Road Stream Crossing Site AUS_OT110
Au Sable River Watershed, Tributary of North Branch Au Sable River
Ramona Trail
Chester Twp,
Otsego County
Information collected by:
Site Location
GPS Coordinates: 44.9426
, -84.59931
T29N
R02W
Sec 6
Owned by Private
Fish Passability 0.9
Total Erosion: 11.62 tons/year
Severity: Severe
Year Inventoried: 2013
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 1
Structure Shape: Round
Inlet Type: Trash Rack
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Poor
Structure Interior: corrugated
Structure is Rusted through
Dimensions of Structure: Length 20 ft.
, Width 1.5 ft.
, Height 1.6 ft.
Percentage Plugged:
Inlet: 76% to 100%
Percentage Crushed:
Outlet: 26% to 50%
Structure Inlet
Water Depth: 1.5 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0 ft./sec.
Structure Outlet
Water Depth: 2 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
Riffle Information
Water Depth: 1.4 ft.
Bankfull Width: 15 ft.
Wetted Width: 8 ft.
Water Velocity: 0.328 ft./sec.
(Measured with Float Test)
Dominant Substrate: Sand
Road Information
Sand
County Road
Road Condition: Fair
Road Width at Culvert: 13.5 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 1.3 ft.
Slope: More than 1:2
Downstream
Fill Depth: 2 ft.
Slope: 1:1.5
Approaches
Left Approach
Length: 697 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.535
Erosion: 1.3856 tons/year
Right Approach
Length: 590 ft.
Slope: More Than 10%
Vegetation: Heavy
LS Factor: 4.664
Erosion: 10.2344 tons/year
Erosion Information
Total Erosion at Crossing: 11.62 tons/year
Extent of Erosion: Minor
Summary Information
Fish Passability 0.9
Fish Passage is an area of concern for this site.
100% plugged inlet with trash rack and a crushed and rusted culvert at outlet
A future visit to this site is recommended. Replace culvert
These non-native species were observerd at this site: Leafy Spurge, Spotted Knapweed