Road Stream Crossing Site MAN_WE_008

Big Manistee River Watershed, Tar Creek
3 1/4 Rd
Springville Twp, Wexford County
Information collected by:
Site Location
GPS Coordinates: 44.35941 , -85.79327
T23N R12W Sec 29
Owned by Federal
Private
Fish Passability 0.5
Structure is NOT Perched
Total Erosion: 0.4472 tons/year
Severity: Moderate
Year Inventoried: 2014
Site ID
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: At Stream Grade
Structure Material: Metal
Structure Substrate: None
General Conditions: Poor
Structure Interior: corrugated
Dimensions of Structure: Length 40 ft. , Width 2 ft. , Height 2 ft.
Percentage Plugged: Inlet: 26% to 50% Outlet: 0% In Pipe: 0%
Structure is NOT Perched
Structure Inlet
Water Depth: 0.7 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.4 ft./sec.
Structure Outlet
Water Depth: 0.9 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 2.2 ft./sec.
*Water Velocities were measured 0.3 ft. below Surface (with Meter)
Additional Comments
Previous washout site (2 in last 5 years).
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 20.5 ft. , Width 13 ft. , Depth 2.7 ft.
Upstream Pond: Length 200 ft. , Width 80 ft. , Depth 4 ft.
Riffle Information
Water Depth: 0.2 ft.
Bankfull Width: 15 ft.
Wetted Width: 6.5 ft.
Water Velocity: 0.8 ft./sec. (Measured with Meter)
Dominant Substrate: Gravel
Road Information
Gravel County Road
Road Condition: Fair
Road Width at Culvert: 17 ft.
Location of Low Point: Other
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 2.4 ft.
Slope: More than 1:2
Downstream
Fill Depth: 3.2 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 220 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.434
Erosion: 0.4472 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: 0.4472 tons/year
Summary Information
Fish Passability 0.5
Erosion is an area of concern for this site. Yes, 2 road washouts in the last 5 years.
A future visit to this site is recommended. Yes, previous road washout, monitor future conditions.