Road Stream Crossing Site AUS_OS167
Au Sable River Watershed, Tributary of Comins Creek
Kneeland Rd
Comins Twp,
Oscoda County
Information collected by:
Site Location
GPS Coordinates: 44.71054
, -84.0304
T27N
R03E
Sec 23,26
Owned by Private
Fish Passability 0.5
Structure is NOT Perched
Total Erosion: 2.0706 tons/year
Severity: Severe
Year Inventoried: 2012
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: Round
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Fair
Structure Interior: corrugated
Dimensions of Structure: Length 43.8 ft.
, Width 1.5 ft.
, Height 1.5 ft.
Structure is NOT Perched
Water Depth: 0 ft.
Embedded Depth of Structure: 0.8 ft.
Water Velocity*: 0 ft./sec.
Water Depth: 0 ft.
Embedded Depth of Structure: 0.5 ft.
Water Velocity*: 0 ft./sec.
Additional Comments
No water in or near culvert. No sign of stream in the area.
Stream Information
Stream Flow: None
Scour Pool: Length 0 ft.
, Width 0 ft.
, Depth 0 ft.
Upstream Pond: Length 0 ft.
, Width 0 ft.
, Depth 0 ft.
Riffle Information
Water Depth: 0 ft.
Bankfull Width: 0 ft.
Wetted Width: 0 ft.
Water Velocity: 0 ft./sec.
Road Information
Sand
County Road
Road Condition: Fair
Road Width at Culvert: 34.8 ft.
Location of Low Point: Other
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 2.6 ft.
Slope: Vertical
Downstream
Fill Depth: 3 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 0 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0 tons/year
Right Approach
Length: 417.6 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.484
Erosion: 1.9357 tons/year
Erosion Information
Total Erosion at Crossing: 2.0706 tons/year
Extent of Erosion: Moderate
Erosion is occurring and corrective actions can be installed to address the problem.
Notes: Two narrow, long gullies coming off the road have eroded to the right of the downstream culvert.
Location of Erosion | Erosion Dimensions | Eroded Material | Material Eroded | Total Erosion | ||
facing downstream | Length | Width | Depth | Reaching Stream? | (tons/year) | |
Right Downtream Ditch |
16 ft. |
0.9 ft. |
0.7 ft. |
no |
Sand |
0.0862 |
Right Downtream Ditch |
15.8 ft. |
0.8 ft. |
0.4 ft. |
no |
Sand |
0.0487 |
Summary Information
Fish Passability 0.5
These non-native species were observerd at this site: Spotted Knapweed, Sweet Clover