Road Stream Crossing Site GTBAY_LEE116
West Bay Shoreline & Tributaries Watershed, Unnamed
Schooner Drive
Elmwood Twp,
Leelanau County
Information collected by:
Site Location
GPS Coordinates: 44.78966335
, -85.64002524
T28N
R11W
Sec 33
Owned by Private
Fish Passability 0.5
Total Erosion: 0.2057 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: Ellipse
Inlet Type: Wingwall 10-30 Degree
Outlet Type: Outlet Apron
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Fair
Structure Interior: corrugated
Dimensions of Structure: Length 63.8 ft.
, Width 3.1 ft.
, Height 2.1 ft.
Percentage Crushed:
In Pipe: 26% to 50%
Structure Inlet
Water Depth: 0.6 ft.
Embedded Depth of Structure: 0.4 ft.
Water Velocity*: 3 ft./sec.
Structure Outlet
Water Depth: 1.1 ft.
Embedded Depth of Structure: 0.7 ft.
Water Velocity*: 1.9 ft./sec.
*Water Velocities were measured 0.9 ft. below Surface
(with Meter)
Stream Information
Stream Flow: Less than 1/2 Bankfull
Riffle Information
Water Depth: 0.9 ft.
Bankfull Width: 5.9 ft.
Wetted Width: 4 ft.
Water Velocity: 2.2 ft./sec.
(Measured with Meter)
Dominant Substrate: Sand
Road Information
Paved
Private Road
Road Condition: Fair
Road Width at Culvert: 41.6 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 1.8 ft.
Slope: Less than 1:2
Downstream
Fill Depth: 1.8 ft.
Slope: 1:2
Approaches
Left Approach
Length: 36 ft.
Slope: 1% to 5%
Vegetation: Partial
LS Factor: 0.281
Erosion: 0.0139 tons/year
Right Approach
Length: 264 ft.
Slope: 1% to 5%
Vegetation: Partial
LS Factor: 0.528
Erosion: 0.1918 tons/year
Erosion Information
Total Erosion at Crossing: 0.2057 tons/year
Summary Information
Fish Passability 0.5
These non-native species were observerd at this site: Queen Anne's Lace, Purple Loosestrife