Road Stream Crossing Site GTBAY_LEE104
West Bay Shoreline & Tributaries Watershed, Ennis Creek
Across from Lee Mann Rd
Leelanau Twp,
Leelanau County
Information collected by:
Site Location
GPS Coordinates: 45.09799216
, -85.60673744
T31N
R11W
Sec 11
Owned by Private
Fish Passability 0
Perch Height: 0.2 ft.
Severity: Severe
Year Inventoried: 2020
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 2
Structure Shape: Ellipse
Inlet Type: Projecting
Outlet Type: Freefall into Pool
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Fair
Multiple Culverts/Spans | ||||
Culvert/Span | Width | Length | Height | Material |
1 |
3.6 ft. |
39.4 ft. |
2.45 ft. |
Metal |
2 |
3.5 ft. |
23.3 ft. |
2.4 ft. |
Metal |
Structure Interior: corrugated
Perch Height: 0.2 ft.
Structure Inlet
Water Depth: 0.35 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 3 ft./sec.
Structure Outlet
Water Depth: 0.25 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 3.8 ft./sec.
*Water Velocities were measured 0.13 ft. below Surface
(with Meter)
Additional Comments
Bank owned development
Stream Information
Stream Flow: Less than 1/2 Bankfull
Scour Pool: Length 5 ft.
, Width 10.4 ft.
, Depth 0.9 ft.
Upstream Pond: Length 8.8 ft.
, Width 9 ft.
, Depth 0.8 ft.
Riffle Information
Water Depth: 0.15 ft.
Bankfull Width: 11.3 ft.
Wetted Width: 7.1 ft.
Water Velocity: 3.2 ft./sec.
(Measured with Meter)
Dominant Substrate: Gravel
Road Information
Gravel
Private Road
Road Condition: Fair
Location of Low Point: Other
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 2 ft.
Slope: Less than 1:2
Downstream
Fill Depth: 1.7 ft.
Slope: Less than 1:2
Length: 62.7 ft.
Slope: 1% to 5%
Vegetation: Heavy
Length: 32 ft.
Slope: 1% to 5%
Vegetation: Heavy
Erosion Information
Extent of Erosion: Moderate
Erosion is occurring and corrective actions can be installed to address the problem.
Location of Erosion | Erosion Dimensions | Eroded Material | Material Eroded | Total Erosion | ||
facing downstream | Length | Width | Depth | Reaching Stream? | (tons/year) | |
Right Upstream Embankment |
3.8 ft. |
3.4 ft. |
2.6 ft. |
yes |
Sandy Loam |
0.0664 |
Left Upstream Embankment |
1.6 ft. |
2.3 ft. |
0.6 ft. |
yes |
Sandy Loam |
0.0065 |
Right Upstream Embankment |
1.2 ft. |
1.5 ft. |
1.7 ft. |
yes |
Sandy Loam |
0.0137 |
Right Downstream Embankment |
3.3 ft. |
10.4 ft. |
3.3 ft. |
yes |
Sandy Loam |
0.0732 |
Summary Information
Fish Passability 0