Road Stream Crossing Site BSAB_BS09

Big Sable River Watershed, Tributary of Twin Creek
Hamilton Rd
Sauble Twp, Lake County
Information collected by:
Site Location
GPS Coordinates: 44.01306 , -86.00046
T19N R14W Sec 28
Owned by Private
Federal
Fish Passability 0
Structure is NOT Perched
Total Erosion: 0.5124 tons/year
Severity: Severe
Year Inventoried: 2011
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: Ellipse
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Fair
Structure Interior: corrugated
Dimensions of Structure: Length 120 ft. , Width 2 ft. , Height 1.5 ft.
Percentage Plugged: Inlet: 26% to 50%
Structure is NOT Perched
Structure Inlet
Water Depth: 0.2 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 3.1 ft./sec.
Structure Outlet
Water Depth: 0.35 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1 ft./sec.
*Water Velocities were measured 0.12 ft. below Surface (with Meter)
Stream Information
Stream Flow: Less than Bankfull
Riffle Information
Water Depth: 0.24 ft.
Bankfull Width: 5.9 ft.
Wetted Width: 4.4 ft.
Water Velocity: 2.3 ft./sec. (Measured with Meter)
Dominant Substrate: Gravel
Road Information
Paved County Road
Road Condition: Good
Road Width at Culvert: 26 ft.
Location of Low Point: Other
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 10 ft.
Slope: 1:1
Downstream
Fill Depth: 9.5 ft.
Slope: 1:1
Approaches
Left Approach
Length: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 0.4899 tons/year
Right Approach
Length: 522 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0224 tons/year
Erosion Information
Total Erosion at Crossing: 0.5124 tons/year
Summary Information
Fish Passability 0
These non-native species were observerd at this site: Knapweed