Road Stream Crossing Site UBR_MB10.5
Upper Black River Watershed, Unknown
Osmun Rd
Nunda Twp,
Cheboygan County
Information collected by:
Site Location
GPS Coordinates: 45.24545
, -84.40714
T33N
R1W
Sec 14
Owned by State
Fish Passability 0.9
Structure is NOT Perched
Total Erosion: 1.5891 tons/year
Severity: Moderate
Year Inventoried: 2014
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Right
Road Approach - Left
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 1
Structure Shape: Round
Inlet Type: Trash Rack
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: None
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 29.2 ft.
, Width 1.3 ft.
, Height 1.3 ft.
Percentage Plugged:
Inlet: 76% to 100%
Outlet: 0%
In Pipe: 0%
Structure is NOT Perched
Structure Inlet
Water Depth: 0.3 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.8 ft./sec.
Structure Outlet
Water Depth: 0.3 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.6 ft./sec.
*Water Velocities were measured 0.15 ft. below Surface
(with Meter)
Additional Comments
PRC; scour pool and upstream pond size estimated; wetland area
Stream Information
Stream Flow: Less than 1/2 Bankfull
Scour Pool: Length 1.3 ft.
, Width 6.8 ft.
, Depth 1.1 ft.
Upstream Pond: Length 25 ft.
, Width 45.4 ft.
, Depth 3.5 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: 18 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 1 ft.
Slope: 1:2
Downstream
Fill Depth: 1.6 ft.
Slope: 1:2
Approaches
Left Approach
Length: 586.7 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.517
Erosion: 1.5051 tons/year
Right Approach
Length: 0 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0 tons/year
Erosion Information
Total Erosion at Crossing: 1.5891 tons/year
Extent of Erosion: Moderate
Erosion is occurring and corrective actions can be installed to address the problem.
Location of Erosion | Erosion Dimensions | Eroded Material | Material Eroded | Total Erosion | ||
facing downstream | Length | Width | Depth | Reaching Stream? | (tons/year) | |
Right Upstream Streambank |
6 ft. |
14 ft. |
2 ft. |
yes |
Gravelly Loam |
0.084 |
Summary Information
Fish Passability 0.9
Fish Passage is an area of concern for this site.
plugged culvert
A future visit to this site is recommended. plugged culvert; flooding in high rain?