Road Stream Crossing Site PM_L070

Pere Marquette River Watershed, Carr Creek tributary
64th St
Lake Twp, Lake County
Information collected by:
Site Location
GPS Coordinates: 43.87335 , -86.03457
T17N R14W Sec 7
Owned by Private
Fish Passability 0.9
Total Erosion: 0.1344 tons/year
Severity: Moderate
Year Inventoried: 2014
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: Bridge
Structure Shape: Open Bottom Square/Rectangle
Inlet Type: Wingwall 30-70 Degree
Outlet Type: At Stream Grade
Structure Material: Concrete
Structure Substrate: Mixture
General Conditions: Poor
Dimensions of Structure: Length 19 ft. , Width 19 ft. , Height 8 ft.
Structure Inlet
Water Depth: 0.2 ft.
Water Velocity*: 0.4 ft./sec.
Structure Outlet
Water Depth: 0.2 ft.
Water Velocity*: 1 ft./sec.
*Water Velocities were measured at the Surface (with Meter)
Stream Information
Stream Flow: Less than 1/2 Bankfull
Riffle Information
Water Depth: 0.4 ft.
Bankfull Width: 5 ft.
Wetted Width: 2.5 ft.
Water Velocity: 0.5 ft./sec. (Measured with Meter)
Dominant Substrate: Sand
Road Information
Gravel County Road
Road Condition: Fair
Road Width at Culvert: 18 ft.
Location of Low Point: Other
Runoff Path: Ditch
Approaches
Left Approach
Length: 150 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0372 tons/year
Right Approach
Length: 150 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0372 tons/year
Erosion Information
Total Erosion at Crossing: 0.1344 tons/year
Extent of Erosion: Minor
Location of Erosion
Erosion Dimensions
Eroded Material
Material Eroded
Total Erosion
facing downstream
Length
Width
Depth
Reaching Stream?
(tons/year)
Right Approach
150 ft.
1 ft.
0.1 ft.
yes
Gravel
0.015
Left Approach
150 ft.
1 ft.
0.1 ft.
yes
Gravel
0.015
Left Approach
150 ft.
1 ft.
0.1 ft.
yes
Gravel
0.015
Right Approach
150 ft.
1 ft.
0.1 ft.
yes
Gravel
0.015
Summary Information
Fish Passability 0.9
A future visit to this site is recommended. bridge condition