Boulder Municipal Airport traffic pattern

Pattern altitude at Boulder Municipal Airport (BDU · KBDU · WBU) is 6,300 ft MSL · 1,012 AGL as published by the FAA, and 26, 26G are charted right traffic.

All of Boulder Municipal Airport — 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 KBDU reports it.

RWY 26RIGHT trafficRP · charted

Heading: 258° mag · 270° true
Dimensions: 4,100 × 75 ft
TPA: 6,300 ft MSL · 1,012 AGL · charted
Surface: Asphalt
Lights: 4-light PAPI (left) (3.5°)
CTAF: 122.725

Enter the right downwind (heading 078°) on the 45° at 6,300 ft MSL.

More details — RWY 26

Threshold elev: 5,279 ft
Markings: basic
Threshold crossing height: 40 ft
TDZ elevation: 5,279 ft
Declared TORA/TODA/ASDA/LDA: 4,100 / 4,100 / 3,900 / 3,900 ft
End lights: TDZ

Condition: Excellent. Edge lights: Med. Weight bearing: Single wheel 16k. PCN 11.

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

Pattern direction by runway

Runway	Pattern	Heading	Pattern altitude
08	Left traffic	078° mag	6,300 ft MSL · 1,012 AGL
26	Right traffic	258° mag	6,300 ft MSL · 1,012 AGL
08G	Left traffic	—	6,300 ft MSL · 1,012 AGL
26G	Right traffic	—	6,300 ft MSL · 1,012 AGL

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

Flying the pattern at KBDU

Boulder Municipal Airport is non towered, so the pattern is self announced on CTAF 122.725. AC 90-66B asks for a report on entry and on each leg, and for the standard 45° entry to downwind at pattern altitude.

Watch the right traffic ends here: 26, 26G. A right pattern at a field where the other end is left is the single most common place to end up pointing at opposing traffic. The full entry procedure is here →

Frequently asked

What is the traffic pattern altitude at KBDU?

The FAA publishes a traffic pattern altitude of 1,012 ft AGL for Boulder Municipal Airport, which is 6,300 ft MSL on the altimeter with the field at 5,288 ft.

Does KBDU have right traffic?

Yes, on 2 runway ends: 26, 26G. Every other end at Boulder Municipal Airport is standard left traffic.

What frequency is the pattern on at KBDU?

Boulder Municipal Airport is non towered, so pattern position reports go on the CTAF, 122.725. AC 90-66B asks for self announcing on entry and on each leg.

More about KBDU

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.