Road Stream Crossing Site TBW_TBAP227
Thunder Bay River Watershed, Fall Creek
Boilore Road
Alpena Twp,
Alpena County
Information collected by:
Site Location
GPS Coordinates: 45.13386
, -83.51153
T32N
R8E
Sec 30
Structure is NOT Perched
Total Erosion: 0.4971 tons/year
Severity: Minor
Year Inventoried: 2017
Site ID
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Left
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 2
Structure Shape: Pipe Arch
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: None
General Conditions: Fair
Multiple Culverts/Spans | ||||
Culvert/Span | Width | Length | Height | Material |
1 |
3.6 ft. |
40 ft. |
2.4 ft. |
Metal |
2 |
3.6 ft. |
40 ft. |
2.4 ft. |
Metal |
Structure Interior: corrugated
Dimensions of Structure: Length 40 ft.
, Width 3.6 ft.
, Height 2.4 ft.
Percentage Crushed:
Inlet: 1% to 25%
Structure is NOT Perched
Structure Inlet
Water Depth: 1 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0 ft./sec.
Structure Outlet
Water Depth: 0.9 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0 ft./sec.
*Water Velocities were measured 0.4 ft. below Surface
(with Meter)
Additional Comments
CULVERT #1 IS MAIN FLOW/ CULVERT #2 HAD CRUSHING/RIFFLE NOT SAFELY ACCESSIBLE
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 12 ft.
, Width 12 ft.
, Depth 2 ft.
Road Information
Paved
County Road
Road Condition: Poor
Road Width at Culvert: 23 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 2.3 ft.
Slope: 1:2
Downstream
Fill Depth: 2 ft.
Slope: 1:2
Approaches
Left Approach
Length: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 0.4334 tons/year
Right Approach
Length: 196 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.428
Erosion: 0.0637 tons/year
Erosion Information
Total Erosion at Crossing: 0.4971 tons/year
Extent of Erosion: Minor
Erosion is occurring and corrective actions can be installed to address the problem.
Summary Information
These non-native species were observerd at this site: Narrowleaf Cattail, Queen Anne's Lace, Autumn Olive, Glossy Buckthorn, Reed Canary Grass