Road Stream Crossing Site PM_M151
Pere Marquette River Watershed, Pere Marquette tributary
Dennis Rd
Amber Twp,
Mason County
Information collected by:
Site Location
GPS Coordinates: 43.94725
, -86.36851
T18N
R17W
Sec 20
Owned by Private
Fish Passability 0.5
Total Erosion: 0.7463 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 40 ft.
, Width 2 ft.
, Height 2 ft.
Water Depth: 0 ft.
Water Velocity*: 0 ft./sec.
Structure Outlet
Water Depth: 0.2 ft.
Water Velocity*: 0 ft./sec.
Stream Information
Stream Flow: None
Scour Pool: Length 7 ft.
, Width 4 ft.
, Depth 0.6 ft.
Riffle Information
Water Depth: 0 ft.
Water Velocity: 0 ft./sec.
Road Information
Gravel
County Road
Road Condition: Good
Road Width at Culvert: 18 ft.
Location of Low Point: Other
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 3.5 ft.
Slope: 1:1.5
Downstream
Fill Depth: 3.5 ft.
Slope: 1:1.5
Approaches
Left Approach
Length: 300 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.46
Erosion: 0.6843 tons/year
Right Approach
Length: 250 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.062 tons/year
Erosion Information
Total Erosion at Crossing: 0.7463 tons/year
Extent of Erosion: Minor
Summary Information
Fish Passability 0.5