FAA 7460-1 › Idaho ›
Building or using a crane near Craigmont Muni (S89)?
Craigmont Muni in Craigmont, Idaho is a public-use airport. Under 14 CFR 77.9, anything within 10,000 feet of its runways that rises above a 50:1 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 S89 without filing?
The notice surface rises 1 foot for every 50 feet of horizontal distance from the nearest point of the nearest runway, starting at the runway's elevation. Using the lowest runway-end elevation, 3,805 ft above sea level:
| Distance from nearest runway | Notice required above (height over 3,805 ft) | …which is this elevation (AMSL) |
|---|---|---|
| 250 ft | 5 ft | 3,810 ft |
| 500 ft | 10 ft | 3,815 ft |
| 1,000 ft | 20 ft | 3,825 ft |
| 2,000 ft | 40 ft | 3,845 ft |
| 3,000 ft | 60 ft | 3,865 ft |
| 5,000 ft | 100 ft | 3,905 ft |
| 7,500 ft | 150 ft | 3,955 ft |
| 10,000 ft | 200 ft | 4,005 ft |
| Beyond 10,000 ft | Only the 200-ft-above-ground rule applies (77.9(a)) | |
If your ground is lower than 3,805 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
Dashed line: the 10,000-ft area where the 50:1 notice slope applies; inner line: 5,000 ft.
| Runway | Length | End elevations (ft AMSL) |
|---|---|---|
| 07/25 | 2,800 ft | — / — |
Filing Form 7460-1 near S89
- 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
- 0S5 — Nezperce Muni (10 nm)
- S68 — Orofino Muni (17 nm)
- S73 — Kamiah Muni (19 nm)
- I45 — Wapshilla (22 nm)
- LWS — Lewiston/nez Perce County (24 nm)
- GIC — Idaho County (24 nm)
Source: FAA airport, runway and runway-end data (NASR cycle effective 2026/10/01). Screening only — the FAA issues determinations.