Flood Zone Construction Details

May 2023 Project Update:

Project construction complete
Permit closeout ongoing
FEMA documentation being developed for submittal

IMPORTANT: Bay Trail will remain close at Monte Diablo at the request of the County of San Mateo Park’s Department. There are currently downed trees within Coyote Point that pose a safety concern for trail users. Estimated to be removed by June 1^st 2023.

November 2022 Project Update: The Bay Trail is scheduled to fully reopen early 2023. A northern portion of the trail has reopened, however a detour is still in place to access the trail south of Coyote Point Park

In September 2020, construction started on the North Shoreview Flood Improvement Project. Some of the work includes improvements to the Coyote Point and Poplar Avenue Pump Stations, and will prompt the temporary detour of the Bay Trail through the North Shoreview Neighborhood.

The full of scope of work includes raising a 1,300-foot levee segment located between the San Mateo and Burlingame border off Airport Boulevard and adjacent to the Peninsula Humane Society. The work also includes updating electrical controls, correcting structural deficiencies, installing backup power generation, increasing pumping capacity at the Coyote Point and Poplar Avenue Pump Stations, and installing trash capture devices.

Construction will include sheet piling work that could be disruptive to residents closest to the Poplar Avenue Pump Station. We will make every effort to minimize the construction noise.

On Monday, May 4, 2020, the San Mateo City Council approved an agreement for $24 million for construction services with Anderson Pacific Engineering Construction.

Project Schedule:

January – April 2023

Open Bay Trail to all and demobilize detour by early 2023
Reopening of the two close sections of the Bay Trail will occur in two separate phases
November 2022 Bay Trail Detour Notice & Map
Post construction site restorations, bio retention basins, and all necessary functional features
Demobilize construction site

July – December 2022

Continue to build new pump stations, electrical buildings, and all other necessary structural features
Commission new pump stations

January – June 2022

Install pump station equipment
Floodwall Maintenance Repair
- Notice
- Notification Area Map

July – December 2021

Continue excavation for new pump stations
Underground concrete structures and large retaining walls expected to be in place by the end of this summer
By fall, gradually transition to the above ground structures, and later to electrical and mechanical installations

January – June 2021

Set new transformer and switch service for existing pump stations
Continue levee earthwork including mass grading and excavations

September – December 2020

Groundbreaking and site preparation
Close access to Bay Trail near project sites, establish and place signage for residential detour
Start Coyote Point Levee Earthwork

Construction schedules are subject to change without notice.

Construction Hours:

Work Hours: 8 a.m. to 5 p.m., Monday to Friday
Work on weekends and at night, if needed.

Project Contacts:

Email Public Works / (650) 522-7300

Notifications:

August 2020 Construction Notice -- Outreach Area
May 2020 Project Update
2019 Project Update
2018 Project Update

November 2020 - Completed sheet pile shoring system installed at Coyote Point Pump Station including within the channel.
May 2021 - Coyote Point Pump Station wall bracing.
September 2021 - The completed pump station wet well at Coyote Point Pump Station is shown, as well as the electrical control building being constructed.
October 2021 - The large axial flow pump to be installed at Coyote Point Pump Station. A total of 3 pumps will be installed.
August 2021 - Completed concrete weir wall adjacent to the Trash Collection Device at the Coyote Point Pump Station creek inlet. Storm water overflow at peak rain will go over the weir and into the overflow retention area.
February 2021 - New concrete outfall structure at Poplar Avenue Pump Station completed. Section(s) of the levee have been excavated to allow work to proceed adjacent to the outfall.
September 2020 - The temporary Bay Trail route was constructed off Airport Blvd to facilitate the closure of the levee at Coyote Point Pump Station. This will remain in place until the new levee is constructed and paved.
May 2021 - The Trash Capture Device at Coyote Point Pump Station is completed and the interior stainless-steel elements installed. This area will have water flowing through it as the contractor builds the bypass weir within the adjacent channel.
March 2021 - Concrete slab installed at Coyote Point Pump Station wet well. Approximately 500 yard of concrete was poured in stages to compete the 2-foot-thick foundation slab and other areas.
January 2022 - Poplar Avenue Pump Station masonry block electrical control building being completed.
June 2022 - Masonry ‘standby generator’ building being installed at Poplar Avenue Pump Station.
May 2022 - New 750 hP standby diesel generator being installed at Coyote Point Pump Station.
May 2021 – The walls, floor and interior divider walls have been finished. The new steel pump ‘cans’ have been installed and concrete will be poured to secure these pump cans.
September 2021 - The wet well concrete slab at Poplar Avenue Pump Station is completed and partial walls finished. At the background is the discharge outfall going to the Bay past the levee.
November 2021 - Wet well concrete deck slab being poured at Poplar Avenue Pump Station.
February 2022 - Micropiles rebar being installed at Coyote Point Pump Station standby 750 hP diesel generator room foundation.
August 2021 - The wet well at Poplar Avenue Pump Station is shored and steel walers installed prior to the installation of rebar for the floor slabs.
October 2020 - Sheet pile installation being performed at Coyote Point Pump Station levee during low tide. This will allow for the construction of the new outfall structure.
January 2021 - New concrete outfall structure at Coyote Point Pump Station completed.
January 2022 - Low Flow Pump operating at Coyote Point Pump Station discharging water during high tide.