Major Interchange Modifications at I-80 and San Pablo Dam Road, McBryde Avenue

and El Portal Drive

West Contra Costa Unified School DistrictMarch 12, 2013

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Project Location

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Project Limits

San Pablo Dam Road

El Portal Drive

I-80/San Pablo Dam Road Interchange

McBryde Avenue

• Reduce Traffic Congestion at the I-80/SPDR Interchange

• Improve Safety and Access to, from and on I-80• Provide Safe and Efficient Pedestrian Access

Across I-80• Accommodate Future Traffic Volumes• Provide Better Access to Amador Street

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Project Goals

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Congestion on SPDR,Spillover Impacts

EB Traffic near Denny’s WB Traffic at Amador St

Height of SPDR OC (14’-8” Clearance)

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Safety Issues

WB I-80

Standard Clearance = 16’-6”

14’-8”

Narrow/No Sidewalks

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Safety Issues

SPDR OC Amador St

Narrow Sidewalk(Width = 4’-0”)

Standard Sidewalk Width = 6’-0” (Minimum)

No Sidewalk

Pedestrian OC Does Not Cross Amador St

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Safety Issues

RiversideElementary

School

Amador St

• 283 crossings (7 AM – 4 PM) @ POC AM Peak Hour (8 AM – 9 AM): 83PM Peak Hour (2:30 PM – 3:30 PM): 98

• Amador Street:85th Percentile: 35 mphMax Speed: 45 mphAM Peak Hour (Both Direction): 792 cars/hourPM Peak Hour (Both Direction): 884 cars/hour

ADT on Amador St : 7948 cars/day (6247 NB, 1701 SB)

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Riverside Ave. Pedestrian Overcrossing

Project Features & BenefitsCi

ty o

f Ric

hmon

dCi

ty o

f San

Pab

lo Replace and Widen SPDR OC

ReplaceRiversideAve POC

Full Interchangeat El Portal Dr

Extend Auxiliary Lane

Remove Existing POC

Realign El Portal Dr

Realign Amador St

Construct McBryde Connector Road

Construct On-Ramp

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Relocate El Portal Dr Access

Relocate McBrydeAve Access

McB

ryde

Ave

Amador St

SPDR

El Portal Dr

To San Francisco

To Sacramento

Replace and Widen SPDR OC

Six Lanes5’ (Min) Shoulder7’ Sidewalk

Realign Amador St

Amador St

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Raised Median

Wider RampLeft Turn to Amador St

SPDR

To San Francisco

To Sacramento

Denny’s

Jack in the Box

Relocate El Portal Dr WB On-Ramp

Extend Auxiliary Lane Wider Ramp

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Relocate El Portal Dr Access

New Freeway Entrance

Reduce Accident RatesRealign El Portal Dr

Construct Sound Wall

To San Francisco

To Sacramento

El Portal Dr

El Portal Dr

Shell Gas Station

Relocate McBryde Ave Exit to SPDRMcBryde Ave TrafficExit at SPDR

City

of R

ichm

ond

City

of S

an P

ablo

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Safer Access to McBryde Ave

McBryde Ave Connector Road

Reduce Accident Rates

Eliminate Unsafe Weaving Conflict

Improved Traffic Operations on I-80

McBryde Ave Connector Road

To San Francisco

To San Francisco

To Sacramento

To Sacramento

SPDRAmador St

McB

ryde

Ave

Amador St

Denny’s

Relocate McBryde Ave Exit to SPDR

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To San FranciscoTo Sacramento

SPDR

Replace Riverside Ave

POC Spans Over Amador StRemove

Existing POCRi

vers

ide

Ave

Humboldt Ave

Riverside Elementary

School

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Pedestrian Overcrossing

Safer Access To/From School

Amador St

To San Francisco To Sacramento

Project Cost / Funding

Total Project Cost . . . . . . . . . . . . . . . . . . $113.8 M

Current Funding:

1. Measure J Funds: $7 M

2. City of San Pablo Redevelopment Fund $3 M

3. STIP Funds $15 M

4. Regional Measure 2 Funds $8 M

Available Funds $33.0 M

Funding Shortfall $80.8 M

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Project Phasing

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Project Phasing

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To San Francisco

To Sacramento

SPDR

Amador Street

Bridge Aesthetics

San Pablo Dam Road Overcrossing

Blue-Colored, Curvilinear Fence

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Solid Metal Panels

Perforated Metal Panels

Bridge Aesthetics

Riverside Avenue Pedestrian Overcrossing (POC)

Blue-Colored Fence Ramp Aesthetics(School Side of I-80)

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Colored Tiles

Fractured Rib

Pedestrian Ramps

Fencing

Sample Tiles

Riverside Ave Pedestrian Overcrossing

POC Spans Over Amador St

Riverside Ave

Riverside Elementary

School

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Safer Access To/From School

Amad

or S

t

Reconfigured Parking Lot

Project Schedule 2006 07 08 09 10 11 12 13 14 2015

Begin PA&ED:

September 2006

Begin Final Design: April

2011

IS/EA - PR Approved: May 2010

ROW Certification: Mid 2014

Complete Final Design Phase 1:

Late 2013Award Project Phase 1: Nov

2014

Begin Construction Phase 1: Late 2014

Submitted 35% Design

December 2011

Submitted 65% Design

September 2012Public Meetings – September 12/25, 2012

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Thank You

For more information visit: www.ccta.net

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