Road Stream Crossing Site PM_O007
Pere Marquette River Watershed, Allen Creek tributary
200th Ave
Colfax Twp,
Oceana County
Information collected by:
Site Location
GPS Coordinates: 43.7607114106645
, -86.0581666231155
T16N
R15W
Sec 23
Owned by Private
Structure is NOT Perched
Total Erosion: 0.1653 tons/year
Severity: Minor
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: Mixture
General Conditions: Fair
Structure Interior: corrugated
Dimensions of Structure: Length 20 ft.
, Width 3.5 ft.
, Height 3.5 ft.
Percentage Plugged:
Inlet: 0%
Outlet: 0%
In Pipe: 51% to 75%
Structure is NOT Perched
Structure Inlet
Water Depth: 0.9 ft.
Embedded Depth of Structure: 1.3 ft.
Water Velocity*: 0.5 ft./sec.
Structure Outlet
Water Depth: 1 ft.
Embedded Depth of Structure: 1 ft.
Water Velocity*: 0.1 ft./sec.
*Water Velocities were measured 0.6 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: 1 ft.
Bankfull Width: 8 ft.
Wetted Width: 4 ft.
Water Velocity: 0.1 ft./sec.
(Measured with Meter)
Dominant Substrate: Organics
Road Information
Gravel
County Road
(Seasonal)
Road Condition: Poor
Road Width at Culvert: 10 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1.5 ft.
Slope: More than 1:2
Downstream
Fill Depth: 1.8 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 600 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0826 tons/year
Right Approach
Length: 600 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0826 tons/year
Erosion Information
Total Erosion at Crossing: 0.1653 tons/year
Extent of Erosion: Moderate
Summary Information
Erosion is an area of concern for this site.
No, seasonal road.