Road Stream Crossing Site AUS_CR102
Au Sable River Watershed, East Branch Big Creek
Low Rd
Lovells Twp,
Crawford County
Information collected by:
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
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 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
Embankments
Upstream
Fill Depth: 0.6 ft.
Slope: Vertical
Downstream
Fill Depth: 0.6 ft.
Slope: Vertical
Approaches
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