Other · 2026
Mineral Extraction/Quarry
Rochester, MN · near Rochester Intl (0.9 mi)
What this outcome means
The FAA studied the proposal and concluded it would not be a hazard to air navigation. A no-hazard determination is not permanent — it carries an expiration date, and if the structure is not built by then the case has to be re-filed.
The proposal, in the filer's words
"The proposal is for the extraction of limestone (rock\nquarry). The first phase of the quarry will be located in\nSW Rochester MN (in city limits). The existing site\nslopes from West to East with elevations ranging from\n1274 down to 1208. The proposed quarry will have a\nfloor target elevation of 1210 about 100 feet lower\nthan the airport runways. Quarry excavation will begin\non the northern area of the limits identified on the\nplans to create a face of rock approximately 50 feet in\nheight (excavated so no impact on flight paths).\nExpansion will work to the south and west. The bottom\nof the quarry will be connected to the adjacent ravines\nto the north which are lower in elevation that the\nquarry bottom. This ensures gravity drainage of any\nstormwater or groundwater seeping into the excavated\nbottom. There will be no ponding of water that could\nattract water fowl and stormwater treatment measures\nwill draw down within 48 hours of a rainfall event. The\ncondition of no standing water within the site will be a\ncondition of approval for a permit by the City of\nRochester. Blasting of limestone materials is performed\nunder controlled and monitored operations with limited\nrise in elevation or creation of dust."
Filing details
- Case number (ASN)
- 2026-AGL-5331-OE
- Structure
- Mineral Extraction/Quarry
- Type
- Other
- Category
- Other
- Height above ground
- 6 ft
- Height above sea level
- 1,283 ft
- Site elevation
- 1,277 ft
- Notice of
- New Construction
- Duration
- Permanent
- Marking & lighting
- —
Timeline
- Filed
- April 3, 2026
- Determined
- May 11, 2026
- Determination expires
- November 11, 2027
A determination that lapses before the structure is built has to be re-filed. The FAA does not send a reminder.
Who filed it
- Sponsor
- Olmsted Aggregate
- Representative
- Mark Welch
Names are shown as they appear in the FAA's public record. How we handle names
Location
- Coordinates
- 43.920751, -92.493370
- Degrees / minutes / seconds
- 43°55'14.7"N 92°29'36.1"W
- County
- Olmsted
- Open in a map
- Google MapsOpenStreetMap
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About this record
This page is a readable copy of a public record published by the FAA's Obstruction Evaluation / Airport Airspace Analysis system. It is not the official record and may lag it. For the authoritative case status, search this ASN at the FAA's OE/AAA portal. If something here is wrong, email support@idea-engine.studio and we will correct it.
Source: FAA Obstruction Evaluation / Airport Airspace Analysis (OE/AAA) public archive (oeaaa.faa.gov), data as of September 12, 2026. Compiled by LOS Analyzer (Idea Engine LLC). This is not an official FAA record or an FAA determination; the FAA's portal is authoritative. LOS Analyzer is not affiliated with or endorsed by the FAA.
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