Road Stream Crossing Site ST134

Sturgeon River Watershed, West Branch Sturgeon River
Lewis Rd
Corwith Twp, Otsego County
Information collected by:
Tip of the Mitt Watershed Council
Site Location
GPS Coordinates: 45.164133 , -84.714117
T32N R03W Sec 18
Owned by Private
Fish Passability 1
Structure is NOT Perched
Total Erosion: 3.4766 tons/year
Severity: Severe
Year Inventoried: 2015
Site ID
Inlet
Outlet
Downstream Conditions
Upstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 1
Structure Shape: Open Bottom Arch
Inlet Type: Wingwall 10-30 Degree
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 55.2 ft. , Width 14.2 ft. , Height 4.4 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 1.6 ft.
Embedded Depth of Structure: 0.3 ft.
Water Velocity*: 0.8 ft./sec.
Structure Outlet
Water Depth: 1.5 ft.
Embedded Depth of Structure: 0.3 ft.
Water Velocity*: 0.8 ft./sec.
*Water Velocities were measured at the Surface (with Float Test)
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 0 ft. , Width 0 ft. , Depth 0 ft.
Upstream Pond: Length 0 ft. , Width 0 ft. , Depth 0 ft.
Riffle Information
Water Depth: 1.4 ft.
Bankfull Width: 23.7 ft.
Wetted Width: 23.2 ft.
Water Velocity: 1.3 ft./sec. (Measured with Float Test)
Dominant Substrate: Sand
Road Information
Gravel State Road
Road Condition: Good
Road Width at Culvert: 21 ft.
Location of Low Point: Other
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 0.4 ft.
Slope: More than 1:2
Downstream
Fill Depth: 0.4 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 0 ft.
Slope: Less Than 1%
Vegetation: Partial
LS Factor: 0.05
Erosion: 0 tons/year
Right Approach
Length: 801 ft.
Slope: 1% to 5%
Vegetation: Partial
LS Factor: 0.75
Erosion: 3.4766 tons/year
Erosion Information
Total Erosion at Crossing: 3.4766 tons/year
Summary Information
Fish Passability 1