Road Stream Crossing Site AUS_OS006
Au Sable River Watershed, Tributary of Wright Creek
Townline Rd
Greenwood Twp,
Oscoda County
Information collected by:
Site Location
GPS Coordinates: 44.77744
, -84.25203
T28N
R02E
Sec 31
Owned by State
Fish Passability 0.9
Structure is NOT Perched
Total Erosion: 51.5547 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: Sand
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 44 ft.
, Width 1.5 ft.
, Height 1.5 ft.
Percentage Plugged:
Outlet: 1% to 25%
Structure is NOT Perched
Structure Inlet
Water Depth: 0.3 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0 ft./sec.
Structure Outlet
Water Depth: 1 ft.
Embedded Depth of Structure: 1 ft.
Water Velocity*: 0 ft./sec.
*Water Velocities were measured at the Surface
(with Float Test)
Stream Information
Stream Flow: None
Riffle Information
Water Depth: 0 ft.
Bankfull Width: 0 ft.
Wetted Width: 0 ft.
Water Velocity: 0 ft./sec.
(Measured with Float Test)
Dominant Substrate: Organics
Road Information
Gravel
County Road
Road Condition: Good
Road Width at Culvert: 30 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1.1 ft.
Slope: More than 1:2
Downstream
Fill Depth: 2 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 1000 ft.
Slope: More Than 10%
Vegetation: Heavy
LS Factor: 5.785
Erosion: 47.8099 tons/year
Right Approach
Length: 820 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.552
Erosion: 3.7408 tons/year
Erosion Information
Total Erosion at Crossing: 51.5547 tons/year
Extent of Erosion: Minor
Notes: Minor erosion due to road gravel/grading
Location of Erosion | Erosion Dimensions | Eroded Material | Material Eroded | Total Erosion | ||
facing downstream | Length | Width | Depth | Reaching Stream? | (tons/year) | |
Right Downstream |
4 ft. |
13 ft. |
1 ft. |
no |
Gravel |
0.004 |
Summary Information
Fish Passability 0.9
These non-native species were observerd at this site: Spotted Knapweed, Queen Anne's Lace