Road Stream Crossing Site RIF_AR7
Rifle River Watershed, Unnamed Creek
School Road
Clayton Twp,
Arenac County
Information collected by:
Site Location
GPS Coordinates: 44.08784
, -84.02733
T20N
R4E
Sec 31
Fish Passability 0
Perch Height: 1 ft.
Total Erosion: 5.5013 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 into Pool
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Fair
Structure Interior: corrugated
Dimensions of Structure: Length 45 ft.
, Width 5 ft.
, Height 5.2 ft.
Perch Height: 1 ft.
Structure Inlet
Water Depth: 0.1 ft.
Embedded Depth of Structure: 0.1 ft.
Water Velocity*: 0.5 ft./sec.
Structure Outlet
Water Depth: 0.1 ft.
Embedded Depth of Structure: 0 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 30 ft.
, Width 30 ft.
, Depth 2.1 ft.
Upstream Pond: Length 0 ft.
, Width 0 ft.
, Depth 0 ft.
Riffle Information
Water Depth: 0.3 ft.
Bankfull Width: 4.3 ft.
Wetted Width: 2.9 ft.
Water Velocity: 1 ft./sec.
(Measured with Float Test)
Dominant Substrate: Sand
Road Information
Gravel
County Road
Road Condition: Fair
Road Width at Culvert: 19 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: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 2.9835 tons/year
Right Approach
Length: 330 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 1.439
Erosion: 2.4855 tons/year
Erosion Information
Total Erosion at Crossing: 5.5013 tons/year
Extent of Erosion: Moderate
Erosion is occurring and corrective actions can be installed to address the problem.
Notes: riprap up and downstream
Location of Erosion | Erosion Dimensions | Eroded Material | Material Eroded | Total Erosion | ||
facing downstream | Length | Width | Depth | Reaching Stream? | (tons/year) | |
Right Downstream |
14 ft. |
2.4 ft. |
0.3 ft. |
no |
Sand |
0.0323 |
Summary Information
Fish Passability 0
Fish Passage is an area of concern for this site.
yes, ag sit, fish passage
A future visit to this site is recommended. ag site, perched culvert