Road Stream Crossing Site GTBAY_LEE079
West Bay Shoreline & Tributaries Watershed, Unnamed
Cherry Bend Rd
Elmwood Twp,
Leelanau County
Information collected by:
Site Location
GPS Coordinates: 44.8207929
, -85.66798635
T28N
R11W
Sec 17
Owned by Private
Fish Passability 0
Perch Height: 0.15 ft.
Total Erosion: 0.2148 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 53.6 ft.
, Width 2.9 ft.
, Height 3 ft.
Perch Height: 0.15 ft.
Structure Inlet
Water Depth: 0.4 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 4.3 ft./sec.
Structure Outlet
Water Depth: 0.3 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 5.2 ft./sec.
*Water Velocities were measured 0.1 ft. below Surface
(with Meter)
Stream Information
Stream Flow: Less than 1/2 Bankfull
Scour Pool: Length 8.4 ft.
, Width 5.7 ft.
, Depth 0.75 ft.
Riffle Information
Water Depth: 0.2 ft.
Bankfull Width: 10.5 ft.
Wetted Width: 5.5 ft.
Water Velocity: 1.8 ft./sec.
(Measured with Meter)
Dominant Substrate: Sand
Road Information
Paved
County Road
Road Condition: Good
Road Width at Culvert: 34.5 ft.
Location of Low Point: Other
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1.7 ft.
Slope: 1:2
Downstream
Fill Depth: 2.4 ft.
Slope: 1:1
Approaches
Left Approach
Length: 388 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.478
Erosion: 0.2113 tons/year
Right Approach
Length: 25 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0014 tons/year
Erosion Information
Total Erosion at Crossing: 0.2148 tons/year
Extent of Erosion: Minor
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 |
1.4 ft. |
1.2 ft. |
1.3 ft. |
yes |
Sand |
0.002 |
Summary Information
Fish Passability 0