Building or using a crane near Corsica Muni (D65)?
Corsica Muni in Corsica, South Dakota 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 D65 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, 1,566 ft above sea level:
| Distance from nearest runway | Notice required above (height over 1,566 ft) | …which is this elevation (AMSL) |
|---|---|---|
| 250 ft | 2 ft | 1,568 ft |
| 500 ft | 5 ft | 1,571 ft |
| 1,000 ft | 10 ft | 1,576 ft |
| 2,000 ft | 20 ft | 1,586 ft |
| 3,000 ft | 30 ft | 1,596 ft |
| 5,000 ft | 50 ft | 1,616 ft |
| 7,500 ft | 75 ft | 1,641 ft |
| 10,000 ft | 100 ft | 1,666 ft |
| 15,000 ft | 150 ft | 1,716 ft |
| 20,000 ft | 200 ft | 1,766 ft |
| Beyond 20,000 ft | Only the 200-ft-above-ground rule applies (77.9(a)) | |
If your ground is lower than 1,566 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 20,000-ft area where the 100:1 notice slope applies; inner line: 5,000 ft.
| Runway | Length | End elevations (ft AMSL) |
|---|---|---|
| 17/35 | 3,400 ft | 1580 / 1566 |
Filing Form 7460-1 near D65
- 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
- 8V3 — Parkston Muni (18 nm)
- 8D8 — Lake Andes Muni (18 nm)
- 1D3 — Platte Muni (19 nm)
- AGZ — Wagner Muni (23 nm)
- MHE — Mitchell Muni (26 nm)
- 6A6 — Kimball Muni (32 nm)
Source: FAA airport, runway and runway-end data (NASR cycle effective 2026/10/01). Screening only — the FAA issues determinations.