Civil

Ullrhof Restaurant

Civil Site Engineering for a Remote Mid-Mountain Restaurant Replacement at Snowmass

The Ullrhof has been one of Snowmass Resort’s most popular on-mountain destinations for decades. Sitting mid-mountain at roughly 10,000 feet, this restaurant is busy every season, ans beloved by regulars, but was in need of an upgrade. Aspen Skiing Company made the call to demolish the aging structure and build a new facility in its place. What makes this project technically interesting isn’t the building itself. It’s everything the site doesn’t have: no road access, no municipal water distribution system, and no way to get a fire truck anywhere near it. Engineering a functional, code-compliant restaurant at 10,000 feet on an active ski mountain required solving problems that most civil engineering projects never encounter.

Challenges & highlights

There are no roads to Ullrhof. Construction materials, equipment, and labor move up the mountain by snowcat or snowmobile in winter, and by whatever limited access exists during the brief shoulder seasons. We designed site access specifically for snowcat use, accounting for the realities of how construction actually happens at this elevation and in this environment.

In addition, though Snowmass Resort has a water treatment plant, there’s no pressurized distribution system running up the mountain. Water is pumped to underground storage tanks, and those tanks have to be positioned high enough on the mountain to generate sufficient pressure to meet fire sprinkler minimums.

RFE designed the water supply system for the new building, including tank placement and sizing to ensure that sprinkler systems would have the pressure they need under worst-case conditions. 

Beyond that, site design had to function in both summer and winter conditions. To ensure easy access in snowy and summer conditions, decks and patios are elevated 18 to 24 inches above grade so that snow cats and groomers can set the snow surface level during the season, allowing skiers and snowboarders to ski directly up to the building, step off, and walk in.

That same logic shaped the grading design around the building. Skiers can coast on gentle grades; snowboarders can’t push once they’ve stopped. RFE held grades tight in the approach zones, targeting 2 to 5 percent, to make sure the site works for all users arriving on snow. 

All of the standard high-altitude considerations apply here as well, such as deep utility burial for freeze protection, snow storage planning, and designing systems to perform reliably through the full range of mountain conditions.

The results

The Ullrhof project is currently under construction. When complete, it will replace a decades-old structure with a new facility designed from the ground up for the demands of mid-mountain resort operations. We specialize in infrastructure built to handle heavy snow, serve high visitor volumes, and function safely in an environment that doesn’t allow for easy maintenance or emergency response.

Elevation: 8,209

Location: Snowmass Village, CO

  • Civil lift relocation plan coordinated with POMA
  • Domestic drinking water system analysis and upgrade
  • Permitting through CDPHE
  • Entitlement documentation preparation
  • Civil design for the on-mountain Ullrhof Restaurant
  • Collaboration with Design Workshop and BSA Architects

Build infrastructure that holds up

If your municipality is planning roadway improvements, utility expansions, or system upgrades, we are ready to support your team.