Road Stream Crossing Site AUS_CR103
Au Sable River Watershed, Tributary of North Branch Au Sable River
Harold's Trail
Lovells Twp,
Crawford County
Information collected by:
Site Location
GPS Coordinates: 44.70243
, -84.41576
T27N
R01W
Sec 27
Owned by Private
Fish Passability 0.5
Structure is NOT Perched
Total Erosion: 2.0821 tons/year
Severity: Moderate
Year Inventoried: 2012
Inlet
Outlet
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: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: None
General Conditions: Fair
Structure Interior: corrugated
Dimensions of Structure: Length 39 ft.
, Width 2 ft.
, Height 2 ft.
Percentage Crushed:
Inlet: 0%
Outlet: 0%
In Pipe: 1% to 25%
Structure is NOT Perched
Structure Inlet
Water Depth: 0.5 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.2 ft./sec.
Structure Outlet
Water Depth: 0.4 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 2.4 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: 0.2 ft.
Bankfull Width: 11 ft.
Wetted Width: 9.5 ft.
Water Velocity: 0.8 ft./sec.
(Measured with Meter)
Dominant Substrate: Sand
Road Information
Sand
County Road
Road Condition: Good
Road Width at Culvert: 16 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 1.6 ft.
Slope: More than 1:2
Downstream
Fill Depth: 1.6 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 700 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.535
Erosion: 1.6507 tons/year
Right Approach
Length: 225 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.435
Erosion: 0.4314 tons/year
Erosion Information
Total Erosion at Crossing: 2.0821 tons/year
Summary Information
Fish Passability 0.5
These non-native species were observerd at this site: Spotted Knapweed