Road Stream Crossing Site PM_L017
Pere Marquette River Watershed, Baldwin River
M-37
Pleasant Plains Twp,
Lake County
Information collected by:
Site Location
GPS Coordinates: 43.8855882822522
, -85.8518102020025
T17N
R13W
Sec 10
Owned by Private
Total Erosion: 0.4647 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: Good
Structure Interior: smooth
Dimensions of Structure: Length 46 ft.
, Width 42 ft.
, Height 12 ft.
Structure Inlet
Water Depth: 1.9 ft.
Water Velocity*: 1.7 ft./sec.
Structure Outlet
Water Depth: 1.5 ft.
Water Velocity*: 1.4 ft./sec.
*Water Velocities were measured 1 ft. below Surface
(with Meter)
Stream Information
Stream Flow: Less than Bankfull
Riffle Information
Water Depth: 1.9 ft.
Bankfull Width: 34 ft.
Wetted Width: 31 ft.
Water Velocity: 1.3 ft./sec.
(Measured with Meter)
Dominant Substrate: Organics
Road Information
Paved
State Road
Road Condition: Good
Road Width at Culvert: 44 ft.
Location of Low Point: Other
Runoff Path: Ditch
Slope: Vertical
Slope: Vertical
Approaches
Left Approach
Length: 600 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.52
Erosion: 0.4538 tons/year
Right Approach
Length: 150 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0109 tons/year
Erosion Information
Total Erosion at Crossing: 0.4647 tons/year
Extent of Erosion: Minor
Summary Information
Erosion is an area of concern for this site.