Coleman Bridge and Stream Crossing Project. Lake or Streambed Alteration Agreement No. EPIMSMEN-16853-R1C

Coleman Bridge and Stream Crossing Project. Lake or Streambed Alteration Agreement No. EPIMSMEN-16853-R1C

The California Department of Fish and Wildlife has executed Lake and Streambed Alteration Agreement number EPIMS-MEN-16853-R1C, pursuant to Section 1602 of the Fish and Game Code to John Coleman. The project is limited to two encroachments. One proposed encroachment is to upgrade a failing and undersized stream crossing. Work for this encroachment will include excavation, removal of the failing crossing, replacement with a new properly sized crossing, backfilling and compaction of fill, and rock armoring as necessary to minimize erosion. The second encroachment is to perform improvements on an existing bridge and to improve fish passage with the installation of grade control or similar structures within the channel and in the vicinity of the crossing. The existing concrete box culvert functions as a bridge and was built on top of a now dilapidated wooden structure beneath the bridge. Work for this encroachment will include removal of the wooden structure beneath the bridge by cutting it into smaller pieces with power tools. The bridge and stream bed will temporarily be covered with plastic sheeting to catch sawdust and debris. Work for this encroachment will also include the design and installation of grade control or similar structures that eliminate water depth and velocity barriers for all life stages of anadromous fish for high and low design fish passage flows through the crossing. Final design plans for grade control or similar structures shall be submitted to CDFW for review and acceptance prior to construction. Project activities at all stream crossings shall require pre-construction surveys by a Designated Biologist only if surface water is present one week before construction or becomes present during construction.

Redwood Valley

Mendocino

Northern California

Mendocino