Highway 101 Pedestrian / Bike Bridge Project

  • Project typeTraffic and Transportation
  • Project value$22,889,453
  • Completion DateJuly 26, 2021
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

Upcoming Closures for Bridge Installation

City’s Contractor has scheduled a new installation date for two of the three prefabricated steel bridge segments across West Bayshore and East Bayshore Roads on April 29 and April 30, respectively. The bridge segment across Highway 101 is anticipated to be installed in May as soon as the contractor obtains the necessary transport permit for this unique oversize load . 

The following closures will be in effect for this first phase of installation:

West Bayshore Road Closure:

On April 29, a 100-foot long section of the prefabricated steel bridge will be installed across West Bayshore Road near Adobe Creek. Bridge components, transport truck, and crane will be set up on southbound 101 and West Bayshore road to lift and place the bridge.  West Bayshore Road will be closed for installation from Thursday, April 29 at 8 p.m. until Friday, April 30 at 6 a.m., weather permitting. The following detour will be in effect during the closure: traffic in both northbound and southbound directions via E. Meadow Drive, Louis Road, and Loma Verde Avenue.

See Detour Map for West Bayshore Road Closure(PDF, 4MB) 

East Bayshore Road Closure:

On April 30, a 100-foot long section of the prefabricated steel bridge will be installed over East Bayshore Road. Bridge components, transport truck, and cranes will be set up on northbound 101 and East Bayshore road to lift and place the bridge.  East Bayshore Road will be closed for installation from Friday, April 30 at 8 p.m. until Saturday, May 1 at 6 a.m., weather permitting. The following detour will be in effect during the closure: traffic in both northbound and southbound directions via Embarcadero Road, Greer Road, Oregon Expressway, West Bayshore Road, Fabian Way, Charleston Road and San Antonio Road.

See Detour Map for East Bayshore Road Closure(PDF, 5MB) 

Environmental assessment and project design were completed in late 2017 and early 2019, respectively. Caltrans approved the right-of-way certification, encroachment permit, and Authorization to Proceed in 2019. On November 18, 2019, Council approved the construction contract for the project. Construction began in late January 2020 and is anticipated to be completed by summer 2021.

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
    • Continue steel fabrication and inspections and testing of bridge elements.
    • Complete rebar installation and concrete deck pouring on West Approach Structures. Remove falsework from approach structures.
    • Install the steel bridge sections over Highway 101, and East and West Bayshore Roads in February. Complete main span concrete deck pouring.
    • Complete excavation, rebar installation, and concrete pouring for two retaining walls along West Bayshore Road.
    • Complete concrete pouring for new curb, gutter and sidewalk along West Bayshore Road.
    • Begin railing, fencing, and lighting installations.

     

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)