Road Stream Crossing Site PM_M079
Pere Marquette River Watershed, Swan Creek
Kinney Rd
Eden Twp,
Mason County
Information collected by:
Site Location
GPS Coordinates: 43.88989
, -86.25504
T17N
R16W
Sec 5
Owned by Private
Fish Passability 0.9
Total Erosion: 2.5272 tons/year
Severity: Moderate
Year Inventoried: 2014
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: Bridge
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: Fair
Dimensions of Structure: Length 18 ft.
, Width 10 ft.
, Height 4.5 ft.
Structure Inlet
Water Depth: 0.8 ft.
Water Velocity*: 1 ft./sec.
Structure Outlet
Water Depth: 1 ft.
Water Velocity*: 0.6 ft./sec.
*Water Velocities were measured 0.5 ft. below Surface
(with Meter)
Additional Comments
Outlet wingwall is falling apart
Stream Information
Stream Flow: Less than 1/2 Bankfull
Riffle Information
Water Depth: 0.6 ft.
Bankfull Width: 12 ft.
Wetted Width: 10 ft.
Water Velocity: 0.8 ft./sec.
(Measured with Meter)
Dominant Substrate: Sand
Road Information
Gravel
County Road
Road Condition: Good
Road Width at Culvert: 18 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Slope: Vertical
Slope: Vertical
Approaches
Left Approach
Length: 210 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 1.248
Erosion: 1.2996 tons/year
Right Approach
Length: 450 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.49
Erosion: 1.0934 tons/year
Erosion Information
Total Erosion at Crossing: 2.5272 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 |
400 ft. |
1 ft. |
0.1 ft. |
yes |
Sand |
0.044 |
Right Approach |
400 ft. |
1 ft. |
0.1 ft. |
yes |
Sand |
0.044 |
Left Approach |
210 ft. |
1 ft. |
0.1 ft. |
yes |
Sand |
0.0231 |
Left Approach |
210 ft. |
1 ft. |
0.1 ft. |
yes |
Sand |
0.0231 |
Summary Information
Fish Passability 0.9