Road Stream Crossing Site PLT-I-17

Platte River Watershed, Kinney Creek
Stanley Rd
Inland Twp, Benzie County
Information collected by:
Site Location
GPS Coordinates: 44.65205 , -85.92111
T26N R13W Sec 18
Owned by State
Structure is NOT Perched
Total Erosion: 0.3802 tons/year
Severity: Restored
Year Inventoried: 2015
Site ID
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 1
Structure Shape: Pipe Arch
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 27 ft. , Width 10 ft. , Height 4 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 1.1 ft.
Embedded Depth of Structure: 2.9 ft.
Water Velocity*: 1 ft./sec.
Structure Outlet
Water Depth: 0.6 ft.
Embedded Depth of Structure: 3.4 ft.
Water Velocity*: 0.5 ft./sec.
*Water Velocities were measured 0.5 ft. below Surface (with Meter)
Additional Comments

CRA assisted with installation in 2012.

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: 0.7 ft.
Bankfull Width: 15 ft.
Wetted Width: 11 ft.
Water Velocity: 1.2 ft./sec. (Measured with Meter)
Dominant Substrate: Gravel
Road Information
Gravel County Road (Seasonal)
Road Condition: Fair
Road Width at Culvert: 10 ft.
Location of Low Point: Other
Runoff Path: Roadway
Fill Depth: 1.7 ft.
Slope: More than 1:2
Fill Depth: 1.7 ft.
Slope: More than 1:2
Left Approach
Length: 300 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.46
Erosion: 0.3802 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: 0.3802 tons/year
Extent of Erosion: Moderate
Summary Information
Erosion is an area of concern for this site.