Road Stream Crossing Site PM_M115
Pere Marquette River Watershed, Swan Creek tributary
Kinney Rd
Riverton Twp,
Mason County
Information collected by:
Site Location
GPS Coordinates: 43.89012
, -86.28776
T17N
R17W
Sec 12
Owned by Private
Fish Passability 0.9
Total Erosion: 3.1086 tons/year
Severity: Severe
Year Inventoried: 2014
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 1
Structure Shape: Round
Inlet Type: Mitered
Outlet Type: Cascade over Riprap
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 60 ft.
, Width 6 ft.
, Height 6 ft.
Structure Inlet
Water Depth: 0.4 ft.
Water Velocity*: 0.5 ft./sec.
Structure Outlet
Water Depth: 0.5 ft.
Water Velocity*: 0.3 ft./sec.
*Water Velocities were measured 0.4 ft. below Surface
(with Meter)
Additional Comments
8x18 riprap at end of outlet
Stream Information
Stream Flow: Less than 1/2 Bankfull
Riffle Information
Water Depth: 0.4 ft.
Bankfull Width: 5 ft.
Wetted Width: 4 ft.
Water Velocity: 0.4 ft./sec.
(Measured with Meter)
Dominant Substrate: Sand
Road Information
Gravel
County Road
Road Condition: Fair
Road Width at Culvert: 19 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 6 ft.
Slope: 1:1.5
Downstream
Fill Depth: 6 ft.
Slope: 1:2
Approaches
Left Approach
Length: 270 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 1.352
Erosion: 1.9107 tons/year
Right Approach
Length: 180 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 1.186
Erosion: 1.1174 tons/year
Erosion Information
Total Erosion at Crossing: 3.1086 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 Upstream Embankment |
4 ft. |
3 ft. |
1 ft. |
yes |
Gravelly Loam |
0.004 |
Left Approach |
270 ft. |
1 ft. |
0.1 ft. |
yes |
Sand |
0.0297 |
Left Approach |
270 ft. |
1 ft. |
0.1 ft. |
yes |
Gravel |
0.027 |
Right Approach |
180 ft. |
2 ft. |
0.1 ft. |
yes |
Sand |
0.0198 |
Summary Information
Fish Passability 0.9