Road Stream Crossing Site CLHW_DR-005
Devils River Watershed, South Branch Devils River
Scott Rd
Sanborn Twp,
Alpena County
Information collected by:
Site Location
GPS Coordinates: 44.87357
, -83.46508
T29N
R8E
Sec 27
Owned by Private
Fish Passability 0.9
Structure is NOT Perched
Total Erosion: 11.4683 tons/year
Severity: Severe
Year Inventoried: 2016
Site ID
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 2
Structure Shape: Round
Inlet Type: Projecting
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Poor
Multiple Culverts/Spans | ||||
Culvert/Span | Width | Length | Height | Material |
1 |
7 ft. |
47 ft. |
6 ft. |
Metal |
2 |
7 ft. |
47 ft. |
6 ft. |
Metal |
Structure Interior: smooth
Structure is Rusted through
Dimensions of Structure: Length 47 ft.
, Width 7 ft.
, Height 6 ft.
Percentage Crushed:
Inlet: 1% to 25%
Outlet: 0%
In Pipe: 0%
Structure is NOT Perched
Structure Inlet
Water Depth: 1.4 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0 ft./sec.
Structure Outlet
Water Depth: 1.2 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0 ft./sec.
Additional Comments
Beaver Activity is present
Stream Information
Stream Flow: None
Scour Pool: Length 0 ft.
, Width 0 ft.
, Depth 0 ft.
Upstream Pond: Length 0 ft.
, Width 0 ft.
, Depth 0 ft.
Riffle Information
Water Depth: 0 ft.
Bankfull Width: 0 ft.
Wetted Width: 0 ft.
Water Velocity: 0 ft./sec.
Road Information
Gravel
County Road
Road Condition: Fair
Road Width at Culvert: 23 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 10 ft.
Slope: 1:1.5
Downstream
Fill Depth: 12 ft.
Slope: 1:1.5
Approaches
Left Approach
Length: 487 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 1.621
Erosion: 5.003 tons/year
Right Approach
Length: 590 ft.
Slope: 6% to 10%
Vegetation: Heavy
LS Factor: 1.73
Erosion: 6.4654 tons/year
Erosion Information
Total Erosion at Crossing: 11.4683 tons/year
Summary Information
Fish Passability 0.9
Fish Passage is an area of concern for this site.
With beavers contributing to water impoundments, the culverts are too small to handle the amount of water traveling through them
A future visit to this site is recommended. Could be a possible replacement project in the future