River Ridge Aero Estates Airport

Administrative delisting. The airport was not closed due to a specific incident, military conversion, or major economic failure. It was a private residential airpark that was delisted from official FAA charts and directories. This is a common practice for private airparks to reduce liability, costs, and the regulatory burden associated with being a publicly charted airfield. It transitioned from a charted private airport to a strictly unlisted, private-use facility for residents only.

The site continues to operate as a private, unlisted residential airpark. Satellite imagery confirms that the grass runway remains clear, mowed, and usable. The homes and hangars along the airstrip are well-maintained. The local road providing access to the homes is named 'Airstrip Rd'. The facility is for the exclusive use of the residents of the River Ridge Aero Estates and is not open to the public or available for transient aircraft.

River Ridge Aero Estates was a classic post-war residential airpark, also known as a 'fly-in community'. Its purpose was to provide a lifestyle where residents could live in homes with attached or adjacent hangars and have direct access to a shared runway.

- **Operations:** The airport handled private, light general aviation aircraft, typically single-engine planes owned by the residents. It was never a commercial or public-use airport.
- **Facilities:** It featured a single turf runway, approximately 2,600 feet long, aligned roughly north-south.
- **History:** The airpark was established sometime before 1982. It was identified by the state/private identifier WI21. The ICAO code 'US-10273' is a non-standard identifier used by community-driven databases like OurAirports.com after its official delisting.

There are no known plans or prospects for reopening the airport in an official capacity (i.e., relisting it on public aeronautical charts). Since the airstrip is still actively used privately by residents, a 'reopening' would mean reapplying for official status with the FAA. This is highly unlikely, as the community presumably prefers its current private, unlisted status to avoid the associated regulations and liability.