Runner Conquers Steep Kensico Dam Trail

David Roher reached the summit of the Kensico Reservoir dam on May 7, 2026, completing a 10-mile run that began before dawn. The route required scaling a steep, loose dirt path and a set of narrow concrete stairs to reach the top of the 307-foot structure. Roher, a USAT-certified triathlon coach, finished the climb and the subsequent run across the dam before 7:30 a.m.

The run is part of a training regimen for an upcoming Ironman event. Roher has been running to the reservoir for five weeks, using the structure as a landmark for his long runs. The dam serves as a significant physical and mental marker in his routine, located in Westchester County, New York, near the towns of Armonk, Harrison, Valhalla, and White Plains.

Roher’s approach to the dam involves running through suburban streets still quiet in the early morning. He notes the contrast between the residential areas with stone walls and hedges and the wooded sections where the road winds beneath oak and maple trees. The air carries the smell of wet earth and cut grass as he approaches the clearing where the reservoir sits.

The climb to the top of the dam proved difficult. The dirt path on the side of the stone walls was soft and loose, causing Roher’s shoes to slide as he attempted to gain elevation. He described the terrain as challenging, comparing the effort to scaling a cliff after rain. At the one-third mark of the ascent, he encountered concrete stairs that lacked railings, adding to the difficulty.

After reaching the summit, Roher found a small guard house structure perched on the dam. He searched for a plaque or marker explaining the building's purpose but found none. He then began the run across the dam, with each step echoing off the carved stones. He had planned a shower and prayers for after the run, all to be completed before the late morning deadline.

The Kensico Dam was built in 1885 and later became the Kensico Reservoir. The village of Kensico was flooded to create the body of water. The name originates from Coken-se-co, a Siwanoy Indian chief who signed the deed for the city of White Plains. Roher, who was born in White Plains, recalls watching summer fireworks at the site with his family during his childhood.

Roher is a multi-Ironman finisher and a veteran special education teacher. He is currently training for the Ironman Copenhagen, with 120 days remaining until the race. He maintains a social media presence at @David Roher140.6 and can be contacted by email for coaching inquiries.

The specific route involves a 10-mile distance after reaching the top of the dam. Roher emphasizes the physical demands of the climb, noting the lack of handholds and the steepness of the incline. The experience combines the physical challenge of the triathlon discipline with the personal history of the location, which he has revisited weekly.