Road Stream Crossing Site ST069
Sturgeon River Watershed, Allen Creek
Allen Creek Rd
Wilmot Twp,
Cheboygan County
Information collected by:
Site Location
GPS Coordinates: 45.236338
, -84.633651
T33N
R03W
Sec 23
Owned by State
Fish Passability 0
Perch Height: 0.2 ft.
Total Erosion: 1.5329 tons/year
Severity: Severe
Year Inventoried: 2015
Site ID
Inlet
Outlet
Downstream Conditions
Upstream 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: Freefall into Pool
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 24.9 ft.
, Width 1.5 ft.
, Height 1.5 ft.
Percentage Plugged:
Inlet: 1% to 25%
Outlet: 0%
In Pipe: 0%
Perch Height: 0.2 ft.
Structure Inlet
Water Depth: 0.6 ft.
Embedded Depth of Structure: 0.1 ft.
Water Velocity*: 1.7 ft./sec.
Structure Outlet
Water Depth: 1.6 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.7 ft./sec.
*Water Velocities were measured at the Surface
(with Float Test)
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 7.2 ft.
, Width 8 ft.
, Depth 1.6 ft.
Upstream Pond: Length 0 ft.
, Width 0 ft.
, Depth 0 ft.
Riffle Information
Water Depth: 0.3 ft.
Bankfull Width: 6.6 ft.
Wetted Width: 5.8 ft.
Water Velocity: 1.3 ft./sec.
(Measured with Float Test)
Dominant Substrate: Sand
Road Information
Gravel
State Road
Road Condition: Poor
Road Width at Culvert: 9.5 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1.4 ft.
Slope: 1:2
Downstream
Fill Depth: 2.2 ft.
Slope: 1:2
Approaches
Left Approach
Length: 48.1 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.327
Erosion: 0.0412 tons/year
Right Approach
Length: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 1.4917 tons/year
Erosion Information
Total Erosion at Crossing: 1.5329 tons/year
Summary Information
Fish Passability 0
Fish Passage is an area of concern for this site.
perched
A future visit to this site is recommended. Perched and undersized culvert