Building or using a crane near W P H S (P99)?
W P H S in Mount Pleasant, Pennsylvania is a public-use heliport. Under 14 CFR 77.9, anything within 5,000 feet of it that rises above a 25:1 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 P99 without filing?
The notice surface rises 1 foot for every 25 feet of horizontal distance from the nearest point of the heliport, starting at the heliport's elevation. Using the lowest facility elevation, 1,090 ft above sea level:
| Distance from heliport | Notice required above (height over 1,090 ft) | …which is this elevation (AMSL) |
|---|---|---|
| 250 ft | 10 ft | 1,100 ft |
| 500 ft | 20 ft | 1,110 ft |
| 1,000 ft | 40 ft | 1,130 ft |
| 2,000 ft | 80 ft | 1,170 ft |
| 3,000 ft | 120 ft | 1,210 ft |
| 5,000 ft | 200 ft | 1,290 ft |
| Beyond 5,000 ft | Only the 200-ft-above-ground rule applies (77.9(a)) | |
If your ground is lower than 1,090 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.
Heliport location and notice boundary
Dashed line: the 5,000-ft area where the 25:1 notice slope applies.
Filing Form 7460-1 near P99
- File online through the FAA's OE/AAA system at least 45 days before construction or before applying for a building permit, whichever is first. Filing is free.
- You need NAD 83 coordinates, site ground elevation, structure height above ground and above sea level.
- Construction on airport property always needs notice, whatever the height.
More: Do I need to file Form 7460-1? · Cranes and Form 7460-1
Other public-use airports nearby
- P45 — Mount Pleasant/scottdale (0 nm)
- VVS — Joseph A Hardy Connellsville (10 nm)
- LBE — Arnold Palmer Rgnl (12 nm)
- FWQ — Rostraver (14 nm)
- 5G8 — Greensburg Jeannette Rgnl (16 nm)
- G05 — Finleyville Airpark (23 nm)
Source: FAA airport, runway and runway-end data (NASR cycle effective 2026/10/01). Screening only — the FAA issues determinations.