Road Stream Crossing Site TBW_TBAC158
Thunder Bay River Watershed, Unnamed
Lost Lake Trail
Alcona Twp,
Alcona County
Information collected by:
Site Location
GPS Coordinates: 44.78594
, -83.43501
T28N
R8E
Sec 35
Owned by Private
Fish Passability 0
Perch Height: 0.2 ft.
Total Erosion: 1.5961 tons/year
Severity: Severe
Year Inventoried: 2017
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: Pipe Arch
Inlet Type: Projecting
Outlet Type: Freefall into Pool
Structure Material: Metal
Structure Substrate: None
General Conditions: Fair
Structure Interior: corrugated
Dimensions of Structure: Length 33 ft.
, Width 3 ft.
, Height 2 ft.
Perch Height: 0.2 ft.
Structure Inlet
Water Depth: 0.4 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.3 ft./sec.
Structure Outlet
Water Depth: 0.3 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 3.5 ft./sec.
*Water Velocities were measured 0.2 ft. below Surface
(with Meter)
Additional Comments
LOST LAKE WOODS CLUB PROPERTY
Stream Information
Stream Flow: Less than 1/2 Bankfull
Scour Pool: Length 15.6 ft.
, Width 14 ft.
, Depth 1.2 ft.
Riffle Information
Water Depth: 0.2 ft.
Bankfull Width: 7.3 ft.
Wetted Width: 5 ft.
Water Velocity: 1 ft./sec.
(Measured with Meter)
Dominant Substrate: Gravel
Road Information
Sand
Private Road
Road Condition: Fair
Road Width at Culvert: 19 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 1.8 ft.
Slope: 1:1
Downstream
Fill Depth: 2.6 ft.
Slope: 1:2
Approaches
Left Approach
Length: 292 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.457
Erosion: 0.6982 tons/year
Right Approach
Length: 363 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.473
Erosion: 0.8979 tons/year
Erosion Information
Total Erosion at Crossing: 1.5961 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
These non-native species were observerd at this site: Queen Anne's Lace