Road Stream Crossing Site PM_M082
Pere Marquette River Watershed, Swan Creek tributary
Darr Rd
Eden Twp,
Mason County
Information collected by:
Site Location
GPS Coordinates: 43.84584
, -86.25878
T17N
R16W
Sec 29
Owned by Private
Fish Passability 0.5
Total Erosion: 0.2119 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: None
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 45 ft.
, Width 3.5 ft.
, Height 2 ft.
Structure Inlet
Water Depth: 0.2 ft.
Water Velocity*: 0.1 ft./sec.
Structure Outlet
Water Depth: 0.2 ft.
Water Velocity*: 0.1 ft./sec.
*Water Velocities were measured at the Surface
(with Meter)
Stream Information
Stream Flow: Less than 1/2 Bankfull
Riffle Information
Water Depth: 0.1 ft.
Bankfull Width: 4 ft.
Wetted Width: 1.5 ft.
Water Velocity: 0.2 ft./sec.
(Measured with Meter)
Dominant Substrate: Silt
Road Information
Gravel
County Road
Road Condition: Good
Road Width at Culvert: 21 ft.
Location of Low Point: Other
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1.5 ft.
Slope: More than 1:2
Downstream
Fill Depth: 1.5 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 150 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0434 tons/year
Right Approach
Length: 80 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.364
Erosion: 0.1685 tons/year
Erosion Information
Total Erosion at Crossing: 0.2119 tons/year
Summary Information
Fish Passability 0.5