Road Stream Crossing Site MAN_WE_057
Big Manistee River Watershed, Unknown tributary
E. 14 Rd
Greenwood Twp,
Wexford County
Information collected by:
Site Location
GPS Coordinates: 44.42457
, -85.55583
T24N
R10W
Sec 32
Owned by Private
Perch Height: 0.5 ft.
Total Erosion: 1.584 tons/year
Severity: Severe
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: Round
Inlet Type: Projecting
Outlet Type: Freefall into Pool
Structure Material: Concrete
Structure Substrate: None
General Conditions: Fair
Structure Interior: smooth
Dimensions of Structure: Length 48 ft.
, Width 2.4 ft.
, Height 2.4 ft.
Perch Height: 0.5 ft.
Structure Inlet
Water Depth: 0.9 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 2.3 ft./sec.
Structure Outlet
Water Depth: 0.2 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 10.2 ft./sec.
*Water Velocities were measured 0.6 ft. below Surface
(with Meter)
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 14 ft.
, Width 14 ft.
, Depth 2.5 ft.
Upstream Pond: Length 0 ft.
, Width 0 ft.
, Depth 0 ft.
Riffle Information
Water Depth: 0.6 ft.
Bankfull Width: 8.4 ft.
Wetted Width: 4.8 ft.
Water Velocity: 1.1 ft./sec.
(Measured with Meter)
Dominant Substrate: Gravel
Road Information
Gravel
County Road
Road Condition: Good
Road Width at Culvert: 23 ft.
Location of Low Point: Other
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 3.8 ft.
Slope: 1:2
Downstream
Fill Depth: 5 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 0 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0 tons/year
Right Approach
Length: 500 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.5
Erosion: 1.584 tons/year
Erosion Information
Total Erosion at Crossing: 1.584 tons/year
Extent of Erosion: Moderate
Summary Information
Fish Passage is an area of concern for this site.
Yes, fish passage. Outlet of pipe is perched and exiting water velocities are extreme.
A future visit to this site is recommended.
Yes, design plans to replace structure.