Road Stream Crossing Site AUS_OS086
Au Sable River Watershed, South tributary of Lost Creek
Sitt Rd
Oscoda County
Information collected by:
Site Location
GPS Coordinates: 44.617217
, -84.150183
T26N
R02E
Sec 25,26
Total Erosion: 2.1727 tons/year
Severity: Moderate
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: Round
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Poor
Structure Interior: corrugated
Dimensions of Structure: Length 32 ft.
, Width 1.5 ft.
, Height 1.5 ft.
Water Depth: 0 ft.
Embedded Depth of Structure: 0.3 ft.
Water Velocity*: 0 ft./sec.
Water Depth: 0 ft.
Embedded Depth of Structure: 0.3 ft.
Water Velocity*: 0 ft./sec.
*Water Velocities were measured at the Surface
(with Float Test)
Stream Information
Stream Flow: None
Scour Pool: Length 0 ft.
, Width 0 ft.
, Depth 0 ft.
Upstream Pond: Length 0 ft.
, Width 0 ft.
, Depth 0 ft.
Bankfull Width: 0 ft.
Wetted Width: 0 ft.
Water Velocity: 0 ft./sec.
(Measured with Meter)
Dominant Substrate: Organics
Road Information
Sand
County Road
Road Condition: Good
Road Width at Culvert: 22 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 1.5 ft.
Slope: More than 1:2
Downstream
Fill Depth: 1.5 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 300 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.46
Erosion: 0.8364 tons/year
Right Approach
Length: 450 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.49
Erosion: 1.3364 tons/year
Erosion Information
Total Erosion at Crossing: 2.1727 tons/year
Extent of Erosion: Moderate
Notes:
None noted
Summary Information
Erosion is an area of concern for this site.