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Lake or Streambed Alteration Agreement No. 1600-2010-0251-R1, McKenzie Bar (Middle Fork Eel River) Gravel Extraction Project

Awarded

State & Local

Contract Overview

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

AI Contract Overview

The project authorizes limited gravel extraction, water drafting, and a temporary stream crossing at McKenzie Bar on the Middle Fork of the Eel River in Mendocino County, California. Gravel extraction is restricted to a maximum of 20,000 cubic yards per year between July 15 and October 15, with annual volumes determined by replenishment levels approved by Mendocino County and the California Department of Fish and Wildlife. Extraction is prohibited in the upper portion of the bar upstream of Cable Creek to preserve natural morphology, must begin two feet above the pre-extraction water level with a smooth 2% slope to the bank, and equipment must operate at least ten feet from the water’s edge to protect wildlife. Operations are limited to a 10-year period within a 20-year window ending in 2035 and require annual agency approval based on channel conditions. Water may be drawn from the river for dust control at a daily maximum of 3,500 gallons with an instantaneous rate cap of 350 gallons per minute; intakes must comply with fish-screening standards. A temporary crossing at Cable Creek may be installed and must be reviewed and approved by relevant agencies, including its design, placement, and removal. After extraction, reclamation requires complete removal of stockpiles and debris, grading with native materials to restore the bar’s original contour, re-contouring to approved slopes, installation of stormwater controls, and removal of all temporary infrastructure. The project operates under a Conditional Use Permit and Reclamation Plan Renewal issued by Mendocino County in 2015, and is governed by a Lake or Streambed Alteration Agreement, with oversight maintained through joint agency review.

General Info

Limited gravel extraction, water drafting, and temporary stream crossing at McKenzie Bar, 20,000 cubic yards/year, 10-year operation until 2035.

Agency

California → Mendocino County

NAICS

212321 - Construction Sand and Gravel MiningView NAICS

Place of Performance

near 50510 Covelo Road, Dos Rios, CA

Set-Aside

NONE

Documents

(1)

Notice of Determination for McKenzie Bar Gravel Extraction Project EPIMS-MEN-66628-R1

PDF•notice-of-determination

AI Contract Breakdown

Uniform Contract Format

Timeline

PhaseAwarded

PostedJul 17

forecast

AwardedAug 31

Contract was awarded

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Organization & Contact Information

AgencyCalifornia → Mendocino County

Contacts2 people available

OfficeN/A

Organization / Agency

California → Mendocino County

Office AddressN/A

Contacts

Jonathan HollisEnvironmental Scientist

Dirk LarsonContact

Full Description

The project is limited to three encroachments: 1) commercial gravel extraction from the Middle Fork of the Eel River at the site known as McKenzie Bar (CA MINE ID 91-23-0033); 2) installation of a temporary crossing at Cable Creek; 3) water drafting from the Middle Fork Eel for the purposes of dust abatement. On December 17, 2015, the County of Mendocino issued a Resolution granting approval of Conditional Use Permit and Reclamation Plan Renewal UR_2014-0001 GARMAN FAMILY LAND COMPANY LLC. Consistent with the parameters set forth in the County permit, and subject to annual approval from the gravel-extraction review agencies, the Permittee proposes harvest of replenishment-based extraction volumes a maximum of 10 years over the 20-year period ending in 2035. Gravel volumes shall not exceed 20,000 cubic yards of gravel, rock, and sand in any given year. Gravel extraction shall be limited to the period between July 15 and October 15 in any given year. Operations shall generally employ approved skimming methods that minimize impacts to bar or channel morphology. Accordingly, no gravel shall be extracted from the upper portion of the bar, upstream of Cable Creek, to protect gravel bar shape and function. Gravel extraction shall begin two feet above the pre-extraction cross-section water level and maintain a smooth 2% upward slope to the bank. Equipment shall not be operated within 10 feet of the waters edge for wildlife and habitat protection. Total annual extraction volumes shall be replenishment-based and shall be determined on an annual basis based on channel morphology and gravel replenishment, subject to review and approval by Mendocino County and CDFW. No extraction shall occur in any given year unless sufficient replenishment is achieved. During operations, water may be drafted from the Middle Fork Eel River adjacent to the gravel bar for use as dust control only. Drafting will be limited to a maximum of 3,500 gallons/day and the maximum instantaneous diversion rate will not exceed 350 gallons per minute. Intake screens will meet CDFW/NMFS fish screen requirements. A temporary stream crossing may be necessary for access to the bar. The location, design, installation, and removal of crossings will be subject to review and approval by the gravel-extraction review agencies. Post-extraction reclamation activities will include removal of any remaining temporary gravel stockpiles, finished grading of the gravel bar utilizing native materials to fill in low areas and depressions, re-contouring of the gravel bar to meet agency-approved post extraction slopes and gravel bar configuration, removal of temporary crossings, installation of storm water control measures, and removal of all work materials and debris.