Road Stream Crossing Site AUS_OS009
Au Sable River Watershed, Wright Creek
Farrington Rd
Greenwood Twp,
Oscoda County
Information collected by:
Site Location
GPS Coordinates: 44.78317
, -84.28044
T28N
R01E
Sec 26
Owned by Private
State
State
Fish Passability 0.9
Structure is NOT Perched
Total Erosion: 5.6659 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)
Structure Shape: Round
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Gravel
General Conditions: Poor
Structure Interior: corrugated
Dimensions of Structure: Length 18.5 ft.
, Width 3.3 ft.
, Height 2.3 ft.
Percentage Plugged:
Outlet: 1% to 25%
Percentage Crushed:
Inlet: 1% to 25%
Structure is NOT Perched
Structure Inlet
Water Depth: 0.3 ft.
Embedded Depth of Structure: 0.1 ft.
Water Velocity*: 1.053 ft./sec.
Structure Outlet
Water Depth: 0.4 ft.
Embedded Depth of Structure: 0.3 ft.
Water Velocity*: 1.19 ft./sec.
*Water Velocities were measured at the Surface
(with Float Test)
Stream Information
Stream Flow: Less than Bankfull
Upstream Pond: Length 13 ft.
, Width 12.3 ft.
, Depth 1.1 ft.
Riffle Information
Water Depth: 0.4 ft.
Bankfull Width: 14 ft.
Wetted Width: 9 ft.
Water Velocity: 0.5 ft./sec.
(Measured with Float Test)
Dominant Substrate: Gravel
Road Information
Gravel
County Road
Road Condition: Fair
Road Width at Culvert: 17.9 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 0.2 ft.
Slope: Vertical
Downstream
Fill Depth: 0 ft.
Slope: Vertical
Approaches
Left Approach
Length: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 2.8107 tons/year
Right Approach
Length: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 2.8107 tons/year
Erosion Information
Total Erosion at Crossing: 5.6659 tons/year
Extent of Erosion: Moderate
Location of Erosion | Erosion Dimensions | Eroded Material | Material Eroded | Total Erosion | ||
facing downstream | Length | Width | Depth | Reaching Stream? | (tons/year) | |
Right Ditch |
2 ft. |
2 ft. |
1.8 ft. |
yes |
Sandy Loam |
0.0242 |
Right Downstream |
3 ft. |
2.5 ft. |
1 ft. |
yes |
Sandy Loam |
0.0202 |
Summary Information
Fish Passability 0.9
A future visit to this site is recommended. To assess erosion/aging culvert
These non-native species were observerd at this site: Spotted Knapweed, Bladder Campeon