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Williamson/Sodus traffic pattern

Pattern altitude at Williamson/Sodus (SDC · KSDC) is 1,400 ft MSL · 976 AGL as published by the FAA, and every runway end is standard left traffic. · Open on the map

All of Williamson/Sodus — runways, frequencies, charts and live weather

Pattern diagram

Drawn to scale from the FAA NASR runway alignments and the per end right traffic flags — pick a runway to see its pattern. Live wind picks the favored runway when KSDC reports it.

5,000 ftNMNxw 010°downwind 280°base 190°final 100°45° entry1028

RWY 10LEFT traffic

Heading
100° mag · 088° true
Dimensions
3,803 × 60 ft
TPA
1,400 ft MSL · 976 AGL · charted
Surface
Asphalt
Lights
2-light PAPI (left) (3°)
CTAF
122.8

Enter the left downwind (heading 280°) on the 45° at 1,400 ft MSL.

More details — RWY 10
Threshold elev
424 ft
Markings
nonprecision
Approach obstacle
Trees, 30 ft, 261 ft from threshold, 177 ft L of centerline — 2:1 slope to clear · penetrates the 20:1 visual approach surface
Threshold crossing height
40 ft
TDZ elevation
424 ft
End lights
REIL

Condition: Good. Edge lights: Med. Weight bearing: Single wheel 12k.

Pattern side: FAA NASR · TPA charted (NASR) · layout: FAA runway-end coordinates

Pattern direction by runway

RunwayPatternHeadingPattern altitude
10 Left traffic 100° mag 1,400 ft MSL · 976 AGL
28 Left traffic 280° mag 1,400 ft MSL · 976 AGL

Pattern altitude is published for KSDC in the FAA NASR data. Headings are the runway alignment; downwind is the reciprocal.

Flying the pattern at KSDC

Williamson/Sodus is non towered, so the pattern is self announced on CTAF 122.8. AC 90-66B asks for a report on entry and on each leg, and for the standard 45° entry to downwind at pattern altitude.

All ends are left traffic, which is the FAR 91.126 default — turns to the left unless the field charts otherwise. The full entry procedure is here →

Frequently asked

What is the traffic pattern altitude at KSDC?

The FAA publishes a traffic pattern altitude of 976 ft AGL for Williamson/Sodus, which is 1,400 ft MSL on the altimeter with the field at 424 ft.

Does KSDC have right traffic?

No. All 2 runway ends at Williamson/Sodus use standard left traffic, so no right pattern is charted here.

What frequency is the pattern on at KSDC?

Williamson/Sodus is non towered, so pattern position reports go on the CTAF, 122.8. AC 90-66B asks for self announcing on entry and on each leg.

More about KSDC

Pattern direction and alignment are drawn from the FAA NASR (28-day cycle); the diagram is generated, not an FAA chart. Pattern altitude is shown as published where NASR carries one, otherwise as the AC 90-66B 1,000 ft AGL convention. For planning and education only; always verify against the Chart Supplement.

Something here wrong or out of date? Report a data problem.