Road Stream Crossing Site PM_M015

Pere Marquette River Watershed, Carr Creek
Tyndall Rd
Logan Twp, Mason County
Information collected by:
Site Location
GPS Coordinates: 43.8591 , -86.03865
T17N R15W Sec 13
Owned by Private
Total Erosion: 0.7946 tons/year
Severity: Restored
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: Mitered
Outlet Type: Outlet Apron
Structure Material: Metal
Structure Substrate: Mixture
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 50 ft. , Width 4.5 ft. , Height 3.5 ft.
Structure Inlet
Water Depth: 1.2 ft.
Water Velocity*: 1.4 ft./sec.
Structure Outlet
Water Depth: 1.2 ft.
Water Velocity*: 0.7 ft./sec.
*Water Velocities were measured 0.5 ft. below Surface (with Meter)
Additional Comments

Creek clogged with aquatic plants.

Stream Information
Stream Flow: Less than Bankfull
Riffle Information
Water Depth: 1.1 ft.
Bankfull Width: 5 ft.
Wetted Width: 4 ft.
Water Velocity: 1.5 ft./sec. (Measured with Meter)
Dominant Substrate: Sand
Road Information
Gravel County Road
Road Condition: Good
Road Width at Culvert: 19 ft.
Location of Low Point: Other
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 1.5 ft.
Slope: More than 1:2
Downstream
Fill Depth: 1.5 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 150 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0393 tons/year
Right Approach
Length: 300 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.46
Erosion: 0.7223 tons/year
Erosion Information
Total Erosion at Crossing: 0.7946 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 Approach
300 ft.
1 ft.
0.1 ft.
yes
Sand
0.033
Summary Information
Erosion is an area of concern for this site.