Road Stream Crossing Site PM_N008

Pere Marquette River Watershed, Whipple Creek
Oak Ave
Home Twp, Newaygo County
Information collected by:
Site Location
GPS Coordinates: 43.7532876597309 , -85.7015776634216
T16N R12W Sec 25
Owned by Private
Perch Height: 0.1 ft.
Total Erosion: 1.4941 tons/year
Severity: Severe
Year Inventoried: 2014
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: Freefall onto Riprap
Structure Material: Metal
Structure Substrate: None
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 34 ft. , Width 3 ft. , Height 3 ft.
Perch Height: 0.1 ft.
Structure Inlet
Water Depth: 0.4 ft.
Water Velocity*: 1.3 ft./sec.
Structure Outlet
Water Depth: 0.2 ft.
Water Velocity*: 2.6 ft./sec.
*Water Velocities were measured 0.2 ft. below Surface (with Meter)
Stream Information
Stream Flow: Less than Bankfull
Riffle Information
Water Depth: 0.1 ft.
Bankfull Width: 6.5 ft.
Wetted Width: 6 ft.
Water Velocity: 1 ft./sec. (Measured with Meter)
Dominant Substrate: Sand
Road Information
Gravel County Road
Road Condition: Good
Road Width at Culvert: 17 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Fill Depth: 3.5 ft.
Slope: 1:1
Fill Depth: 3.5 ft.
Slope: 1:1
Left Approach
Length: 180 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 1.186
Erosion: 0.9998 tons/year
Right Approach
Length: 240 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.438
Erosion: 0.4923 tons/year
Erosion Information
Total Erosion at Crossing: 1.4941 tons/year
Extent of Erosion: Minor
Location of Erosion
Erosion Dimensions
Eroded Material
Material Eroded
Total Erosion
facing downstream
Reaching Stream?
Left Downstream Embankment
2 ft.
3 ft.
0.5 ft.
Gravelly Loam
Right Downstream Embankment
2 ft.
3 ft.
0.5 ft.
Gravelly Loam
Summary Information
Erosion is an area of concern for this site.