Road Stream Crossing Site PM_O025
Pere Marquette River Watershed, Allen Creek
Maple Island Rd
Colfax Twp,
Oceana County
Information collected by:
Site Location
GPS Coordinates: 43.76102
, -86.03901
T16N
R15W
Sec 24
Owned by Private
Fish Passability 0.9
Total Erosion: 0.3394 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: Round
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Fair
Structure Interior: corrugated
Dimensions of Structure: Length 25 ft.
, Width 5 ft.
, Height 5 ft.
Structure Inlet
Water Depth: 1.5 ft.
Water Velocity*: 0.1 ft./sec.
Structure Outlet
Water Depth: 1.6 ft.
Water Velocity*: 0.1 ft./sec.
*Water Velocities were measured at the Surface
(with Meter)
Stream Information
Stream Flow: Bankfull
Riffle Information
Water Depth: 0.7 ft.
Bankfull Width: 4.5 ft.
Wetted Width: 4.5 ft.
Water Velocity: 0.1 ft./sec.
(Measured with Meter)
Dominant Substrate: Organics
Road Information
Sand
County Road
(Seasonal)
Road Condition: Fair
Road Width at Culvert: 12 ft.
Location of Low Point: Other
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 1.2 ft.
Slope: 1:1.5
Downstream
Fill Depth: 1.1 ft.
Slope: Vertical
Approaches
Left Approach
Length: 200 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0331 tons/year
Right Approach
Length: 200 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.43
Erosion: 0.2843 tons/year
Erosion Information
Total Erosion at Crossing: 0.3394 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) | |
Right Approach |
200 ft. |
1 ft. |
0.1 ft. |
yes |
Sand |
0.022 |
Summary Information
Fish Passability 0.9