Road Stream Crossing Site AUS_AL009
Au Sable River Watershed, Tributary of Smith Creek
Bamfield Rd
Curtis Twp,
Alcona County
Information collected by:
Site Location
GPS Coordinates: 44.559453
, -83.8769
T25N
R05E
Sec 19
Owned by Federal
Fish Passability 0.9
Structure is NOT Perched
Total Erosion: 19.1502 tons/year
Severity: Severe
Year Inventoried: 2012
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: Good
Structure Interior: corrugated
Dimensions of Structure: Length 30 ft.
, Width 1.5 ft.
, Height 1.5 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 1.4 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0 ft./sec.
Structure Outlet
Water Depth: 1.4 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0 ft./sec.
*Water Velocities were measured at the Surface
(with Meter)
Stream Information
Stream Flow: 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: 0 ft.
Bankfull Width: 0 ft.
Wetted Width: 0 ft.
Water Velocity: 0 ft./sec.
(Measured with Meter)
Dominant Substrate: Organics
Road Information
Gravel
County Road
Road Condition: Good
Road Width at Culvert: 20 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1 ft.
Slope: More than 1:2
Downstream
Fill Depth: 1 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 1000 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 2.05
Erosion: 11.2948 tons/year
Right Approach
Length: 760 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 1.876
Erosion: 7.8554 tons/year
Erosion Information
Total Erosion at Crossing: 19.1502 tons/year
Summary Information
Fish Passability 0.9
Erosion is an area of concern for this site.
Road grader pushes road gravel into culvert area, narrow road.