Road Stream Crossing Site PLT-I-15

Platte River Watershed, Brundage Creek
North Carmean Rd
Inland Twp, Benzie County
Information collected by:
Site Location
GPS Coordinates: 44.65176 , -85.91903
T26 R13 Sec 18
Owned by State
Structure is NOT Perched
Severity: Restored
Year Inventoried: 2021
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: culvert(s)
Structure Shape: Pipe Arch
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Mixture
General Conditions: New
Structure Interior: corrugated
Dimensions of Structure: Length 46 ft. , Width 9.7 ft. , Height 6.6 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 1 ft.
Embedded Depth of Structure: 0.7 ft.
Water Velocity*: 1.3 ft./sec.
Structure Outlet
Water Depth: 0.9 ft.
Embedded Depth of Structure: 1.4 ft.
Water Velocity*: 0.4 ft./sec.
*Water Velocities were measured 0.8 ft. below Surface (with Meter)
Additional Comments

single culvert

Stream Information
Stream Flow: Less than 1/2 Bankfull
Riffle Information
Water Depth: 0.4 ft.
Bankfull Width: 13.6 ft.
Wetted Width: 12.7 ft.
Water Velocity: 1 ft./sec. (Measured with Meter)
Dominant Substrate: Sand
Road Information
Gravel County Road
Road Condition: Fair
Road Width at Culvert: 15 ft.
Location of Low Point: Other
Runoff Path: Ditch
Fill Depth: 3.7 ft.
Slope: More than 1:2
Fill Depth: 5.1 ft.
Slope: More than 1:2
Left Approach
Length: 25 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0052 tons/year
Right Approach
Length: 500 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.5
Erosion: 1.0331 tons/year
Erosion Information
Extent of Erosion: Stabilized
Summary Information
These non-native species were observerd at this site: Queen Anne's Lace