Road Stream Crossing Site AUS_PR156
Au Sable River Watershed, McGillis Creek
F-30
Mikado Twp,
Alcona County
Information collected by:
Site Location
GPS Coordinates: 44.59069
, -83.52605
T25N
R07E
Sec 1
Owned by Private
Fish Passability 0.9
Structure is NOT Perched
Total Erosion: 0.797 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: Headwall
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 50 ft.
, Width 9.2 ft.
, Height 7 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 1.6 ft.
Embedded Depth of Structure: 0.5 ft.
Water Velocity*: 1.2 ft./sec.
Structure Outlet
Water Depth: 0.8 ft.
Embedded Depth of Structure: 0.2 ft.
Water Velocity*: 1.2 ft./sec.
(with Meter)
Additional Comments
Pool forming at outlet but does not seem to be caused by culvert.
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: 0.6 ft.
Bankfull Width: 22 ft.
Wetted Width: 18 ft.
Water Velocity: 1.8 ft./sec.
(Measured with Meter)
Dominant Substrate: Gravel
Road Information
Paved
County Road
Road Condition: Good
Road Width at Culvert: 30 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 1.8 ft.
Slope: More than 1:2
Downstream
Fill Depth: 1.8 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 565 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.513
Erosion: 0.2874 tons/year
Right Approach
Length: 915 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.562
Erosion: 0.5095 tons/year
Erosion Information
Total Erosion at Crossing: 0.797 tons/year
Summary Information
Fish Passability 0.9
A future visit to this site is recommended. pool is forming at outlet.
These non-native species were observerd at this site: Autumn Olive