Road Stream Crossing Site AUS_CR015

Au Sable River Watershed, East Branch Au Sable River
Kinney Rd
Lovells Twp, Crawford County
Information collected by:
Huron Pines
Site Location
GPS Coordinates: 44.81413 , -84.58961
T28N R02W Sec 19
Owned by State
Other
Fish Passability 0
Structure is NOT Perched
Total Erosion: 0.8932 tons/year
Severity: Severe
Year Inventoried: 2013
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: Rock
General Conditions: Fair
Structure Interior: smooth
Dimensions of Structure: Length 24.2 ft. , Width 46.7 ft. , Height 10.4 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 1.1 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.67 ft./sec.
Structure Outlet
Water Depth: 1.5 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 3.125 ft./sec.
*Water Velocities were measured at the Surface (with Float Test)
Additional Comments
Military land to the immediate north of road crossing
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 0 ft. , Width 0 ft. , Depth 0 ft.
Upstream Pond: Length 50 ft. , Width 80 ft.
Riffle Information
Water Depth: 1.5 ft.
Bankfull Width: 23.5 ft.
Wetted Width: 15.5 ft.
Water Velocity: 1.56 ft./sec. (Measured with Float Test)
Dominant Substrate: Sand
Road Information
Sand County Road
Road Condition: Fair
Road Width at Culvert: 23.5 ft.
Location of Low Point: Other
Runoff Path: Roadway
Fill Depth: 0 ft.
Slope: Vertical
Fill Depth: 0 ft.
Slope: Vertical
Approaches
Left Approach
Length: 280 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.452
Erosion: 0.8193 tons/year
Length: 0 ft.
Slope: 0%
Vegetation: Heavy
LS Factor: 0
Erosion: 0 tons/year
Erosion Information
Total Erosion at Crossing: 0.8932 tons/year
Extent of Erosion: Moderate
Location of Erosion
Erosion Dimensions
Eroded Material
Material Eroded
Total Erosion
facing downstream
Length
Width
Depth
Reaching Stream?
(tons/year)
Right Approach
12 ft.
11 ft.
0.8 ft.
no
Sand
0.0739
Summary Information
Fish Passability 0
Fish Passage is an area of concern for this site. Yes, lots of fallen trees in downstream
A future visit to this site is recommended. Lots of fallen debris potentially blocking fish passage.
These non-native species were observerd at this site: Spotted Knapweed

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