Road Stream Crossing Site AUS_OS094
Au Sable River Watershed, Tributary of Au Sable River
Cherry Creek Rd
Big Creek Twp,
Oscoda County
Information collected by:
Site Location
GPS Coordinates: 44.68143
, -84.20233
T26N,27N
R02E,02E
Sec 4,33
Owned by Private
Fish Passability 0
Perch Height: 0.7 ft.
Total Erosion: 0.6622 tons/year
Severity: Severe
Year Inventoried: 2013
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 1
Structure Shape: Round
Inlet Type: Projecting
Outlet Type: Freefall into Pool
Structure Material: Metal
Structure Substrate: None
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 115 ft.
, Width 2 ft.
, Height 2 ft.
Perch Height: 0.7 ft.
Structure Inlet
Water Depth: 0.7 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.33 ft./sec.
Structure Outlet
Water Depth: 1 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 1.03 ft./sec.
*Water Velocities were measured at the Surface
(with Float Test)
Additional Comments
Heavy rain for the previous two days. Crossing located along Big Creek and Elmer township line. Downstream flows into a marsh so we are unable to measure in riffle.
Stream Information
Stream Flow: Less than Bankfull
Scour Pool: Length 13 ft.
, Width 8 ft.
, Depth 1.6 ft.
Upstream Pond: Length 0 ft.
, Width 0 ft.
, Depth 0 ft.
Riffle Information
Water Depth: 0 ft.
Bankfull Width: 0 ft.
Wetted Width: 0 ft.
Water Velocity: 0 ft./sec.
Road Information
Paved
County Road
Road Condition: Poor
Road Width at Culvert: 26 ft.
Location of Low Point: At Stream
Runoff Path: Roadway
Embankments
Upstream
Fill Depth: 15 ft.
Slope: More than 1:2
Downstream
Fill Depth: 15 ft.
Slope: More than 1:2
Approaches
Left Approach
Length: 415 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.483
Erosion: 0.1723 tons/year
Right Approach
Length: 1000 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.57
Erosion: 0.4899 tons/year
Erosion Information
Total Erosion at Crossing: 0.6622 tons/year
Extent of Erosion: Minor
Notes: Downstream scour pool
Summary Information
Fish Passability 0
Fish Passage is an area of concern for this site.
Culvert length is over 100 feet