Road Stream Crossing Site GTBAY_LEE088
West Bay Shoreline & Tributaries Watershed, Unnamed
Paradise Dr
Elmwood Twp,
Leelanau County
Information collected by:
Site Location
GPS Coordinates: 44.79471613
, -85.65331986
T28N
R11W
Sec 28
Owned by Private
Perch Height: 0.2 ft.
Total Erosion: 2.519 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: Freefall into Pool
Structure Material: Metal
Structure Substrate: None
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 67.5 ft.
, Width 1.6 ft.
, Height 1.6 ft.
Perch Height: 0.2 ft.
Structure Inlet
Water Depth: 0.9 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 3.1 ft./sec.
Structure Outlet
Water Depth: 0.35 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 10.2 ft./sec.
*Water Velocities were measured 0.15 ft. below Surface
(with Meter)
Stream Information
Stream Flow: Less than 1/2 Bankfull
Scour Pool: Length 9.1 ft.
, Width 12.8 ft.
, Depth 1.4 ft.
Upstream Pond: Length 11.2 ft.
, Width 28.8 ft.
, Depth 0.7 ft.
Riffle Information
Water Depth: 0.2 ft.
Bankfull Width: 7.5 ft.
Wetted Width: 4.9 ft.
Water Velocity: 5.1 ft./sec.
(Measured with Meter)
Dominant Substrate: Gravel
Road Information
Gravel
Private Road
Road Condition: Good
Road Width at Culvert: 21.1 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 4.25 ft.
Slope: 1:2
Downstream
Fill Depth: 3.9 ft.
Slope: 1:2
Approaches
Left Approach
Length: 333.3 ft.
Slope: 1% to 5%
Vegetation: Partial
LS Factor: 0.567
Erosion: 1.0978 tons/year
Right Approach
Length: 405.9 ft.
Slope: 1% to 5%
Vegetation: Partial
LS Factor: 0.602
Erosion: 1.4212 tons/year
Erosion Information
Total Erosion at Crossing: 2.519 tons/year
Extent of Erosion: Moderate
Summary Information
Fish Passage is an area of concern for this site.
Freefall