Road Stream Crossing Site PM_L030
Pere Marquette River Watershed, Baldwin River tributary
North Ave
Webber Twp,
Lake County
Information collected by:
Site Location
GPS Coordinates: 43.9033801453438
, -85.8303793519735
T18N
R13W
Sec 35
Owned by Private
Total Erosion: 0.9661 tons/year
Severity: Moderate
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: Round
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Mixture
General Conditions: New
Structure Interior: corrugated
Dimensions of Structure: Length 42 ft.
, Width 4 ft.
, Height 4 ft.
Structure Inlet
Water Depth: 0.4 ft.
Embedded Depth of Structure: 0.3 ft.
Water Velocity*: 2 ft./sec.
Structure Outlet
Water Depth: 1 ft.
Embedded Depth of Structure: 0.1 ft.
Water Velocity*: 1.1 ft./sec.
*Water Velocities were measured at the Surface
(with Meter)
Stream Information
Stream Flow: Less than 1/2 Bankfull
Riffle Information
Water Depth: 0.3 ft.
Bankfull Width: 31 ft.
Wetted Width: 11 ft.
Water Velocity: 1.5 ft./sec.
(Measured with Meter)
Dominant Substrate: Gravel
Road Information
Gravel
County Road
Road Condition: Fair
Road Width at Culvert: 19 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 1.5 ft.
Slope: 1:1.5
Downstream
Fill Depth: 2.5 ft.
Slope: 1:1.5
Approaches
Left Approach
Length: 65 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 0.856
Erosion: 0.2912 tons/year
Right Approach
Length: 120 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 1.042
Erosion: 0.6545 tons/year
Erosion Information
Total Erosion at Crossing: 0.9661 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 |
120 ft. |
19 ft. |
0.1 ft. |
yes |
Sand |
0.0132 |
Summary Information
Erosion is an area of concern for this site.