Road Stream Crossing Site ST058
Sturgeon River Watershed, Sturgeon River
Trowbridge Rd
Nunda Twp,
Cheboygan County
Information collected by:
Site Location
GPS Coordinates: 45.222304
, -84.588177
T33N
R02W
Sec 29
Owned by Private
Fish Passability 1
Structure is NOT Perched
Total Erosion: 0.08 tons/year
Severity: Minor
Year Inventoried: 2015
Site ID
Inlet
Outlet
Downstream Conditions
Upstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: Bridge
Structure Shape: Open Bottom Square/Rectangle
Inlet Type: Wingwall 10-30 Degree
Outlet Type: At Stream Grade
Structure Material: Concrete
Structure Substrate: Mixture
General Conditions: Good
Structure Interior: smooth
Dimensions of Structure: Length 30 ft.
, Width 44.6 ft.
, Height 7.4 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 1.4 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 3.7 ft./sec.
Structure Outlet
Water Depth: 2 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 3.7 ft./sec.
*Water Velocities were measured at the Surface
(with Float Test)
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 0 ft.
, Width 0 ft.
, Depth 0 ft.
Upstream Pond: Length 0 ft.
, Width 0 ft.
, Depth 0 ft.
Road Information
Paved
State Road
Road Condition: Fair
Road Width at Culvert: 30 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Fill Depth: 0 ft.
Slope: Vertical
Fill Depth: 0 ft.
Slope: Vertical
Approaches
Left Approach
Length: 105 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.382
Erosion: 0.0398 tons/year
Right Approach
Length: 106 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.382
Erosion: 0.0402 tons/year
Erosion Information
Total Erosion at Crossing: 0.08 tons/year
Summary Information
Fish Passability 1
These non-native species were observerd at this site: Wild parsnip, spotted knapweed