Road Stream Crossing Site AUS_CR106

Au Sable River Watershed, Tributary of North Branch Au Sable River
Burchi Trail
Lovells Twp, Crawford County
Information collected by:
Huron Pines
Site Location
GPS Coordinates: 44.96926 , -84.68189
T28N R01W Sec 20
Owned by Private
Fish Passability 0
Structure is NOT Perched
Total Erosion: 0.0228 tons/year
Severity: Severe
Year Inventoried: 2012
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 1
Structure Shape: Round
Inlet Type: Trash Rack
Outlet Type: At Stream Grade
Structure Substrate: Mixture
General Conditions: Poor
Structure Interior: smooth
Dimensions of Structure: Length 40 ft. , Width 1.5 ft. , Height 1.5 ft.
Percentage Plugged: Inlet: 26% to 50% Outlet: 0% In Pipe: 0%
Structure is NOT Perched
Structure Inlet
Water Depth: 0.6 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.9 ft./sec.
Structure Outlet
Water Depth: 0.4 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 4.3 ft./sec.
*Water Velocities were measured at the Surface (with Meter)
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 19 ft. , Width 20 ft. , Depth 1.2 ft.
Upstream Pond: Length 150 ft. , Width 55 ft. , Depth 3 ft.
Riffle Information
Water Depth: 0.3 ft.
Bankfull Width: 35 ft.
Wetted Width: 23 ft.
Water Velocity: 0.1 ft./sec. (Measured with Meter)
Dominant Substrate: Gravel
Road Information
Sand Private Road
Road Condition: Poor
Road Width at Culvert: 1 ft.
Location of Low Point: Other
Runoff Path: Roadway
Fill Depth: 4.2 ft.
Slope: More than 1:2
Fill Depth: 4.3 ft.
Slope: More than 1:2
Left Approach
Length: 16 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.263
Erosion: 0.0012 tons/year
Right Approach
Length: 0 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0 tons/year
Erosion Information
Total Erosion at Crossing: 0.0228 tons/year
Extent of Erosion: Moderate
Erosion is occurring and corrective actions can be installed to address the problem.
Location of Erosion
Erosion Dimensions
Eroded Material
Material Eroded
Total Erosion
facing downstream
Reaching Stream?
Left Downstream Ditch
7 ft.
5 ft.
0.5 ft.
Summary Information
Fish Passability 0
Erosion is an area of concern for this site. Yes, large upstream pond, scour pool, and erosion in ditch.
A future visit to this site is recommended. Because of the the upstream pond, scour pool, and erosion.
These non-native species were observerd at this site: Canada Thistle, Spotted Knapweed, Sweet Clover