Road Stream Crossing Site RIF_OG40

Rifle River Watershed, Unnamed Creek
Sensbaugh
Cumming Twp, Ogemaw County
Information collected by:
Huron Pines
Site Location
GPS Coordinates: 44.3689 , -84.01501
T23N R3E Sec 25
Fish Passability 0
Perch Height: 0.2 ft.
Total Erosion: 2.9421 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: 2
Structure Shape: Round
Inlet Type: Projecting
Outlet Type: Freefall into Pool
Structure Material: Metal
Structure Substrate: None
General Conditions: Good
Multiple Culverts/Spans
Culvert/Span
Width
Length
Height
Material
2
2 ft.
25 ft.
2 ft.
Metal
Structure Interior: corrugated
Dimensions of Structure: Length 25 ft. , Width 2 ft. , Height 2 ft.
Perch Height: 0.2 ft.
Structure Inlet
Water Depth: 0.3 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.7 ft./sec.
Structure Outlet
Water Depth: 0.1 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.7 ft./sec.
*Water Velocities were measured at the Surface (with Float Test)
Stream Information
Stream Flow: Less than 1/2 Bankfull
Scour Pool: Length 17.2 ft. , Width 14.6 ft. , Depth 1.2 ft.
Upstream Pond: Length 16.8 ft. , Width 14.3 ft. , Depth 0 ft.
Riffle Information
Water Depth: 0.1 ft.
Bankfull Width: 11.4 ft.
Wetted Width: 4.2 ft.
Water Velocity: 1 ft./sec. (Measured with Float Test)
Dominant Substrate: Gravel
Road Information
Gravel County Road
Road Condition: Fair
Road Width at Culvert: 13 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1.8 ft.
Slope: 1:2
Downstream
Fill Depth: 2 ft.
Slope: 1:2
Approaches
Left Approach
Length: 633 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.525
Erosion: 1.19 tons/year
Right Approach
Length: 862 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.556
Erosion: 1.717 tons/year
Erosion Information
Total Erosion at Crossing: 2.9421 tons/year
Extent of Erosion: Minor
Erosion is occurring and corrective actions can be installed to address the problem.
Notes: upstream side only all sides of scour pool, right and left in between culvert pipes
Location of Erosion
Erosion Dimensions
Eroded Material
Material Eroded
Total Erosion
facing downstream
Length
Width
Depth
Reaching Stream?
(tons/year)
Right Downstream
3.8 ft.
8.5 ft.
6.4 ft.
yes
Sand
0.0268
Right Downstream
4.7 ft.
3 ft.
0.7 ft.
yes
Sand
0.0036
Left Downstream
4.3 ft.
1.9 ft.
1 ft.
yes
Sand
0.0047
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. fish passage