Road Stream Crossing Site AUS_OT113
Au Sable River Watershed, North Branch Au Sable River
Campfire Trail
Bagley Twp,
Otsego County
Information collected by:
Site Location
GPS Coordinates: 44.95567
, -84.66318
T30N
R03W
Sec 34
Owned by Private
Fish Passability 0.9
Total Erosion: 18.4451 tons/year
Severity: Severe
Year Inventoried: 2013
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 1
Structure Shape: Ellipse
Inlet Type: Mitered
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Mixture
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 42 ft.
, Width 6.5 ft.
, Height 7 ft.
Structure Inlet
Water Depth: 0.4 ft.
Embedded Depth of Structure: 0.5 ft.
Water Velocity*: 0.8 ft./sec.
Structure Outlet
Water Depth: 0.5 ft.
Embedded Depth of Structure: 1.5 ft.
Water Velocity*: 1 ft./sec.
*Water Velocities were measured at the Surface
(with Float Test)
Stream Information
Stream Flow: Less than 1/2 Bankfull
Riffle Information
Water Depth: 0.3 ft.
Bankfull Width: 20.2 ft.
Wetted Width: 11 ft.
Water Velocity: 0.75 ft./sec.
(Measured with Float Test)
Dominant Substrate: Sand
Road Information
Gravel
County Road
Road Condition: Fair
Road Width at Culvert: 23 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 2.1 ft.
Slope: 1:2
Downstream
Fill Depth: 2.4 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 520 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 1.656
Erosion: 5.4561 tons/year
Right Approach
Length: 1000 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 2.05
Erosion: 12.989 tons/year
Erosion Information
Total Erosion at Crossing: 18.4451 tons/year
Summary Information
Fish Passability 0.9
These non-native species were observerd at this site: Spotted Knapweed, Queen Anne's Lace