Road Stream Crossing Site MAN_WE_070
Big Manistee River Watershed, Unknown (tributary to Buttermilk Creek)
12 Rd
Liberty Twp,
Wexford County
Information collected by:
Site Location
GPS Coordinates: 44.4397
, -85.43948
T24N
R9W
Sec 30
Owned by State
Fish Passability 0
Perch Height: 0.2 ft.
Total Erosion: 2.4883 tons/year
Severity: Severe
Year Inventoried: 2014
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Erosion
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 1
Structure Shape: Ellipse
Inlet Type: Projecting
Outlet Type: Freefall into Pool
Structure Material: Metal
Structure Substrate: None
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 41 ft.
, Width 4.3 ft.
, Height 2.8 ft.
Perch Height: 0.2 ft.
Structure Inlet
Water Depth: 1.2 ft.
Embedded Depth of Structure: 0.2 ft.
Water Velocity*: 1.7 ft./sec.
Structure Outlet
Water Depth: 1.7 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 6 ft./sec.
*Water Velocities were measured 0.8 ft. below Surface
(with Meter)
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 42 ft.
, Width 20 ft.
, Depth 3.7 ft.
Upstream Pond: Length 0 ft.
, Width 0 ft.
, Depth 0 ft.
Riffle Information
Water Depth: 0.6 ft.
Bankfull Width: 13 ft.
Wetted Width: 11.5 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: 22 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1.5 ft.
Slope: More than 1:2
Downstream
Fill Depth: 1.3 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 370 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.474
Erosion: 1.0629 tons/year
Right Approach
Length: 130 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.392
Erosion: 0.3088 tons/year
Erosion Information
Total Erosion at Crossing: 2.4883 tons/year
Extent of Erosion: Moderate
Erosion is occurring and corrective actions can be installed to address the problem.
Location of Erosion | Erosion Dimensions | Eroded Material | Material Eroded | Total Erosion | ||
facing downstream | Length | Width | Depth | Reaching Stream? | (tons/year) | |
Left Upstream Embankment |
8 ft. |
4 ft. |
3.5 ft. |
yes |
Gravelly Loam |
0.196 |
Right Downstream Streambank |
30 ft. |
1.5 ft. |
2 ft. |
yes |
Gravelly Loam |
0.42 |
Left Downstream Streambank |
25 ft. |
1.5 ft. |
2 ft. |
yes |
Gravelly Loam |
0.35 |
Right Downstream Embankment |
4 ft. |
3 ft. |
3.5 ft. |
yes |
Gravelly Loam |
0.098 |
Left Downstream Embankment |
2.5 ft. |
3 ft. |
3 ft. |
yes |
Gravelly Loam |
0.0525 |
Summary Information
Fish Passability 0
Erosion is an area of concern for this site.
Yes, erosion noted.
A future visit to this site is recommended. Yes, to monitor erosion.