Nathdwara Elevated Road

Four laning of Gomati Chauraha - Udaipur Section of NH-8 (from

Km 177/000 to Km 260/100) in the state of Rajasthan under NHDP

Phase IV on Design, Build, Finance, Operate and Transfer (Toll) basis

Traffic Diversion Plan of Elevated

Structure at Nathdwara

Consulting Engineers Group Ltd. Jaipur 1

Nathdwara Elevated Road:-

In Nathdwara town an elevated road in right side on pond is proposed from Ch 219.765 to 220.163 and

elevated road for LHS and RHS of carriageway from Ch 220.163 to 220.983.The alignment is design for

design speed from 45 to 50 kmph and Radius of curve as per schedule D and plan & profile received

from NHAI. As per Schedule D from Ch 220+449 to 221+626 terrain is classified as Mountainous and

steep. The plan & profile of main highway and service road are attached in Annexure I and details of

encroachment in existing ROW are attached in Annexure Ii.

In Elevated 1 alignment is designed as per typical cross section-14 of schedule B.

Following points are considered to design Elevated 2

• In elevated 2 main carriageway is designed as per Minimum vertical clearance 5.5 m maintained

in span no. 8 to 17 as per schedule B Appendix BXIV table B.

• The service road is proposed as per Typical cross section 15 A for pier 1 to Pier 4 and Pier 18 to

20 and Pier 4 to pier 18 as per Typical cross section 15 B for smooth traffic diversion in

construction time as per Traffic diversion plan and corresponding GAD with two options in

Annexure III & IV

• As per schedule B and Plan & profile drawing service road is proposed from ch 219.593 to

221.053 and 221.543 to 223.393 by NHAI and ch 221.053 to ch 221.543 existing road is used as a

service road. A overpass is proposed at ch 221.580 for movement of Udaipur bound traffic.







• As per site condition an existing service road from ch 220.720 near petrol pump to 220+850 in

RHS and ch 220.730 to 220.920 in LHS side.

• The Service road is design as per existing road levels except the location where service road

already exists. In these locations service road is designed as per level of existing service road for

access to the people.

• In LHS side due to non requirement of service road and technical difficulties like acute gradient

the traffic from Gomti to Udaipur side on service road is diverted between pier 12 and 13 to RHS

service road and use the RHS service road for two way movement up to overpass. LHS Service

road may be terminated at Pier 13.

• Equal levels are maintained for LHS and RHS from P8 to P13.







Proposed structure for Elevated structure-II

Two options of span arrangement for elevated corridor 2 have been proposed in view of fast

construction, concession agreement & site constraint.

Option-1: Span arrangement of Elevated corridor as per given in Concession Agreement

An Elevated Road Corridor 2 is proposed with span arrangement (4x40.0+4x41.11

+2x37.0+3x43.85+7x41.43) m with 21.5m overall width consist of both side (Left & Right)

carriageway. Separate superstructure resting on separate substructure has been considered in

view of economy, ease for construction & site constraint.

There are 5 construction stages proposed and schematic traffic movement during stages is

attached in Annexure-1 & General Arrangement drawing is also attached in Annexure-III.







Fig. 2: Proposed Section at Common Abutment location







Fig. 3: Proposed Section at P-13 to A2 location

The type of substructure & superstructure for Elevated structure 2 for both option have been

tabulated below.

Elevated Structure 2_Details of Option-1

SN Chainage Location Falls in

Curve

Radius of

Curve Side

Proposal for

Substructure

Proposal for

Superstructure

Construction

Stages

1 220.173 Common

Abutment Transition 200 Right

Separate

Abutment 3 LHS/1 RHS

2 220.213 P1 Circular 200 Right Separate Pier 3

3 220.253 P2 Transition 200 Right Separate Pier 2

4 220.293 P3 Straight Separate Pier 2



7 220.415 P6 Transition 125 Right Separate Pier 2

8 220.456 P7 Circular 125 Right Separate Pier 2

9 220.497 P8 Transition 125 Right Separate Pier

Separate

Superstructure

for both

carriageway

2








SN Chainage Location Falls in

Curve

Radius of

Curve Side

Proposal for

Substructure

Proposal for

Superstructure

Construction

Stages





14 220.703 P13 Transition 87 Left Separate Pier 3 LHS/4 RHS

15 220.744 P14 Circular 87 Left Separate Pier 2 LHS/4 RHS



18 220.869 P17 Transition 87 Left Separate Pier 2 LHS/4 RHS

19 220.910 P18 Straight Separate Pier 2 LHS/4 RHS

20 220.952 P19 Straight Separate Pier 2 LHS/4 RHS

21 220.993 A2 Transition 175 Right Separate

Abutment 2 LHS/4 RHS

Option-2: Span arrangement of Elevated corridor combination of 30m span of PSC I-girder &

40m span of PSC Box girder

PSC I-girder of 30m span has been proposed in curve of 200m radius & in straight portion from

common Abutment A1 (Ch. 220+173) to Pier P7 (Ch. 220+383) & from Pier P20 (Ch. 220+903) to

Abutment A2 (Ch. 220.993) keeping in view of fast construction. PSC Box girder of 40m in series of

2 span & 3 span diaphragm continuous has been proposed from Pier P7 (Ch. 220+383) to Pier P20

(Ch. 220+903) keeping in view of span arrangement in obligatory span & sharp radius curve of

87m.







Fig. 4: Proposed Section at PSC I-Girder location

Fig. 5: Proposed Section at PSC Box Girder location

The type of substructure & superstructure for Elevated structure 2 for both option have been

tabulated below.








SN Chainage Location Span

Arrangement

Proposal For

Substructure

Falls in

Curve

Radius

of Curve Side

Construction

Stages

1 220.173 A1 Separate

Abutment Transition 200 Right 1 RHS/3 LHS

2 220.203 P1 30 Separate Pier Transition 200 Right 3

3 220.233 P2 30

2 Span

Continuous Separate Pier

Circular

Curve 200 Right 2


5 220.293 P4 30 Separate Pier Straight 2

6 220.323 P5 30

3 Span

Continuous

Separate Pier Straight 2

7 220.353 P6 30 Separate Pier Straight 2

8 220.383 P7 30

2 Span

Continuous Separate Pier Straight 2

9 220.423 P8 40 Separate Pier Straight 125 Right 2


11 220.503 P10 40

3 Span

Continuous

Separate Pier Circular

Curve 125 Right 2

12 220.543 P11 40 Separate Pier Circular

Curve 2

13 220.583 P12 40 Separate Pier Circular

Curve 2

14 220.623 P13 40

3 Span

Continuous

Separate Pier Transition 2

15 220.663 P14 40 Separate Pier Transition 2

16 220.703 P15 40

2 Span

Continuous Separate Pier Straight 87 Left 2

17 220.743 P16 40 Separate Pier Straight 87 Left 3 LHS/ 4 RHS

18 220.783 P17 40 Separate Pier Straight 87 Left 2 LHS/4 RHS

19 220.823 P18 40

3 Span

Continuous

Separate Pier Straight 87 Left 2 LHS/4 RHS

20 220.863 P19 40 2 Span

Separate Pier Straight 87 Left 2 LHS/4 RHS








SN Chainage Location Span

Arrangement

Proposal For

Substructure

Falls in

Curve

Radius

of Curve Side

Construction

Stages

21 220.903 P20 40 Continuous Separate Pier Straight 2 LHS/4 RHS

22 220.933 P21 30 Separate Pier Straight 2 LHS/4 RHS

23 220.963 P22 30 Separate Pier Transition 175 Right 2 LHS/4 RHS

24 220.993 A2 30

3 Span

Continuous Separate

Abutment Transition 175 Right 2 LHS/4 RHS

The traffic circulation plan & General arrangement drawing is attached in Annexure-iV

Nathdwara Elevated Road

Documents

Transcript of Nathdwara Elevated Road