Highway 101 Pedestrian / Bike Bridge Project

  • Project typeTraffic and Transportation
  • Project value$22,889,453
Highway 101 Bridge Project Rendering

Project Description

In the heart of Silicon Valley, Palo Alto (along with its neighbor to the south, Mountain View) is home to hundreds of technology and research-based companies, including a number of major employers such as Google, Intuit, and Space Systems Loral that have clustered in close proximity to Highway 101 and the Bay Trail. To better link these growing job centers with regional trails and bicycle facilities, and improve access to superb recreation opportunities like the Baylands, the City has prioritized the funding and construction of a new, year-round bicycle and pedestrian overcrossing over Highway 101 at Adobe Creek near the City’s southern border.

The Highway 101 Pedestrian/Bike Bridge Project at Adobe Creek will replace the existing seasonal Benjamin Lefkowitz Underpass that is available only half the year (on average) due to seasonal flooding. It would also complement an existing, Americans with Disabilities Act (ADA) non-compliant, overpass that is 1.25 miles north. The new overcrossing will include a new Class I trail connection, connecting West Bayshore Road to the Baylands.

The Project is funded from local, state and federal sources, including a $4 million grant from the County of Santa Clara’s Stanford Recreation Mitigation Fund.

Scope of Work

  • The project includes the principal span structures consisting of self-weathering steel trusses over Highway 101 and East and West Bayshore Roads, the east and west concrete approach structures, three trailheads, and the Adobe Creek Reach Trail. The pathway will be 12 feet wide.
  • The Adobe Creek Reach Trail will connect the trailheads at East Meadow Drive and West Bayshore Road.
  • Site amenities, signage, landscaping, and lighting are also included.

View the Concept Design Rendering for the Adobe Creek/101 Overcrossing

Project Status

Pedestrian Bike Bridge Real Time Images

Project Timeline

  • Stage 1

    01/2017 - 07/2019

    Design of the project. 

  • Stage 2

    01/2020 - 12/2020
    • Pre-construction meeting
    • Submittals preparation and review.  
    • Stakeholder coordination.
    • Project documentation, management, and control.
    • Implementation of Stormwater Pollution Prevention and Traffic Control Plans.
    • Vegetation removal.
    • Joint utility trench construction and utilities relocation along West Bayshore Road.
    • Bridge piles, columns, and supports construction.
    • Adobe Creek Bridge fabrication, installation, and deck concrete pouring.
    • East Approach Structure falsework, rebar installation, and deck concrete pouring.
    • Steel fabrication and inspections and testing for bridge elements.
    • Falsework installation for West Approach Structure.

     

  • Stage 3

    01/2021 - 03/2021
    • Rebar installation and concrete deck pouring on West Approach Structures. Removed and off-hauled falsework material from approach structures.
    • Retaining walls along West Bayshore Road and Barron Creek.
    • Structural backfill and embankment construction behind the retaining wall at Pedestrian Access Ramp. 
    • Adobe Creek Reach Trail and 3600 West Bayshore parking lot grading.
    • Concrete pouring for new curb, gutter and sidewalk along West Bayshore Road.
    • Began installing light poles and miscellaneous electrical and lighting improvements.
    • Began installing stormwater treatment unit and miscellaneous site improvements.
    • Began railing fabrication.
    • Continued steel fabrication and inspections and testing of bridge elements.
  • Stage 4

    04/2021 - 08/2021
    • Install steel bridge sections over Highway 101, and East and West Bayshore Roads. 
    • Complete main span concrete deck pouring.
    • Install bridge railing, fencing and lighting. 
    • Complete Pedestrian Access Ramp concrete pouring along West Bayshore Road.
    • Complete paving at Adobe Creek Reach Trail and 3600 West Bayshore Road parking lot.
    • Landscaping and irrigation.
    • Signage, striping, and miscellaneous site improvements.

Upcoming Meetings

There are no upcoming meetings. Please check back for updates.

Project Documents

Documents and Staff Reports

Mitigation Monitoring and Reporting Program(PDF, 210KB)
Project Plans and Graphics(PDF, 28MB)
November 27, 2017 City Council Staff Report ID# 8260(PDF, 3MB)
September 26, 2017 Parks and Recreation Commission Staff Report(PDF, 28MB)
September 26, 2017 Parks and Recreation Commission Presentation Materials(PDF, 312KB)
September 13, 2017 Planning and Transportation Commission Staff Report ID #8258(PDF, 2MB)
September 13, 2017 Planning and Transportation Commission Presentation Materials(PDF, 2MB)
Final Initial Study / Mitigated Negative Declaration(PDF, 3MB)

Appendix A: Visual Impact Assessment (PDF, 2MB)
Appendix B: Natural Environment Study(PDF, 8MB)
Appendix C: Biological Assessment(PDF, 6MB)
Appendix D: Tree Survey Report(PDF, 5MB)
Appendix E: Historic Property Survey Report(PDF, 4MB)
Appendix F: Paleontological Identification Report(PDF, 2MB)
Appendix G: Preliminary Foundation Report(PDF, 5MB)
Appendix H: Hazardous Materials Assessment(PDF, 71MB)
Appendix I: Construction Noise Assessment(PDF, 339KB)

May 31, 2017, Planning and Transportation Commission Presentation Materials(PDF, 4MB)
May 31, 2017, Planning and Transportation Commission Staff Report ID# 8014(PDF, 26MB)
March 28, 2017, Parks and Recreation Commission Staff Report and Meeting Materials(PDF, 26MB)
November 2016 City Council Staff Report ID# 7209(PDF, 27MB)
May 2016 City Council Staff Report ID# 6578(PDF, 10MB)
December 2015 City Council Staff Report ID# 5780(PDF, 483KB)
March 2015 City Council Staff Report ID# 5523(PDF, 371KB)
September 2014 City Council Staff Report ID# 5050(PDF, 6MB)