Road Stream Crossing Site PM_M127
Pere Marquette River Watershed, Lichte Creek
Chauvez Rd
Riverton Twp,
Mason County
Information collected by:
Site Location
GPS Coordinates: 43.90533
, -86.3532
T18N
R17W
Sec 33
Owned by Private
Fish Passability 0.9
Total Erosion: 1.9797 tons/year
Severity: Moderate
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: Wingwall 30-70 Degree
Outlet Type: At Stream Grade
Structure Material: Concrete
Structure Substrate: Sand
General Conditions: Good
Structure Interior: smooth
Dimensions of Structure: Length 35 ft.
, Width 10 ft.
, Height 6 ft.
Structure Inlet
Water Depth: 0.6 ft.
Water Velocity*: 0.6 ft./sec.
Structure Outlet
Water Depth: 0.8 ft.
Water Velocity*: 0.6 ft./sec.
*Water Velocities were measured 0.5 ft. below Surface
(with Meter)
Stream Information
Stream Flow: Less than Bankfull
Riffle Information
Water Depth: 0.3 ft.
Bankfull Width: 7 ft.
Wetted Width: 4 ft.
Water Velocity: 0.8 ft./sec.
(Measured with Meter)
Dominant Substrate: Sand
Road Information
Paved
County Road
Road Condition: Good
Road Width at Culvert: 23 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 3.5 ft.
Slope: Vertical
Downstream
Fill Depth: 3.5 ft.
Slope: Vertical
Approaches
Left Approach
Length: 720 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 1.842
Erosion: 1.0084 tons/year
Right Approach
Length: 700 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 1.825
Erosion: 0.9713 tons/year
Erosion Information
Total Erosion at Crossing: 1.9797 tons/year
Summary Information
Fish Passability 0.9