Hole-in-the-Wall Falls, Engineered waterfall in Starvation Creek State Park, Oregon.

Hole-in-the-Wall Falls, also called Warren Falls, is a 96-foot man-made waterfall on Warren Creek in Starvation Creek State Park, Hood River County, Oregon. Its main drop is 60 feet, where the creek emerges from a tunnel bored through rock. The falls were created in 1938 when the creek was diverted to prevent washouts of the Columbia River Highway.

The water project came about in 1938 when workers needed to redirect a creek through a rock tunnel. This solution protected the nearby highway from flooding and erosion caused by the water.

The site shows how people connect nature and infrastructure to guide water through the landscape. Visitors see today the result of this practical solution from an earlier time, making visible the relationship between human engineering and natural forces.

The location is reached by a hiking trail that takes about 2 kilometers round trip and climbs only gently. The path is well-maintained and offers interesting views on both sides, especially after rain when water flows abundantly.

The tunnel that now carries Warren Creek was cut in 1938 to stop washouts on the Columbia River Highway. Diverting the creek through it dried up the natural Warren Creek Falls and produced the 96-foot waterfall seen today, whose main drop is 60 feet.