Road Stream Crossing Site LIN_MLCD009

Lincoln River Watershed, South Branch of Lincoln River
Sugar Grove Rd
Sherman Twp, Mason County
Information collected by:
Mason-Lake Conservation District
Site Location
GPS Coordinates: 44.00496 , -86.21845
T19N R16W Sec 34
Owned by Private
Fish Passability 0.9
Total Erosion: 0.1642 tons/year
Severity: Minor
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: Mitered
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Mixture
General Conditions: Fair
Structure Interior: corrugated
Dimensions of Structure: Length 59 ft. , Width 6 ft. , Height 6 ft.
Structure Inlet
Water Depth: 0.8 ft.
Embedded Depth of Structure: 0.2 ft.
Water Velocity*: 1.2 ft./sec.
Structure Outlet
Water Depth: 0.5 ft.
Embedded Depth of Structure: 0.5 ft.
Water Velocity*: 1.2 ft./sec.
*Water Velocities were measured 0.4 ft. below Surface (with Meter)
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 10 ft. , Width 15 ft. , Depth 1 ft.
Riffle Information
Water Depth: 1 ft.
Bankfull Width: 9 ft.
Wetted Width: 6 ft.
Water Velocity: 0.8 ft./sec. (Measured with Meter)
Dominant Substrate: Sand
Road Information
Paved County Road
Road Condition: Good
Road Width at Culvert: 24 ft.
Location of Low Point: Other
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 2.5 ft.
Slope: 1:2
Downstream
Fill Depth: 2.5 ft.
Slope: 1:2
Approaches
Left Approach
Length: 400 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.48
Erosion: 0.1523 tons/year
Right Approach
Length: 300 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0119 tons/year
Erosion Information
Total Erosion at Crossing: 0.1642 tons/year
Summary Information
Fish Passability 0.9