Road Stream Crossing Site E20
Maple River Watershed, East Branch Maple River
Douglas Lake Rd
McKinley Twp,
Emmet County
Information collected by:
Site Location
GPS Coordinates: 45.57275
, -84.74525
T37N
R4W
Sec 25
Owned by Other
Structure is NOT Perched
Total Erosion: 0.0412 tons/year
Severity: Severe
Year Inventoried: 2014
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: None
General Conditions: Fair
Multiple Culverts/Spans | ||||
Culvert/Span | Width | Length | Height | Material |
1 |
6 ft. |
55 ft. |
6 ft. |
Metal |
2 |
6 ft. |
55 ft. |
6 ft. |
Metal |
Structure Interior: corrugated
Structure is Rusted through
Dimensions of Structure: Length 55 ft.
, Width 6 ft.
, Height 6 ft.
Percentage Plugged:
Inlet: 1% to 25%
Outlet: 0%
In Pipe: 0%
Percentage Crushed:
Inlet: 1% to 25%
Outlet: 0%
In Pipe: 0%
Structure is NOT Perched
Structure Inlet
Water Depth: 1.8 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 3.3 ft./sec.
Structure Outlet
Water Depth: 1.5 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 7.6 ft./sec.
*Water Velocities were measured 0.3 ft. below Surface
(with Meter)
Additional Comments
Landowner is U of M.
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 40 ft.
, Width 20 ft.
, Depth 5 ft.
Upstream Pond: Length 0 ft.
, Width 0 ft.
, Depth 0 ft.
Riffle Information
Water Depth: 1.2 ft.
Bankfull Width: 22 ft.
Wetted Width: 18 ft.
Water Velocity: 0.8 ft./sec.
(Measured with Meter)
Dominant Substrate: Gravel
Road Information
Paved
County Road
Road Condition: Fair
Road Width at Culvert: 31 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 3.5 ft.
Slope: 1:1
Downstream
Fill Depth: 3.5 ft.
Slope: 1:1
Approaches
Left Approach
Length: 25 ft.
Slope: Less Than 1%
Vegetation: Partial
LS Factor: 0.05
Erosion: 0.0013 tons/year
Right Approach
Length: 100 ft.
Slope: 1% to 5%
Vegetation: Partial
LS Factor: 0.39
Erosion: 0.04 tons/year
Erosion Information
Total Erosion at Crossing: 0.0412 tons/year
Extent of Erosion: Moderate
Summary Information
Fish Passage is an area of concern for this site.
Yes, water velocity is too high for fish.
A future visit to this site is recommended.
Yes, major downstream pooling.