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CROSSING CL051

Clear and Foster Creek 2002 Fish Passage Assessment

Watershed: Clear Creek

Stream: T Clear Ck.

Road: private

Latitude: 45.2457171909

Longitude: -122.4061216137

Elevation: 1098 ft

Ownership: Private

Fish Presence: fish present

Survey date: 06/20/2002

Crossing Description

Type: round culvert

Condition: +5.0 years left

Diameter: 30.0 in

Length: 42.6 ft

Crossing slope: 1.9%

Avg. embedded: no

Inlet design: non-mitered

Backwater drop: + 5.7 ft

Inlet elev: – 0.4 ft

Avg. fill height: 4.4 ft

Road width: 10.0 ft

Road armor: fine

Habitat Description

Channel habitat type: Moderate gradient, moderately confined

Catchment acreage: 329.0

Avg. channel slope: 2.5%

Avg. bankfull width: 5.5 ft

Distance from Clackamas R.: 18.8 miles

Upstream fish-bearing length: 2999 ft

Dominant channel substrate: cobble – gravel – fine

Comments: Not fish passable. Solution – Combination of slope, drop and length creates fish passage problems. Round culvert sunken into streambed, 40 ft long. Control elevation with culvert embedding.

Prioritization and Cost Information

Fish passage: no

Habitat priority: 57

Habitat and cost priority: 33

Fix solution: culvert w/ simulated streambed

Span: 6.0 ft

Material: metal

Design $2,200

Materials $3,300

Install $5,050

Contingencies $3,165

Total $13,715.00