Millbrae 101 Express Lanes Construction Update Week Of August 24

Press release from the City of Millbrae:

August 23, 2020

Caltrans is constructing express lanes on U.S. 101 from the San Mateo County/Santa Clara County Line to I-380 in South San Francisco. Construction is expected to be completed in mid-2022 with the full lanes opening to traffic late-2022.

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) will include overhead sign work, as well as grading and paving activities. This will include work on the freeway median, shoulders and ramps, but no delays are anticipated. Short-term nighttime ramp closures are possible this week at locations south of Whipple Avenue. Planned ramp closure locations are provided below in the “Freeway Ramp Closures” section.

North of Whipple Avenue: Construction activities on U.S. 101 from Whipple Avenue to I-380 (in South San Francisco) will include: continued work on the removed sound walls 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), all within the City of San Mateo. Additional work will include installing storm drainage systems, permanent concrete barriers, and sign foundations; paving; electrical service work; roadway excavation; 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.

Nighttime Work near Removed Sound Wall Along Bayshore Boulevard: Continuing the week of August 23rd, construction crews will be working on U.S. 101 near the removed sound wall along Bayshore Boulevard, from Dore Avenue to East Poplar Avenue, in the City of San Mateo. Activities will include paving and working to facilitate electrical connections. Nearby residents and travelers may see construction crews during the night and early morning (from 8:00 PM to 5:00 AM). During this work, nearby residents and travelers may hear noise and vibration from drilling and paving as well as other common construction-related sounds such as back-up alarms. This work is anticipated to conclude this week.

Sound Wall Work: Construction crews working on the sound walls will continue to implement one-way traffic control periodically on 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. One-way traffic control may occur from 8:00 AM to 5:00 PM, Monday through Friday. During this time, northbound traffic will remain on Bayshore Boulevard while southbound traffic will be detoured. Watch for detour signs. After 5:00 PM, the road will be restored to two-way traffic.

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 traffic delays and make adjustments, as necessary.

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

Nighttime ramp closures: Short-term nighttime ramp closures are possible the week of August 23rd (between Sunday night and Friday morning) in/near the cities of East Palo Alto, Menlo Park, Redwood City, San Carlos, Belmont, San Mateo, Foster City, Burlingame, Millbrae, San Bruno, and South San Francisco at the following locations (listed from south to north). Signs near the ramps will have exact closure times and locations.

South of Whipple Avenue:

• Northbound Willow Road On-Ramp
• Westbound Marsh Road On-Ramp (Closures possible starting at 6:00 PM at this location)
• Northbound U.S. 101, Northbound/Southbound Route 84 Connector Ramp
• Northbound Route 84, Northbound U.S. 101 Connector Ramp
• North of Whipple Avenue:
• Eastbound/Westbound Whipple Avenue On/Off-Ramp (Closures possible starting at 6:00 PM at this location)
• Eastbound/Westbound Brittan Avenue On/Off-Ramp
• Eastbound/Westbound Holly Street, Southbound/Northbound U.S. 101 On/Off Ramp
• Northbound Holly Street Off-Ramp
• Southbound Harbor Boulevard On-Ramp
• Southbound Ralston Avenue On-Ramp
• Northbound Marine Parkway On/Off-Ramp
• Eastbound/Westbound East Hillsdale Off-Ramp
• Northbound/Southbound U.S. 101, Eastbound/Westbound Route 92/Fashion Island Boulevard Connector Ramp
• Northbound Kehoe Avenue Off-Ramp
• Eastbound/Westbound 3rd/4th Avenue, Northbound/Southbound U.S. 101 On/Off-Ramp
• Eastbound/Westbound Broadway & Old Bayshore, Southbound U.S. 101 On-Ramp
• Broadway & Old Bayshore, Northbound U.S. 101 On-Ramp
• Eastbound/Westbound Millbrae Avenue, Northbound U.S. 101 On-Ramp
• Westbound Route 380/San Bruno Avenue Collector Ramp from S.F.O
• Eastbound Route 380, Southbound U.S. 101 Connector 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 city streets in the cities of Redwood City and South San Francisco. 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. Work may occur near the following intersections and locations:

• Veterans Boulevard and Whipple Avenue in the City of Redwood City
• South Airport Boulevard and Wondercolor Lane in the City of South San Francisco
• Terminal Court and Produce Avenue in the City of South San Francisco

Upcoming Construction (South of Whipple Avenue): Construction activities in the coming weeks on U.S. 101 from San Antonio Road (in Palo Alto) to Whipple Avenue (in Redwood City) will include: grading and paving, overhead sign work, and drainage structure excavation and installation. This will take place on the freeway median and shoulders.

Upcoming Construction (North of Whipple Avenue): Construction activities in the coming weeks on U.S. 101 from Whipple Avenue (in Redwood City) to I-380 (in South San Francisco) will include: continued work on removed sound walls in the City of San Mateo; installing sign foundations, permanent concrete barriers and storm drainage systems; removing temporary concrete barriers; paving; electrical service work; roadway excavation; and other related construction activities.

Visit http://101express.com/ to learn more.

This press release was produced by the City of Millbrae. The views expressed here are the author’s own.