Road Stream Crossing Site AUS_OS025
Au Sable River Watershed, Tributary of Beaver Creek
Seely Rd
Greenwood Twp,
Oscoda County
Information collected by:
Site Location
GPS Coordinates: 44.70123
, -84.3022
T27N
R01E
Sec 27
Owned by Private
Federal
Federal
Structure is NOT Perched
Total Erosion: 16.9438 tons/year
Severity: Severe
Year Inventoried: 2013
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: culvert(s)
Structure Shape: Round
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: None
General Conditions: Poor
Structure Interior: corrugated
Dimensions of Structure: Length 30 ft.
, Width 1.3 ft.
, Height 1.5 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 0.4 ft.
Embedded Depth of Structure: 0.1 ft.
Water Velocity*: 0 ft./sec.
Structure Outlet
Water Depth: 1.2 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0 ft./sec.
*Water Velocities were measured at the Surface
(with Float Test)
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 10 ft.
, Width 9 ft.
, Depth 2 ft.
Road Information
Gravel
County Road
Road Condition: Good
Road Width at Culvert: 24 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 2 ft.
Slope: Vertical
Downstream
Fill Depth: 2 ft.
Slope: 1:2
Approaches
Left Approach
Length: 1000 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 2.05
Erosion: 13.5537 tons/year
Right Approach
Length: 350 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 1.465
Erosion: 3.3901 tons/year
Erosion Information
Total Erosion at Crossing: 16.9438 tons/year
Extent of Erosion: Minor
Notes: Due to roadway traffic
Summary Information
A future visit to this site is recommended. To fix culvert, one side, downstream, is completely under water.
These non-native species were observerd at this site: Spotted Knapweed