Road Stream Crossing Site PM_N053

Pere Marquette River Watershed, Triple Lakes Creek
13 Mile Rd
Troy Twp, Newaygo County
Information collected by:
Site Location
GPS Coordinates: 43.7420127234996 , -85.9369254112244
T16N R14W Sec 36
Owned by Private
Total Erosion: 0.3029 tons/year
Severity: Moderate
Year Inventoried: 2014
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 2
Structure Shape: Pipe Arch
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 60 ft. , Width 5 ft. , Height 3 ft.
Structure Inlet
Water Depth: 1.6 ft.
Embedded Depth of Structure: 1.2 ft.
Water Velocity*: 0.9 ft./sec.
Structure Outlet
Water Depth: 1.1 ft.
Embedded Depth of Structure: 1 ft.
Water Velocity*: 1.1 ft./sec.
*Water Velocities were measured 1.5 ft. below Surface (with Meter)
Additional Comments

Undersized culverts with large sand build-up.

Stream Information
Stream Flow: More than Bankfull
Riffle Information
Water Depth: 1.4 ft.
Bankfull Width: 11 ft.
Wetted Width: 12 ft.
Water Velocity: 1.2 ft./sec. (Measured with Meter)
Dominant Substrate: Sand
Road Information
Paved County Road
Road Condition: Good
Road Width at Culvert: 22 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Fill Depth: 2.1 ft.
Slope: More than 1:2
Fill Depth: 1.6 ft.
Slope: More than 1:2
Left Approach
Length: 300 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.46
Erosion: 0.1004 tons/year
Right Approach
Length: 180 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.418
Erosion: 0.0547 tons/year
Erosion Information
Total Erosion at Crossing: 0.3029 tons/year
Extent of Erosion: Moderate
Location of Erosion
Erosion Dimensions
Eroded Material
Material Eroded
Total Erosion
facing downstream
Reaching Stream?
Left Upstream Streambank
12 ft.
2 ft.
1 ft.
Sandy Loam
Right Upstream Streambank
10 ft.
2 ft.
1 ft.
Sandy Loam
Summary Information
Erosion is an area of concern for this site.