Road Stream Crossing Site MAN_WE_007
Big Manistee River Watershed, Seaton Creek
3 1/4 Rd
Springville Twp,
Wexford County
Information collected by:
Site Location
GPS Coordinates: 44.34993
, -85.79241
T23N
R12W
Sec 32
Owned by Private
Perch Height: 0.4 ft.
Total Erosion: 0.1514 tons/year
Severity: Severe
Year Inventoried: 2014
Site ID
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: Headwall
Outlet Type: Freefall into Pool
Structure Material: Metal
Structure Substrate: None
General Conditions: Fair
Structure Interior: corrugated
Dimensions of Structure: Length 30 ft.
, Width 5.3 ft.
, Height 3.6 ft.
Perch Height: 0.4 ft.
Structure Inlet
Water Depth: 1.2 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 2 ft./sec.
Structure Outlet
Water Depth: 2.3 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 6.9 ft./sec.
*Water Velocities were measured 0.4 ft. below Surface
(with Meter)
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 42 ft.
, Width 24 ft.
, Depth 6 ft.
Upstream Pond: Length 0 ft.
, Width 0 ft.
, Depth 0 ft.
Riffle Information
Water Depth: 0.4 ft.
Bankfull Width: 11.3 ft.
Wetted Width: 10.6 ft.
Water Velocity: 2.3 ft./sec.
(Measured with Meter)
Dominant Substrate: Gravel
Road Information
Gravel
County Road
Road Condition: Fair
Road Width at Culvert: 16 ft.
Location of Low Point: Other
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 1 ft.
Slope: More than 1:2
Downstream
Fill Depth: 1 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: 65 ft.
Slope: 1% to 5%
Vegetation: Partial
LS Factor: 0.344
Erosion: 0.0986 tons/year
Erosion Information
Total Erosion at Crossing: 0.1514 tons/year
Extent of Erosion: Minor
Location of Erosion | Erosion Dimensions | Eroded Material | Material Eroded | Total Erosion | ||
facing downstream | Length | Width | Depth | Reaching Stream? | (tons/year) | |
Right Downstream Streambank |
40 ft. |
1 ft. |
1 ft. |
yes |
Sandy Loam |
0.0384 |
Left Downstream Streambank |
15 ft. |
1.5 ft. |
1 ft. |
yes |
Sandy Loam |
0.0144 |
Summary Information
Erosion is an area of concern for this site.