Road Stream Crossing Site MAN_WE_118
Big Manistee River Watershed, Unknown (tributary to Manistee River)
27 1/2 Rd
Greenwood Twp,
Wexford County
Information collected by:
Site Location
GPS Coordinates: 44.50087
, -85.54631
T24N
R10W
Sec 5
Owned by Private
Structure is NOT Perched
Total Erosion: 0.775 tons/year
Severity: Moderate
Year Inventoried: 2014
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Erosion
Erosion
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 1
Structure Shape: Round
Inlet Type: Other
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Poor
Structure Interior: smooth
Dimensions of Structure: Length 20 ft.
, Width 3.6 ft.
, Height 3.6 ft.
Percentage Plugged:
Inlet: 26% to 50%
Outlet: 0%
In Pipe: 0%
Structure is NOT Perched
Structure Inlet
Water Depth: 0.5 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.7 ft./sec.
Structure Outlet
Water Depth: 0.7 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.6 ft./sec.
*Water Velocities were measured 0.2 ft. below Surface
(with Meter)
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: 0.4 ft.
Bankfull Width: 3.6 ft.
Wetted Width: 2.5 ft.
Water Velocity: 1 ft./sec.
(Measured with Meter)
Dominant Substrate: Gravel
Road Information
Sand
County Road
(Seasonal)
Road Condition: Fair
Road Width at Culvert: 12 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 3.5 ft.
Slope: More than 1:2
Downstream
Fill Depth: 3 ft.
Slope: Vertical
Approaches
Left Approach
Length: 345 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.469
Erosion: 0.5349 tons/year
Right Approach
Length: 175 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.415
Erosion: 0.2401 tons/year
Erosion Information
Total Erosion at Crossing: 0.775 tons/year
Extent of Erosion: Moderate
Summary Information
Erosion is an area of concern for this site.
No, little traffic.
A future visit to this site is recommended.
Yes, possibly if road is used more.