At the Promenade at Castle Rock, Boulderscape sculpted 43,150 square feet of structural and architectural shotcrete into a Colorado Columnar Basalt finish — towering shoring walls for the shopping center above, delivered in 22 days at 36% below traditional construction.
Record Installation Time
Savings Over Alternatives
Wall Square Footage
To support a new shopping center development built above a steep hillside in Castle Rock, a series of soil nail shoring walls ranging from 60 to 120 feet in height were required. The owner sought a solution that would provide long term stability while delivering an architectural appearance that complemented the surrounding landscape. Boulderscape developed and installed its Colorado Columnar Basalt finish across 43,150 square feet of wall surface. Hand sculpted to replicate the distinctive hexagonal basalt columns found throughout the region, the finish transformed the retaining walls into a natural extension of the surrounding terrain.
The project consisted of a 9" thick structural shotcrete section with an average 3" thick architectural relief over a soil nail wall system using a 5,000 PSI mix design. To enhance durability during Colorado's freeze thaw cycles, the shotcrete mix incorporated 6 to 8 percent air entrainment. The entire architectural facing was completed in just 22 days, providing a durable and visually striking retaining wall system for the development. See our sculpted shotcrete process or explore more shotcrete finishes.
Installation of a 5” thick structural shotcrete and a 1”- 5” thick Columnar Basalt Finish. Stained with a Medium Desert Blend finish.
Colorado Columnar Basalt
Medium Desert Blend finish
Soil Nail Wall
5,000 PSI
6%-8% air was needed to help reduce chances of cracking in winter.
