Road Stream Crossing Site LIN_MLCD027

Lincoln River Watershed, South Branch of Lincoln River
Dewey Rd
Sherman Twp, Mason County
Information collected by:
Mason-Lake Conservation District
Site Location
GPS Coordinates: 44.01946 , -86.19959
T19N R16W Sec 23
Owned by Private
Fish Passability 0.9
Total Erosion: 2.1377 tons/year
Severity: Moderate
Year Inventoried: 2019
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 1
Structure Shape: Round
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Fair
Structure Interior: corrugated
Dimensions of Structure: Length 108 ft. , Width 4 ft. , Height 4 ft.
Structure Inlet
Water Depth: 2.1 ft.
Embedded Depth of Structure: 0.3 ft.
Water Velocity*: 0.2 ft./sec.
Structure Outlet
Water Depth: 1.7 ft.
Embedded Depth of Structure: 0.5 ft.
Water Velocity*: 0 ft./sec.
*Water Velocities were measured 1 ft. below Surface (with Meter)
Stream Information
Stream Flow: Bankfull
Riffle Information
Water Depth: 1.2 ft.
Bankfull Width: 12 ft.
Wetted Width: 12 ft.
Water Velocity: 0.4 ft./sec. (Measured with Meter)
Dominant Substrate: Silt
Road Information
Gravel County Road
Road Condition: Fair
Road Width at Culvert: 20 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 5 ft.
Slope: 1:2
Downstream
Fill Depth: 5.5 ft.
Slope: 1:2
Approaches
Left Approach
Length: 500 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.5
Erosion: 1.3774 tons/year
Right Approach
Length: 300 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.46
Erosion: 0.7603 tons/year
Erosion Information
Total Erosion at Crossing: 2.1377 tons/year
Summary Information
Fish Passability 0.9