Road Stream Crossing Site TBW_TBAC112
Thunder Bay River Watershed, Little Wolf Creek
Tower Road
Mitchell Twp,
Alcona County
Information collected by:
Site Location
GPS Coordinates: 44.71214
, -83.8027
T27N
R5E
Sec 23
Owned by Private
Structure is NOT Perched
Total Erosion: 0.0109 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: Poor
Multiple Culverts/Spans | ||||
Culvert/Span | Width | Length | Height | Material |
1 |
2 ft. |
50 ft. |
2 ft. |
Metal |
2 |
1.4 ft. |
50 ft. |
1.4 ft. |
Metal |
Structure Interior: corrugated
Dimensions of Structure: Length 50 ft.
, Width 2 ft.
, Height 2 ft.
Percentage Crushed:
Inlet: 26% to 50%
Outlet: 26% to 50%
Structure is NOT Perched
Structure Inlet
Water Depth: 0.75 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.5 ft./sec.
Structure Outlet
Water Depth: 0.4 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 3.7 ft./sec.
*Water Velocities were measured 0.3 ft. below Surface
(with Meter)
Additional Comments
FLOODED WITH NO CHANNEL (RIFFLE WAS NOT REACHABLE)
Stream Information
Stream Flow: More than Bankfull
Scour Pool: Length 13 ft.
, Width 6.5 ft.
, Depth 2.4 ft.
Road Information
Paved
County Road
Road Condition: Fair
Road Width at Culvert: 22 ft.
Location of Low Point: Other
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 4 ft.
Slope: 1:1
Downstream
Fill Depth: 3.2 ft.
Slope: 1:1
Approaches
Left Approach
Length: 0 ft.
Slope: 1% to 5%
Vegetation: Partial
LS Factor: 0.22
Erosion: 0 tons/year
Right Approach
Length: 300 ft.
Slope: Less Than 1%
Vegetation: Partial
LS Factor: 0.05
Erosion: 0.0109 tons/year
Erosion Information
Total Erosion at Crossing: 0.0109 tons/year
Summary Information
Fish Passage is an area of concern for this site.
At low flow this culvert will likely be perched