Road Stream Crossing Site AUS_CR089

Au Sable River Watershed, Middle Branch Big Creek
Pickeral Lake Rd
Lovells Twp, Crawford County
Information collected by:
Huron Pines
Site Location
GPS Coordinates: 44.79125 , -84.37328
T28N R01W Sec 25
Owned by State
Fish Passability 0.9
Structure is NOT Perched
Total Erosion: 7.828 tons/year
Severity: Severe
Year Inventoried: 2013
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 1
Structure Shape: Round
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 48 ft. , Width 5 ft. , Height 4.9 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 0.8 ft.
Embedded Depth of Structure: 0.2 ft.
Water Velocity*: 0.77 ft./sec.
Structure Outlet
Water Depth: 1.4 ft.
Embedded Depth of Structure: 0.2 ft.
Water Velocity*: 0.455 ft./sec.
*Water Velocities were measured at the Surface (with Float Test)
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 0 ft. , Width 0 ft. , Depth 0 ft.
Upstream Pond: Length 28 ft. , Width 36 ft.
Riffle Information
Water Depth: 0.5 ft.
Bankfull Width: 26.5 ft.
Wetted Width: 20 ft.
Water Velocity: 1.13 ft./sec. (Measured with Float Test)
Dominant Substrate: Gravel
Road Information
Gravel County Road
Road Condition: Good
Road Width at Culvert: 21.2 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Fill Depth: 3.3 ft.
Slope: More than 1:2
Fill Depth: 4 ft.
Slope: 1:2
Left Approach
Length: 289 ft.
Slope: 6% to 10%
Vegetation: Partial
LS Factor: 1.737
Erosion: 2.9317 tons/year
Right Approach
Length: 409 ft.
Slope: 6% to 10%
Vegetation: Partial
LS Factor: 2.05
Erosion: 4.8963 tons/year
Erosion Information
Total Erosion at Crossing: 7.828 tons/year
Extent of Erosion: Minor
Notes: Lot's of riprap, but no noticable erosion
Summary Information
Fish Passability 0.9
Fish Passage is an area of concern for this site. Fish passage is halted at the dam. No fish ladder.
These non-native species were observerd at this site: Bull Thistle, Queen Anne's Lace, Spotted Knapweed, Mullein