**Note: Due to the Thanksgiving holiday, this construction update will provide an overview of upcoming work over the next two weeks. See below for more details about Retaining Wall work in the City of San Mateo, pile driving activities and the Thanksgiving Holiday construction schedule.
Thanksgiving Holiday Construction Schedule: Construction will briefly pause in observance of the upcoming Thanksgiving Holiday - Wednesday night, 11/25 through Saturday night, 11/28. Crews will return to work during the night on Sunday, 11/29. The project team wishes you all a safe and healthy Thanksgiving holiday.
Construction Update – Weeks of November 22nd and 29th
Week of November 22nd: Construction activities on U.S. 101 from Whipple Avenue (in Redwood City) to I-380 (in South San Francisco) will include: continued work near the removed sound walls along Bayshore Boulevard (from Newbridge Avenue to just past Dakota Avenue and from 2nd Avenue to Dore Avenue), all within the City of San Mateo. Additional work will include installing stormwater drainage systems, guardrail, temporary lighting, and temporary ramp metering; grading; paving; roadway excavation; and other related construction activities.
Week of November 29th: Construction activities on U.S. 101 from Whipple Avenue to I-380 will include: continued work near the removed sound wall along Bayshore Boulevard (from 2nd Avenue to Dore Avenue), within the City of San Mateo. Additional work will include installing stormwater drainage systems, and guardrail; grading; paving; roadway excavation; demolishing and removing concrete barrier; vegetation treatment work; erosion control work; and other related construction activities.
Most of the work will occur on the freeway lanes, shoulders, and ramps, while sound wall work will occur on city streets adjacent to U.S. 101. More information is provided below.
Construction crews leveling a new section of freeway shoulder.
UPDATE: Daytime Work in the City of San Mateo - Retaining Wall Work
Retaining wall work in the City of San Mateo is scheduled to begin Friday, December 11th. Construction crews will install the foundation of a retaining wall using a hydraulic hammer on southbound U.S. 101, south of the on-ramp from East Hillsdale Boulevard. This work is scheduled to take place from 1:00 PM to 9:00 PM and is anticipated to take place over 5 non-consecutive working days once initiated. Noise and vibration from the intermittent use of a hydraulic hammer as well as other common construction-related sounds such as backup alarms should be anticipated.
In addition, the closure of Eastbound East Hillsdale Boulevard to Southbound U.S. 101 On-Ramp and Westbound East Hillsdale Boulevard to Southbound U.S. 101 On-Ramp will be required for safety reasons.
Check the “Construction Update” tab on [101express.com]101express.com for schedule updates.
Nighttime Pile Driving in the City of San Carlos
Beginning the week of December 6th, construction crews will be pile driving on northbound U.S. 101, adjacent to the on-ramp from Westbound Holly Street, in the City of San Carlos. This work will support the construction of a concrete barrier containing a ramp metering pole, to manage the flow of traffic from the Westbound Holly Street on-ramp. Travelers may see construction crews between the hours of 8:00 PM to 5:00 AM.
Sound Wall Work: Construction crews working on the sound walls continue to implement periodic traffic control on Bayshore Boulevard (from Newbridge Avenue to just past Dakota Avenue and from 2nd Avenue to Dore Avenue) in the City of San Mateo. Traffic control may occur from 8:00 AM to 5:00 PM, Monday through Friday. Watch for detour signs. After 5:00 PM, the road will be restored to two-way traffic.
Nighttime Work Near Removed Sound Wall in the City of San Mateo: Construction crews will be working on U.S. 101 near the removed sound wall along Bayshore Boulevard, from 2nd Avenue to Dore Avenue, in the City of San Mateo. Nearby residents and travelers may see construction crews during the night and early morning (from 8:00 PM to 5:00 AM). This work may include noise and vibration from grading and paving, as well as other common construction-related sounds such as back-up alarms. This work is anticipated to conclude the week of November 22nd. Activities are expected to be intermittent throughout the week.
Sound Wall Nearing Completion: The relocation of the section of sound wall along Bayshore Boulevard from Newbridge Avenue to just past Dakota Avenue in the City of San Mateo is anticipated to be completed the week of November 22nd. On-street parking and two-way traffic will be restored to this area of Bayshore Boulevard once sound wall reconstruction is complete.
Nighttime Freeway Lane Closures: Nightly freeway lane closures may occur on northbound and southbound U.S. 101 from 7:00 PM to 6:30 AM, Sunday night to Friday morning. Due to low traffic volumes, project-related traffic delays are anticipated to be minimal. Caltrans will continue to monitor the flow of traffic and make adjustments, as necessary.
Freeway Ramp Closures: Temporary ramp closures may occur during the night in both the northbound and southbound directions of the freeway. However, consecutive interchanges for northbound or southbound ramps will not be closed at the same time.
Nighttime ramp closures: Short-term nighttime ramp closures may occur the week of November 22nd (between Sunday night and Friday morning) in/near the cities of Redwood City, San Carlos, Belmont, San Mateo, Foster City, Burlingame, Millbrae, and San Bruno at the following locations (listed from south to north). Changeable message signs near the ramps will have exact closure times and locations.
- Eastbound/Westbound Holly Street, Southbound U.S. 101 On/Off-Ramp
- Eastbound/Westbound Holly Street, Northbound U.S. 101 On-Ramp
- Northbound U.S. 101, Northbound Holly Street Off-Ramp
- Westbound Holly Street, Southbound U.S. 101 On-Ramp
- Eastbound Marine Parkway, Northbound U.S. 101 On-Ramp
- Westbound Marine Parkway, Northbound U.S. 101 On-Ramp
- Westbound East Hillsdale, Northbound U.S. 101 On-Ramp
- Eastbound/Westbound Fashion Island Boulevard, Southbound U.S. 101 On/Off-Ramp
- Northbound U.S. 101, Eastbound/Westbound Route 92 Connector Ramp
- Westbound Route 92, Southbound U.S. 101 Connector Ramp
- Eastbound/Westbound 3rd/4th Avenue, Northbound U.S. 101 On-Ramp
- Northbound U.S. 101, Eastbound Dore Avenue Off-Ramp
- Poplar Avenue, Southbound U.S. 101 On/Off-Ramp
- Northbound U.S. 101, Peninsula Avenue Off-Ramp (Closures possible lasting until 7:00 AM at this location)
- Eastbound Millbrae Avenue, Southbound U.S. 101 On-Ramp
- Northbound U.S. 101, Eastbound/Westbound Millbrae Avenue Off-Ramp
- Southbound U.S. 101, Eastbound/Westbound Millbrae Avenue On/Off-Ramp
- Westbound Millbrae Avenue, Southbound U.S. 101 On-Ramp
- Eastbound/Westbound San Bruno Avenue, Southbound U.S. 101 On-Ramp
- Northbound U.S. 101, Eastbound San Bruno Avenue On-Ramp
Nighttime ramp closures:
- Will be displayed on changeable message signs within the construction zone
- Will begin after 7:00 PM and reopen by 6:00 AM, unless otherwise noted above
- Will have detour signs posted
Visit our website at 101express.com for more information about the project. Follow us on Twitter @CaltransD4.
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