Road Stream Crossing Site BSAB_BS75

Big Sable River Watershed, Tributary of Big Sable River
Beyer Rd
Victory Twp, Mason County
Information collected by:
Site Location
GPS Coordinates: 44.06372 , -86.28907
T19N R17W Sec 1
Owned by Private
Fish Passability 0.9
Structure is NOT Perched
Total Erosion: 7.5476 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: Mixture
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 40 ft. , Width 2 ft. , Height 1.7 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 0.71 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0 ft./sec.
Structure Outlet
Water Depth: 0.29 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0 ft./sec.
*Water Velocities were measured at the Surface (with Meter)
Additional Comments
1) Upstream is a marsh 2) stagnant water at the inlet and outlet
Stream Information
Stream Flow: None
Upstream Pond: Length 66 ft. , Width 84 ft.
Riffle Information
Water Depth: 1.1 ft.
Bankfull Width: 17.6 ft.
Wetted Width: 13.2 ft.
Water Velocity: 0 ft./sec. (Measured with Meter)
Dominant Substrate: Sand
Road Information
Gravel County Road
Road Condition: Fair
Road Width at Culvert: 24 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 4.8 ft.
Slope: 1:1
Downstream
Fill Depth: 4.4 ft.
Slope: 1:1
Approaches
Left Approach
Length: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 3.7686 tons/year
Right Approach
Length: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 3.7686 tons/year
Erosion Information
Total Erosion at Crossing: 7.5476 tons/year
Extent of Erosion: Minor
Erosion is occurring and corrective actions can be installed to address the problem.
Notes: Minor embankment erosion due to road runoff
Location of Erosion
Erosion Dimensions
Eroded Material
Material Eroded
Total Erosion
facing downstream
Length
Width
Depth
Reaching Stream?
(tons/year)
Right Upstream Embankment
9 ft.
2.5 ft.
1.2 ft.
yes
Sandy Loam
0.0104
Summary Information
Fish Passability 0.9