Article Source: SM 101 Express Lane
Project construction from Whipple Avenue (in Redwood City) to I-380 (in South San Francisco) in San Mateo County is underway! 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 2022.
***Note: This update includes important information about freeway lane closures beginning at 9:00 PM and sound wall demolition beginning the week of March 29th. ***
Construction Update – Week of March 29th
North of Whipple Avenue: Construction activities on U.S. 101 from Whipple Avenue (in Redwood City) to I-380 (in South San Francisco) will include; continued work on the sound wall from Monte Diablo Ave to Dore Ave, removing vegetation, installing temporary lighting, installing concrete barriers next to the travel lanes, installing traffic signals on ramps, installing construction/detour signs, installing temporary traffic detectors, preparing underground utilities for sewer work, and other related construction activities. Expect most of the work to occur on the freeway lanes, shoulders, and ramps, while the sound wall work will occur on city streets adjacent to U.S. 101. More information is provided below.
Upcoming Sound Wall Demolition and Temporary Parking Changes
Construction timing: Demolition of the sound wall on South Bayshore Blvd adjacent to U.S. 101 begins the week of March 29th, 2020 (delayed from March 22nd, 2020). The work will involve removal of the wall from Newbridge Ave. to just past Dakota Ave. This section of the sound wall will be relocated and rebuilt by July 2020.
Parking information: On-street parking along South Bayshore Blvd in the construction area will be unavailable and South Bayshore Blvd will experience intermittent one-way traffic for the duration of sound wall construction. Please visit 101express.com for more information.
Freeway Lane Closures: Nightly freeway lane closures will begin on northbound and southbound U.S. 101 from 9:00 PM to 5:30 AM, Sunday through Thursday night. Due to very low traffic volumes, project related traffic delays are anticipated to be minimal.
Freeway Ramp Closures: Temporary, nightly ramp closures will occur in/near Redwood City, San Carlos, Belmont, San Mateo, Foster City, Burlingame, Millbrae, San Bruno, and South San Francisco. Ramp closures could occur on 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.
Short-Term nighttime ramp closures are possible (Sunday through Thursday night) at the following locations (listed from south to north). Check signs for exact closure times and locations.
South of Whipple Ave: Construction activities on U.S. 101 from San Antonio Road (in Palo Alto) to Whipple Avenue (in Redwood City) will include minor construction activities related to existing electrical facilities. Expect work on the freeway shoulders and ramps. Delays are not anticipated for this work.
Upcoming Construction: Future construction activities for the next few weeks will include; removing vegetation, installing concrete barriers next to the travel lanes, installing traffic signals on ramps, installing temporary traffic detectors, installing construction/detour signs, installing temporary lighting, demolishing portions of concrete barrier, preparing underground utilities for sewer work, and other related construction activities.
All construction activities are subject to change without notice.
For questions during construction, contact the Caltrans Public Information Officer:
Alejandro Lopez at (510) 286-4948 or email@example.com.