Road Stream Crossing Site Boyne_EG-1

Lake Charlevoix Watershed, Boyne River
Lake St
Charlevoix County
Information collected by:
Tip of the Mitt Watershed Council
Site Location
GPS Coordinates: 45.2143632588726 , -85.0147454465343
Fish Passability 0.9
Total Erosion: 0.3702 tons/year
Severity: Minor
Year Inventoried: 2015
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 2
Structure Shape: Pipe Arch
Inlet Type: Mitered
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Mixture
General Conditions: Good
Multiple Culverts/Spans
Culvert/Span
Width
Length
Height
Material
1
13 ft.
7 ft.
Metal
2
13 ft.
7 ft.
Metal
Structure Interior: corrugated
Dimensions of Structure: Length 72.5 ft. , Width 13 ft. , Height 7 ft.
Structure Inlet
Water Depth: 3.3 ft.
Water Velocity*: 1.2 ft./sec.
Structure Outlet
Water Depth: 4.5 ft.
Water Velocity*: 1.04 ft./sec.
*Water Velocities were measured 1.98 ft. below Surface (with Meter)
Additional Comments
Northern Michigan Premier Properties
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 68640 ft. , Width 6600 ft. , Depth 142 ft.
Upstream Pond: Length 0 ft. , Width 0 ft. , Depth 0 ft.
Riffle Information
Water Depth: 4.4 ft.
Bankfull Width: 32.75 ft.
Wetted Width: 31.75 ft.
Water Velocity: 1.9 ft./sec.
Road Information
Gravel County Road
Road Condition: Good
Road Width at Culvert: 56 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 3 ft.
Slope: 1:2
Downstream
Fill Depth: 3 ft.
Slope: 1:2
Approaches
Left Approach
Length: 200 ft.
Slope: Less Than 1%
Vegetation: None
LS Factor: 0.06
Erosion: 0.1851 tons/year
Right Approach
Length: 200 ft.
Slope: Less Than 1%
Vegetation: None
LS Factor: 0.06
Erosion: 0.1851 tons/year
Erosion Information
Total Erosion at Crossing: 0.3702 tons/year
Summary Information
Fish Passability 0.9