Road Stream Crossing Site PM_O004
Pere Marquette River Watershed, Ruby Creek
Adams Rd
Colfax Twp,
Oceana County
Information collected by:
Site Location
GPS Coordinates: 43.8009912765866
, -86.1270940303802
T16N
R15W
Sec 5
Owned by Private
Total Erosion: 0.4953 tons/year
Severity: Moderate
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: Pipe Arch
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Mixture
General Conditions: Fair
Structure Interior: corrugated
Dimensions of Structure: Length 30 ft.
, Width 3.5 ft.
, Height 2 ft.
Structure Inlet
Water Depth: 1.7 ft.
Water Velocity*: 1.8 ft./sec.
Structure Outlet
Water Depth: 1.1 ft.
Water Velocity*: 2 ft./sec.
*Water Velocities were measured 1.5 ft. below Surface
(with Meter)
Stream Information
Stream Flow: Bankfull
Scour Pool: Length 19 ft.
, Width 21 ft.
, Depth 3 ft.
Riffle Information
Water Depth: 1.2 ft.
Bankfull Width: 7.5 ft.
Wetted Width: 7.5 ft.
Water Velocity: 0.9 ft./sec.
(Measured with Meter)
Dominant Substrate: Sand
Road Information
Gravel
County Road
Road Condition: Fair
Road Width at Culvert: 14 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1.2 ft.
Slope: 1:2
Downstream
Fill Depth: 2 ft.
Slope: 1:1.5
Approaches
Left Approach
Length: 230 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.436
Erosion: 0.3868 tons/year
Right Approach
Length: 200 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0386 tons/year
Erosion Information
Total Erosion at Crossing: 0.4953 tons/year
Extent of Erosion: Moderate
Location of Erosion | Erosion Dimensions | Eroded Material | Material Eroded | Total Erosion | ||
facing downstream | Length | Width | Depth | Reaching Stream? | (tons/year) | |
Right Downstream Embankment |
3 ft. |
2 ft. |
2 ft. |
yes |
Gravelly Loam |
0.042 |
Left Downstream Embankment |
2 ft. |
2 ft. |
2 ft. |
yes |
Gravelly Loam |
0.028 |
Summary Information
Erosion is an area of concern for this site.