Road Stream Crossing Site RIF_OG117
Rifle River Watershed, Mansfield Creek
Henderson Lake Rd
Mills Twp,
Ogemaw County
Information collected by:
Site Location
GPS Coordinates: 44.1628
, -84.00722
T21N
R3E
Sec 35
Fish Passability 0
Perch Height: 6.1 ft.
Total Erosion: 0.3373 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 into Pool
Structure Material: Metal
Structure Substrate: None
General Conditions: Fair
Structure Interior: corrugated
Dimensions of Structure: Length 101 ft.
, Width 7.5 ft.
, Height 6.1 ft.
Perch Height: 6.1 ft.
Structure Inlet
Water Depth: 0.6 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1 ft./sec.
Structure Outlet
Water Depth: 0.2 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.5 ft./sec.
*Water Velocities were measured at the Surface
(with Float Test)
Stream Information
Stream Flow: Less than 1/2 Bankfull
Scour Pool: Length 60 ft.
, Width 50 ft.
, Depth 2.1 ft.
Upstream Pond: Length 15.2 ft.
, Width 21 ft.
, Depth 0 ft.
Riffle Information
Water Depth: 0.3 ft.
Bankfull Width: 12.1 ft.
Wetted Width: 10.9 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: 22 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 6 ft.
Slope: 1:1.5
Downstream
Fill Depth: 7 ft.
Slope: 1:1.5
Approaches
Left Approach
Length: 480 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.496
Erosion: 0.1731 tons/year
Right Approach
Length: 459 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.492
Erosion: 0.1642 tons/year
Erosion Information
Total Erosion at Crossing: 0.3373 tons/year
Extent of Erosion: Stabilized
Erosion is occurring and corrective actions can be installed to address the problem.
Notes: riprap installed
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 and invasive species
These non-native species were observerd at this site: Purple Loosestrife