Road Stream Crossing Site PM_M083
Pere Marquette River Watershed, Swan Creek tributary
Scottville Rd
Eden Twp,
Mason County
Information collected by:
Site Location
GPS Coordinates: 43.85791
, -86.27821
T17N
R16W
Sec 19
Owned by Private
Fish Passability 0.9
Total Erosion: 0.2861 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: Open Bottom Square/Rectangle
Inlet Type: Wingwall 30-70 Degree
Outlet Type: At Stream Grade
Structure Material: Concrete
Structure Substrate: Mixture
General Conditions: Good
Structure Interior: smooth
Dimensions of Structure: Length 37 ft.
, Width 10 ft.
, Height 5 ft.
Structure Inlet
Water Depth: 0.8 ft.
Water Velocity*: 0.2 ft./sec.
Structure Outlet
Water Depth: 0.6 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: 0.5 ft.
Bankfull Width: 7 ft.
Wetted Width: 5 ft.
Water Velocity: 0.6 ft./sec.
(Measured with Meter)
Dominant Substrate: Sand
Road Information
Paved
County Road
Road Condition: Good
Road Width at Culvert: 22 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 3.5 ft.
Slope: Vertical
Downstream
Fill Depth: 3.5 ft.
Slope: Vertical
Approaches
Left Approach
Length: 610 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.522
Erosion: 0.2314 tons/year
Right Approach
Length: 180 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.418
Erosion: 0.0547 tons/year
Erosion Information
Total Erosion at Crossing: 0.2861 tons/year
Location of Erosion | Erosion Dimensions | Eroded Material | Material Eroded | Total Erosion | ||
facing downstream | Length | Width | Depth | Reaching Stream? | (tons/year) | |
Right Downstream Streambank |
8 ft. |
4 ft. |
0.2 ft. |
yes |
Loam |
|
Summary Information
Fish Passability 0.9