Road Stream Crossing Site AUS_PR013

Au Sable River Watershed, Van Etten Creek
F-41
Mikado Twp, Alcona County
Information collected by:
Huron Pines
Site Location
GPS Coordinates: 44.57829 , -83.42231
T25N R08E Sec 11,12
Owned by Private
Fish Passability 1
Structure is NOT Perched
Total Erosion: 0.7066 tons/year
Severity: Minor
Year Inventoried: 2012
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: Other
Outlet Type: At Stream Grade
Structure Material: Concrete
Structure Substrate: Mixture
General Conditions: Good
Structure Interior: smooth
Dimensions of Structure: Length 44.5 ft. , Width 38 ft. , Height 10 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 1.1 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.1 ft./sec.
Structure Outlet
Water Depth: 0.3 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.1 ft./sec.
*Water Velocities were measured at the Surface (with Meter)
Stream Information
Stream Flow: Less than 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: 1 ft.
Bankfull Width: 7.5 ft.
Wetted Width: 6.4 ft.
Water Velocity: 0.2 ft./sec. (Measured with Meter)
Dominant Substrate: Sand
Road Information
Paved County Road
Road Condition: Good
Road Width at Culvert: 37.5 ft.
Location of Low Point: Other
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 2.5 ft.
Slope: Vertical
Downstream
Fill Depth: 2.5 ft.
Slope: Vertical
Approaches
Left Approach
Length: 0 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0 tons/year
Right Approach
Length: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 0.7066 tons/year
Erosion Information
Total Erosion at Crossing: 0.7066 tons/year
Summary Information
Fish Passability 1
A future visit to this site is recommended. To check on water quality-looks murky and polluted.
These non-native species were observerd at this site: Spotted Knapweed, Sweet Clover, Autumn Olive