Road Stream Crossing Site TBW_TBAC93
Thunder Bay River Watershed, Silver Creek
M 65
Mitchell Twp,
Alcona County
Information collected by:
Site Location
GPS Coordinates: 44.756704
, -83.809788
T27N
R5E
Sec 03
Owned by Private
Fish Passability 1
Structure is NOT Perched
Total Erosion: 1.5074 tons/year
Severity: Moderate
Year Inventoried: 2017
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: Square/Rectangle
Inlet Type: Wingwall 30-70 Degree
Outlet Type: Outlet Apron
Structure Material: Concrete
Structure Substrate: Sand
General Conditions: Good
Structure Interior: smooth
Dimensions of Structure: Length 100 ft.
, Width 10 ft.
, Height 6 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 1.6 ft.
Embedded Depth of Structure: 1 ft.
Water Velocity*: 1.7 ft./sec.
Structure Outlet
Water Depth: 1.1 ft.
Embedded Depth of Structure: 1.5 ft.
Water Velocity*: 1.4 ft./sec.
*Water Velocities were measured 0.5 ft. below Surface
(with Meter)
Stream Information
Stream Flow: Bankfull
Riffle Information
Water Depth: 2.1 ft.
Bankfull Width: 10 ft.
Wetted Width: 8 ft.
Water Velocity: 1.6 ft./sec.
(Measured with Meter)
Dominant Substrate: Silt
Road Information
Paved
State Road
Road Condition: Good
Road Width at Culvert: 40 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 9 ft.
Slope: 1:2
Downstream
Fill Depth: 9.5 ft.
Slope: 1:2
Approaches
Left Approach
Length: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 0.7537 tons/year
Right Approach
Length: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 0.7537 tons/year
Erosion Information
Total Erosion at Crossing: 1.5074 tons/year
Extent of Erosion: Stabilized
Erosion is occurring and corrective actions can be installed to address the problem.
Summary Information
Fish Passability 1
These non-native species were observerd at this site: Mullein