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
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: 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
Embankments
Upstream
Fill Depth: 3.5 ft.
Slope: 1:1
Downstream
Fill Depth: 3.5 ft.
Slope: 1:1
Approaches
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 | Length | Width | Depth | Reaching Stream? | (tons/year) | |
Left Downstream Embankment |
2 ft. |
3 ft. |
0.5 ft. |
yes |
Gravelly Loam |
0.001 |
Right Downstream Embankment |
2 ft. |
3 ft. |
0.5 ft. |
yes |
Gravelly Loam |
0.001 |
Summary Information
Erosion is an area of concern for this site.