Road Stream Crossing Site MAN_MI_014

Big Manistee River Watershed, Ham Creek
Lanning Rd
Bloomfield Twp, Missaukee County
Information collected by:
Site Location
GPS Coordinates: 44.48901 , -85.2579
T24N R8W Sec 10
Owned by State
Structure is NOT Perched
Total Erosion: 1.8726 tons/year
Severity: Moderate
Year Inventoried: 2014
Site ID
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: Pipe Arch
Inlet Type: Apron
Outlet Type: Outlet Apron
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 51 ft. , Width 6.7 ft. , Height 4 ft.
Percentage Plugged: Inlet: 0% Outlet: 0% In Pipe: 1% to 25%
Structure is NOT Perched
Structure Inlet
Water Depth: 0.8 ft.
Embedded Depth of Structure: 0.1 ft.
Water Velocity*: 0.6 ft./sec.
Structure Outlet
Water Depth: 1 ft.
Embedded Depth of Structure: 0.4 ft.
Water Velocity*: 0.5 ft./sec.
*Water Velocities were measured 0.5 ft. below Surface (with Meter)
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 0 ft. , Width 0 ft. , Depth 0 ft.
Upstream Pond: Length 0 ft. , Width 0 ft. , Depth 0 ft.
Riffle Information
Water Depth: 0.4 ft.
Bankfull Width: 11.6 ft.
Wetted Width: 8.4 ft.
Water Velocity: 2.5 ft./sec. (Measured with Meter)
Dominant Substrate: Gravel
Road Information
Gravel County Road
Road Condition: Good
Road Width at Culvert: 20 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 1.8 ft.
Slope: More than 1:2
Downstream
Fill Depth: 1.3 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 370 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.474
Erosion: 0.9663 tons/year
Right Approach
Length: 350 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.47
Erosion: 0.9063 tons/year
Erosion Information
Total Erosion at Crossing: 1.8726 tons/year
Extent of Erosion: Moderate
Summary Information
Erosion is an area of concern for this site.

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