Road Stream Crossing Site RIF_OG109

Rifle River Watershed, Rifle River
Greenwood Rd
Mills Twp, Ogemaw County
Information collected by:
Huron Pines
Site Location
GPS Coordinates: 44.17973 , -84.07397
T21N R3E Sec 28
Fish Passability 1
Structure is NOT Perched
Severity: Minor
Year Inventoried: 2012
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: Bridge
Structure Shape: Square/Rectangle
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Concrete
Structure Substrate: Mixture
General Conditions: Fair
Structure Interior: smooth
Dimensions of Structure: Length 38 ft. , Width 87 ft. , Height 31 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 3 ft.
Water Velocity*: 0.5 ft./sec.
Structure Outlet
Water Depth: 3 ft.
Water Velocity*: 0.5 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 0 ft. , Width 0 ft. , Depth 0 ft.
Riffle Information
Water Depth: 3 ft.
Bankfull Width: 90 ft.
Wetted Width: 85 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: 28 ft.
Location of Low Point: Other
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 4.3 ft.
Slope: Vertical
Downstream
Fill Depth: 4 ft.
Slope: Vertical
Length: 696 ft.
Slope: 6% to 10%
Vegetation: Heavy
Vegetation: Heavy
Erosion Information
Extent of Erosion: Minor
Erosion is occurring and corrective actions can be installed to address the problem.
Notes: the downstream right is an access site
Location of Erosion
Erosion Dimensions
Eroded Material
Material Eroded
Total Erosion
facing downstream
Length
Width
Depth
Reaching Stream?
(tons/year)
Right Upstream
4.3 ft.
10.4 ft.
0.1 ft.
no
Sand
0.0005
Right Downstream
123 ft.
87 ft.
0.1 ft.
yes
Sand
0.0135
Summary Information
Fish Passability 1