Road Stream Crossing Site GTBAY_LEE025

West Bay Shoreline & Tributaries Watershed, Unnamed
S Shore Dr
Suttons Bay Twp, Leelanau County
Information collected by:
Site Location
GPS Coordinates: 44.96634129 , -85.63416646
T30N R11W Sec 28
Owned by Private
Fish Passability 0.9
Total Erosion: 0.0196 tons/year
Severity: Minor
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: Ellipse
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 50.8 ft. , Width 4.7 ft. , Height 3.3 ft.
Structure Inlet
Water Depth: 0.9 ft.
Embedded Depth of Structure: 0.3 ft.
Water Velocity*: 0 ft./sec.
Structure Outlet
Water Depth: 1 ft.
Embedded Depth of Structure: 0.5 ft.
Water Velocity*: 0 ft./sec.
*Water Velocities were measured 0.6 ft. below Surface (with Meter)
Stream Information
Stream Flow: Less than 1/2 Bankfull
Riffle Information
Water Depth: 0.2 ft.
Bankfull Width: 6.5 ft.
Wetted Width: 2.4 ft.
Water Velocity: 1 ft./sec. (Measured with Meter)
Dominant Substrate: Organics
Road Information
Paved Town Road
Road Condition: Fair
Road Width at Culvert: 21 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1.5 ft.
Slope: Less than 1:2
Downstream
Fill Depth: 1.5 ft.
Slope: Less than 1:2
Approaches
Left Approach
Length: 25 ft.
Slope: Less Than 1%
Vegetation: Partial
LS Factor: 0.05
Erosion: 0.0009 tons/year
Right Approach
Length: 75 ft.
Slope: 1% to 5%
Vegetation: Partial
LS Factor: 0.36
Erosion: 0.0187 tons/year
Erosion Information
Total Erosion at Crossing: 0.0196 tons/year
Summary Information
Fish Passability 0.9