Road Stream Crossing Site AUS_OS173
Au Sable River Watershed, Tributary of Beaver Creek
Kneeland Rd
Greenwood Twp,
Oscoda County
Information collected by:
Site Location
GPS Coordinates: 44.71051
, -84.30231
T27N
R01E
Sec 22,27
Owned by Private
Fish Passability 0
Perch Height: 1.7 ft.
Total Erosion: 15.9172 tons/year
Severity: Severe
Year Inventoried: 2013
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: Freefall onto Riprap
Structure Material: Metal
Structure Substrate: None
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 62 ft.
, Width 1.2 ft.
, Height 1.2 ft.
Perch Height: 1.7 ft.
Structure Inlet
Water Depth: 0.1 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.1 ft./sec.
Structure Outlet
Water Depth: 0.1 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.1 ft./sec.
*Water Velocities were measured at the Surface
(with Meter)
Additional Comments
Neighbor by inlet has torn up the area, probably adding sediment to the stream.
Stream Information
Stream Flow: Less than 1/2 Bankfull
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: 0.1 ft.
Bankfull Width: 7.5 ft.
Wetted Width: 1 ft.
Water Velocity: 0.1 ft./sec.
(Measured with Meter)
Dominant Substrate: Sand
Road Information
Gravel
County Road
Road Condition: Fair
Road Width at Culvert: 23 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 7.5 ft.
Slope: 1:2
Downstream
Fill Depth: 9.5 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 600 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 1.74
Erosion: 6.6149 tons/year
Right Approach
Length: 611 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 1.749
Erosion: 6.7723 tons/year
Erosion Information
Total Erosion at Crossing: 15.9172 tons/year
Extent of Erosion: Severe
Erosion is occurring and corrective actions can be installed to address the problem.
Notes: Major erosion causing banks.
Location of Erosion | Erosion Dimensions | Eroded Material | Material Eroded | Total Erosion | ||
facing downstream | Length | Width | Depth | Reaching Stream? | (tons/year) | |
Right Downtream Ditch |
21 ft. |
4 ft. |
2.5 ft. |
yes |
Sand |
1.155 |
Left Downstream Ditch |
25 ft. |
7 ft. |
2.5 ft. |
no |
Sand |
1.375 |
Summary Information
Fish Passability 0
Erosion is an area of concern for this site.
Yes, lots of major erosion, and there is a fish passage barrier at the outlet.
A future visit to this site is recommended. Lots of major erosion and the outlet is a fish passage barrier.
These non-native species were observerd at this site: Spotted Knapweed, Autumn Olive