Road Stream Crossing Site LTB-264

Little Traverse Bay Watershed, Tributary to South Branch - Spring Brook
Howard Rd
Chandler Twp, Charlevoix County
Information collected by:
Tip of the Mitt Watershed Council
Site Location
GPS Coordinates: 45.23399002 , -84.8174271
Sec 20
Fish Passability 0.5
Total Erosion: 0.5779 tons/year
Severity: Moderate
Year Inventoried: 2014
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: Good
Structure Interior: corrugated
Dimensions of Structure: Length 30 ft. , Width 1.67 ft. , Height 1.42 ft.
Percentage Plugged: Inlet: 0% Outlet: 0% In Pipe: 0%
Percentage Crushed: Inlet: 0% Outlet: 0% In Pipe: 0%
Structure Inlet
Water Depth: 0.3 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.1 ft./sec.
Structure Outlet
Water Depth: 0.25 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 2.4 ft./sec.
*Water Velocities were measured 0.6 ft. below Surface
Additional Comments
MDNR. Old site ID: C-35.
Scour Pool: Length 10 ft. , Width 6 ft. , Depth 1 ft.
Riffle Information
Water Depth: 0.3 ft.
Bankfull Width: 5.5 ft.
Wetted Width: 3.8 ft.
Water Velocity: 0.75 ft./sec. (Measured with Meter)
Dominant Substrate: Sand
Road Information
Gravel County Road
Road Condition: Good
Road Width at Culvert: 21 ft.
Location of Low Point: Other
Embankments
Upstream
Fill Depth: 1 ft.
Slope: 1:2
Downstream
Fill Depth: 2 ft.
Slope: 1:2
Approaches
Left Approach
Length: 999 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.289 tons/year
Right Approach
Length: 999 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.289 tons/year
Erosion Information
Total Erosion at Crossing: 0.5779 tons/year
Extent of Erosion: Stabilized
Summary Information
Fish Passability 0.5