Road Stream Crossing Site GTBAY_LEE027
West Bay Shoreline & Tributaries Watershed, Unnamed
Shore Dr
Suttons Bay Twp,
Leelanau County
Information collected by:
Site Location
GPS Coordinates: 44.96775147
, -85.64087341
T30N
R11W
Sec 28
Owned by Private
Fish Passability 0.5
Total Erosion: 0.0551 tons/year
Severity: Moderate
Year Inventoried: 2020
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: Sand
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 37.9 ft.
, Width 2 ft.
, Height 2 ft.
Structure Inlet
Water Depth: 0.5 ft.
Embedded Depth of Structure: 0.2 ft.
Water Velocity*: 2.9 ft./sec.
Structure Outlet
Water Depth: 1.1 ft.
Embedded Depth of Structure: 0.4 ft.
Water Velocity*: 0.5 ft./sec.
*Water Velocities were measured 0.5 ft. below Surface
(with Meter)
Stream Information
Stream Flow: Less than Bankfull
Riffle Information
Water Depth: 0.2 ft.
Bankfull Width: 8 ft.
Wetted Width: 6.1 ft.
Water Velocity: 1.3 ft./sec.
(Measured with Meter)
Dominant Substrate: Gravel
Road Information
Paved
Town Road
Road Condition: Fair
Road Width at Culvert: 20.4 ft.
Location of Low Point: Other
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1.2 ft.
Slope: Less than 1:2
Downstream
Fill Depth: 1.8 ft.
Slope: 1:2
Approaches
Left Approach
Length: 25 ft.
Slope: Less Than 1%
Vegetation: Partial
LS Factor: 0.05
Erosion: 0.0008 tons/year
Right Approach
Length: 175 ft.
Slope: 1% to 5%
Vegetation: Partial
LS Factor: 0.46
Erosion: 0.0543 tons/year
Erosion Information
Total Erosion at Crossing: 0.0551 tons/year
Summary Information
Fish Passability 0.5