Road Stream Crossing Site AUS_PR175
Au Sable River Watershed, Outlet tributary of North Lake
North Lake Rd
Curtis Twp,
Alcona County
Information collected by:
Site Location
GPS Coordinates: 44.56406
, -83.70031
T25N
R06E
Sec 15
Owned by Private
Fish Passability 0
Structure is NOT Perched
Total Erosion: 4.0727 tons/year
1.3 Upstream Miles
Severity: Severe
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: Gravel
General Conditions: Poor
Structure Interior: corrugated
Dimensions of Structure: Length 28 ft.
, Width 3 ft.
, Height 3.2 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 0.5 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.3 ft./sec.
Structure Outlet
Water Depth: 0.7 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 3.4 ft./sec.
(with Meter)
Additional Comments
Beaver regularly dams upstream
Stream Information
Stream Flow: Less than 1/2 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: 0.3 ft.
Bankfull Width: 16 ft.
Wetted Width: 4.4 ft.
Water Velocity: 1.2 ft./sec.
Dominant Substrate: Gravel
Road Information
Sand
County Road
Road Condition: Good
Road Width at Culvert: 22 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 1.5 ft.
Slope: More than 1:2
Downstream
Fill Depth: 3 ft.
Slope: 1:2
Approaches
Left Approach
Length: 525 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.505
Erosion: 1.6068 tons/year
Right Approach
Length: 750 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.543
Erosion: 2.4659 tons/year
Erosion Information
Total Erosion at Crossing: 4.0727 tons/year
Summary Information
Fish Passability 0
1.3 Upstream Miles
These non-native species were observerd at this site: Reed Canarygrass