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FAA 7460-1 › Iowa ›

Building or using a crane near Southeast Iowa Rgnl (BRL)?

Southeast Iowa Rgnl in Burlington, Iowa is a public-use airport. Under 14 CFR 77.9, anything within 20,000 feet of its runways that rises above a 100:1 slope needs FAA Form 7460-1 at least 45 days before construction. Check your exact site free.

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How tall can you build near BRL without filing?

The notice surface rises 1 foot for every 100 feet of horizontal distance from the nearest point of the nearest runway, starting at the runway's elevation. Using the lowest runway-end elevation, 677 ft above sea level:

Distance from nearest runwayNotice required above (height over 677 ft)…which is this elevation (AMSL)
250 ft2 ft680 ft
500 ft5 ft682 ft
1,000 ft10 ft687 ft
2,000 ft20 ft697 ft
3,000 ft30 ft707 ft
5,000 ft50 ft727 ft
7,500 ft75 ft752 ft
10,000 ft100 ft777 ft
15,000 ft150 ft827 ft
20,000 ft200 ft877 ft
Beyond 20,000 ftOnly the 200-ft-above-ground rule applies (77.9(a))

If your ground is lower than 677 ft you can build taller by the difference; if it's higher, less. Cranes count at their maximum height. The free check above uses USGS ground elevation for your exact spot.

Runways and notice boundary

5,000 ftN

Dashed line: the 20,000-ft area where the 100:1 notice slope applies; inner line: 5,000 ft.

RunwayLengthEnd elevations (ft AMSL)
12/305,351 ft692.7 / 698.1
18/366,102 ft695.4 / 677.4

Filing Form 7460-1 near BRL

More: Do I need to file Form 7460-1? · Cranes and Form 7460-1

Other public-use airports nearby

Source: FAA airport, runway and runway-end data (NASR cycle effective 2026/10/01). Screening only — the FAA issues determinations.