Road Stream Crossing Site TBW_TBAP123

Thunder Bay River Watershed, King Creek
Nappers Road
Wilson Twp, Alpena County
Information collected by:
Huron Pines
Site Location
GPS Coordinates: 45.00335 , -83.69303
T30N R6E Sec 10
Owned by Private
Fish Passability 0.5
Structure is NOT Perched
Total Erosion: 3.3157 tons/year
Severity: Severe
Year Inventoried: 2017
Site ID
Inlet
Upstream 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
Structure is Rusted through
Dimensions of Structure: Length 58 ft. , Width 5 ft. , Height 5 ft.
Percentage Crushed: In Pipe: 1% to 25%
Structure is NOT Perched
Structure Inlet
Water Depth: 2.1 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 2.2 ft./sec.
Structure Outlet
Water Depth: 2 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 2.6 ft./sec.
*Water Velocities were measured 1.1 ft. below Surface (with Meter)
Stream Information
Stream Flow: More than Bankfull
Riffle Information
Water Depth: 1.7 ft.
Bankfull Width: 5 ft.
Wetted Width: 15 ft.
Water Velocity: 2.2 ft./sec. (Measured with Meter)
Dominant Substrate: Cobble
Road Information
Sand County Road
Road Condition: Fair
Road Width at Culvert: 26 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 4 ft.
Slope: More than 1:2
Downstream
Fill Depth: 2.6 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 0 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0 tons/year
Right Approach
Length: 836 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.554
Erosion: 3.3149 tons/year
Erosion Information
Total Erosion at Crossing: 3.3157 tons/year
Extent of Erosion: Minor
Erosion is occurring and corrective actions can be installed to address the problem.
Location of Erosion
Erosion Dimensions
Eroded Material
Material Eroded
Total Erosion
facing downstream
Length
Width
Depth
Reaching Stream?
(tons/year)
Left Downstream Embankment
3 ft.
1.5 ft.
0.4 ft.
yes
Clay
0.0008
Summary Information
Fish Passability 0.5
Fish Passage is an area of concern for this site. VELOCITY