Road Stream Crossing Site PM_N003
Pere Marquette River Watershed, Pease Creek
17 Mile Rd
Home Twp,
Newaygo County
Information collected by:
Site Location
GPS Coordinates: 43.7996225939822
, -85.7450039684772
T16N
R12W
Sec 16
Owned by Private
Total Erosion: 2.8946 tons/year
Severity: Severe
Year Inventoried: 2014
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: Bridge
Structure Shape: Open Bottom Square/Rectangle
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Concrete
Structure Substrate: Mixture
General Conditions: Fair
Structure Interior: smooth
Dimensions of Structure: Length 23 ft.
, Width 21 ft.
, Height 3 ft.
Structure Inlet
Water Depth: 1.1 ft.
Water Velocity*: 2.5 ft./sec.
Structure Outlet
Water Depth: 0.8 ft.
Water Velocity*: 1.1 ft./sec.
*Water Velocities were measured 0.5 ft. below Surface
(with Meter)
Additional Comments
Bridge has some cracks and is starting to deteriorate.
Stream Information
Stream Flow: Bankfull
Riffle Information
Water Depth: 0.4 ft.
Bankfull Width: 12 ft.
Wetted Width: 12 ft.
Water Velocity: 2.5 ft./sec.
(Measured with Meter)
Dominant Substrate: Gravel
Road Information
Gravel
County Road
Road Condition: Good
Road Width at Culvert: 17 ft.
Location of Low Point: Other
Runoff Path: Roadway
Slope: Vertical
Slope: Vertical
Approaches
Left Approach
Length: 200 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.43
Erosion: 0.4028 tons/year
Right Approach
Length: 360 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 1.478
Erosion: 2.4918 tons/year
Erosion Information
Total Erosion at Crossing: 2.8946 tons/year
Extent of Erosion: Moderate
Summary Information
Erosion is an area of concern for this site.