Road Stream Crossing Site CLHW_BC-020
Big Creek Watershed, Big Creek
S Crawford Rd
Au Gres,
Arenac County
Information collected by:
Site Location
GPS Coordinates: 44.07806
, -83.78648
T19N
R6E
Sec 5
Owned by Private
Fish Passability 1
Structure is NOT Perched
Total Erosion: 0 tons/year
Severity: Minor
Year Inventoried: 2016
Site ID
Inlet
Outlet
Upstream Conditions
Downstream 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: Metal
Structure Substrate: Sand
General Conditions: Poor
Structure Interior: smooth
Structure is Rusted through
Dimensions of Structure: Length 19.5 ft.
, Width 37.5 ft.
, Height 13 ft.
Percentage Crushed:
Inlet: 0%
Outlet: 0%
In Pipe: 26% to 50%
Structure is NOT Perched
Structure Inlet
Water Depth: 0.8 ft.
Embedded Depth of Structure: 0.3 ft.
Water Velocity*: 1.1 ft./sec.
Structure Outlet
Water Depth: 0.7 ft.
Embedded Depth of Structure: 0.2 ft.
Water Velocity*: 1.1 ft./sec.
*Water Velocities were measured at the Surface
(with Float Test)
Additional Comments
Riparian buffer has been clear cut up and downstram of crossing
Stream Information
Stream Flow: Less than 1/2 Bankfull
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: 0.7 ft.
Bankfull Width: 24.3 ft.
Wetted Width: 18.4 ft.
Water Velocity: 1.4 ft./sec.
(Measured with Float Test)
Dominant Substrate: Sand
Road Information
Gravel
County Road
Road Condition: Fair
Road Width at Culvert: 17.5 ft.
Location of Low Point: Other
Runoff Path: Ditch
Fill Depth: 0 ft.
Slope: Vertical
Fill Depth: 0 ft.
Slope: Vertical
Approaches
Left Approach
Length: 0 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0 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: 0 tons/year
Summary Information
Fish Passability 1
A future visit to this site is recommended. To survey status of brige, of which is very old