Road Stream Crossing Site AUS_OS013
Au Sable River Watershed, Tributary of East Branch of Big Creek
Fire Tower Rd
Greenwood Twp,
Oscoda County
Information collected by:
Site Location
GPS Coordinates: 44.73317
, -84.35355
T27N
R01E
Sec 17
Owned by Private
Structure is NOT Perched
Total Erosion: 3.1405 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)
Number of Structures: 1
Structure Shape: Round
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Mixture
General Conditions: Poor
Structure Interior: corrugated
Dimensions of Structure: Length 38 ft.
, Width 0.9 ft.
, Height 1.2 ft.
Percentage Plugged:
Outlet: 26% to 50%
Percentage Crushed:
Inlet: 26% to 50%
Outlet: 51% to 75%
Structure is NOT Perched
Structure Inlet
Water Depth: 0.7 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0 ft./sec.
Structure Outlet
Water Depth: 0.5 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: Less than Bankfull
Dominant Substrate: Organics
Road Information
Gravel
County Road
Road Condition: Good
Road Width at Culvert: 20 ft.
Location of Low Point: Other
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1.7 ft.
Slope: More than 1:2
Downstream
Fill Depth: 2 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 0 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0 tons/year
Right Approach
Length: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 3.1405 tons/year
Erosion Information
Total Erosion at Crossing: 3.1405 tons/year
Extent of Erosion: Minor
Notes: Minor erosion from road shoulder and grading
Summary Information
A future visit to this site is recommended. Culvert is in poor overall conditions
These non-native species were observerd at this site: Narrow-Leaved Cattail, Yellow Sweet Clover, Spotted Knapweed, St. Johnswort, Queen Anne's Lace, OX-Eye Daisy