Road Stream Crossing Site BEAR_BC061
Bear Creek Watershed, Tributary of Big Bear Creek
McClellan Rd
Maple Grove Twp,
Manistee County
Information collected by:
Site Location
GPS Coordinates: 44.34563
, -86.05581
T23N
R14W
Sec 31
Owned by Private
Structure is NOT Perched
Total Erosion: 4.519 tons/year
Severity: Moderate
Year Inventoried: 2011
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: Mitered
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 60 ft.
, Width 7 ft.
, Height 5 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 0.56 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.2 ft./sec.
Structure Outlet
Water Depth: 0.31 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.9 ft./sec.
*Water Velocities were measured at the Surface
(with Meter)
Stream Information
Stream Flow: Less than Bankfull
Riffle Information
Water Depth: 0.16 ft.
Bankfull Width: 11.3 ft.
Wetted Width: 10.2 ft.
Water Velocity: 1.5 ft./sec.
(Measured with Meter)
Dominant Substrate: Gravel
Road Information
Gravel
County Road
Road Condition: Good
Road Width at Culvert: 23 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 5 ft.
Slope: More than 1:2
Downstream
Fill Depth: 5.5 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 310 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.462
Erosion: 0.9075 tons/year
Right Approach
Length: 250 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 3.6116 tons/year
Erosion Information
Total Erosion at Crossing: 4.519 tons/year
Extent of Erosion: Minor
Summary Information
Erosion is an area of concern for this site.
These non-native species were observerd at this site: Knapweed