2021-03-28-101-express-update

**Note: An “Upcoming Overnight Closures on U.S. 101” page on 101express.com for more information.

Construction Update – Week of March 28th

South of Whipple Avenue: This week, construction activities on U.S. 101 from San Antonio Road (in Palo Alto) to Whipple Avenue (in Redwood City) include landscaping work and minor construction activities.

North of Whipple Avenue: This week, construction activities on U.S. 101 from Whipple Avenue to I-380 (in South San Francisco) include pavement restriping near the completed sections of sound wall on Bayshore Boulevard in the City of San Mateo (more information below); installation of stormwater drainage systems, temporary concrete barriers, new electrical boxes, lighting, traffic monitoring system components, and guardrails; temporary restriping of pavement; concrete and barrier demolition; overhead sign work; landscaping and erosion control work; electrical service work; roadway excavation; grading; paving; drainage system maintenance; and temporary replacement of median electrical components.

Most of the work will occur on the freeway lanes, median, shoulders, and ramps. Pavement restriping will occur near the completed sections of sound wall and electrical service work will occur on city streets adjacent to U.S. 101. Construction activities may occur during the day or night, and noise from construction-related sounds such as backup alarms and hammering should be anticipated.

Construction crews excavating in the freeway shoulder

Construction crews excavating in the freeway shoulder

OVERNIGHT CLOSURE on Northbound U.S. 101 (from East Hillsdale Boulevard to SR-92) – Sunday, April 4th from 11:00 PM to Monday, April 5th at 4:00 AM
An overnight closure on Northbound U.S. 101 is required to remove an overhead sign structure between East Hillsdale Boulevard and SR-92, in/near the cities of San Mateo and Foster City. This will occur beginning on Sunday, April 4th at 11:00 PM to Monday, April 5th at 4:00 AM, when traffic volumes are usually light. Detour signs will be in place to clearly guide motorists through city streets until they get back on the freeway. Motorists are advised to be familiar with the detour routes and allow extra travel time. The closure location and time will be displayed on changeable message signs at least one week in advance of the closure.

Detour Routes:

Check the “Upcoming Overnight Closures on U.S. 101” page on 101express.com for a detailed map of the exact detour routes.

Sound Wall Update

All three sections of sound wall along Bayshore Boulevard, from Newbridge Avenue to just past Dakota Avenue, from 2nd Avenue to Dore Avenue, and from Dore Avenue to East Poplar Avenue, in the City of San Mateo have been rebuilt.

Pavement restriping near the completed sections of sound wall, previously scheduled to take place the week of March 21st, has been delayed, and is currently scheduled to occur the week of March 28th. This work will require temporary lane closures (one-way traffic) on Bayshore Boulevard between 7:00 AM to 5:00 PM, Monday through Friday. Cones and flaggers will safely direct traffic around closures. On-street parking along Bayshore Boulevard will be unavailable until this work is complete. We appreciate the continued patience of the residents and nearby travelers as we near the end of sound wall-related work!

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, Saturday night to Friday morning. Due to low traffic volumes, project-related traffic delays are anticipated to be minimal. Caltrans continues to monitor the flow of traffic and make adjustments, as necessary.

Freeway Ramp Closures: Temporary ramp closures in both the northbound and southbound directions of the freeway may occur during the day or night. However, consecutive interchanges for northbound and southbound ramps will not be closed at the same time.

Nighttime ramp closures: Short-term nighttime ramp closures may occur at the following locations (listed from south to north) during the week of March 28th (between Sunday night and Friday morning), in/near the cities of Redwood City, San Carlos, Belmont, San Mateo, Foster City, Burlingame, Millbrae, San Bruno, and South San Francisco. Changeable message signs near the ramps will have exact closure times and locations.

South of Whipple Avenue:

Eastbound/Westbound Seaport Boulevard, Northbound U.S. 101 On-Ramp

North of Whipple Avenue:

Eastbound Harbor Boulevard, Southbound U.S. 101 On-Ramp
Eastbound/Westbound Ralston Avenue, Southbound U.S. 101 On/Off-Ramp
Westbound East Hillsdale Boulevard, Northbound U.S. 101 On-Ramp
Westbound East Hillsdale Boulevard, Southbound U.S. 101 On-Ramp
Southbound U.S. 101, Eastbound/Westbound East Hillsdale Boulevard Off-Ramp
Eastbound Route 92, Northbound U.S. 101 Connector Ramp
Eastbound Route 92, Southbound U.S. 101 Connector Ramp
Eastbound/Westbound Fashion Island Boulevard, Northbound U.S. 101 On-Ramp (closures possible starting at 6:00 PM at this location)
Westbound Route 92, Southbound U.S. 101 Connector Ramp
Northbound U.S. 101, Eastbound/Westbound Route 92 Connector Ramp
Southbound U.S. 101, Eastbound/Westbound Route 92 Fashion Island Boulevard Connector Ramp
Kehoe Avenue, Northbound U.S. 101 On/Off-Ramp
Eastbound/Westbound 3rd/4th Avenue, Southbound U.S. 101 On/Off-Ramp
Eastbound/Westbound 3rd/4th Avenue, Northbound U.S. 101 On-Ramp
Northbound U.S. 101, Eastbound/Westbound 3rd Avenue Off-Ramp
Eastbound Millbrae Avenue, Northbound U.S. 101 On-Ramp
Southbound U.S. 101, Eastbound/Westbound Millbrae Avenue Off-Ramp
Westbound Millbrae Avenue, Northbound U.S. 101 On-Ramp
Northbound SFO, Northbound U.S. 101 On-Ramp
Eastbound/Westbound San Bruno Avenue, Southbound U.S. 101 On-Ramp
Northbound U.S. 101, Westbound I-380 Connector Ramp
Southbound U.S. 101, Produce Avenue/Airport Boulevard Off-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

City Streets: In addition to the sound wall activities described above, work to connect power to overhead signs and freeway lighting will occur on streets in the City of San Mateo. Nearby residents and travelers can expect to see crews from 8:00 AM to 5:00 PM, Monday through Friday. This work will produce intermittent low vibrations and construction vehicle noise, and will also require temporary lane closures (one-way traffic). Cones and flaggers will safely direct traffic around closures. Electrical service work may occur at the following location:

South Amphlett Boulevard and 10th Avenue in the City of San Mateo

Upcoming Construction (North of Whipple Avenue): Construction activities in the coming weeks on U.S. 101 from Whipple Avenue to I-380 (in South San Francisco) will include an overnight freeway closure on Northbound U.S. 101 in/near the cities of San Mateo and Foster City to remove an overhead sign structure; the installation of electrical boxes, guardrails, stormwater drainage systems, traffic monitoring system components, lighting, and temporary concrete barriers; grading; paving; temporary restriping; erosion control work; overhead sign work; concrete and barrier demolition; roadway excavation; stormwater drainage system maintenance; electrical service work; temporary replacement of median electrical components; and minor construction activities.

All construction activities are subject to change without notice.

Visit our website at 101express.com for more information about the project. Follow us on Twitter @CaltransD4.

If you would like a copy of a prior construction update, please email 101express@dot.ca.gov.

2021-03-28-101-express-update

Construction Update – Week of March 28th

Detour Routes:

Sound Wall Update

If you would like a copy of a prior construction update, please email 101express@dot.ca.gov.

Statewide Campaigns

Statewide Campaigns

Statewide Campaigns

Statewide Campaigns