Crossing CL122 / CV3289

Clear and Foster Creek 2002 Fish Passage Assessment


Watershed: Clear Creek

Stream: T Clear Ck.

Road: Babler

Latitude: 45.3694604493

Longitude: -122.4542685288

Elevation: 368 ft

Ownership: County

Fish Presence: fish present

Survey date: 07/16/2002

Crossing Description

Type: pipe arch

Condition: 10.0 years left

Diameter: 48.0 x 60.0 in

Length: 37.0 ft

Crossing slope: 0.9 %

Backwater drop: – 1.2 ft

Inlet elev: +3.7 ft

Avg. fill height: 1.1 ft

Habitat Description

Channel habitat type: Low gradient, small floodplain

Catchment acreage: 429.0

Avg. channel slope: not available

Avg. bankfull width: 5.6 ft

Distance from Clackamas R.: 3.6 miles

Upstream fish-bearing length: 1.6 miles

Dominant channel substrate: none recorded

Comments: Inlet too blocked by wall of blackberry to get photo. Pipe is in good shape, very shallow. Couldn’t get to inlet portion of stream because completely covered with blackberries. Solution – Because of the high drop and the combination of moderate slope and length probably a complete blockage. Round culvert, embedded, 40 ft long, placed at stream grade. Require a profile to get placement info. County estimate based on open bottom design.

Prioritization and Cost Information

Fish passage: no

Habitat priority: 13

Habitat and cost priority: 19

Fix solution: culvert w/ simulated streambed

Span: 6.0 ft

Material: metal

Design NA

Materials NA

Install NA

Contingencies NA

Total $85,500.00