Road Stream Crossing Site BEAR_BC079
Bear Creek Watershed, Cedar Creek
Holso Rd
Maple Grove Twp,
Manistee County
Information collected by:
Site Location
GPS Coordinates: 44.37895
, -85.96031
T23N
R14W
Sec 23
Owned by Private
Structure is NOT Perched
Total Erosion: 0.6667 tons/year
Severity: Moderate
Year Inventoried: 2011
Inlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 1
Structure Shape: Round
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 40 ft.
, Width 4 ft.
, Height 4 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 1.2 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.2 ft./sec.
Structure Outlet
Water Depth: 1.73 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.6 ft./sec.
*Water Velocities were measured 0.72 ft. below Surface
(with Meter)
Stream Information
Stream Flow: Less than Bankfull
Riffle Information
Water Depth: 1.65 ft.
Bankfull Width: 9.2 ft.
Wetted Width: 6.9 ft.
Water Velocity: 1.5 ft./sec.
(Measured with Meter)
Dominant Substrate: Sand
Road Information
Gravel
County Road
Road Condition: Good
Road Width at Culvert: 22 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1 ft.
Slope: 1:1
Downstream
Fill Depth: 1.3 ft.
Slope: 1:1
Approaches
Left Approach
Length: 1000 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.303 tons/year
Right Approach
Length: 1000 ft.
Slope: Less Than 1%
Vegetation: Partial
LS Factor: 0.06
Erosion: 0.3636 tons/year
Erosion Information
Total Erosion at Crossing: 0.6667 tons/year
Extent of Erosion: Moderate
Summary Information
Erosion is an area of concern for this site.