Road Stream Crossing Site AUS_CR102

Au Sable River Watershed, East Branch Big Creek
Low Rd
Lovells Twp, Crawford County
Information collected by:
Huron Pines
Site Location
GPS Coordinates: 44.75119 , -84.37645
T27N R01W Sec 1
Owned by Private
Fish Passability 0.9
Structure is NOT Perched
Total Erosion: 1.9554 tons/year
Severity: Moderate
Year Inventoried: 2012
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 8 ft. , Width 2.1 ft. , Height 3.5 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 1.4 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.5 ft./sec.
Structure Outlet
Water Depth: 1.2 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.9 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: 0.6 ft.
Bankfull Width: 28.3 ft.
Wetted Width: 21.5 ft.
Water Velocity: 2 ft./sec. (Measured with Meter)
Dominant Substrate: Cobble
Road Information
Sand Private Road
Road Condition: Poor
Road Width at Culvert: 8 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Fill Depth: 0.6 ft.
Slope: Vertical
Fill Depth: 0.6 ft.
Slope: Vertical
Left Approach
Length: 700 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.535
Erosion: 0.8253 tons/year
Right Approach
Length: 350 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 1.465
Erosion: 1.13 tons/year
Erosion Information
Total Erosion at Crossing: 1.9554 tons/year
Summary Information
Fish Passability 0.9
Erosion is an area of concern for this site. Lots of sand washing down roadway and into stream.
A future visit to this site is recommended. Because of the erosion in the road.
These non-native species were observerd at this site: Spotted Knapweed, St. John's wort, white Sweet Clover, European swamp thistle