Road Stream Crossing Site ST127

Sturgeon River Watershed, Unknown
Myrtle Lane
Corwith Twp, Otsego County
Information collected by:
Tip of the Mitt Watershed Council
Site Location
GPS Coordinates: 45.173133 , -84.73475
T32N R03W Sec 18
Owned by Private
Fish Passability 0.5
Structure is NOT Perched
Total Erosion: 6.0081 tons/year
Severity: Severe
Year Inventoried: 2015
Site ID
Inlet
Outlet
Downstream Conditions
Upstream 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: Plastic
Structure Substrate: Sand
General Conditions: Fair
Structure Interior: smooth
Dimensions of Structure: Length 47 ft. , Width 1.4 ft. , Height 1.2 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 0.5 ft.
Embedded Depth of Structure: 0.1 ft.
Water Velocity*: 0.1 ft./sec.
Structure Outlet
Water Depth: 0.15 ft.
Embedded Depth of Structure: 0.1 ft.
Water Velocity*: 0.1 ft./sec.
*Water Velocities were measured at the Surface (with Float Test)
Stream Information
Stream Flow: Less than 1/2 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: 0.1 ft.
Bankfull Width: 3 ft.
Wetted Width: 1.8 ft.
Water Velocity: 0.1 ft./sec. (Measured with Float Test)
Dominant Substrate: Sand
Road Information
Sand County Road
Road Condition: Fair
Road Width at Culvert: 37.5 ft.
Location of Low Point: Other
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1.4 ft.
Slope: Vertical
Downstream
Fill Depth: 1.4 ft.
Slope: 1:1.5
Approaches
Left Approach
Length: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 5.8884 tons/year
Right Approach
Length: 0 ft.
Slope: Less Than 1%
Vegetation: None
LS Factor: 0.05
Erosion: 0 tons/year
Erosion Information
Total Erosion at Crossing: 6.0081 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 Streambank
9 ft.
2.5 ft.
1.9 ft.
yes
Gravel
0.1197
Summary Information
Fish Passability 0.5
A future visit to this site is recommended. Road washout/erosion area