Road Stream Crossing Site PM_M043
Pere Marquette River Watershed, Pere Marquette tributary
Custer Rd
Custer Twp,
Mason County
Information collected by:
Site Location
GPS Coordinates: 43.93473
, -86.21886
T18N
R16W
Sec 22
Owned by Local Government
Fish Passability 0.9
Total Erosion: 3.031 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: Pipe Arch
Inlet Type: Mitered
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 90 ft.
, Width 10 ft.
, Height 6 ft.
Structure Inlet
Water Depth: 0.5 ft.
Embedded Depth of Structure: 0.2 ft.
Water Velocity*: 0.7 ft./sec.
Structure Outlet
Water Depth: 0.7 ft.
Water Velocity*: 0.4 ft./sec.
*Water Velocities were measured at the Surface
(with Meter)
Stream Information
Stream Flow: Less than 1/2 Bankfull
Riffle Information
Water Depth: 0.4 ft.
Bankfull Width: 16 ft.
Wetted Width: 10 ft.
Water Velocity: 0.7 ft./sec.
(Measured with Meter)
Dominant Substrate: Sand
Road Information
Paved
County Road
Road Condition: Good
Road Width at Culvert: 26 ft.
Location of Low Point: Other
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 4 ft.
Slope: 1:2
Downstream
Fill Depth: 4 ft.
Slope: 1:2
Approaches
Left Approach
Length: 700 ft.
Slope: More Than 10%
Vegetation: Heavy
LS Factor: 4.99
Erosion: 3.0022 tons/year
Right Approach
Length: 90 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.372
Erosion: 0.0288 tons/year
Erosion Information
Total Erosion at Crossing: 3.031 tons/year
Extent of Erosion: Minor
Summary Information
Fish Passability 0.9