofsteel

bridges

Totalno. ofconc.(RCC/PSC)

bridges

Total no. ofbridges

nominatedfor

instrumentation

CC+8+2Toperation

startedwith date

1 2 3 4 5 6 7 8 9 10 11CC+8+2 T

1 JSG-KDTR 187 02 14 171 36 23 103 1 Feb.06

CC+6+2 T

1GAD-KRBA-CPH

166 1 12 163 5 8 126 Nil

Feb.06

2 CPH-BSP 160 3 15 142 5 14 118 Nil

3 BSP-APR 154 Nil 21 133 20 28 48 1

4 APR-KTE 288 Nil 59 229 29 73 153 1

5 Dumrikhurd-KNHN

11 Nil Nil 11 Nil Nil 6 Nil

6 KNHN-Kalaumna

44 2 7 35 2 9 16 1



(i) One bridge has been planned for instrumentation for 25T loading on Durg-DalliRajhara route.

(ii) One bridge has been planned for instrumentation for CC+8+2 T loading.

(iii) 3 bridge have been planned for instrumentation for CC+6+2 T loading.

(iv) First round of instrumentation has been done for all 5 bridges.

(v) On one bridge second round of instrumentation has been done.

(vi) The report of first and second round of instrumentation for bridge no. 105has been received. Reports of first round of instrumentation for bridgenumber 91K UP, 175K UP, 154 and 34 is yet to be received in RDSO.

(vii) Observations of RDSO on Instrumentation:


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(A) Bridge number 105 (DUG-DRZ Section, 5x30.5+2x12.2m plategirder):

(a) In first and second round of instrumentation, deflection has beenfound with in permissible limit.


(c) In first round of Instrumentation, longitudinal force at bearing wasnot measured by Zonal Railway. In the second round ofinstrumentation, there appears to be error in measurement oflongitudinal force as measured longitudinal force with single locois 35 T and dispersion is 18 T while with double loco measuredlongitudinal force is 20 T and dispersion is 8 T.

(d) Residue fatigue life of the bridge assessed as 50 years.

(e) 1.5 degree of tilt of the pier which does not appear to be correctand no settlement of pier has been recorded.


As per the details submitted by core committee of Zonal Railways comprisingPrincipal Chief Engineer, number of bridges inspected during Jan.-Mar.07 is asbelow:



(c) Arch bridges 13

(d) Others 83

Number of bridges inspected during Oct.-Dec. 06 is as below:



(c) Arch bridges 57

(d) Others 447



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(c) Arch bridges 03

(d) Others 55


(i) Bridge number 15 UP (3x60 in KAV-KP) 2 numbers stiffeners werecracked in middle span. Few other stiffeners are developing cracks in allspans. Also loosening of rivets noticed in cross frame.

(ii) Bridge number 190K UP (3x40 in CHD-VYK):

Both vertical stiffeners at second cross girder of span number 3 cracked.

5.11.5 Details of bridges planned for replacement/rehabilitation

In CC+8+2 T Routes works of Rs. 14.43 crores (for 8 bridges) for jacketing ofpiers, abutments, foundations and replacement of bearings for 25 T axle loadand replacement of girders of bridge number 145 and 154 have been planned.

In CC+6+2 T Routes, works of Rs. 2.68 crores for jacketing of piers, abutments,foundations and replacement of bearings of bridge number 46 UP and DN andRs. 1.51 crores for jacketing and recapping of piers and abutments of bridge no.34 UP have been planned.

5.12 South Eastern Railway:

5.12.1 There are 18 nominated routes for CC+8+2t and 11 nominated routes forCC+6+2t axle load. The route wise details of total bridges, important bridgesmajor bridges, number of arch bridges, steel bridges, and concrete bridges isgiven in the table below:-

S.N.

Name of Routenominated for

CC+8+2 &CC+6+2

Totalno. of

Bridges

Total no. ofImportantBridges

Total no.of majorBridges

Totalno. ofminor

Bridges

Totalno. ofarch

Bridges

Total no.of steelBridges

Totalno.of

concrete(RCC/PSC)

Bridges

Total no. ofbridges

nominatedfor

instrumentation

WhetherCC+8+2 T/CC+6+2 Toperation

started

1 2 3 4 5 6 7 8 9 10 11CC+8+2 T

1

GUA-BJMD-RKSN-SINI-CNI-GRB-JOC-DMA-

BURN-ASN

946 2 59 885 269 20 533 3

15/5/05

2BNDM-SINI-ADTP (DN)

207 0 21 186 112 15 46 4


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3 BYX-BJMD (SL) 35 0 3 32 5 3 21 0

4 BNDM-BXF (SL) 188 0 6 182 75 2 108 0

5 BUF-KRBU (SL) 163 0 4 159 45 1 87 0

6 DMA-KPK (SL) 21 0 4 17 12 2 4 0

7PDPH-BSPX

(SL)104 0 2 102 32 0 66 0

8BNDM-NXN-PURNAPANI

(SL)27 0 5 22 9 5 12 1

9NXN-THE-

MURI-BKSC(SL/DN)

672 0 27 645 270 16 272 0

10 PRR-KSX (SL) 65 0 0 65 0 0 65 0

11BRMP-BNDM

(SL)71 0 1 70 10 1 47 0 7/06/05

12ADTP-KGP-

PKU-HLZ (DN)360 0 27 333 69 16 152 3

22/07/05

13KGP-ROP-BHC

(UP)226 0 38 188 72 22 109 1

14ANR-RUI-BJE-

VAA (UP)77 0 2 75 29 2 20 0

15/01/0615 ANR-ADA (SL) 32 0 0 32 5 0 9 0

16 RNC-LAD(SL) 111 0 2 109 0 0 111 0

17 BNDM-JSG (UP) 155 0 13 142 49 9 84 0 6/02/06

18 ADA-MDN (DN) 238 0 14 224 81 9 68 0 9/05//06

CC+6+2 T

1BRKA-CNI&CNI-GMH OF BRKA-MURI-CNI-ADTP

319 0 19 300 51 14 167 0

06/02/06

2 JSG-ROU (DN) 141 0 12 129 29 9 97 0

3RDR-DMA &

JOC-SNTD OFRDR-SNTD (SL)

47 0 4 43 8 3 13 0

4DDGA-CRP-BKSC (SL)

24 0 0 24 2 0 21 0

5MHQ-TLE-

TPKD-BKSC(SL)

40 0 2 38 8 3 11 0

6JBO-BJE of

JBO-BJE-ANR-CNI-TATA (DN)

17 0 2 15 9 2 5 0

7

TSBD-MHQ ofTSBD-MHQ-TLE-TPMD-BKSC (SL)

Bridges included in MHQ VAA Route

8SDMD-BJE of

SDMD-BJE-TLE-TPKD-BKSC

(DN)

1 0 1 0 0 1 0 0

9MHQ-VAA of

MHQ-VAA-BJE(SL)

38 0 5 33 14 2 15 0 9/5/2006

10 PKU-BLTR (DN) 56 0 10 46 8 8 39 028/09/06

11 MHQ-GMO (SL) 22 0 2 20 9 1 10 0


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There are 10 early steel girder bridges on CC+8+2 T Axle load routes and oneearly steel girder bridge on CC+6+2 T Axle load routes. Works for replacementsof all early steel girder bridges are sanctioned.


(i) 12 number of bridges have been planned for instrumentation for CC+8+2T loading.

(ii) No bridge has been planned for instrumentation for CC+6+2 T loading.

(iii) First round of instrumentation has been done for all 12 bridges. Second &third rounds of instrumentation have been done on 2 bridges.

(iv) The report of first and second round of instrumentation for bridge no. 414

DN and 3 DN has been received. Draft reports of first round ofinstrumentation for bridge number 694, 25 DN, 206 DN,166 DN, 53 DN,84 DN, 263 UP and 520 DN have been received in RDSO.

(v) Observations of RDSO On Instrumentation:

(A) Bridge number 414 DN (CNI-ANR Section, 5x100+1x80 underslung girder):

(a) In first and second phase of instrumentation deflection has beenfound with in permissible limit.


(c) Longitudinal force, settlement of pier fatigue life have not beenmeasured by Zonal Railway.

(d) Tilt of the pier is negligible.

(B) Bridge number 3 DN (Tata-JSG Section, 3x30 Arch Bridge):

(a) Deflections have been found with in permissible limit.


(C) Bridge number 694 (BGKA-NXN Section, 2x60+7x100 plategirder):



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(c) 1.4 degree of tilt of the pier which does not appear to be correctand No settlement of pier has been recorded.

(d) Fatigue life has not been measured by Zonal Railway.

(e) Instrumentation of longitudinal force could not be done by ZonalRailway.

(D) Bridge number 25 DN (Tata-JSG Section, 10x80 Plate girder):



(c) 2.7 degree of tilt of the pier which does not appear to be correctand no settlement of pier has been recorded.


(e) Longitudinal force at draw bar has been measured as 37 T and atbearing level it is 22 T. However longitudinal force has not beenmeasured at engine level.

(E) Bridge number 206 DN (MXW-PST Section, 4x60+2x40+1x150under slung + plate girder):






(F) Bridge number 166 DN (Tata-JSG Section, 1x80 Plate girder):


(b) Stresses in the super structure are well with in the permissible


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limit.




(G) Bridge number 53 DN (KGP-Tata Section, 10x100 through girder):



(c) 0.04 degree of tilt of the pier and no settlement of pier have beenrecorded.


(e) Longitudinal force at draw bar for 10 axles (brake bindingcondition) has been measured as 30.8 T and at bearing level it is24.1 T. However longitudinal force has not been measured atengine level. Also braking condition instrumentation has not beendone.

(H) Bridge number 84 DN (KGP-HWH Section, 7x100 under slunggirder):

(a) Deflection has been found with in permissible limit (for CC+4+2 Tloading).

(b) Stresses in the super structure are well with in the permissiblelimit (for CC+4+2 T loading).

(c) 0.01 degree of tilt of the pier and no settlement of pier has beenrecorded.

(d) At the time of instrumentation speed restriction of 20 kmph wasexisting on the bridge, therefore braking condition was notinstrumented.

(e) Fatigue life has not been measured by Zonal Railway.

(f) Longitudinal force at draw bar has been measured as 29.16 T andat bearing level it is 20 T. However longitudinal force has not been


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measured at engine level.

(I) Bridge number 263 UP (KGP-BHC Section, 4x60+2x150 underslung + plat girder):


(b) Stresses in the super structure are well with in the permissiblelimit. However no effect of speed on the stresses in the memberhas been observed.

(c) 0.06 degree of tilt of the pier and no settlement of pier has beenrecorded.

(d) Fatigue life and longitudinal force have not been measured byZonal Railway.

(J) Bridge number 520 UP (CNI-ASN Section, 22x100 underslunggirder:


(b) Stresses in the super structure are well with in the permissiblelimit. However no effect of speed on the stresses in the memberhas been observed.

(c) 0.04 degree of tilt of the pier and no settlement of pier has been

recorded.




As per the details submitted by core committee of Zonal Railways comprising

Principal Chief Engineer, number of bridges inspected during Jan-Mar 07 is asbelow:





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(d) Others 597





(d) Others 1167




(c) Arch bridges 01

(d) Others 20


(i) Crack in the stiffener angle connecting cross bracings and gussets of spanno 2 of bridge number 394 DN (2x60 on KTD-URA Section on GUA-BJMD-RKSN route) observed.

(ii) Bridge number 520:

Girders of bridge No. 520 Up (22x30.5m) at km 314/5-29 between MDKD-DMAon ADA_ASN section of Adra Division, constructed in 1965, have a long historyof developing cracks in different components in different spans since 1987 andsome increase in the length of crack have been detected in October,2006. ThisBridge lies on the nominated CC+8+2t route and rate of propagation of the crackhas increased after introduction of CC+8+ 2t operations. The length of the crackhas increased at following location:

Location of crack Year first ofdetection

Status as onOctober,2006

Status as onMarch,2007

Span No.9 ASNEnd,-Initial hair crack of175mm at bend ofbent plateconnecting endRaker & top boom.

1999 Crack lengthincreased by 40mmin 7 years i.e. from1999-2006.

Crack lengthincreased by 15mmin 6 months afterintroduction ofCC+8+2Toperation.

Span No. 13 ASN 2003 Crack length Crack length


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End. D/S,-Hair crack of270mm at Web-flange junction ofinside channel of top

chord near end ofgirders over bearingarea.

increased by 15mmin 3 years i.e. 2003-2006.

increased by 15mmin 6 months afterintroduction ofCC+8+2Toperation.

(iii) Hair crack at edge of bed plate in pier number 1 and 2 of bridge number39 (1x60+2x40 on RJA-TNZ Section on Aditypur-KGP route) observed.

(iv) Hair crack in slab of bridge number 189 UP (1x2.4m on NSI-DNT Sectionon KGP-Bhadrak route) observed.

5.12.5Details of bridges planned for replacement/rehabilitation:

In CC+8+2 T Routes, works of Rs. 50.43 crores for strengthening of bridges havebeen planned.

In CC+6+2 T Routes, works of Rs. 13.54 crores for strengthening of bridges havebeen planned.

5.13 Southern Railway:

5.13.1 There is 1 nominated route for CC+8+2t and 1 nominated route for CC+6+2t axleload. The route wise details of total bridges, important bridges major bridges,number of arch bridges, steel bridges, and concrete bridges is given in the tablebelow:-

S.N.


CC+8+2T

Totalno. of

bridges

Total no.of

importantbridges

Total no.of majorbridges

Total no.of minorbridges

Totalno. ofarch

bridges

Totalno. ofsteel

bridges

Total no.of conc.(RCC/PSC)

bridges

Total no. ofbridges

nominatedfor

instrumentation

WhetherCC+8+2T/C

+6+2Toperation

started

1 2 3 4 5 6 7 8 9 10 11

CC+8+2 T

1

Attipattu-Veysarpadi-

Arakkonam-Renigunta

970 2 31 937 110 40 223 7 01-08-06

CC+6+2 T

1

Chennai Beach -Veysarpadi -

Arakkonam -Jolarpet - Salem

- Metturdam

863 2 40 821 248 26 336 NilNot

started



34/63


(i) 7 bridge have been planned for instrumentation for CC+8+2 T loading.

(ii) No bridge has been planned for instrumentation for CC+6+2 loading.

(iii) First round of instrumentation has been done for 2 bridges.

(iv) On one bridge second round of instrumentation has been done.

(v) The report of first round of instrumentation for bridge no. 85 DN has beenreceived.

(vi) Reports of second round of instrumentation for bridge number 85 DN andfirst round of bridge no. 155 DN is yet to be received in RDSO.

(vii) Observations of RDSO on Instrumentation:

(A) Bridge number 85 DN (Arakonam-RU Section, 13x12.2m plategirder):

(a) In first phase of instrumentation deflection has been found with inpermissible limit.


(c) In first round of Instrumentation, maximum longitudinal force atrail level is 29 T and on girder is 6 T without brake binding.

(d) Tilt of the pier and settlement of pier has not been measured byZonal Railway.

(e) Fatigue life has not been measured by Zonal Railway.


As per the details submitted by core committee of Zonal Railways comprisingPrincipal Chief Engineer, number of bridges inspected during Jan Mar 07 is asbelow:



(c) Arch bridges 01

(d) Others 03


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(c) Arch bridges 01

(d) Others 12




(c) Arch bridges 01

(d) Others 16




In CC+8+2 T Routes works of Rs. 3.06 crores (for 43 bridges) for strengtheningof bridges have been planned.

In CC+6+2 T Routes, works of Rs. 1.0 crores (for 6 bridges) for strengthening ofbridges have been planned.

5.14 South Western Railway:

5.14.1 There are 4 nominated route for CC+8+2t axle load. The route wise details oftotal bridges, important bridges major bridges, number of arch bridges, steelbridges, and concrete bridges is given in the table below:-

S.N.


CC+8+2T

Totalno. of

bridges

Totalno. of

important

bridges

Totalno. ofmajor

bridges

Totalno. ofminor

bridges

Totalno. ofarch

bridges

Totalno. ofsteel

bridges

Totalno. ofconc.(RCC/

PSC)bridges

Total no. ofbridges

nominated forinstrumentation

WhetherCC+8+2T/CC+6+2Toperation

started

1 2 3 4 5 6 7 8 9 10 11

CC+8+2 T

1Bellary-Hospet-Hubly-Londa-

Vasco-Da-Gama911 03 61 848 132 93 387 04

Yes2

Toranagallu-Ranajitpura

45 - 2 43 - 7 25 01

3Hospet-Gunda

Road-Swamihalli139 - 3 136 1 2 107 Nil


36/63


37/63


(i) Some minor cracks have been observed in the bed blocks of abutment ofbridge no. 139A (1x30.5m span) open web girder built to BGML loading onBellary-Gadag section. However no further propagation of cracks hasbeen observed during last year.



5.15 West Central Railway:

5.15.1 There is 1 nominated route for CC+8+2 T and 2 nominated routes for CC+6+2taxle load. The route wise details of total bridges, important bridges majorbridges, number of arch bridges, steel bridges, and concrete bridges is given in

the table below:-

S.N.

Name of routenominated for

CC+8+2T/CC+6+2T

TotalNo. of

bridges

Total No.of

Importantbridges

TotalNo. ofMajor

Bridges

TotalNo. ofMinor

Bridges

TotalNo. ofArch

Bridges

TotalNo. ofSteel

Bridges

TotalNo. ofRCC/PSC

bridges

Total Noof


instrumentation


started

1 2 3 4 5 6 7 8 9 10 11

CC+8+2 T

1Manikpur-Jabalpur

345 19 20 306 215 25 84 1 May 06

CC+6+2 T

1 Katni-Bina-Kota 629 34 48 547 204 82 179 2 Feb. 06

2Bina-Itarsi-Khandwa

957 41 92 824 168 124 261 1 May 06



(i) One bridge has been planned for instrumentation for CC+8+2 T.

(ii) 3 bridges have been planned for instrumentation for CC+6+2 T.

(iii) Agency for instrumentation of four bridges finalized (CRRI/NDLS).

(iii) Instrumentation is yet to start.


As per the details submitted by core committee of Zonal Railways comprisingPrincipal Chief Engineer, number of bridges inspected during Oct. Dec.06 is asbelow:


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(c) Arch bridges 55

(d) Others 414





(d) Others 218






5.16 Western Railway:

5.16.1 There is 1 nominated route for CC+6+2t axle load. The route wise details of totalbridges, important bridges major bridges, number of arch bridges, steel bridges,and concrete bridges is given in the table below:-

S.N.

Name ofroute

nominated

TotalNo. of

bridges

Total No.of

Importantbridges

TotalNo. ofMajor

Bridges

TotalNo. ofMinor

Bridges



TotalNo. ofRCC/PSC

bridges

Total Noof bridgesnominate

d forinstrumen

tation


started

1 2 3 4 5 6 7 8 9 10 11

CC+6+2 T

1 Udhana-Jalgaon

415 1 53 361 41 108 118 Nil May 06

Out of 106 steel bridges, 32 bridges are early steel girder bridges. Steel girderbridges of 9.15 m span have been sanctioned for replacement by slab andsteel girder bridges of more than 9.15 m span have been sanctioned by steel


39/63

girders. No speed restriction has been imposed on these bridges.


(i) No bridge has been planned for instrumentation.


As per the details submitted by core committee of Zonal Railways comprisingPrincipal Chief Engineer, number of bridges inspected during Oct. Dec.06 areas below:

(a) Important bridges -


(c) Arch bridges 05

(d) Others -




In CC+6+2 T Routes, works of Rs. 114.62 crores (for 152 bridges) for slabreplacement/re-girdering of bridges have been planned.

6.0 INSTRUMENTATION OF BRIDGES:

6.1 SALIENT FEATURES OF INSTRUMENTATION:

(i) Total number of bridges planned for instrumentation = 79

(ii) Total number of bridges planned for instrumentation for CC+8+2 T = 45

(iii) Total number of bridges planned for instrumentation for CC+6+2 T =34

(iv) Total number of bridges instrumented for Ist phase:

a. For CC+8+2 T = 34

b. For CC+6+2 T = 3(v) Total number of bridges instrumented for II nd phase:

c. For CC+8+2 T = 4

d. For CC+6+2 T = Nil

(vi) Total number of bridges instrumented for III rd phase:

e. For CC+8+2 T = 2


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f. For CC+6+2 T = Nil

(vii) Railway wise position of instrumentation is as below:-

CC+8+2t Axle load

RailwaysBridges to beinstrumented

BridgeInstrumented

in phase I

Reportreceived

in RDSO

BridgeInstrumented

in phase II

Reportreceived in

RDSO

BridgeInstrumented

in phase III

Reportreceived in

RDSOECOR 10 10 4 0 0 0 0

ER 4 4 0 0 0 0 0

NR 2 2 0 0 0 0 0

SCR 2 2 0 0 0 0 0

SECR 2 2 1 1 1 0 0

SER 12 12 10 2 2 2 0

SR 7 2 1 1 0 0 0

SWR 5 0 0 0 0 0 0

WCR 1 0 0 0 0 0 0

Total 45 34 16 4 3 2 0

CC+6-2T Axle load

RailwaysBridges to beinstrumented

BridgeInstrumented

in phase I

Reportreceivedin RDSO

BridgeInstrumented

in phase II

Reportreceived in

RDSO

BridgeInstrumented

in phase III

Reportreceived in

RDSO

CR 6 0 0 0 0 0 0

ECR 7 0 0 0 0 0 0

NCR 5 0 0 0 0 0 0

NER 6 0 0 0 0 0 0

NFR 4 0 0 0 0 0 0

SECR 3 3 0 0 0 0 0

WCR 3 0 0 0 0 0 0

TOTAL 34 3 0 0 0 0 0

G.TOTAL 79 37 16 4 3 2 0

The above details have also been shown in graphical form as below:


41/63

PROGRESS OF INSTRUMENTATION FOR CC+8+2 T AS ON MAY 07

10

4

2 2 2

12

7

5

1

10

4

2 2 2

12

2

0 0

4

0 0 0

1

10

1

0 00 0 0 0

1

2

1

0 00 0 0 0

1

2

0 0 00

2

4

6

8

10

12

14

ECOR ER NR SCR SECR SER SR SWR WCRZONAL RAILWAYS

NUMBEROFBRIDGES

Bridges to be instrumented Bridge instrumented in phase I Report received in RDSO

Bridge instrumented in phase II Report received in RDSO

PROGRESS OF INSTRUMENTATION FOR CC+6+2 T AS ON MAY 07

6

7

5

6

4

3 3

0 0 0 0 0

3

00 0 0 0 0 0 00 0 0 0 0 0 00 0 0 0 0 0 0

0

1

2

3

4

5

6

7

8

CR ECR NCR NER NFR SECR WCRZONAL RAILWAYS

NOOFBRIDGES


Bridge instrumented in Phase II Report received in RDSO


42/63

PROGRESS OF INSTRUMENTATION FOR HEAVY AXLE LOAD AS ON

MAY 07

6

10

7

4

5

6

4

2 2

5

12

7

5

4

0

10

0

4

0 0 0

2 2

5

12

2

0 00

4

0 0 0 0 0 0 01

10

10 00 0 0 0 0 0 0 0 0

1

2

10 00 0 0 0 0 0 0 0 0

1

2

0 0 00

2

4

6

8

10

12

14

CR ECOR ECR ER NCR NER NFR NR SCR SECR SER SR SWR WCR

ZONAL RAILWAYS

NUMBEROFBRIDGES


Bridge instrumented in phase II Report received in RDSO

(viii) The bridge wise and railway wise analysis for bridges to be instrumented is asbelow:

Railways Bridges to beinstrumented

No of steelbridges to beinstrumented

No of archbridges to beinstrumented

No of conc.bridges to beinstrumented

CR 6 6

ECOR 10 9 1

ECR 7 6 1

ER 4 1 3

NCR 5 4 1

NER 6 4 1 1

NFR 4 3 1

NR 2 2

SCR 2 2

SECR 5 5

SER 12 9 3SR 7 3 1 3

SWR 5 3 1 1

WCR 4 4

Total 79 61 7 11

The above details have also been shown in graphical form as below:


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BRIDGE WISE POSITION OF INSTRUMENTATION

6

10

7

4

5

6

4

2 2

5

12

7

5

4

6

9

6

1

4 4

3

2 2

5

9

3 3

4

1

3

1 1 11 1 1 1

3 3

1

0

2

4

6

8

10

12

14

CR ECOR ECR ER NCR NER NFR NR SCR SECR SER SR SWR WCR

ZONAL RAILWAYS

NUMBEROFBRIDGES

Bridges to be instrumented Steel bridges to be instrumented

Arch bridges to be instrumented Concrete bridges to be instrumented

(ix) The span wise bridges to be instrumented by Zonal Railways are as below:

Railways

Span of bridges

UPTO9.14m

12.2m 18.3m 24.4m 30.48m 33.5m 45.7m >61m Total

CR 1 2 3 6

ECR 1 2 1 3 7

ECOR 2 2 4 2 10

ER 3 1 4

NCR 1 1 1 1 1 *(61) 5

NER 2 1 2 1 *(61) 6

NFR 1 1 1 1 *(121) 4

NR 1 1 2

SCR 1 2 *(91.44) 3

SECR 1 1 3 1 6

SER 3 2 5 2 12SR 2 2 2 1 7

SWR 1 1 3 5

WCR 1 1 1 1 4

TOTAL 13 5 12 12 20 1 13 5 81

* INDICATE LENGTH OF SPAN.

The above details have also been shown in graphical form asbelow:


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SPAN WISE POSITION OF INSTRUMENTATION

1

3

1

2

1 3 2

1

1

1

2

1

2

2

1

1

1 1

2

1

2

1

2

2

2

1

1

1

3

4

1

3

5

3

1

1

3

2

1

1

1

1

1 2

11

1

1

2

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

CR ECR ECOR ER NCR NER NFR NR SCR SECR SER SR SWR WCR

ZONAL RAILWAYS

%B

RIDGES

Upto 9.14m 12.2m 18.3m 24.4m 30.48m 33.5m 45.7m >61m

6.2 ANALYSIS OF INSTRUMENTATION:

(a) DEFLECTION:

The details of bridge wise actual deflection measured vis--vis thepermissible deflection has been analyzed by RDSO and it is observed thatactual deflection coming on the bridges is less than the permissible deflection.The details are given in the graphical form.


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INSTRUMENTATION OF BRIDGES FOR DEFLECTION

13.9

35.3

18.6

31.2

22.918.7

11.2

38.6

16.2 15.3

25.9

35.3

25.6

8.5810.7

54.8

76.2

40.6

50.854 53.4

40.6

78.75

40.6

53.1 53.1

76.2

53.1

21.83 21.87

0

10

20

30

40

50

60

70

80

90

30.5

/1554/ECoR

45.7

2/449/ECoR

24.4

/467/ECoR

30.4

8/544/ECoR

30.4

8/414/SE

R

30.5

/694/SE

R

24.4

/25/SE

R

45.7

/206/SE

R

24.4

/166/SE

R

30.5

/53/SE

R

30.5

/84/SE

R

45.7

/263/SE

R

30.5

/520/SE

R

12.2

/85/S

R

12.2

/105/SEC

R

SPAN/BRIDGE NO./RLY

DEFLECTION(MM)

ACTUAL/MODELLED DEFLECTION PERMISSIBLE DEFLECTION

(b) STRESSES:

The details of bridge wise actual stresses measured on critical membersvis--vis the permissible stresses has been analyzed by RDSO and it isobserved that actual stresses coming on the bridges is less than thepermissible stresses. The details are given in the graphical form.


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INSTRUMENTATION OF BRIDGES FOR STRESSES IN SUPERSTRUCTURE

59.5

80.8

5665

55.65

40.05

24.58 23.67

61.1

77.7

154 154 154 154 154 154 154 154 154 154

0

20

40

60

80

100

120

140

160

180

30.5/1554/ECo

R

45.72/449/ECo

R

24.4/467/ECo

R

30.48/544/ECo

R

30.48/414/SE

R

30.5/694/SE

R

24.4/25/SE

R

24.4/166/SE

R

45.7/263/SE

R

30.5/520/SE

R

SPAN/BRIDGE NO./RLY

STRESSES(MPA)

ACTUAL STRESSES PERMISSIBLE STRESSES

(c) LONGITUDINAL FORCES:

(i) Bridge wise longitudinal forces measured at bearing level viz a viz.theoretical tractive effort (based on rated tractive effort of locomotive usedfor trial, number of axle of the loco coming on the bridge test span) hasbeen analyzed by RDSO and it is observed that dispersion of longitudinalforce away from test span with respect to theoretical tractive effort varyingfrom 16.2 % to 72.7 %. After having a series of discussion with concernedCBE of the Zonal Railway and Prof. P.Banerjee of IIT/Mumbai who isclosely associated with instrumentation, it has been noted that thepossible large variation in longitudinal forces transferred at bearing level ismainly due to large noise to signal ratio noticed during strainmeasurement at bearing level and filtration process adopted to clean the

signal from noise. However, more number of subsequent trials on bridgesfor longitudinal forces will indicate the trend more clearly.


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Details of Longitudinal Forces (Maximum) measured at bearing, bridge wise areas below:

S.N.

Railway BridgeNo

Span(m) Longitudinal force (T)

Theoretical Measuredat Bearing

%Dispersion

1ECoR

1554 30.5 74.3 22 70.39

2 449 45.72 81 60.14 25.75

3 467 24.4 60.8 43.2 28.95

4 544 30.48 73.3 61.36 16.29

5SER

25 24.4 66 22 66.67

6 206 45.7 88 55 37.50

7 166 24.4 66 30 54.55

9 53 30.5 73.3 24.1 67.12

9 84 30.5 73.3 20 72.71

10 520 30.5 73.3 22 69.99

The above details are given in graphical form as below:


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INSTRUMENTATION OF BRIDGES FOR LONGITUDINAL FORCE

BAR GRAPH

74.3

81

60.8

73.3

66

88

66

73.3 73.3 73.3

22

60.14

43.2

61.36

22

55

30

24.120 22

70.39

25.7528.95

16.29

66.67

37.50

54.55

67.1272.71

69.99

0

10

20

30

40

50

60

70

8090

100

30.5

/1554/ECoR

45.7

2/449/ECoR

24.4

/467/ECoR

30.4

8/544/ECoR

24.4

/25

/SER

45.7

/206

/SER

24.4

/166

/SER

30.5

/53

/SER

30.5

/84

/SER

30.5

/520

/SER

SPAN/BRIDGE NO./RLY

LONGITUDINALFORCES(T)

THEORITICAL LF LF AT BEARING % DISPERSION

LINE GRAPH

0

10

20

30

40

50

60

70

80

90

100

30.5

/1554/EC

oR

45.7

2/449/EC

oR

24.4

/467/EC

oR

30.4

8/544/EC

oR

24.4

/25/SER

45.7

/206/SER

24.4

/166/SER

30.5

/53/SER

30.5

/84/SER

30.5

/520/SER

SPAN/BR NO./RLY


Theoritical LF (T) LF at Bearing (T) % Dispersion


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(ii) The trial was conducted with 2WAG9 loco with 58 BOXN loaded withCC+8+2 on two bridges of Bondamunda- Hatia section of S.E. Railway on8.01.07 and starting tractive effort was measured and compared withtheoretical value and it is found that tractive effort applied by thelocomotive is varying from 45.2 % to 90.0% of the theoretical tractive

effort. The details are given as below:-

Instrumentation of Bridges by RDSO

S.N.

RLY Type ofLoco

Span(M) BridgeNo.

Longitudinal forces Remark

Theoretical

Tractive effortby loco

(without Brakebinding)

Tractive effortby loco (with

Brakebinding)

1 SER 2WAG92x18.3+7x30.48

694 93.8 34.7 42.4

Approach ofbridge with downgradient of 1:125.Bridge on leveltrack

2 SER 2WAG9 6x18.3 574 93.8 75.5 84.5

Approach ofbridge with Upgradient of 1:100.Bridge on leveltrack

(iii) A trial was also conducted with two WAG7 loco with 54 BOXN loadedwith CC+8+2t and along with RDSO recording car on bridge No.85 (leveltrack) of S. Railway on 13.2.07. Starting tractive effort without brakebinding was measured in range of 61.4 to 78 T and compared withtheoretical value (88 T) and it is found that tractive effort applied by thelocomotive is varying from 69.77 % to 88.63 % of the theoretical tractiveeffort.

From the above two trials (ii) & (iii), it is observed that actual Tractive Effortapplied by loco with respect to theoretical tractive effort varies from 45.2% to90% depending on gradient on approaches.

The above details are given in graphical form as below:-


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INSTRUMENTATION OF BRIDGES FOR LONGITUDINAL FORCES BY RDSO

93.8 93.8

88

42.4

90.09 88.64

78

84.5

45.20

0

10

20

30

40

50

60

70

80

90

100

694/SER 574/SER 85/SR

BRIDGE NO./RAILWAY


Theoritical Longitudinal force (T) Actual Longitudinal force (T) % Actual LF W.R.T Theorit ical LF

7.0 CONCLUSIONS:

7.1 Effect of running of CC+8+2 T/ CC+6+2 T on bridges:

7.1.1 South Central Railway:

(i) Br no 208 Dn (1x91.44+ 5 x 18.3 m) -Oil leaking from one bearing of91.44 m span. Speed restriction of 75 kmph imposed.

(ii) Br no 452 Dn (7 x 12.19 m) -Individual bed blocks shaken and cracksobserved. Grouting done and bridge under observation.

(iii) Br no 213 Dn (1x 1.8 m) Cracks in abutments and in slab. Speedrestriction of 30 kmph imposed. Planned for rebuilding with RCC box.

(iv) Br no 202 Dn (1x 1.8 m) Cracks in abutments. Speed restriction of75kmph imposed. Planned for rebuilding with RCC box.

7.1.2 South East Central Railway:

(i) Bridge number 15 UP (3x60 in KAV-KP) 2 numbers stiffeners werecracked in middle span. Few other stiffeners are developing cracks in allspans. Also loosening of rivets noticed in cross frame.


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(ii) Bridge number 190K UP (3x40 in CHD-VYK):

Both vertical stiffeners at second cross girder of span number 3 cracked.

7.1.3 South Eastern Railway:

(i) Crack in the stiffener angle connecting cross bracings and gussets of spanno 2 of bridge number 394 DN (2x60 on KTD-URA Section on GUA-BJMD-RKSN route) observed.

(ii) Bridge number 520:

Girders of bridge No. 520 Up (22x30.5m) at km 314/5-29 between MDKD-DMAon ADA_ASN section of Adra Division, constructed in 1965, have a long historyof developing cracks in different components in different spans since 1987 andsome increase in the length of crack have been detected in October,2006. ThisBridge lies on the nominated CC+8+2t route and rate of propagation of the crack

has increased after introduction of CC+8+ 2t operations. The length of the crackhas increased at following location:

Location of crack Year first ofdetection

Status as onOctober,2006

Status as onMarch,2007

Span No.9 ASNEnd,-Initial hair crack of175mm at bend ofbent plateconnecting end

Raker & top boom.

1999 Crack lengthincreased by 40mmin 7 years i.e. from1999-2006.


Span No. 13 ASNEnd. D/S,-Hair crack of270mm at Web-flange junction ofinside channel of topchord near end ofgirders over bearingarea.

2003 Crack lengthincreased by 15mmin 3 years i.e. 2003-2006.


(iii) Hair crack at edge of bed plate in pier number 1 and 2 of bridge number39 (1x60+2x40 on RJA-TNZ Section on Aditypur-KGP route) observed.

(iv) Hair crack in slab of bridge number 189 UP (1x2.4m on NSI-DNT Sectionon KGP-Bhadrak route) observed.

7.1.4 South Western Railway:


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(i) Some minor cracks have been observed in the bed blocks of abutment ofbridge no. 139A (1x30.5m span) open web girder built to BGML loading onBellary-Gadag section. However no further propagation of cracks hasbeen observed during last year.

7.1.5 No adverse effect was noticed on the bridges in other Railways.

7.2 ANALYSIS OF INSTRUMENTATION:

7.2.1 The measured deflection for CC+8+2T is well with in the permissible limit ofdeflection.

7.2.2 The stresses measured on the critical members for CC+8+2T are with in thepermissible limit of stresses.

7.2.3 It has been noted that there is large variation in longitudinal forces transferred atbearing level (27.3% to 83.7%), mainly due to large noise to signal ratio noticed

during strain measurement at bearing level and filtration process adopted toclean the signal from noise. However, more number of subsequent trials onbridges for longitudinal forces will indicate the trend more clearly.

7.2.4 Out of 13 bridges where tilt of the pier has been measured, it is varying from 1.2to 2.7 degree on 5 bridges and is minor/ negligible on 8 remaining bridges. Tilt ofthe order of 1.2 to 2.7 degree is considered very high and there appears to beerror in measurement.

8.0 RECOMMENDATIONS:

8.1 Effect of running of CC+8+2T/ CC+6+2T has been reported on 11 bridges. Allthese bridges are required to be kept under close observation by Zonal Railways.Necessary remedial measures should also be taken. The effect on bridges needsto be monitored for a longer period of time as running of CC+8+ 2T/CC+6+2T isin operation since last 2 years only.

8.2 With the introduction of higher axle load, bridge components are subject toincreased number of cycle of higher stress ranges and shall be giving increasedfatigue damage and will affect the residual fatigue life of the bridges. This shouldbe taken into consideration while planning for strengthening/re-building ofbridges.

8.3 As operation of CC+8+2T and CC+6+2T axle load will continue for long time it isdesirable to do instrumentation of more number of bridges by the ZonalRailways.

8.4 Zonal Railways should expedite the instrumentation of bridges already planned.

8.5 Presently the reports of instrumentation done by the instrumenting agencies arebeing submitted very late. Even in some cases, reports have not been submitted


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after 6 months of instrumentation and require early submission by ZonalRailways.


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ANNEXURE 1

List of Identified Iron Ore Routes for Operation of BOXN WagonsLoaded up to CC+8+2t

S.N. Routes for running CC+8+2t loadedBOXN wagons

Railways TotalLength (inKm)

WEF

1. Gua-Barajamda-Rajkharasawan-Sini-Chandil Gardhrubeswar-Joychandipahar-Damodar-Burnpur-Asansol

SER 273 May 05

2. Bondamunda-Sini-Adityapur SER 144 May 05

3. Bolanikhadan-Barajamda SER 15 May 05

4. Bondamunda-Barsuan SER 68 May 05

5. Bimalgarh-Kirburu SER 41 May 05

6. Bhilai-Dhalli Rajhara SECR 76 May 05

7. Damodar-Kalipahari SER,ER

15 May 05

8. Padapahar-Banspani SER 28 May 05

9. Bondamunda-Nugaon-Purnapani SER 19 May 05

10. Bhilai-Ahiwara SECR 7 May 05

11. Waltair-Kirandul Section (Commonly knownas KK Line)

ECoR 476 May 05

12. Vosco-Hospet-Guntakul-Reningunta-Chennai

SWR,SCR,SR

894 May 05

13. Nugaon-Hatia-Muri-Bokaro SER 261 May 05

14. Purulia-Kotshila SER 36 May 05

15. Daitri-Kakhapura-Paradeep ECoR 180 May 05

16. Sambalpur/Titlagarh-Rayagada-Vijayanagaram-Vishakhapattanam

ECoR 503 May 05

17. Asansol-Kallipahari-Durgapur via slow linesonly

ER 42 July 05

18. Swamihalli-Hospet SWR 59 July 05

19. Tornagalu-Ranjitpura SWR 23 July 05

20. Birmitrapur-Bonda Munda SER 27 July 05

21. Adityapur-Kharagpur-Pansukura-Halidia SER 250 Aug 05

22. Kharagpur-Rupsa-Bhadrak-Jakhapura SER,ECoR

227 Aug 05

23. Anara-Rukni-Bhaga SER 34 Aug 05

24. Anara-Adra SER 7 Dec 05

25. Lohardaga-Ranchi SER 72 Dec 05

26. Vyasarpadi-Chennai SR 7 Dec 05

27. Vyasarpadi-Korukkupet-Tondirpet-Attipattu-Ennoreport

SR 8 Dec 05


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28. Guntkal-Samalkot-Kakinada SCR 649 Feb 06

29. Bondamunda-JSG-Raigarh-Kirorimalnagar SER,SECR

183 Feb 06

30. JSG-Samalpur ECoR 48 Feb 06

31. Durgapur-Bardhman (only DN slow line

which is predominantly loading line)

ER 65 May 06

32. Koraputt-Rayagada ECoR 154 May 06

33. Adra-Midnapur SER 162 May 06

34. Manikpur-Jabalpur WCR 265 May 06


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ANNEXURE 2

List of Identified Routes for Operation of BOXN Wagons Loaded up toCC+6+2t

S.No.

Routes for running CC+6+2t loaded BOXNwagons Railways

TotalLength(in Km)

WEF

1. Rajur-Wani-Majri-CTPS CR 69 Nov 05

2. Rajur-Wani-Majri-Wardha-Badnera-Bhusawal-Nasik

CR 676 Nov 05

3. Ghugus-Tadali-CTPS CR 27 Nov 05

4. Ghugus-Tadali-Wardha-Badnera-Bhusawal-Nasik

CR 682 Nov 05

5. Gudhani-Amla-Ghora-Dongri-Sarani CR 239 Nov 05

6. Parasia-Junnaredeo-Amla-Ghora Dongri-Sarani CR 168 Nov 05

7. Talcher-Rajatgarh-Barang-Vijaynagaram-VSKP-BZA-Kondapalli

Ecor,SCR

881 Feb 06

8. Korba-Champa-BSP-APR-NKJ-Bina-Guna-Kota SECR,WCR

992 Feb 06

9. Chainpur-Barkakhana-Muri-Chandil-Adityapur ECR/SER 174 Feb 06

10. Talcher-ROU Ecor,SER

333 Feb 06

11. Bhanola-Andal-Bakreshwar ER 43 Feb 06

12. Pirpainti-Kahalgaon ER 20 Feb 06

13. Pirpainti-Farakka ER 113 Feb 06

14. Radhanagar-Santhaldih SER 59 Feb 06

15. Rajrappa/Barkakhana-Muri-Bokaro SER 120 Feb 06

16. Dugdha-Chandrapura-Bokaro SER 23 Feb 06

17. Jamadoba-BJE-Ananra-CNI-Tata SER 146 Feb 06

18. Bhelatand-Mahuda-TLE-Tudhadih-Bokaro SER 66 Feb 06

19. Sudamdih-BJE-TLE-Tudhadih-Bokaro SER 63 Feb 06

20. Khalari-Patratu ECR 36 Feb 06

21. Phusaro-Bokaro Thermal ECR 15 Feb 06

22. Patherdih-Pradhankanta-Gomoh-Chandrapura-Dugdha

ECR 77 Feb 06

23. Patherdih-Bhojudih ECR 7 Feb 06

24. Patherdih-Patherdih Washery ECR 5 Feb 0625. Phusaro-Katras-Jarangdih-Chandrapura ECR 50 Feb 06

26. Khalari-Garhwa Road ECR 162 Feb 06

27. Ghughus-Chandrapura CR 35 Feb 06

28. Godhini-Wardha CR 85 Feb 06

29. Ballarshah-Chandrapura CR 24 Feb 06

30. Manuguru-GLE-Kothagudam ECR 49 Feb 06

31. Rudrampur-BDCR-Kothagudam ECR 14 Feb 06


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32. Muncheryal-Ramagundam (Two block sectionson the KZJ-BPQ main line

ECR 14 Feb 06

33. Talcher-Rajatgarh-Nirgundi-Paradeep EcoR 197 Feb 06

34. Talcher-Rajatgarh-Barang-Vijayanagarm-Simhadri

EcoR 510 Feb 06

35. Talcher-Kania (Talcher super Thermal PowerStation

EcoR 7 Feb 06

36. Talcher-TTPS-Talcher EcoR 8 Feb 06

37. Talcher-Angul EcoR 15 Feb 06

38. Bhadrachalam-Dornakal SCR Feb 06

39. Dornakal-Kondapalli SCR Feb 06

40. Saenor-Khaperkheda SECR 15 Feb 06

41. Dumaro Khurd-Kanhan-Khaperkheda/Korardi SECR 20 Feb 06

42. Roha-Panvel-Diva-Vasai, Khandwa-Bhusawal CR 145 May 06

43. Khana Link-Kumedpur via Gomanik, MaldaTown

220 May 06

Asnsol-Durgapur, Pradhankhunta-Asansol 94 May 0644. GHD-Sonnagar, GHD-RNQ 100 May 06

Phusro-PKA via Kathras-Pathedih, Kathras-Nichitpur, Kusunda-Tetulmari

60 May 06

Dhanbad-Mughalsarai 402 May 06

45. VZM-RGDA-KRPU-JDB 500 May 06

SQQ-KIA-BHC 105 May 06

46. Delhi-Ambala, Mughalsarai-Ropar/Suratgarh viaZafarabad UTR-Moradabad, Mughalsarai-Tanda, Mughalsarai-Unchahar-GZB-DLI

1307 May 06

Palwal-TRD including third line, Delhi Area 60 May 0647. Mughalsarai-Ghaziabad, Bina-Palwal NCR 1265 May 06

48. Barabanki-Goda-Gorakhapur-Chapra, SitapurCantt-Burhwat

NER 516 May 06

49. Parli-Vikarabad-Wadi-Raichur, Kazipet-Vikarabad, Dornakal-Kazipet

770.85 May 06

Paddapalli-Kazipet, Ramagundam-Pedapalli 112.61 May 06

50. MLDT-KDPR-NJP-NGC, NBQ-GLPT-NGC NFR 830 May 06

51. Mahuda-Bhaga-Bhojudih SER 28 May 06

52. Udhana-Jalgaon WR 307 May 06

53. Bina-Itarasi, Itarasi-Khandwa WCR 408 May 06

54. Itarasi-Goradongri CR 50 Sep 0655. Panskura-Kolkata area terminals of ER via

DankuniER 30 Sep 06

56. BPQ-Manchiryal including MAGH-GDCR branch SCR 160 Sep 06

57. SYI-Karepalli SCR 10 Sep 06

58. Pendekallu-Gooty SCR

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