Road Stream Crossing Site AUS_OS095
Au Sable River Watershed, Tributary of Au Sable River
Cherry Creek Rd
Big Creek Twp,
Oscoda County
Information collected by:
Site Location
GPS Coordinates: 44.68153
, -84.18298
T26N,27N
R02E,02E
Sec 3,34
Owned by Private
Fish Passability 0
Perch Height: 0.7 ft.
Total Erosion: 0.9395 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: Apron
Outlet Type: Cascade over Riprap
Structure Material: Metal
Structure Substrate: None
General Conditions: New
Structure Interior: corrugated
Dimensions of Structure: Length 95.6 ft.
, Width 4 ft.
, Height 4 ft.
Perch Height: 0.7 ft.
Structure Inlet
Water Depth: 0.6 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 3.33 ft./sec.
Structure Outlet
Water Depth: 0.5 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 8.89 ft./sec.
*Water Velocities were measured at the Surface
(with Float Test)
Additional Comments
Road stream crossing is on Big Creek and Elmer Township line. Heavy rain day before and day of survey.
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: 0.4 ft.
Bankfull Width: 20 ft.
Wetted Width: 5.8 ft.
Water Velocity: 1.54 ft./sec.
(Measured with Float Test)
Dominant Substrate: Sand
Road Information
Paved
County Road
Road Condition: Good
Road Width at Culvert: 24.2 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 8.5 ft.
Slope: More than 1:2
Downstream
Fill Depth: 10.2 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 0.456 tons/year
Right Approach
Length: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 0.456 tons/year
Erosion Information
Total Erosion at Crossing: 0.9395 tons/year
Extent of Erosion: Minor
Erosion is occurring and corrective actions can be installed to address the problem.
Notes: Misplacement of culvert and high water velocity are causing water to erode a very steep bank on the downstream right side.
Location of Erosion | Erosion Dimensions | Eroded Material | Material Eroded | Total Erosion | ||
facing downstream | Length | Width | Depth | Reaching Stream? | (tons/year) | |
Right Downstream Streambank |
13 ft. |
3.2 ft. |
2.2 ft. |
yes |
Sandy Loam |
0.0275 |
Summary Information
Fish Passability 0
Erosion is an area of concern for this site.
See erosion notes
A future visit to this site is recommended. To check on ersion problems
These non-native species were observerd at this site: Mullein and Spotted Knapweed