Road Stream Crossing Site AUS_CR008
Au Sable River Watershed, Au Sable River
Batterson Rd
Frederic Twp,
Crawford County
Information collected by:
Site Location
GPS Coordinates: 44.75808
, -84.76217
T27N
R04W
Sec 11
Owned by Private
Fish Passability 0.5
Structure is NOT Perched
Total Erosion: 0.4242 tons/year
Severity: Moderate
Year Inventoried: 2013
Crossing Information
Type of Crossing: Bridge
Structure Shape: Open Bottom Square/Rectangle
Inlet Type: Other
Outlet Type: At Stream Grade
Structure Material: Wood
Structure Substrate: Gravel
General Conditions: Good
Structure Interior: smooth
Dimensions of Structure: Length 36 ft.
, Width 44 ft.
, Height 5.9 ft.
Structure is NOT Perched
Structure Inlet
Water Depth: 1.6 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 2.94 ft./sec.
Structure Outlet
Water Depth: 1.7 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 2.5 ft./sec.
*Water Velocities were measured at the Surface
(with Float Test)
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 22 ft.
, Width 45 ft.
, Depth 2.1 ft.
Upstream Pond: Length 0 ft.
, Width 0 ft.
, Depth 0 ft.
Riffle Information
Water Depth: 1.3 ft.
Bankfull Width: 48.7 ft.
Wetted Width: 43.2 ft.
Water Velocity: 3.5 ft./sec.
(Measured with Float Test)
Dominant Substrate: Gravel
Road Information
Paved
County Road
Road Condition: Poor
Road Width at Culvert: 30.3 ft.
Location of Low Point: Other
Runoff Path: Roadway
Fill Depth: 0 ft.
Slope: Vertical
Fill Depth: 0 ft.
Slope: Vertical
Approaches
Left Approach
Length: 576 ft.
Slope: 1% to 5%
Vegetation: Partial
LS Factor: 0.67
Erosion: 0.3868 tons/year
Length: 0 ft.
Slope: 0%
Vegetation: Heavy
LS Factor: 0
Erosion: 0 tons/year
Erosion Information
Total Erosion at Crossing: 0.4242 tons/year
Extent of Erosion: Minor
Location of Erosion | Erosion Dimensions | Eroded Material | Material Eroded | Total Erosion | ||
facing downstream | Length | Width | Depth | Reaching Stream? | (tons/year) | |
Left Approach |
170 ft. |
5 ft. |
0.2 ft. |
no |
Sand |
0.0374 |
Summary Information
Fish Passability 0.5