Road Stream Crossing Site AUS_OS004
Au Sable River Watershed, Tributary of East Branch Big Creek
Henning Rd
Greenwood Twp,
Oscoda County
Information collected by:
Site Location
GPS Coordinates: 44.81187
, -84.35694
T28N
R01E
Sec 18
Owned by Private
State
State
Fish Passability 0.5
Structure is NOT Perched
Total Erosion: 5.3907 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: Sand
General Conditions: Fair
Structure Interior: corrugated
Dimensions of Structure: Length 33.5 ft.
, Width 1.2 ft.
, Height 0.9 ft.
Percentage Plugged:
Inlet: 51% to 75%
Structure is NOT Perched
Water Depth: 0 ft.
Embedded Depth of Structure: 0.3 ft.
Water Velocity*: 0 ft./sec.
Water Depth: 0 ft.
Embedded Depth of Structure: 0.2 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.
Riffle Information
Water Depth: 0 ft.
Bankfull Width: 0 ft.
Wetted Width: 0 ft.
Water Velocity: 0 ft./sec.
Road Information
Gravel
County Road
Road Condition: Good
Road Width at Culvert: 14.5 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1 ft.
Slope: More than 1:2
Downstream
Fill Depth: 2 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 480 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 1.614
Erosion: 3.0946 tons/year
Right Approach
Length: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 2.2769 tons/year
Erosion Information
Total Erosion at Crossing: 5.3907 tons/year
Extent of Erosion: Minor
Location of Erosion | Erosion Dimensions | Eroded Material | Material Eroded | Total Erosion | ||
facing downstream | Length | Width | Depth | Reaching Stream? | (tons/year) | |
Right Downstream |
10 ft. |
10 ft. |
2 ft. |
no |
Sandy Loam |
0.0192 |
Summary Information
Fish Passability 0.5
A future visit to this site is recommended. Plugged Culvert
These non-native species were observerd at this site: Spotted Knapweed, European Swamp Thistle, Yellow Sweet Clover