Road Stream Crossing Site PM_L026
Pere Marquette River Watershed, Baldwin River
40th St
Webber Twp,
Lake County
Information collected by:
Site Location
GPS Coordinates: 43.91521
, -85.81716
T18N
R13W
Sec 25
Owned by Private
Structure is NOT Perched
Total Erosion: 0.186 tons/year
Severity: Restored
Year Inventoried: 2015
Site ID
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: Other
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Mixture
General Conditions: Fair
Structure Interior: corrugated
Dimensions of Structure: Length 21 ft.
, Width 37 ft.
, Height 5.8 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 2.2 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.2 ft./sec.
Structure Outlet
Water Depth: 2 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.2 ft./sec.
*Water Velocities were measured 1.5 ft. below Surface
(with Meter)
Additional Comments
CRA added paving, curbing, rock, and spillways.
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 0 ft.
, Width 0 ft.
, Depth 0 ft.
Upstream Pond: Length 0 ft.
, Width 0 ft.
, Depth 0 ft.
Riffle Information
Water Depth: 1.3 ft.
Bankfull Width: 40 ft.
Wetted Width: 35 ft.
Water Velocity: 1.5 ft./sec.
(Measured with Meter)
Dominant Substrate: Gravel
Road Information
Paved
County Road
Road Condition: Good
Road Width at Culvert: 19 ft.
Location of Low Point: Other
Runoff Path: Roadway
Fill Depth: 0 ft.
Slope: Vertical
Fill Depth: 0 ft.
Slope: Vertical
Approaches
Left Approach
Length: 575 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.515
Erosion: 0.186 tons/year
Right Approach
Length: 0 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0 tons/year
Erosion Information
Total Erosion at Crossing: 0.186 tons/year
Extent of Erosion: Moderate
Summary Information
Erosion is an area of concern for this site.
No.