Road Stream Crossing Site PLT-P-4
Platte River Watershed, North Branch Platte River
Gudemoos Rd
Platte Twp,
Benzie County
Information collected by:
Site Location
GPS Coordinates: 44.71441
, -86.01999
T27N
R14W
Sec 29
Owned by Private
Structure is NOT Perched
Total Erosion: 0.1749 tons/year
Severity: Restored
Year Inventoried: 2015
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: 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 38 ft.
, Width 10.5 ft.
, Height 7 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 0.9 ft.
Embedded Depth of Structure: 3.3 ft.
Water Velocity*: 2.5 ft./sec.
Structure Outlet
Water Depth: 1.1 ft.
Embedded Depth of Structure: 3.3 ft.
Water Velocity*: 1.6 ft./sec.
*Water Velocities were measured 0.7 ft. below Surface
(with Meter)
Additional Comments
CRA & NRCS assisted with installation August 2015.
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: 13 ft.
Wetted Width: 10 ft.
Water Velocity: 1.5 ft./sec.
(Measured with Meter)
Dominant Substrate: Sand
Road Information
Paved
County Road
Road Condition: Good
Road Width at Culvert: 24 ft.
Location of Low Point: Other
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1.6 ft.
Slope: More than 1:2
Downstream
Fill Depth: 1.6 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 450 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.49
Erosion: 0.1749 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: 0.1749 tons/year
Extent of Erosion: Moderate
Summary Information
Erosion is an area of concern for this site.
No.