Road Stream Crossing Site PM_L059
Pere Marquette River Watershed, Sanborn Creek
Broadway Ave
Cherry Valley Twp,
Lake County
Information collected by:
Site Location
GPS Coordinates: 43.90955
, -85.772238
T18N
R12W
Sec 32
Owned by Private
Total Erosion: 2.35 tons/year
Severity: Restored
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: 1
Structure Shape: Open Bottom Arch
Inlet Type: Wingwall 10-30 Degree
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Sand
General Conditions: New
Structure Interior: corrugated
Dimensions of Structure: Length 49.5 ft.
, Width 18.5 ft.
, Height 5.3 ft.
Structure Inlet
Water Depth: 2 ft.
Embedded Depth of Structure: 0.2 ft.
Water Velocity*: 1.5 ft./sec.
Structure Outlet
Water Depth: 1 ft.
Embedded Depth of Structure: 0.2 ft.
Water Velocity*: 2.1 ft./sec.
*Water Velocities were measured 1 ft. below Surface
(with Meter)
Stream Information
Stream Flow: Less than Bankfull
Riffle Information
Water Depth: 1 ft.
Bankfull Width: 10 ft.
Wetted Width: 12 ft.
Water Velocity: 1.1 ft./sec.
(Measured with Meter)
Dominant Substrate: Sand
Road Information
Gravel
County Road
Road Condition: Fair
Road Width at Culvert: 22 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 6 ft.
Slope: 1:1.5
Downstream
Fill Depth: 6 ft.
Slope: 1:1.5
Approaches
Left Approach
Length: 250 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.44
Erosion: 0.6667 tons/year
Right Approach
Length: 300 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.46
Erosion: 0.8364 tons/year
Erosion Information
Total Erosion at Crossing: 2.35 tons/year
Extent of Erosion: Moderate
Erosion is occurring and corrective actions can be installed to address the problem.
Right Approach
300 ft.
22 ft.
0.2 ft.
yes
Sand
0.462
Summary Information
Fish Passage is an area of concern for this site.
With replacing many culverts on Sanborn Creek, this would be a fish passage priority.