Road Stream Crossing Site AUS_AL020

Au Sable River Watershed, Smith Creek
South Curtisville Rd
Curtis Twp, Alcona County
Information collected by:
Huron Pines
Site Location
GPS Coordinates: 44.52343 , -83.87761
T25N R05E Sec 30,31
Owned by Private
Fish Passability 0.5
Structure is NOT Perched
Total Erosion: 0.7884 tons/year
Severity: Moderate
Year Inventoried: 2013
Site ID
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: None
General Conditions: Fair
Structure Interior: corrugated
Dimensions of Structure: Length 47 ft. , Width 3.9 ft. , Height 3.9 ft.
Percentage Plugged: Inlet: 26% to 50% Outlet: 0% In Pipe: 0%
Structure is NOT Perched
Structure Inlet
Water Depth: 2.7 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0 ft./sec.
Structure Outlet
Water Depth: 2.7 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.1 ft./sec.
*Water Velocities were measured at the Surface (with Meter)
Stream Information
Stream Flow: Less than 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: 0.5 ft.
Bankfull Width: 8 ft.
Wetted Width: 3.5 ft.
Water Velocity: 2.3 ft./sec. (Measured with Meter)
Dominant Substrate: Gravel
Road Information
Paved County Road
Road Condition: Good
Road Width at Culvert: 26 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 7 ft.
Slope: 1:1.5
Downstream
Fill Depth: 5.7 ft.
Slope: 1:2
Approaches
Left Approach
Length: 657 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.529
Erosion: 0.2985 tons/year
Right Approach
Length: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 0.4899 tons/year
Erosion Information
Total Erosion at Crossing: 0.7884 tons/year
Summary Information
Fish Passability 0.5
Fish Passage is an area of concern for this site. possibly too small
A future visit to this site is recommended. Keep culvert clear