Road Stream Crossing Site TBW_TBAP124
Thunder Bay River Watershed, King Creek
Nappers Road
Wilson Twp,
Alpena County
Information collected by:
Site Location
GPS Coordinates: 45.00359
, -83.68125
T30N
R6E
Sec 11
Owned by Private
Fish Passability 0.5
Structure is NOT Perched
Total Erosion: 0.3444 tons/year
Severity: Moderate
Year Inventoried: 2017
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
other
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: Gravel
General Conditions: Fair
Structure Interior: corrugated
Dimensions of Structure: Length 50 ft.
, Width 6 ft.
, Height 6 ft.
Percentage Plugged:
Inlet: 1% to 25%
Percentage Crushed:
In Pipe: 1% to 25%
Structure is NOT Perched
Structure Inlet
Water Depth: 2.3 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 2.2 ft./sec.
Structure Outlet
Water Depth: 2.1 ft.
Embedded Depth of Structure: 0.1 ft.
Water Velocity*: 1.5 ft./sec.
*Water Velocities were measured 0.8 ft. below Surface
(with Meter)
Stream Information
Stream Flow: More than Bankfull
Riffle Information
Water Depth: 2.1 ft.
Bankfull Width: 6 ft.
Wetted Width: 30 ft.
Water Velocity: 1.1 ft./sec.
(Measured with Meter)
Dominant Substrate: Sand
Road Information
Sand
County Road
Road Condition: Fair
Road Width at Culvert: 25 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 1 ft.
Slope: 1:1
Downstream
Fill Depth: 1 ft.
Slope: 1:1
Approaches
Left Approach
Length: 0 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0 tons/year
Right Approach
Length: 1000 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.3444 tons/year
Erosion Information
Total Erosion at Crossing: 0.3444 tons/year
Extent of Erosion: Minor
Erosion is occurring and corrective actions can be installed to address the problem.
Summary Information
Fish Passability 0.5
Fish Passage is an area of concern for this site.
These non-native species were observerd at this site: Purple Vetch