Road Stream Crossing Site RIF_AR115
Rifle River Watershed, Fritz Creek triburary
Dobbler Rd
Clayton Twp,
Arenac County
Information collected by:
Site Location
GPS Coordinates: 44.098762
, -83.98762
T20N
R4E
Sec 34
Fish Passability 0
Perch Height: 1.4 ft.
Total Erosion: 1.5222 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: Freefall onto Riprap
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Poor
Structure Interior: corrugated
Dimensions of Structure: Length 48 ft.
, Width 4.1 ft.
, Height 3.9 ft.
Perch Height: 1.4 ft.
Structure Inlet
Water Depth: 0.3 ft.
Embedded Depth of Structure: 0.3 ft.
Water Velocity*: 1.5 ft./sec.
Structure Outlet
Water Depth: 0.1 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 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 24 ft.
, Width 24 ft.
, Depth 1.5 ft.
Upstream Pond: Length 0 ft.
, Width 0 ft.
, Depth 0 ft.
Riffle Information
Water Depth: 0.2 ft.
Bankfull Width: 3.4 ft.
Wetted Width: 2.4 ft.
Water Velocity: 1 ft./sec.
(Measured with Float Test)
Dominant Substrate: Sand
Road Information
Gravel
County Road
Road Condition: Poor
Road Width at Culvert: 12 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 7 ft.
Slope: 1:1.5
Downstream
Fill Depth: 8 ft.
Slope: 1:1.5
Approaches
Left Approach
Length: 444 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.489
Erosion: 0.7174 tons/year
Right Approach
Length: 489 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.498
Erosion: 0.8047 tons/year
Erosion Information
Total Erosion at Crossing: 1.5222 tons/year
Extent of Erosion: Stabilized
Erosion is occurring and corrective actions can be installed to address the problem.
Notes: newly installed riprap
Summary Information
Fish Passability 0
Fish Passage is an area of concern for this site.
perched culvert
A future visit to this site is recommended. perced culvert