Road Stream Crossing Site PM_N007

Pere Marquette River Watershed, Whipple Creek
14 Mile Rd
Barton Twp, Newaygo County
Information collected by:
Site Location
GPS Coordinates: 43.7573018690691 , -85.6798195838928
T16N R11W Sec 19
Owned by Private
Total Erosion: 0.2186 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: Round
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: None
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 23 ft. , Width 2 ft. , Height 2 ft.
Structure Inlet
Water Depth: 0.3 ft.
Water Velocity*: 1.1 ft./sec.
Structure Outlet
Water Depth: 0.4 ft.
Water Velocity*: 0.7 ft./sec.
*Water Velocities were measured 0.2 ft. below Surface (with Meter)
Additional Comments

Seasonal Rd

Stream Information
Stream Flow: Less than Bankfull
Riffle Information
Water Depth: 0.3 ft.
Bankfull Width: 4 ft.
Wetted Width: 3 ft.
Water Velocity: 0.6 ft./sec. (Measured with Meter)
Dominant Substrate: Sand
Road Information
Gravel County Road (Seasonal)
Road Condition: Poor
Road Width at Culvert: 12 ft.
Location of Low Point: Other
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 1 ft.
Slope: 1:1.5
Downstream
Fill Depth: 0.8 ft.
Slope: 1:1.5
Approaches
Left Approach
Length: 200 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0331 tons/year
Right Approach
Length: 90 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.372
Erosion: 0.1107 tons/year
Erosion Information
Total Erosion at Crossing: 0.2186 tons/year
Extent of Erosion: Moderate
Notes:

Soft embankments.

Location of Erosion
Erosion Dimensions
Eroded Material
Material Eroded
Total Erosion
facing downstream
Length
Width
Depth
Reaching Stream?
(tons/year)
Left Upstream Embankment
2 ft.
2 ft.
0.2 ft.
yes
Gravel
0.0028
Right Upstream Embankment
2 ft.
2 ft.
0.2 ft.
yes
Gravel
0.0028
Right Approach
90 ft.
2 ft.
0.1 ft.
yes
Sand
0.0693
Summary Information
Erosion is an area of concern for this site.