Figure I-7 (85x11)-

Benson Road

Syca

more

Aven

ue

Hall A

venue

Cliff

Aven

ue

Lewi

s Ave

nue

§̈¦229

Unnamed Tributary

Unnamed Tributary

Other cultural resources were identified east of I-229 and near Benson Road east of I-229and will be avoided.

Big Siou

x River

Big Sioux River

Food-N-Fuel

Former BottMachinery

Great DaneTrailers

Former PaulHarrisTrucking

MidwestCoastTransport Custom Truck

Equipment Pump-N-PakGas Station

Holiday GasStation

Truck andTire Service

Property

PATH: H:\GIS\PROJECTS\SDDOT\I229_BENSON\MAP_DOCS\DRAFT\ALTERNATIVES_ANALYSIS\FIG_ENV_CONSTRAINTS_11X17.MXD - USER: JBRISBOI - DATE: 10/16/2018

ENVIRONMENTAL CONSTRAINTSI-229 BENSON ROAD INTERCHANGE MODIFICATION STUDY

0 0.4Miles

O

LEGENDStudy Area

Historical Recognized Environmental ConditionsRecognized Environmental ConditionsSioux Falls Stormwater BMP

Delineated StreamsDelineated Wetlands

FEMA Floodplain100 Year Floodplain

Floodway

Figure

Sioux Falls, SDI-229 Exit 9 (Benson Road) IMJR

Date:

Drawn By:

Chked By:

Revision:

Date:

Potsd

am Ave

nue

St Paul Ave

nue

Benson Road

INTERSTATE

229

52nd Street N

Hainje A

venue

54th Street N

Legend

0

Scale in Feet

< 3

3 >

< 1

< 2

2 >

< 2

2 >

1 >

< 2

3 >

2 >

2 >

2 >

< 4

2 >

< 2

V = 30 mph300' Radius

Retaining walls necessary for power poles and pedestrian underpass.

Raised median Benson Road with left turn lanes.

Widen existing Benson Road bridge.

3rd EB lane on Benson Road from Lewis Avenue to I-229.

3rd WB lane on Benson Road from I-229 to the west.

movement.Realign I-229 NB off-ramp, EB on Benson Road yield

Pedestrian underpass for NB off-ramp / NB on-ramp loop.

30 mph 2-lane ramp loop for NB I-229 to WB Benson Road traffic.

Benson Road to SB I-229 traffic.

Dual right turn lane and free right turn movement for EB

Benson 1a Option Features:

< 3

375 750

2-Lane Northeast Quadrant Loop with 3-Lane SB On-Ramp

Alternative Scenario 1aB.Miller

5/14/2018

P.Sanow

5/14/2018

< 1

I-1

Number of Traffic Lanes

Signalized Intersection

Road Closure

ROW Acquisition

Control of Access

Existing ROW / Property Line

Retaining Wall

Bridge Construction

Raised Median Construction

Pedestrian Underpass Construction

Interchange/Ramp/Loop Construction

additional left turn storage

section to be restriped to provide

Southbound Lewis Avenue existing

Note:

10/8/2018

Lewis A

venue

Figure


Date:

Drawn By:

Chked By:

Revision:

Date:

Potsd

am Ave

nue

St Paul Ave

nue

Benson Road

52nd Street N

Hainje A

venue

54th Street N

0

Scale in Feet

< 3

3 >

< 1

< 2

2 >

< 2

2 >

1 >

< 2

2 >

1 >

2 >

2 >

< 4

2 >

< 2


375 750

2-Lane Northeast Quadrant Loop with 2-Lane SB On-Ramp

Alternative Scenario 1bB.Miller

5/14/2018

P.Sanow

5/14/2018

< 1

< 2






Realign I-229 NB off-ramp, EB on Benson Road yield movement.



Significant queuing for EB on Benson Road to SB on 1-229 traffic.

Benson Road to SB I-229 traffic.

Single right turn lane and free right turn movement for EB

Benson 1b Option Features:

I-2

Legend

< 3 Number of Traffic Lanes


Road Closure

ROW Acquisition

Control of Access


Retaining Wall

Bridge Construction







Note:

10/8/2018

Lewis A

venue

Figure


Date:

Drawn By:

Chked By:

Revision:

Date:

Potsd

am Ave

nue

St Paul Ave

nue

Benson Road

52nd Street N

Hainje A

venue

54th Street N

0

Scale in Feet

< 3

3 >

< 1

< 2

2 >

< 2

1 >

< 2

3 >

2 >

2 >

2 >

< 4

2 >

< 2


375 750

B.Miller

5/14/2018

P.Sanow

5/14/2018

< 1

with 3-Lane SB On-Ramp

2-Lane Collector - Distributor (CD) Lane Northeast Quadrant Loop

Alternative Scenario 1c









Road to SB I-229 traffic.

Dual right turn lane and free right turn movement for EB Benson

Collector-Distributor (CD) lane for NB off-ramp connection.

Benson 1c Option Features:

4 >

< 3

4 >

I-3

Legend



Road Closure

ROW Acquisition

Control of Access


Retaining Wall

Bridge Construction







Note:

10/8/2018

Lewis A

venue

Figure


Date:

Drawn By:

Chked By:

Revision:

Date:

Potsd

am Ave

nue

St Paul Ave

nue

Benson Road

52nd Street N

Hainje A

venue

54th Street N

0

Scale in Feet

< 3

3 >

< 1

< 2

2 >

< 2

2 >

1 >

< 2

2 >

1 >

2 >

2 >

< 4

2 >

< 2


375 750

B.Miller

5/14/2018

P.Sanow

5/14/2018

< 1

2-Lane SB On-Ramp

2-Lane Partial Clover Leaf Northeast Quadrant Loop with

Alternative Scenario 1d







(assumed).

Inside / outside lanes will have the ability to turn right on red

Benson Road.

Pedestrians allowed to cross off-ramp traffic at the signalized WB

at signal.

30 mph 2-lane for NB I-229 to WB Benson Road traffic controlled

Benson 1d Option Features:

< 2

I-4

Legend



Road Closure

ROW Acquisition

Control of Access


Retaining Wall

Bridge Construction




10/5/2018




Note:

Lewis A

venue

Figure


Date:

Drawn By:

Chked By:

Revision:

Date:

Potsd

am Ave

nue

St Paul Ave

nue

Benson Road

52nd Street N

Hainje A

venue

54th Street N

0

Scale in Feet

< 3

3 >

< 1

< 2

2 >

< 2

1 >

< 2

3 >

2 >

2 >

2 >

< 4

2 >

< 2


375 750

B.Miller

5/14/2018

P.Sanow

5/14/2018

< 1

4 >

< 3

4 >

2-Lane SB On-Ramp

2-Lane Partial Clover Leaf Northeast Quadrant with CD Lane and

Alternative Scenario 1e

Dual right turn lane and free right turn movement for EB Benson Road to SB I-229 traffic.







Inside / outside lane will have the ability to turn right on red (assumed).

Pedestrians allowed to cross the WB Benson Road traffic at the signalized off-ramp.

30 mph 2-lane for NB I-229 to WB Benson Road traffic controlled at signal.

Collector-Distributor (CD) lane for NB off-ramp loop.

Benson 1e Option Features:

I-5

Legend



Road Closure

ROW Acquisition

Control of Access


Retaining Wall

Bridge Construction







Note:

10/8/2018

Lewis A

venue

Figure


Date:

Drawn By:

Chked By:

Revision:

Date:

Potsd

am Ave

nue

St Paul Ave

nue

Benson Road

52nd Street N

Hainje A

venue

54th Street N

0

Scale in Feet

< 3

3 >

< 2

2 >

< 2

2 >

3 >

2 >

2 >

2 >

< 2

375 750

B.Miller

5/14/2018

P.Sanow

5/14/2018

< 2

< 1

< 4

< 4

3 >

2 >

3 >

Add 2 WB Lanes to Existing Overpass.

Diverging Diamond Interchange with 3-Lane SB On-Ramp

Alternative Scenario 4a

traffic.

2-lane free right turn movement for EB Benson Road to SB I-229

Potsdam Avenue.

Realign west I-229 ramps to maximize separation distance to


Diverging Diamond Interchange configuration.

Benson 4a Option Features:

< 2

I-6

Legend



Road Closure

ROW Acquisition

Control of Access


Retaining Wall

Bridge Construction




10/8/2018




Note:

515'

505'

Lewis A

venue

Figure


Date:

Drawn By:

Chked By:

Revision:

Date:

Potsd

am Ave

nue

St Paul Ave

nue

Benson Road

52nd Street N

Hainje A

venue

54th Street N

0

Scale in Feet

< 3

3 >

< 2

2 >

< 2

2 >

2 >

2 >

2 >

< 2

375 750

B.Miller

5/14/2018

P.Sanow

5/14/2018

< 1

< 4

< 43 >

2 >

3 >

Add a Separate Structure for 2 EB Lanes

Diverging Diamond Interchange with 3-Lane SB On-Ramp

Alternative Scenario 4b

traffic.

2-lane free right turn movement for EB Benson Road to SB I-229

Potsdam Avenue.

Realign west I-229 ramps to maximize separation distance to

existing.

traffic will be on proposed on separate bridge to the north of the

Existing Benson Road bridge will be used for WB traffic only. EB

Diverging Diamond Interchange configuration.

Benson 4b Option Features:

3 >

< 2

< 2

I-7

Legend



Road Closure

ROW Acquisition

Control of Access


Retaining Wall

Bridge Construction




515'




Note:

10/8/2018

505'

Lewis A

venue

Figure


Date:

Drawn By:

Chked By:

Revision:

Date:

Potsd

am Ave

nue

St Paul Ave

nue

52nd Street N

54th Street N

0

Scale in Feet

375 750

B.Miller

5/14/2018

P.Sanow

5/14/2018

Westbound 3rd Lane from Lewis Avenue to I-229

Alternative Scenario Benson Road

WB and EB 3/4 access at Potsdam Avenue.

Widen Lewis Avenue intersection on south side of Benson Road.

Raised center median with left turn lanes.

EB 3rd lane from Casco Avenue to I-229.

WB 3rd lane from Lewis Avenue to I-229.

Benson C1a Option Features:

National Avenue

Benson Road

Van Eps

Avenue

Casc

o A

venue

Lewis A

venue

E 50th Street N

< 3 < 4

3 >< 4

2 >

A-1

Legend



Road Closure

ROW Acquisition

Control of Access


Retaining Wall

Bridge Construction







Note:

515'

505'

10/8/2018

Figure


Date:

Drawn By:

Chked By:

Revision:

Date:

INTERSTATE

229

0

Scale in Feet

375 750

B.Miller

5/14/2018

P.Sanow

5/14/2018

4-Lane Divided Section to Hall Avenue east of I-229

Alternative Scenario Benson Road

< 4

2 >< 2

2 >

Bahnso

n A

venue

Hall

Ave

nue

Benson Road

on Benson Road from I-229 to Sycamore Avenue.

2 lanes in each direction with raised median and left turn lane

Future Benson Road extension across the Big Sioux River.

Benson C1 Option Features:

A-2

Legend



Road Closure

ROW Acquisition

Control of Access


Retaining Wall

Bridge Construction




10/8/2018

Figure I-7 (85x11)-

Documents

Transcript of Figure I-7 (85x11)-