Road Stream Crossing Site RIF_OG23

Rifle River Watershed, Houghton Creek
Flynn Rd
Cumming Twp, Ogemaw County
Information collected by:
Huron Pines
Site Location
GPS Coordinates: 44.40797 , -84.09601
T23N R3E Sec 5
Fish Passability 0
Structure is NOT Perched
Total Erosion: 4.6468 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: Pipe Arch
Inlet Type: Headwall
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: None
General Conditions: Poor
Structure Interior: corrugated
Dimensions of Structure: Length 36 ft. , Width 8.7 ft. , Height 6.2 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 1.3 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 4 ft./sec.
Structure Outlet
Water Depth: 0.9 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 4 ft./sec.
*Water Velocities were measured at the Surface (with Float Test)
Stream Information
Stream Flow: Less than 1/2 Bankfull
Scour Pool: Length 25 ft. , Width 22 ft. , Depth 3.5 ft.
Upstream Pond: Length 21 ft. , Width 22 ft. , Depth 0 ft.
Riffle Information
Water Depth: 1.5 ft.
Bankfull Width: 31 ft.
Wetted Width: 27 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: 17 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1.2 ft.
Slope: Vertical
Downstream
Fill Depth: 1 ft.
Slope: Vertical
Approaches
Left Approach
Length: 337 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.467
Erosion: 0.7377 tons/year
Right Approach
Length: 441 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.488
Erosion: 1.0083 tons/year
Erosion Information
Total Erosion at Crossing: 4.6468 tons/year
Extent of Erosion: Severe
Notes: severe erosion on both sides of the headwall upstream, and on the lh side of downstream. headwall is under cutting on rh side downstream
Location of Erosion
Erosion Dimensions
Eroded Material
Material Eroded
Total Erosion
facing downstream
Length
Width
Depth
Reaching Stream?
(tons/year)
Right Upstream
18 ft.
4.6 ft.
4.9 ft.
yes
Sand
1.9404
Left Upstream
8.2 ft.
7.8 ft.
1.4 ft.
yes
Sand
0.2526
Left Downstream
7.4 ft.
6.2 ft.
1.4 ft.
yes
Sand
0.2279
Right Downstream
8 ft.
2.1 ft.
3 ft.
yes
Gravel
0.48
Summary Information
Fish Passability 0
Erosion is an area of concern for this site.
A future visit to this site is recommended. erosion