Road Stream Crossing Site AUS_CR016
Au Sable River Watershed, East Branch Au Sable River
County Rd 612
Lovells Twp,
Crawford County
Information collected by:
Site Location
GPS Coordinates: 44.78913
, -84.59676
T28N
R02W
Sec 30
Owned by State
Fish Passability 0.5
Structure is NOT Perched
Total Erosion: 0.2361 tons/year
Severity: Moderate
Year Inventoried: 2013
Crossing Information
Type of Crossing: Other
Structure Shape: Ellipse
Inlet Type: Mitered
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Rock
General Conditions: Fair
Multiple Culverts/Spans | ||||
Culvert/Span | Width | Length | Height | Material |
1 |
4.6 ft. |
49 ft. |
3.3 ft. |
Metal |
2 |
4.6 ft. |
49 ft. |
3.3 ft. |
Metal |
3 |
4.6 ft. |
49 ft. |
3.3 ft. |
Metal |
Structure Interior: corrugated
Dimensions of Structure: Length 49 ft.
, Width 4.6 ft.
, Height 3.3 ft.
Percentage Plugged:
Inlet: 0%
Outlet: 0%
In Pipe: 26% to 50%
Structure is NOT Perched
Structure Inlet
Water Depth: 0.4 ft.
Embedded Depth of Structure: 0.4 ft.
Water Velocity*: 1.7 ft./sec.
Structure Outlet
Water Depth: 1.6 ft.
Embedded Depth of Structure: 0.4 ft.
Water Velocity*: 2.27 ft./sec.
*Water Velocities were measured at the Surface
(with Float Test)
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 28 ft.
, Width 22 ft.
, Depth 1.8 ft.
Upstream Pond: Length 34 ft.
, Width 40 ft.
Riffle Information
Water Depth: 1.9 ft.
Bankfull Width: 44 ft.
Wetted Width: 41 ft.
Water Velocity: 1.42 ft./sec.
(Measured with Float Test)
Dominant Substrate: Sand
Road Information
Paved
County Road
Road Condition: Good
Road Width at Culvert: 30 ft.
Location of Low Point: Other
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1.2 ft.
Slope: More than 1:2
Downstream
Fill Depth: 2 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 480 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.496
Erosion: 0.2361 tons/year
Length: 0 ft.
Slope: 0%
Vegetation: Partial
LS Factor: 0
Erosion: 0 tons/year
Erosion Information
Total Erosion at Crossing: 0.2361 tons/year
Extent of Erosion: Minor
Notes: Rock path to stream on right upstream approach may cause future erosion.
Summary Information
Fish Passability 0.5
A future visit to this site is recommended. Crushed pipes, especially the primary pipe (crushed ~30-50%).
These non-native species were observerd at this site: Spotted Knapweed