Road Stream Crossing Site BSAB_BS39
Big Sable River Watershed, Big Sable River
Bennett Rd
Meade Twp,
Mason County
Information collected by:
Site Location
GPS Coordinates: 44.11241
, -86.13026
T20N
R15W
Sec 20
Owned by Private
Federal
Federal
Structure is NOT Perched
Total Erosion: 0 tons/year
Severity: Minor
Year Inventoried: 2011
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: Other
Structure Shape: Open Bottom Square/Rectangle
Inlet Type: Wingwall 30-70 Degree
Outlet Type: At Stream Grade
Structure Material: Concrete
Structure Substrate: Sand
General Conditions: Fair
Structure Interior: smooth
Dimensions of Structure: Length 25 ft.
, Width 35 ft.
, Height 7 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 1.96 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.7 ft./sec.
Structure Outlet
Water Depth: 1.65 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.8 ft./sec.
*Water Velocities were measured 0.99 ft. below Surface
(with Meter)
Additional Comments
The bridge platform has been removed and the road is closed but the stream still passes through concrete abutment walls.
Stream Information
Stream Flow: Less than Bankfull
Riffle Information
Water Depth: 1.63 ft.
Bankfull Width: 61.9 ft.
Wetted Width: 51.4 ft.
Water Velocity: 1.8 ft./sec.
(Measured with Meter)
Dominant Substrate: Sand
Road Information
Native Surface
County Road
Road Condition: Good
Road Width at Culvert: 0 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Fill Depth: 0 ft.
Slope: Vertical
Fill Depth: 0 ft.
Slope: Vertical
Approaches
Left Approach
Length: 50 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0 tons/year
Right Approach
Length: 50 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0 tons/year
Erosion Information
Total Erosion at Crossing: 0 tons/year
Extent of Erosion: Moderate
Summary Information
Erosion is an area of concern for this site.
These non-native species were observerd at this site: Knapweed