Road Stream Crossing Site MAN_WE_039

Big Manistee River Watershed, Manton Creek
N 41 Rd
Cedar Creek Twp, Wexford County
Information collected by:
Site Location
GPS Coordinates: 44.39286 , -85.41817
T23N R9W Sec 17
Owned by Private
Fish Passability 0.5
Structure is NOT Perched
Total Erosion: 1.0033 tons/year
Severity: Moderate
Year Inventoried: 2014
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 2
Structure Shape: Round
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: None
General Conditions: Good
Multiple Culverts/Spans
Culvert/Span
Width
Length
Height
Material
2
3 ft.
40 ft.
30 ft.
Metal
Structure Interior: corrugated
Dimensions of Structure: Length 40 ft. , Width 3 ft. , Height 3 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 0.5 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 2 ft./sec.
Structure Outlet
Water Depth: 0.5 ft.
Embedded Depth of Structure: 0.2 ft.
Water Velocity*: 2 ft./sec.
*Water Velocities were measured at the Surface (with Float Test)
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: 0.6 ft.
Bankfull Width: 10 ft.
Wetted Width: 6.5 ft.
Water Velocity: 1.2 ft./sec. (Measured with Float Test)
Dominant Substrate: Gravel
Road Information
Gravel County Road
Road Condition: Good
Road Width at Culvert: 22 ft.
Location of Low Point: Other
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1.3 ft.
Slope: More than 1:2
Downstream
Fill Depth: 2 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: 350 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.47
Erosion: 0.997 tons/year
Erosion Information
Total Erosion at Crossing: 1.0033 tons/year
Extent of Erosion: Minor
Notes: Minor erosion occuring between the 2 culverts.
Location of Erosion
Erosion Dimensions
Eroded Material
Material Eroded
Total Erosion
facing downstream
Length
Width
Depth
Reaching Stream?
(tons/year)
Left Upstream Embankment
2 ft.
1.1 ft.
3.3 ft.
yes
Sandy Loam
0.0063
Summary Information
Fish Passability 0.5