Road Stream Crossing Site PM_M031

Pere Marquette River Watershed, Weldon Creek
Campbell Rd
Branch Twp, Mason County
Information collected by:
Site Location
GPS Coordinates: 43.96239 , -86.09912
T18N R15W Sec 10
Owned by Private
Total Erosion: 0.202 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: 1
Structure Shape: Pipe Arch
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Mixture
General Conditions: New
Structure Interior: corrugated
Dimensions of Structure: Length 52 ft. , Width 6 ft. , Height 5 ft.
Structure Inlet
Water Depth: 1.6 ft.
Embedded Depth of Structure: 0.1 ft.
Water Velocity*: 0.6 ft./sec.
Structure Outlet
Water Depth: 2 ft.
Water Velocity*: 0.3 ft./sec.
*Water Velocities were measured 1 ft. below Surface (with Meter)
Stream Information
Stream Flow: Less than 1/2 Bankfull
Scour Pool: Length 40 ft. , Width 40 ft. , Depth 3 ft.
Riffle Information
Water Depth: 0.4 ft.
Bankfull Width: 12 ft.
Wetted Width: 10 ft.
Water Velocity: 0.4 ft./sec. (Measured with Meter)
Dominant Substrate: Gravel
Road Information
Paved County Road
Road Condition: Good
Road Width at Culvert: 22 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 2 ft.
Slope: 1:2
Downstream
Fill Depth: 2.5 ft.
Slope: 1:2
Approaches
Left Approach
Length: 300 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.46
Erosion: 0.1004 tons/year
Right Approach
Length: 300 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.46
Erosion: 0.1004 tons/year
Erosion Information
Total Erosion at Crossing: 0.202 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 Embankment
15 ft.
2 ft.
0.1 ft.
yes
Loam
0.0013
Summary Information
Erosion is an area of concern for this site.
These non-native species were observerd at this site: Knapweed