Dumbarton Transportation Corridor Study

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Project Overview

In February of 2016, SamTrans initiated the Dumbarton Transportation Corridor Study with the purpose of identifying improvements to enhance mobility in the Dumbarton Corridor between Alameda, San Mateo, and Santa Clara counties. Working collaboratively with project partners, including Facebook, the San Mateo County Transportation Authority (TA), Alameda County Transportation Commission (ACTC), and AC Transit, the study evaluated a variety of transportation alternatives on the Dumbarton Bridge (Highway 84) and its approaches, as well as examined how to rehabilitate and repurpose the Dumbarton rail bridge for transit purposes. In general, the study recommends a multimodal approach with both operational and infrastructure improvements on Highway 84 and the Dumbarton rail bridge that will be phased over time.

Project Update

An initial draft of the Study was presented to the SamTrans Board of Directors in August 2017 and was followed by an extensive stakeholder and public outreach process throughout August and September 2017. Comments and questions received during the outreach process were documented, answered and incorporated into the Final Dumbarton Transportation Corridor Study. Recommendations included in the Final Dumbarton Transportation Corridor Study are consistent with the draft report, with the exception of one change: The potential bicycle/pedestrian multi-use path in the Dumbarton rail right-of-way from Redwood City to East Palo Alto, which was not previously recommended due to right-of-way constraints, will not be eliminated at this phase of study.

Next Steps

On December 6, 2017 the SamTrans Board of Directors will be asked to approve the Final Dumbarton Transportation Corridor Study and authorize additional planning and conceptual design work. This work will come in the form of a Technical Refinement to explore creative solutions and answer key questions received throughout the stakeholder and public outreach process, including, but not limited to:

  • Is it possible to safely implement a shared bus and bicycle lane?
  • How much would bus operations, ridership, and person throughput be impacted if only one bus lane was constructed, leaving room for the bicycle/pedestrian multi-use path?
  • What are the operational, ridership and person throughput impacts of only constructing dedicated bus lanes in the right-of-way from the Highway Bridge to US 101 express lanes, leaving room for a bicycle/pedestrian multi-use path in the right-of-way from US 101 to Redwood City?
  • Is it possible to obtain additional right-of-way in the Corridor without high costs and community impacts?

There will also be additional study of bicycle/pedestrian connections outside of the Dumbarton right-of-way that would further mobility objectives for the communities along the right-of-way, like increasing connectivity to the Bay Trail. This Technical Refinement study will also include additional rail operations analysis and a deeper look at high-capacity, standard gauge rail technologies. Such planning efforts will include additional outreach to stakeholders and the public.

To view the Final Dumbarton Transportation Corridor Study visit:

DTCS Final Report, November 2017 (PDF, 14MB)

DTCS Final Report - Separate PDFs by Chapter and Appendix, November 2017 (via DropBox - www.samtrans.com/DTCS2017)

To view Frequently Asked Questions developed in response to questions received in the last round of outreach visit:

DTCS - FAQs Nov. 2017 (PDF, 992KB)

 

Other Resources

Study Summary

January 2016 Stakeholders Meeting Presentation

May 2016 Public Meeting Presentation

September 2016 Public Meeting Presentation

August 2017 Samtrans Board Presentation

August 2017 Public Meeting Presentation

 

Outreach
SamTrans conducted extensive public outreach throughout the study process, holding stakeholder and public meetings at major study milestones and soliciting input on topics such as project goals and objectives, evaluation criteria, initial alternatives and screening results, alternatives carried forward, etc. 

Past 2017 SamTrans Public Meetings

Tuesday, August 15, 2017
6:30 p.m. – 7:30 p.m.
Union City Library 
34007 Alvarado-Niles Road, Union City, CA 94587

Wednesday, August 16, 2017
6:30 p.m. – 7:30 p.m.
East Palo Alto Library/City Hall
Community Room
2415 University Avenue, East Palo Alto, CA 94303

September 13, 2017 at 6:30 p.m.
Public Meeting
Mark Green Sports Center
31224 Union City Blvd., Union City, CA 94587

September 25, 2017 at 6:30 p.m.
Public Meeting
Menlo Park Senior Center
100 Terminal Ave., Menlo Park, CA 94025

SamTrans staff also presented the study as part of the already scheduled public meetings listed below:

August 17, 2017 at 7 p.m.
County of San Mateo Bicycle and Pedestrian Advisory Committee
San Mateo City Hall
330 W. 20th Avenue, San Mateo

August 22, 2017 at 7 p.m.
Menlo Park City Council
Menlo Park City Hall
701 Laurel Street, Menlo Park

August 24, 2017 at 7 p.m.
North Fair Oaks Community Council
Fair Oaks Community Center
2600 Middlefield Road, Redwood City

August 30, 2017 at 6:30 p.m.
SamTrans Citizens Advisory Committee
Edward J. Bacciocco Auditorium 
1250 San Carlos Ave. 
San Carlos, CA 940701250 San Carlos Ave. 
San Carlos, CA 94070

September 5, 2017 at 4:30 p.m.
San Mateo County Transportation Authority Citizens Advisory Committee 
Edward J. Bacciocco Auditorium 
1250 San Carlos Ave. 
San Carlos, CA 94070

September 6, 2017 at 8 a.m.
Palo Alto Rail Committee
Palo Alto City Hall
250 Hamilton
Palo Alto, CA 94301

September 7, 2017 at 10 a.m.
JPB Board Meeting
Edward J. Bacciocco Auditorium 
1250 San Carlos Ave. 
San Carlos, CA 94070

September 7, 2017 at 5 p.m.
San Mateo County Transportation Authority Board Meeting
Edward J. Bacciocco Auditorium 
1250 San Carlos Ave. 
San Carlos, CA 940701250 San Carlos Ave. 
San Carlos, CA 94070

September 11, 2017 at 7 p.m.
East Palo Alto Planning Commission
City Council Chambers
2415 University Ave
East Palo Alto, CA 94303

Tuesday, September 12, 2017 at 6 p.m.
Redwood City Complete Streets Advisory Committee
Redwood City Hall
1017 Middlefield Road
Redwood City, CA 94063

Thursday, September 14, 2017 at 7:30 p.m.
Newark City Council
City Council Chamber
37101 Newark Boulevard 
Newark, CA 94560

September 19, 2017 at 7:30 p.m.
East Palo Alto City Council
City Council Chambers
2415 University Ave
East Palo Alto, CA 94303

 

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11/21/17 - LL/MR/RJC