Crossing CL108

Clear and Foster Creek 2002 Fish Passage Assessment


Watershed: Clear Creek

Stream: T Clear Ck.

Road: Private

Latitude: 45.3366970168

Longitude: -122.4307468975

Elevation: 299 ft

Ownership: Private

Fish Presence: fish present

Survey date: 07/12/2002


Crossing Description

Type: round culvert

Condition: +5.0 years left

Diameter: 36.0 in

Length: 23.0 ft

Crossing slope: 2.2 %

Avg. embedded: no material

Inlet design: non-mitered

Backwater drop: + 0.8 ft

Inlet elev: +0.0 ft

Avg. fill height: 4.2 ft

Road width: 14.0 ft

Road armor: gravel / fine

Habitat Description

Channel habitat type: moderate gradient, moderately confined

Catchment acreage: 343

Avg. channel slope: 1.4%

Avg. bankfull width: 8.9 ft

Dist from Clackamas R.: 8.4 miles

Upstream fish-bearing length: 3676.7 ft

Dominant channel substrate: gravel / fine

Comments: Fish in pool at outlet. Pond influence fish upstream of culvert. Channel influenced by ditching. Benchmark is not flagged w/ high flagging. Location is below the large Douglas-fir. Solution – Pond dam downstream probably blocks fish passage. Pipe arch, 25 ft long, embedded.

Prioritization and Cost Information

Fish passage: partial

Habitat priority: 39

Habitat and cost priority: 16

Fix solution: culvert w/ simulated streambed

Span: 9.0 ft

Material: metal

Design $3,500

Materials $4,395

Install $4,235

Contingencies $3,639

Total $15,769.00