Road Stream Crossing Site RIF_OG209

Rifle River Watershed, Tributary
Grand Jean Rd
Rose Twp, Ogemaw County
Information collected by:
Huron Pines
Site Location
GPS Coordinates: 44.44006 , -84.11668
T24N R3E Sec 30
Fish Passability 0
Perch Height: 1.4 ft.
Total Erosion: 3.0402 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: Projecting
Outlet Type: Freefall onto Riprap
Structure Material: Metal
Structure Substrate: None
General Conditions: Fair
Structure Interior: corrugated
Dimensions of Structure: Length 38 ft. , Width 4.3 ft. , Height 2.6 ft.
Perch Height: 1.4 ft.
Structure Inlet
Water Depth: 0.3 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.2 ft./sec.
Structure Outlet
Water Depth: 0.2 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 2.9 ft./sec.
*Water Velocities were measured 0.1 ft. below Surface (with Meter)
Stream Information
Stream Flow: Less than 1/2 Bankfull
Scour Pool: Length 10.7 ft. , Width 9.7 ft. , Depth 2.6 ft.
Upstream Pond: Length 10.5 ft. , Width 13 ft. , Depth 0 ft.
Riffle Information
Water Depth: 0.4 ft.
Bankfull Width: 9 ft.
Wetted Width: 5.1 ft.
Water Velocity: 0.6 ft./sec. (Measured with Meter)
Dominant Substrate: Gravel
Road Information
Gravel County Road
Road Condition: Good
Road Width at Culvert: 20 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 0.5 ft.
Slope: 1:2
Downstream
Fill Depth: 1 ft.
Slope: 1:2
Approaches
Left Approach
Length: 325 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 1.433
Erosion: 2.5651 tons/year
Right Approach
Length: 186 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.422
Erosion: 0.4321 tons/year
Erosion Information
Total Erosion at Crossing: 3.0402 tons/year
Extent of Erosion: Minor
Notes: erosion occurring along sides of inlet and run of coming from road
Location of Erosion
Erosion Dimensions
Eroded Material
Material Eroded
Total Erosion
facing downstream
Length
Width
Depth
Reaching Stream?
(tons/year)
Left Upstream
1.9 ft.
1.4 ft.
4 ft.
yes
Sand
0.0084
Right Upstream
2.2 ft.
1.1 ft.
2.8 ft.
yes
Sand
0.0068
Left Downstream
6.5 ft.
2.2 ft.
2.7 ft.
yes
Sand
0.0193
Right Downstream
5.2 ft.
3.2 ft.
1.5 ft.
yes
Sand
0.0086
Summary Information
Fish Passability 0
Fish Passage is an area of concern for this site. culvert is perced
A future visit to this site is recommended. culvert is in tributary and is perched