Road Stream Crossing Site GTBAY_LEE016
West Bay Shoreline & Tributaries Watershed, Belanger's Creek
Roubal
Suttons Bay Twp,
Leelanau County
Information collected by:
Site Location
GPS Coordinates: 45.03979996
, -85.62872568
T30N
R11W
Sec 03
Owned by Private
Fish Passability 0
Total Erosion: 0.0601 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: Projecting
Outlet Type: Cascade over Riprap
Structure Material: Metal
Structure Substrate: Rock
General Conditions: New
Structure Interior: corrugated
Dimensions of Structure: Length 50.5 ft.
, Width 4.6 ft.
, Height 3.8 ft.
Structure Inlet
Water Depth: 0.5 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 3.1 ft./sec.
Structure Outlet
Water Depth: 0.3 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 4.8 ft./sec.
*Water Velocities were measured 0.15 ft. below Surface
(with Meter)
Stream Information
Stream Flow: Less than 1/2 Bankfull
Upstream Pond: Length 13.2 ft.
, Width 10.6 ft.
, Depth 0.7 ft.
Riffle Information
Water Depth: 0.1 ft.
Bankfull Width: 17.8 ft.
Wetted Width: 12.3 ft.
Water Velocity: 2 ft./sec.
(Measured with Meter)
Dominant Substrate: Gravel
Road Information
Paved
Town Road
Road Condition: Fair
Road Width at Culvert: 18.8 ft.
Location of Low Point: Other
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 1.6 ft.
Slope: Less than 1:2
Downstream
Fill Depth: 1.9 ft.
Slope: Less than 1:2
Approaches
Left Approach
Length: 220 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.434
Erosion: 0.0593 tons/year
Right Approach
Length: 25 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0008 tons/year
Erosion Information
Total Erosion at Crossing: 0.0601 tons/year
Summary Information
Fish Passability 0