Road Stream Crossing Site GTBAY_LEE100
West Bay Shoreline & Tributaries Watershed, Unnamed
N West Bayshore Drive
Leelanau Twp,
Leelanau County
Information collected by:
Site Location
GPS Coordinates: 45.11349944
, -85.61730241
T31N
R11W
Sec 10
Owned by Private
Fish Passability 0.5
Total Erosion: 0.5896 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: Apron
Outlet Type: At Stream Grade
Structure Material: Concrete
Structure Substrate: None
General Conditions: New
Structure Interior: smooth
Dimensions of Structure: Length 100.3 ft.
, Width 2.5 ft.
, Height 2.6 ft.
Structure Inlet
Water Depth: 0.05 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1 ft./sec.
Structure Outlet
Water Depth: 0.25 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.7 ft./sec.
*Water Velocities were measured 0.125 ft. below Surface
(with Meter)
Stream Information
Stream Flow: Less than 1/2 Bankfull
Riffle Information
Water Depth: 0.1 ft.
Bankfull Width: 14.6 ft.
Wetted Width: 2.6 ft.
Water Velocity: 1 ft./sec.
(Measured with Meter)
Dominant Substrate: Gravel
Road Information
Paved
State Road
Road Condition: Good
Road Width at Culvert: 37.8 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 2.8 ft.
Slope: Less than 1:2
Downstream
Fill Depth: 4.1 ft.
Slope: Less than 1:2
Approaches
Left Approach
Length: 204.8 ft.
Slope: 1% to 5%
Vegetation: Partial
LS Factor: 0.484
Erosion: 0.1238 tons/year
Right Approach
Length: 561 ft.
Slope: 1% to 5%
Vegetation: Partial
LS Factor: 0.664
Erosion: 0.4658 tons/year
Erosion Information
Total Erosion at Crossing: 0.5896 tons/year
Summary Information
Fish Passability 0.5
These non-native species were observerd at this site: Eurasian Water Milfoil