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101 Express Lanes Construction Update – Week of February 9th

Post Date:02/08/2020 3:48 PM

 101 Closure Announcement Header

Project construction from Whipple Avenue to I-380 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 occur between 2019 and 2022.

North of Whipple Avenue: This week, construction activities on U.S. 101 from Whipple Avenue (in Redwood City) to I-380 (in South San Francisco) will include installing erosion control protection, installing environmentally-sensitive area fencing, temporary freeway striping, and installing temporary construction and detour signs. This work will occur on the freeway lanes, shoulders, and freeway ramps. See below for more information about those activities.

Freeway Lane Closures: This week, nightly freeway lane closures will begin on northbound and southbound U.S. 101 from 10:00 PM – 5:30 AM, Sunday through Thursday night. Expect delays below 15 minutes from 10:00 PM – 6:00 AM. Up to 3 lanes may be closed each night.

Freeway Ramps: Temporary, nightly ramp closures will occur in/near Belmont, San Mateo, Burlingame, Millbrae, and San Bruno. Ramp closures could occur on both the northbound and southbound sides of the freeway. However, northbound ramps at consecutive interchanges or southbound ramps at consecutive interchanges will not be closed at the same time.

Ramp closures will:
• Be displayed on changeable message signs in the construction zone
• Take place at night
• Last three to eight hours
• Reopen by 6:00 AM daily
• Have detour signs posted

Short-Term nighttime ramp closures are possible this week at the following locations (listed from south to north). Check signs for exact closure times and locations.

• NB Ralston Off Ramp
• WB/EB Hillsdale On Ramp
• 92/101 Connector Ramp
• 3rd/4th Avenue On/Off Ramp
• SB Poplar On/Off Ramp
• Broadway On/Off Ramp
• SB Millbrae Avenue On/Off Ramp
• San Bruno On Ramp

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

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