Road Stream Crossing Site PM_L023

Pere Marquette River Watershed, North Branch Cole Creek
24th St
Cherry Valley twp, Lake County
Information collected by:
Site Location
GPS Coordinates: 43.944322 , -85.767066
T18N R12W Sec 20
Owned by Private
Fish Passability 0
Perch Height: 0.5 ft.
Total Erosion: 0.8969 tons/year
Severity: Severe
Year Inventoried: 2014
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 3
Structure Shape: Round
Inlet Type: Projecting
Outlet Type: Cascade over Riprap
Structure Material: Metal
Structure Substrate: None
General Conditions: Good
Multiple Culverts/Spans
Culvert/Span
Width
Length
Height
Material
1
2.5 ft.
30 ft.
2.5 ft.
Metal
2
3 ft.
30 ft.
3 ft.
Metal
3
2.5 ft.
30 ft.
2.5 ft.
Metal
Structure Interior: corrugated
Perch Height: 0.5 ft.
Structure Inlet
Water Depth: 0.5 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.9 ft./sec.
Structure Outlet
Water Depth: 0.5 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 3 ft./sec.
*Water Velocities were measured 0.5 ft. below Surface (with Meter)
Additional Comments
Adjacent to conservation easement property.
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 20 ft. , Width 20 ft. , Depth 2.5 ft.
Riffle Information
Water Depth: 0.6 ft.
Bankfull Width: 22 ft.
Wetted Width: 18 ft.
Water Velocity: 0.4 ft./sec. (Measured with Meter)
Dominant Substrate: Gravel
Road Information
Gravel County Road
Road Condition: Good
Road Width at Culvert: 18 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 1.5 ft.
Slope: 1:1
Downstream
Fill Depth: 1.7 ft.
Slope: 1:1
Approaches
Left Approach
Length: 200 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.43
Erosion: 0.4264 tons/year
Right Approach
Length: 200 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.43
Erosion: 0.4264 tons/year
Erosion Information
Total Erosion at Crossing: 0.8969 tons/year
Extent of Erosion: Minor
Erosion is occurring and corrective actions can be installed to address the problem.
Notes: Needs approaches paved.
Location of Erosion
Erosion Dimensions
Eroded Material
Material Eroded
Total Erosion
facing downstream
Length
Width
Depth
Reaching Stream?
(tons/year)
Left Approach
200 ft.
17 ft.
0.1 ft.
yes
Sand
0.022
Right Approach
200 ft.
17 ft.
0.1 ft.
yes
Sand
0.022
Summary Information
Fish Passability 0
Fish Passage is an area of concern for this site. Multiple perched culverts.