Clear and Foster Creek 2002 Fish Passage Assessment


Watershed: Clear Creek

Stream: T Clear Ck.

Road: Mattoon

Latitude: 45.3372983423

Longitude: -122.4285709944

Elevation: 315 ft

Ownership: County

Fish Presence: fish present

Survey date: 06/26/2002

Crossing Description

Type: round culvert

Condition: 7.0 years left

Diameter: 28.0 in

Length: 30.0 ft

Crossing slope: 3.1 %

Backwater drop: + 1.5 ft

Inlet elev: -0.2 ft

Avg. fill height: 4.1 ft

Habitat Description

Channel habitat type: Moderate gradient, moderately confined

Catchment acreage: 331.0

Avg. channel slope: 4.5%

Avg. bankfull width: 8.0 ft

Distance from Clackamas R.: 8.5 miles

Upstream fish-bearing length: 3075 ft

Dominant channel substrate: none recorded

Comments: 800 ft blockage pond downstream. Inlet looks good. Solution – Some embedding in culvert, adult passage likely. Pipe arch, embedded, 30 ft long. County estimate based on bridge design.

Prioritization and Cost Information

Fish passage: partial

Habitat priority: 54

Habitat and cost priority: 72

Fix solution: culvert w/ simulated streambed

Span: 8.0 ft

Material: metal

Design NA

Materials NA

Install NA

Contingencies NA

Total $203,000.00