Road Stream Crossing Site RIF_AR18
Rifle River Watershed, Tributary of Rifle River
Knight Rd
Clayton Twp,
Arenac County
Information collected by:
Site Location
GPS Coordinates: 44.09831
, -83.97035
T20N
R4E
Sec 27
Fish Passability 0.5
Structure is NOT Perched
Total Erosion: 3.4452 tons/year
Severity: Severe
Year Inventoried: 2012
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: Fair
Structure Interior: corrugated
Dimensions of Structure: Length 54 ft.
, Width 6 ft.
, Height 6 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 0.7 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.2 ft./sec.
Structure Outlet
Water Depth: 1 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.2 ft./sec.
*Water Velocities were measured at the Surface
(with Float Test)
Stream Information
Stream Flow: Less than 1/2 Bankfull
Scour Pool: Length 0 ft.
, Width 0 ft.
, Depth 0 ft.
Upstream Pond: Length 0 ft.
, Width 0 ft.
, Depth 0 ft.
Riffle Information
Water Depth: 0.4 ft.
Bankfull Width: 2.6 ft.
Wetted Width: 2.4 ft.
Water Velocity: 0.5 ft./sec.
(Measured with Float Test)
Dominant Substrate: Organics
Road Information
Gravel
County Road
Road Condition: Poor
Road Width at Culvert: 20 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1 ft.
Slope: 1:2
Downstream
Fill Depth: 2 ft.
Slope: 1:2
Approaches
Left Approach
Length: 420 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.484
Erosion: 1.12 tons/year
Right Approach
Length: 773 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.546
Erosion: 2.3252 tons/year
Erosion Information
Total Erosion at Crossing: 3.4452 tons/year
Extent of Erosion: Stabilized
Erosion is occurring and corrective actions can be installed to address the problem.
Notes: rip rap
Summary Information
Fish Passability 0.5