Road Stream Crossing Site GTBAY_LEE028
West Bay Shoreline & Tributaries Watershed, Leo Creek
S Shore Dr
Suttons Bay Twp,
Leelanau County
Information collected by:
Site Location
GPS Coordinates: 44.96817199
, -85.6438468
T30N
R11W
Sec 28
Owned by Private
Fish Passability 0
Total Erosion: 0.3654 tons/year
Severity: Severe
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: Wingwall 10-30 Degree
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Good
Dimensions of Structure: Length 44 ft.
, Width 3.8 ft.
, Height 3.8 ft.
Structure Inlet
Water Depth: 1.1 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 4 ft./sec.
Structure Outlet
Water Depth: 1.4 ft.
Embedded Depth of Structure: 0.1 ft.
Water Velocity*: 0.8 ft./sec.
*Water Velocities were measured 1.2 ft. below Surface
(with Meter)
Stream Information
Stream Flow: Less than Bankfull
Riffle Information
Water Depth: 1 ft.
Bankfull Width: 11.1 ft.
Wetted Width: 8.5 ft.
Water Velocity: 1.1 ft./sec.
Dominant Substrate: Sand
Road Information
Paved
Town Road
Road Condition: Fair
Road Width at Culvert: 20.5 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 2.55 ft.
Slope: 1:1
Downstream
Fill Depth: 2.5 ft.
Slope: 1:1.5
Approaches
Left Approach
Length: 617 ft.
Slope: 1% to 5%
Vegetation: Partial
LS Factor: 0.686
Erosion: 0.2868 tons/year
Right Approach
Length: 230 ft.
Slope: 1% to 5%
Vegetation: Partial
LS Factor: 0.504
Erosion: 0.0786 tons/year
Erosion Information
Total Erosion at Crossing: 0.3654 tons/year
Summary Information
Fish Passability 0