Road Stream Crossing Site AUS_OS028
Au Sable River Watershed, Au Sable River
Deeter Rd (489)
Big Creek Twp,
Oscoda County
Information collected by:
Site Location
GPS Coordinates: 44.67667
, -84.23216
T26N
R01E
Sec 2
Owned by Private
State
State
Fish Passability 0
Total Erosion: 10.588 tons/year
Severity: Severe
Year Inventoried: 2013
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: Bridge
Structure Shape: Open Bottom Square/Rectangle
Inlet Type: Wingwall 10-30 Degree
Outlet Type: At Stream Grade
Structure Material: Concrete
Structure Substrate: Rock
General Conditions: Good
Multiple Culverts/Spans | ||||
Culvert/Span | Width | Length | Height | Material |
1 |
35 ft. |
34 ft. |
8.5 ft. |
Concrete |
3 |
30 ft. |
47 ft. |
8.5 ft. |
Concrete |
Structure Interior: smooth
Dimensions of Structure: Length 34 ft.
, Width 35 ft.
, Height 8.5 ft.
Structure Inlet
Water Depth: 3.8 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 3.6 ft./sec.
Structure Outlet
Water Depth: 3.5 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 3.214 ft./sec.
*Water Velocities were measured at the Surface
(with Float Test)
Stream Information
Stream Flow: Less than Bankfull
Riffle Information
Water Depth: 2.4 ft.
Bankfull Width: 170 ft.
Wetted Width: 136 ft.
Water Velocity: 5.556 ft./sec.
(Measured with Float Test)
Dominant Substrate: Cobble
Road Information
Paved
County Road
Road Condition: Fair
Road Width at Culvert: 31.5 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Fill Depth: 0 ft.
Slope: Vertical
Fill Depth: 0 ft.
Slope: Vertical
Approaches
Left Approach
Length: 510 ft.
Slope: 1% to 5%
Vegetation: Partial
LS Factor: 0.644
Erosion: 0.342 tons/year
Right Approach
Length: 1000 ft.
Slope: More Than 10%
Vegetation: Partial
LS Factor: 9.065
Erosion: 9.4396 tons/year
Erosion Information
Total Erosion at Crossing: 10.588 tons/year
Extent of Erosion: Moderate
Notes: Erosion on banks of upstream/ downstream side
Location of Erosion | Erosion Dimensions | Eroded Material | Material Eroded | Total Erosion | ||
facing downstream | Length | Width | Depth | Reaching Stream? | (tons/year) | |
Left Upstream |
30 ft. |
29 ft. |
4 ft. |
yes |
Sandy Loam |
0.8064 |
Summary Information
Fish Passability 0
A future visit to this site is recommended. Erosion may become a future problem
These non-native species were observerd at this site: Queen Anne's Lace, Burdock, White Sweet Clover, Yellow Sweet Clover, Spotted Knapweed