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CROSSING CL123

Clear and Foster Creek 2002 Fish Passage Assessment

CL123in

Watershed: Clear Creek

Stream: T Clear Ck.

Road: Springwater

Latitude: 45.3714578138

Longitude: -122.4675858294

Elevation: 291 ft

Ownership: Private

Fish Presence: fish present

Survey date: 07/10/2002

Crossing Description

Type: round culvert

Condition: +20.0 years left

Diameter: 36.0 in

Length: 38.5 ft

Crossing slope: 2.8 %

Avg. embedded: no material

Inlet design: non-mitered

Backwater drop: + 0.1 ft

Inlet elev: -0.1 ft

Avg. fill height: 4.9 ft

Road width: 14.0 ft

Road armor: cobble / gravel

Habitat Description

Channel habitat type: moderate gradient, confined
Catchment acreage: 733
Avg. channel slope: 5.4%
Avg. bankfull width: 7.7 ft

Dist from Clackamas R.: 2.8 miles

Upstream fish-bearing length: 2.3 miles

Dominant channel substrate: cobble / gravel

Comments: 2 Culverts. Fish in downstream pool. Single channel: island and side channel are 3-4x width. Sediment fill behind culvert. Solution – Backwatering at higher flows negates some of the slope effects. Round culvert, embedded, 40 ft long.

Prioritization and Cost Information

Fish passage: partial

Habitat priority: 5

Habitat and cost priority: 6

Fix solution: culvert w/ simulated streambed

Span: 8.0 ft

Material: metal

Design $3,500

Materials $6,720

Install $4,800

Contingencies $4,506

Total $19,526.00