Road Stream Crossing Site P120
Pine River Watershed, Unknown (tributary to Silver Creek)
Skookum Rd
Dover Twp,
Lake County
Information collected by:
Site Location
GPS Coordinates: 44.1195
, -85.64394
T20N
R11W
Sec 17
Owned by Private
Perch Height: 1.7 ft.
Total Erosion: 2.1649 tons/year
Severity: Severe
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: Freefall into Pool
Structure Material: Metal
Structure Substrate: None
General Conditions: Fair
Structure Interior: corrugated
Structure is Rusted through
Dimensions of Structure: Length 44 ft.
, Width 1.3 ft.
, Height 1.3 ft.
Perch Height: 1.7 ft.
Structure Inlet
Water Depth: 0.4 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.2 ft./sec.
Structure Outlet
Water Depth: 0.1 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 2 ft./sec.
*Water Velocities were measured 0.1 ft. below Surface
(with Meter)
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 6 ft.
, Width 4 ft.
, Depth 0.7 ft.
Upstream Pond: Length 0 ft.
, Width 0 ft.
, Depth 0 ft.
Riffle Information
Water Depth: 0.1 ft.
Bankfull Width: 3 ft.
Wetted Width: 2 ft.
Water Velocity: 0.7 ft./sec.
(Measured with Meter)
Dominant Substrate: Sand
Road Information
Gravel
County Road
Road Condition: Good
Road Width at Culvert: 19 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1.7 ft.
Slope: More than 1:2
Downstream
Fill Depth: 2.1 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 525 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.505
Erosion: 1.3877 tons/year
Right Approach
Length: 320 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.464
Erosion: 0.7772 tons/year
Erosion Information
Total Erosion at Crossing: 2.1649 tons/year
Extent of Erosion: Moderate
Summary Information
Erosion is an area of concern for this site.