Road Stream Crossing Site AUS_AL012
Au Sable River Watershed, Curtis Creek
Curtisville Rd
Curtis Twp,
Alcona County
Information collected by:
Site Location
GPS Coordinates: 44.56288
, -83.882351
T25N
R05E
Sec 18
Owned by Private
Federal
Federal
Fish Passability 0.5
Structure is NOT Perched
Total Erosion: 2.0787 tons/year
Severity: Moderate
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: Ellipse
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Fair
Structure Interior: corrugated
Dimensions of Structure: Length 60 ft.
, Width 5 ft.
, Height 3.6 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 1.3 ft.
Embedded Depth of Structure: 0.1 ft.
Water Velocity*: 2 ft./sec.
Structure Outlet
Water Depth: 1.3 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.2 ft./sec.
*Water Velocities were measured 1 ft. below Surface
(with Meter)
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 35 ft.
, Width 25 ft.
, Depth 2.1 ft.
Upstream Pond: Length 0 ft.
, Width 0 ft.
, Depth 0 ft.
Riffle Information
Water Depth: 0.5 ft.
Bankfull Width: 8 ft.
Wetted Width: 13 ft.
Water Velocity: 0.7 ft./sec.
(Measured with Meter)
Dominant Substrate: Gravel
Road Information
Paved
County Road
Road Condition: Good
Road Width at Culvert: 24 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 3.1 ft.
Slope: More than 1:2
Downstream
Fill Depth: 3.8 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 0.4522 tons/year
Right Approach
Length: 1000 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 2.05
Erosion: 1.6264 tons/year
Erosion Information
Total Erosion at Crossing: 2.0787 tons/year
Summary Information
Fish Passability 0.5
Erosion is an area of concern for this site.
Downstream scour pool
These non-native species were observerd at this site: Spotted Knapweed