Road Stream Crossing Site TBW_TBAC95
Thunder Bay River Watershed, Yoder Creek
Welch Road
Mitchell Twp,
Alcona County
Information collected by:
Site Location
GPS Coordinates: 44.72655
, -83.79545
T27N
R5E
Sec 14
Owned by Private
Fish Passability 0.5
Structure is NOT Perched
Total Erosion: 10.4805 tons/year
Severity: Severe
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: Round
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: None
General Conditions: Fair
Structure Interior: corrugated
Dimensions of Structure: Length 63 ft.
, Width 5 ft.
, Height 5 ft.
Percentage Crushed:
In Pipe: 1% to 25%
Structure is NOT Perched
Structure Inlet
Water Depth: 1.3 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 2.3 ft./sec.
Structure Outlet
Water Depth: 1.7 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 2.3 ft./sec.
*Water Velocities were measured 0.3 ft. below Surface
(with Meter)
Stream Information
Stream Flow: Less than 1/2 Bankfull
Scour Pool: Length 23.5 ft.
, Width 11.5 ft.
, Depth 3.2 ft.
Upstream Pond: Length 12 ft.
, Width 11.7 ft.
, Depth 2 ft.
Riffle Information
Water Depth: 1.5 ft.
Bankfull Width: 11 ft.
Wetted Width: 7 ft.
Water Velocity: 2 ft./sec.
(Measured with Meter)
Dominant Substrate: Gravel
Road Information
Gravel
County Road
Road Condition: Fair
Road Width at Culvert: 24 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 6 ft.
Slope: More than 1:2
Downstream
Fill Depth: 5.8 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 3.7686 tons/year
Right Approach
Length: 580 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 1.719
Erosion: 6.5919 tons/year
Erosion Information
Total Erosion at Crossing: 10.4805 tons/year
Extent of Erosion: Minor
Location of Erosion | Erosion Dimensions | Eroded Material | Material Eroded | Total Erosion | ||
facing downstream | Length | Width | Depth | Reaching Stream? | (tons/year) | |
Left Approach |
400 ft. |
1 ft. |
0.3 ft. |
no |
Gravelly Loam |
0.12 |
Summary Information
Fish Passability 0.5
Erosion is an area of concern for this site.
STREAM IS NOT HITTING THE CULVERT ON INLET (TRYING TO BYPASS TO THE RIGHT)