Road Stream Crossing Site RIF_AR104

Rifle River Watershed, Rifle River
State Rd And Stover Rd
Arenac Twp, Arenac County
Information collected by:
Huron Pines
Site Location
GPS Coordinates: 44.00487 , -83.85891
T19N R5E Sec 34
Fish Passability 1
Structure is NOT Perched
Total Erosion: 0.2064 tons/year
Severity: Moderate
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: Pipe Arch
Inlet Type: Projecting
Outlet Type: Cascade over Riprap
Structure Material: Metal
Structure Substrate: Rock
General Conditions: Fair
Structure Interior: corrugated
Dimensions of Structure: Length 69 ft. , Width 7.9 ft. , Height 6.2 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 0.5 ft.
Embedded Depth of Structure: 0.2 ft.
Water Velocity*: 0 ft./sec.
Structure Outlet
Water Depth: 0.4 ft.
Embedded Depth of Structure: 0.4 ft.
Water Velocity*: 1 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 40 ft. , Width 25 ft. , Depth 0 ft.
Riffle Information
Water Depth: 0.3 ft.
Bankfull Width: 7.2 ft.
Wetted Width: 6.5 ft.
Water Velocity: 0.5 ft./sec. (Measured with Float Test)
Dominant Substrate: Sand
Road Information
Paved County Road
Road Condition: Fair
Road Width at Culvert: 24 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 3.3 ft.
Slope: More than 1:2
Downstream
Fill Depth: 5 ft.
Slope: 1:1.5
Approaches
Left Approach
Length: 1000 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0397 tons/year
Right Approach
Length: 1000 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0397 tons/year
Erosion Information
Total Erosion at Crossing: 0.2064 tons/year
Extent of Erosion: Severe
Notes: someone just dug out stream channel
Location of Erosion
Erosion Dimensions
Eroded Material
Material Eroded
Total Erosion
facing downstream
Length
Width
Depth
Reaching Stream?
(tons/year)
Left Downstream
5.2 ft.
60 ft.
0.8 ft.
yes
Sand
0.0915
Right Downstream
2.7 ft.
40 ft.
0.6 ft.
yes
Sand
0.0356
Summary Information
Fish Passability 1