Road Stream Crossing Site TBW_TBAC92
Thunder Bay River Watershed, Silver Brook
M 65
Mitchell Twp,
Alcona County
Information collected by:
Site Location
GPS Coordinates: 44.77782
, -83.828543
T28N
R5E
Sec 34
Owned by Private
Fish Passability 0
Structure is NOT Perched
Total Erosion: 4.6083 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: Apron
Outlet Type: Outlet Apron
Structure Material: Concrete
Structure Substrate: None
General Conditions: Fair
Structure Interior: smooth
Dimensions of Structure: Length 114 ft.
, Width 4 ft.
, Height 4 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 0.7 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 3.3 ft./sec.
Structure Outlet
Water Depth: 0.55 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 3.9 ft./sec.
*Water Velocities were measured 0.5 ft. below Surface
(with Meter)
Stream Information
Stream Flow: Bankfull
Scour Pool: Length 22.5 ft.
, Width 10 ft.
, Depth 2.5 ft.
Riffle Information
Water Depth: 0.6 ft.
Bankfull Width: 6.7 ft.
Wetted Width: 4.6 ft.
Water Velocity: 2.1 ft./sec.
(Measured with Meter)
Dominant Substrate: Gravel
Road Information
Paved
State Road
Road Condition: Good
Road Width at Culvert: 34 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 10.4 ft.
Slope: More than 1:2
Downstream
Fill Depth: 10.4 ft.
Slope: 1:2
Approaches
Left Approach
Length: 1000 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 2.05
Erosion: 2.3041 tons/year
Right Approach
Length: 1000 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 2.05
Erosion: 2.3041 tons/year
Erosion Information
Total Erosion at Crossing: 4.6083 tons/year
Extent of Erosion: Stabilized
Erosion is occurring and corrective actions can be installed to address the problem.
Summary Information
Fish Passability 0
Fish Passage is an area of concern for this site.
VELOCITY