Road Stream Crossing Site CLHW_OR-040
Ocqueoc River Watershed, Silver Creek
Beach Grove Hwy
Moltke Twp,
Presque Isle County
Information collected by:
Site Location
GPS Coordinates: 45.42596
, -83.99346
T35N
R4E
Sec 7
Owned by Private
Fish Passability 0.5
Structure is NOT Perched
Total Erosion: 7.1446 tons/year
Severity: Severe
Year Inventoried: 2016
Site ID
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: Ellipse
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: None
General Conditions: Good
Structure Interior: corrugated
Structure is Rusted through
Dimensions of Structure: Length 40 ft.
, Width 5.5 ft.
, Height 3.7 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 0.4 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.9 ft./sec.
Structure Outlet
Water Depth: 0.8 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.9 ft./sec.
*Water Velocities were measured at the Surface
(with Float Test)
Stream Information
Stream Flow: Less than 1/2 Bankfull
Scour Pool: Length 22 ft.
, Width 15 ft.
, Depth 1.6 ft.
Upstream Pond: Length 8 ft.
, Width 12 ft.
, Depth 1 ft.
Riffle Information
Water Depth: 1 ft.
Bankfull Width: 11 ft.
Wetted Width: 7 ft.
Water Velocity: 0.8 ft./sec.
(Measured with Float Test)
Dominant Substrate: Gravel
Road Information
Gravel
County Road
Road Condition: Good
Road Width at Culvert: 20 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1.2 ft.
Slope: More than 1:2
Downstream
Fill Depth: 1.2 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 374 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.475
Erosion: 0.9784 tons/year
Right Approach
Length: 633 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 1.768
Erosion: 6.1663 tons/year
Erosion Information
Total Erosion at Crossing: 7.1446 tons/year
Summary Information
Fish Passability 0.5