Road Stream Crossing Site TBW_TBAC168
Thunder Bay River Watershed, Unnamed
Mount Maria Road
Alcona Twp,
Alcona County
Information collected by:
Site Location
GPS Coordinates: 44.8115
, -83.59817
T28N
R7E
Sec 31
Owned by Private
Structure is NOT Perched
Total Erosion: 0.4661 tons/year
Severity: Minor
Year Inventoried: 2017
Site ID
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: Round
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Concrete
Structure Substrate: None
General Conditions: Fair
Structure Interior: smooth
Dimensions of Structure: Length 52 ft.
, Width 2 ft.
, Height 2 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 0.5 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.9 ft./sec.
Structure Outlet
Water Depth: 0.1 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.8 ft./sec.
*Water Velocities were measured 0.2 ft. below Surface
(with Meter)
Additional Comments
Land owner confronted us in a hostile manner so no riffle was taken on his property
Stream Information
Stream Flow: Less than Bankfull
Upstream Pond: Length 5 ft.
, Width 5.5 ft.
, Depth 0.5 ft.
Road Information
Paved
County Road
Road Condition: Fair
Road Width at Culvert: 24.5 ft.
Location of Low Point: Other
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 5.6 ft.
Slope: More than 1:2
Downstream
Fill Depth: 4.5 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: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 0.4617 tons/year
Erosion Information
Total Erosion at Crossing: 0.4661 tons/year
Extent of Erosion: Minor
Notes: CULVERT NOT ALLIGNED WITH FLOW
Location of Erosion | Erosion Dimensions | Eroded Material | Material Eroded | Total Erosion | ||
facing downstream | Length | Width | Depth | Reaching Stream? | (tons/year) | |
Left Upstream Embankment |
3.3 ft. |
3 ft. |
1.5 ft. |
yes |
Loam |
0.0044 |
Summary Information
A future visit to this site is recommended. EROSION SPECIFIED
These non-native species were observerd at this site: Queen Anne's Lace