Road Stream Crossing Site AUS_OT111
Au Sable River Watershed, North Branch Au Sable River
Scenic Trail
Bagley Twp,
Otsego County
Information collected by:
Site Location
GPS Coordinates: 44.95238
, -84.65808
T30N
R03W
Sec 34
Owned by Private
Fish Passability 0.9
Total Erosion: 21.3006 tons/year
Severity: Severe
Year Inventoried: 2013
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 2
Structure Shape: Round
Inlet Type: Apron
Outlet Type: Outlet Apron
Structure Material: Metal
Structure Substrate: Mixture
General Conditions: Good
Multiple Culverts/Spans | ||||
Culvert/Span | Width | Length | Height | Material |
1 |
2.3 ft. |
40.1 ft. |
2.3 ft. |
Metal |
Structure Interior: corrugated
Dimensions of Structure: Length 50.4 ft.
, Width 2.3 ft.
, Height 2.3 ft.
Structure Inlet
Water Depth: 1.3 ft.
Embedded Depth of Structure: 1 ft.
Water Velocity*: 0.67 ft./sec.
Structure Outlet
Water Depth: 1 ft.
Embedded Depth of Structure: 0.5 ft.
Water Velocity*: 0.625 ft./sec.
*Water Velocities were measured at the Surface
(with Float Test)
Stream Information
Stream Flow: Less than 1/2 Bankfull
Riffle Information
Water Depth: 0.7 ft.
Bankfull Width: 40 ft.
Wetted Width: 38 ft.
Water Velocity: 0.2 ft./sec.
(Measured with Float Test)
Dominant Substrate: Sand
Road Information
Sand
Private Road
Road Condition: Good
Road Width at Culvert: 24.5 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 4.5 ft.
Slope: 1:2
Downstream
Fill Depth: 4.3 ft.
Slope: 1:2
Approaches
Left Approach
Length: 627 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 1.763
Erosion: 7.4605 tons/year
Right Approach
Length: 1000 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 2.05
Erosion: 13.8361 tons/year
Erosion Information
Total Erosion at Crossing: 21.3006 tons/year
Extent of Erosion: Minor
Notes: Created from golf Cart path entrance-very minimal.
Location of Erosion | Erosion Dimensions | Eroded Material | Material Eroded | Total Erosion | ||
facing downstream | Length | Width | Depth | Reaching Stream? | (tons/year) | |
Left Approach |
12 ft. |
3 ft. |
0.3 ft. |
no |
Sand |
0.004 |
Summary Information
Fish Passability 0.9
These non-native species were observerd at this site: Queen Anne's Lace