## Facts

- Amphitheaters, Inc. operated a drive-in outdoor movie theater on land adjoining Portland Meadows’ one-mile horse racetrack outside Portland, Oregon.
- Portland Meadows built extensive lighting for night racing, including roughly 350 floodlights (about 1,500 watts each) mounted on 80-foot poles, with large expenditures devoted to illumination.
- Amphitheaters invested approximately $135,000 in its theater and constructed high fences and a “shadow box” around the screen to exclude ambient light and maintain darkness for film projection.
- Light reflected from the racetrack spilled onto the theater screen and impaired picture visibility; the illumination was described as roughly comparable to full moonlight.
- On at least one occasion, Amphitheaters refunded admission fees due to patrons’ inability to view the film adequately.
- After complaints, Portland Meadows installed hoods and louvers on certain lights, reducing but not eliminating spillover.
- Publicity before construction emphasized that the racetrack would be lighted for night racing, and at least some theater promoters knew night lighting was planned when the theater project proceeded.

## Issues

1. Whether rays of light projected onto neighboring land constitute a physical invasion sufficient to support liability for trespass.
2. Whether the racetrack’s night lighting created an actionable private nuisance by substantially and unreasonably interfering with the theater’s use and enjoyment of its land under an objective “ordinary sensibilities” standard.

## Decision

- The Oregon Supreme Court affirmed the directed verdict for Portland Meadows.
- The court held that projected light is not the type of tangible, physical invasion required for trespass; the claim was properly analyzed, if at all, under nuisance law.
- The court held the spillover illumination did not amount to a substantial and unreasonable interference with use and enjoyment of land as measured by persons of ordinary sensibilities.
- The court treated the theater’s need for near-total darkness as an unusually sensitive use that did not expand a neighbor’s duty to curtail an otherwise lawful, reasonable activity.

## Legal Principles

- Trespass generally requires a tangible physical intrusion onto another’s land; intangible intrusions such as light are evaluated under nuisance doctrine rather than trespass.
- Private nuisance liability requires a substantial and unreasonable interference with use and enjoyment of land, judged objectively by the reaction of a person of ordinary sensibilities.
- A defendant is not liable in nuisance merely because a plaintiff’s particular enterprise is unusually sensitive to conditions commonly incident to ordinary neighboring land uses.
- A landowner does not have an absolute, enforceable right to “natural darkness” against reasonable artificial illumination from a lawful adjacent use.

## Conclusion

The court concluded that racetrack lighting causing spillover comparable to moonlight, from a lawful and reasonably operated facility in a developing commercial area, was neither a trespass nor an actionable private nuisance under an ordinary-sensibilities and substantial-interference standard.


Amphitheaters, Inc. v. Portland Meadows, 184 Or. 336, 198 P.2d 847 (Or. 1948)