Airport information
- FAA LID
- O55
- Coordinates
- 41.1396, -121.1240
- Elevation
- 4,158 ft MSL
- Magnetic variation
- 17E
- Sectional chart
- KLAMATH FALLS
- Airport use
- Public
- Control tower
- No
- ARTCC
- SEATTLE (ZSE)
- Flight service (FSS)
- RANCHO MURIETA
- NOTAM facility
- RIU
- Attendance
- UNATNDD
- Beacon
- white-green (SS-SR)
- Segmented circle
- Yes
- Wind indicator
- lighted
- Activated
- 1946/09
- Distance from city
- 2 NE
Weather
METAR observed
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TAF forecast
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Sun & FAA night 2026-06-21
| Event | Local (PDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 04:58 AM | 11:58Z |
| Sunrise | 05:32 AM | 12:32Z |
| Sunset | 08:41 PM | 03:41Z |
| Evening civil twilight Loggable night begins | 09:14 PM | 04:14Z |
Plan a flight from O55
Night operations
- Airport lighting
- SEE RMK
- Rotating beacon
- white-green · SS-SR
- Pilot-controlled lighting
- ACTVT LIRL RWY 04/22 - CTAF. on 122.9 — Chart Supplement ↗
FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are in the live weather panel above.
Traffic pattern
- Landing
- Rwy 04
- Pattern
- left (turns left)
- TPA
- 5,200 ft MSL (≈1,000 AGL)
- CTAF
- 122.9
Enter the left downwind for Rwy 04 at 5,200 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).
Runway 04/22
2,980 ft × 35 ft · Asphalt (Fair)- Heading
- n/a
- Markings
- basic
- Traffic pattern
- Left
- Approach obstacle
- Trees, 65 ft, 1,600 ft from threshold, 100 ft R of centerline — 21:1 slope to clear
- Heading
- n/a
- Markings
- basic
- Traffic pattern
- Left
- Approach obstacle
- Road, 15 ft, 200 ft from threshold, 100 ft L of centerline
- Displaced threshold
- 385 ft
| Runway | Length | Your margin |
|---|---|---|
| 04/22 | 2,980 ft |
No published frequencies or nearby navaids for O55.
Chart Supplement FAA A/FD
Open PDF ↗Preview Chart Supplement
VFR sectional
Services
- Bottled oxygen
- NONE
- Bulk oxygen
- NONE
- Airframe service
- NONE
- Powerplant service
- NONE
- Parking
- tiedowns
Ownership & management
Remarks FAA
- PREDATES TO 1958 FA ACT.
- FOR CD CTC SEATTLE ARTCC AT 253-351-3694.
- ACTVT LIRL RWY 04/22 - CTAF.
- LASSEN COUNTY DEPUTY DIRECTOR OF PUBLIC WORKS.
- PUBLIC WORKS DEPARTMENT, SUSANVILLE.
- +3' FENCE 0-60' DIAGONALLY ACROSS PRIMARY SURFACE.
- APCH RATIO 20:1 TO DSPLCD THLD.
Nearby airports
Weather is live from the Aviation Weather Center; airport facility data is from the FAA NASR (28-day cycle). For planning and education only; always verify against official sources. Open O55 in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator. Planning from here? Find the nearest airport with fuel or an approach, or check whether an IFR alternate is required.
About O55
Southard Field (O55) is an airport in Bieber, CA, at 4,158 ft MSL. It has 1 runway, the longest 2,980 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for O55, refreshed from the Aviation Weather Center and FAA NASR.
Does O55 have a control tower?
No. Southard Field is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM on the Comms & NavAids tab.
What is the longest runway at O55?
Southard Field has 1 runway; the longest is 2,980 ft. See the Runways tab for headings, surface, and lighting.
Where is O55?
Southard Field is in Bieber, CA, at an elevation of 4,158 ft MSL. Coordinates: 41.1396, -121.1240.
Fly out of O55 often?
Save O55 as your home base in the SkyReady app for a one-tap Go/No-Go readiness brief, weather alerts, and automatic FAA currency — free to log.