Road Stream Crossing Site TBW_TBAP123
Thunder Bay River Watershed, King Creek
Nappers Road
Wilson Twp,
Alpena County
Information collected by:
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