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FAA 7460-1 › California ›

Building or using a crane near Agua Dulce (L70)?

Agua Dulce in Agua Dulce, California 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.

No address handy? Try 16700 Saticoy St, Van Nuys, CA 91406

How tall can you build near L70 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, 2,556 ft above sea level:

Distance from nearest runwayNotice required above (height over 2,556 ft)…which is this elevation (AMSL)
250 ft2 ft2,558 ft
500 ft5 ft2,561 ft
1,000 ft10 ft2,566 ft
2,000 ft20 ft2,576 ft
3,000 ft30 ft2,586 ft
5,000 ft50 ft2,606 ft
7,500 ft75 ft2,631 ft
10,000 ft100 ft2,656 ft
15,000 ft150 ft2,706 ft
20,000 ft200 ft2,756 ft
Beyond 20,000 ftOnly the 200-ft-above-ground rule applies (77.9(a))

If your ground is lower than 2,556 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)
04/224,205 ft2556 / 2633

Filing Form 7460-1 near L70

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.