Road Stream Crossing Site TBW_TBAC78
Thunder Bay River Watershed, McGinn Creek
McCullom Lake Road
Mitchell Twp,
Alcona County
Information collected by:
Site Location
GPS Coordinates: 44.78416
, -83.88369
T28N
R5E
Sec 30
Owned by Private
Fish Passability 1
Structure is NOT Perched
Total Erosion: 0.9335 tons/year
Severity: Minor
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: 2
Structure Shape: Round
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Fair
Multiple Culverts/Spans | ||||
Culvert/Span | Width | Length | Height | Material |
1 |
4 ft. |
86 ft. |
4 ft. |
Metal |
2 |
4 ft. |
86 ft. |
4 ft. |
Metal |
Structure Interior: corrugated
Dimensions of Structure: Length 86 ft.
, Width 4 ft.
, Height 4 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 0.9 ft.
Embedded Depth of Structure: 0.1 ft.
Water Velocity*: 1 ft./sec.
Structure Outlet
Water Depth: 0.7 ft.
Embedded Depth of Structure: 1.4 ft.
Water Velocity*: 0.8 ft./sec.
*Water Velocities were measured 0.3 ft. below Surface
(with Meter)
Additional Comments
CULVERT #1 IS HIGHER THAN CULVERT #2 AND HAS NO FLOW AT THE OUTLET
Stream Information
Stream Flow: Less than Bankfull
Riffle Information
Water Depth: 0.5 ft.
Bankfull Width: 7 ft.
Wetted Width: 5.2 ft.
Water Velocity: 0.9 ft./sec.
(Measured with Meter)
Dominant Substrate: Gravel
Road Information
Paved
County Road
Road Condition: Good
Road Width at Culvert: 21 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 8.6 ft.
Slope: More than 1:2
Downstream
Fill Depth: 11 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 0.3957 tons/year
Right Approach
Length: 480 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 1.614
Erosion: 0.5378 tons/year
Erosion Information
Total Erosion at Crossing: 0.9335 tons/year
Extent of Erosion: Stabilized
Summary Information
Fish Passability 1
A future visit to this site is recommended. DRY CULVERT