Road Stream Crossing Site CHAR_EV01

Lake Charlevoix Watershed, Sears Creek
Sleepy Hollow Lane
Eveline Twp, Charlevoix County
Information collected by:
Site Location
GPS Coordinates: 45.22271 , -85.17082
T33N R07W Sec 28
Owned by Private
Perch Height: 0.5 ft.
Total Erosion: 7.3892 tons/year
Severity: Severe
Year Inventoried: 2011
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: Freefall into Pool
Structure Material: Metal
Structure Substrate: None
General Conditions: Fair
Structure Interior: corrugated
Dimensions of Structure: Length 50 ft. , Width 2.5 ft. , Height 2.5 ft.
Perch Height: 0.5 ft.
Structure Inlet
Water Depth: 1.25 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 3.4 ft./sec.
Structure Outlet
Water Depth: 0.8 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 7 ft./sec.
*Water Velocities were measured 0.5 ft. below Surface (with Meter)
Additional Comments
Data collected during rain event
Stream Information
Stream Flow: Bankfull
Scour Pool: Length 5 ft. , Width 5 ft. , Depth 2.5 ft.
Riffle Information
Water Depth: 0.9 ft.
Bankfull Width: 8.7 ft.
Wetted Width: 8.7 ft.
Water Velocity: 1.8 ft./sec. (Measured with Meter)
Dominant Substrate: Sand
Road Information
Gravel Private Road
Road Condition: Fair
Road Width at Culvert: 14 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 4.5 ft.
Slope: Vertical
Downstream
Fill Depth: 5 ft.
Slope: Vertical
Approaches
Left Approach
Length: 728 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 1.849
Erosion: 5.1909 tons/year
Right Approach
Length: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 2.1983 tons/year
Erosion Information
Total Erosion at Crossing: 7.3892 tons/year
Extent of Erosion: Minor
Summary Information