Road Stream Crossing Site AUS_OS096
Au Sable River Watershed, Antler Creek
M-72
Big Creek Twp,
Oscoda County
Information collected by:
Site Location
GPS Coordinates: 44.6451
, -84.19378
T26N
R02E
Sec 16
Owned by Private
Fish Passability 0.9
Structure is NOT Perched
Total Erosion: 0.1445 tons/year
Severity: Minor
Year Inventoried: 2013
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: Open Bottom Arch
Inlet Type: Mitered
Outlet Type: Outlet Apron
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Good
Structure Interior: smooth
Dimensions of Structure: Length 103 ft.
, Width 5.2 ft.
, Height 3.5 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 1.2 ft.
Embedded Depth of Structure: 0.3 ft.
Water Velocity*: 1.29 ft./sec.
Structure Outlet
Water Depth: 1.5 ft.
Embedded Depth of Structure: 0.3 ft.
Water Velocity*: 1.19 ft./sec.
*Water Velocities were measured at the Surface
(with Float Test)
Additional Comments
Heavy rain yesterday and during survey
Stream Information
Stream Flow: More than 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: 2.2 ft.
Bankfull Width: 11 ft.
Wetted Width: 15.3 ft.
Water Velocity: 1.07 ft./sec.
(Measured with Float Test)
Dominant Substrate: Organics
Road Information
Paved
State Road
Road Condition: Good
Road Width at Culvert: 43.7 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 2.3 ft.
Slope: More than 1:2
Downstream
Fill Depth: 2.7 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 1000 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0722 tons/year
Right Approach
Length: 1000 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0722 tons/year
Erosion Information
Total Erosion at Crossing: 0.1445 tons/year
Summary Information
Fish Passability 0.9
Fish Passage is an area of concern for this site.
Inlet and outlet partially blocked with vegetation. Culvert is also more than 100 feet in length.
A future visit to this site is recommended. Check for blockage on inlet and outlet