Road Stream Crossing Site BEAR_BC060

Bear Creek Watershed, Little Beaver Creek
McClellan Rd
Maple Grove Twp, Manistee County
Information collected by:
Site Location
GPS Coordinates: 44.3544 , -86.05548
T23N R14W Sec 31
Owned by Private
Structure is NOT Perched
Total Erosion: 0.0582 tons/year
Severity: Minor
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: Good
Structure Interior: corrugated
Dimensions of Structure: Length 70 ft. , Width 8.5 ft. , Height 6 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 0.99 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.6 ft./sec.
Structure Outlet
Water Depth: 0.69 ft.
Water Velocity*: 1.2 ft./sec.
*Water Velocities were measured at the Surface (with Meter)
Stream Information
Stream Flow: Less than Bankfull
Riffle Information
Water Depth: 0.53 ft.
Bankfull Width: 13 ft.
Wetted Width: 8.8 ft.
Water Velocity: 2 ft./sec. (Measured with Meter)
Dominant Substrate: Gravel
Road Information
Paved County Road
Road Condition: Good
Road Width at Culvert: 25 ft.
Location of Low Point: Other
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 3 ft.
Slope: 1:1
Downstream
Fill Depth: 3 ft.
Slope: 1:1.5
Approaches
Left Approach
Length: 702 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.029 tons/year
Right Approach
Length: 603 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0249 tons/year
Erosion Information
Total Erosion at Crossing: 0.0582 tons/year
Extent of Erosion: Minor
Location of Erosion
Erosion Dimensions
Eroded Material
Material Eroded
Total Erosion
facing downstream
Length
Width
Depth
Reaching Stream?
(tons/year)
Right Upstream Streambank
3 ft.
20 ft.
1.5 ft.
yes
Sandy Loam
0.0043
Summary Information
Erosion is an area of concern for this site.
These non-native species were observerd at this site: Knapweed