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Larkspur Marina Bulkhead Replacement Project (Notification of Lake or Streambed Alteration, No. EPIMS-MAN-56958-R3 Amendment No.1).

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State & Local

Contract Overview

Solicitation details, issuing organization, response deadlines, documents, and interested companies for this government contract opportunity.

AI Contract Overview

The Larkspur Marina Bulkhead Replacement Project involves the replacement of an existing bulkhead wall along the shoreline of Larkspur Lagoon in Corte Madera, California, using a fiber-reinforced vinyl system installed via vibratory method with a small excavator, without any pile driving. Access to the construction site is facilitated by a temporary 2.5-foot by 15-foot dock secured with eight helical piles, and work is conducted from three floating platforms—two measuring 40 by 60 feet and one 60 by 30 feet. The project includes removing the existing concrete cap, filling the space between the old and new bulkheads with compacted fill, and installing a new cap. Turbidity controls such as silt curtains are required around all active work areas to limit sediment dispersion into the lake, and construction activities must cease by November 30 to protect the larval habitat of the Longfin smelt. The lake outlet remains functional through a one-way duckbill valve to maintain flood control and water quality, while a pump system connected to Corte Madera Creek manages lake levels seasonally. An existing easement provides access to staging areas and floating platforms. The project results in 162,141 square feet of temporary impacts from floating platforms, the access dock, and silt curtains—all to be removed upon completion—and 8,538 square feet of permanent impacts from the new bulkhead and fill material. This amendment to EPIMS-MAN-56958-R3 is administered by the California Department of Fish and Wildlife under Section 1602 of the Fish and Game Code and qualifies for a Class 2 categorical exemption under CEQA as a replacement of an existing structure with comparable function. No federal acquisition regulations apply; the process is a state environmental notification and amendment, with project oversight handled by the agency’s Environmental Scientist Jordan Beaton and project representative Lewis Tanenbaum. There are no contractual pricing details, delivery schedules, or formal evaluation criteria, as the activity is regulatory rather than competitive procurement.

General Info

Replace bulkhead with fiber-reinforced vinyl, no pile driving, seasonal work stoppage, turbidity controls, temporary and permanent shoreline impacts.

Agency

California → Fish and Wildlife, Region 3 - Bay Delta, Fairfield

NAICS

237990 - Other Heavy and Civil Engineering ConstructionView NAICS

Place of Performance

Corte Madera, CA

Set-Aside

NONE

Documents

(1)

EPIMS-MAN-56958-R3 Amendment 1 Notice of Exemption

PDF•notice-of-exemption

AI Contract Breakdown

Uniform Contract Format

Timeline

PostedNov 17

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Organization & Contact Information

AgencyCalifornia → Fish and Wildlife, Region 3 - Bay Delta, Fairfield

Contacts2 people available

OfficeN/A

Organization / Agency

California → Fish and Wildlife, Region 3 - Bay Delta, Fairfield

Office AddressN/A

Contacts

Jordan BeatonEnvironmental Scientist

contact@example.gov

+1 (555) 000-0000

Lewis TanenbaumPerson or Public Agency Carrying Out Project

contact@example.gov

+1 (555) 000-0000

Full Description

The California Department of Fish and Wildlife has amended Lake and Streambed Alteration Agreement EPIMS Notification No. EPIMS-MAN-56958-R3 (Agreement), pursuant to Section 1602 of the Fish and Game Code, to Larkspur Marina Property Owners Association. The amendment allows an increase of temporary impacts associated with additional floating platforms and a temporary access dock, and changes to four Agreement measures. The Project is limited to replacing the existing bulkhead wall by constructing a new bulkhead wall built on the waterside of the existing bulkhead along the Lake shoreline. The new bulkhead will be constructed with fiber reinforced vinyl sheets and placed via vibratory method with a small excavator, no pile driving will take place. Access for equipment and materials will take place from a temporary dock approximately 2.5 feet long by 15 feet wide, which will be secured with eight seven-inch diameter shaft helical piles, which will be installed and removed by screwing into and out of the Lake bed using a screw-in attachment to an excavator. Construction of the new bulkhead will be conducted from three floating platforms, two approximately 40 feet wide by 60 feet long and one approximately 60 feet wide by 30 feet long. The concrete cap of the existing bulkhead will be removed as necessary. The space between the existing bulkhead and the new bulkhead will be filled with compacted fill material and a new cap will be installed. Turbidity controls (e.g., silt curtains or similar) will be used around the active work areas, which will allow suspended solids to drop out and minimize turbidity in the Lake. The Lake inlets will be closed off by November 30 which is the end of the work period for larval Longfin smelt (Spirinchus thaleichthys) for the duration of construction activities. The Lake outlet, which is controlled by a one-way duckbill valve, will remain operational and used to lower lake levels as necessary to maintain flood control operations and water quality. A pump system connecting to Corte Madera Creek side channel and the Lake will be used to raise the level of the Lake as necessary during wet and dry seasons to maintain water quality, flood control, and integrity of the existing bulkhead. An existing easement over the outfall pipe in the northeast section of the Lake will be used for access to the floating platforms and staging materials and equipment. The Project will result in 162,141 square feet (3.72 acres) of temporary impacts associated with shade and piles caused by the temporary dock for project access, three floating platforms traversing through the Lake, and the use of silt curtains, which shall all be removed immediately after Project completion. The Project will result in 8,538 square feet (0.196 acres) of permanent impacts associated with bulkhead construction and fill.