Road Stream Crossing Site RIF_AR113
Rifle River Watershed, Tributary of Townline Creek
Knight Rd
Clayton Twp,
Arenac County
Information collected by:
Site Location
GPS Coordinates: 44.09838
, -83.94029
T20N
R4E
Sec 25
Fish Passability 0.9
Structure is NOT Perched
Total Erosion: 8.7065 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: Cascade over Riprap
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Poor
Structure Interior: corrugated
Dimensions of Structure: Length 42 ft.
, Width 3.1 ft.
, Height 3.2 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 0.3 ft.
Embedded Depth of Structure: 0.1 ft.
Water Velocity*: 0.2 ft./sec.
Structure Outlet
Water Depth: 0.2 ft.
Embedded Depth of Structure: 0.1 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 12.2 ft.
, Width 6.3 ft.
, Depth 0.5 ft.
Upstream Pond: Length 0 ft.
, Width 0 ft.
, Depth 0 ft.
Riffle Information
Water Depth: 0.2 ft.
Bankfull Width: 3.3 ft.
Wetted Width: 2.9 ft.
Water Velocity: 0.2 ft./sec.
(Measured with Float Test)
Dominant Substrate: Sand
Road Information
Gravel
County Road
Road Condition: Poor
Road Width at Culvert: 17 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 6 ft.
Slope: 1:1.5
Downstream
Fill Depth: 6 ft.
Slope: 1:1.5
Approaches
Left Approach
Length: 450 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 1.583
Erosion: 3.335 tons/year
Right Approach
Length: 645 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 1.778
Erosion: 5.3715 tons/year
Erosion Information
Total Erosion at Crossing: 8.7065 tons/year
Extent of Erosion: Stabilized
Erosion is occurring and corrective actions can be installed to address the problem.
Notes: riprap installed
Summary Information
Fish Passability 0.9
Fish Passage is an area of concern for this site.
cascade over riprap
A future visit to this site is recommended. fish passage