Crystal Bridges Expansion

Project Overview

As part of the expansion of Crystal Bridges Museum of American Art, ESS performed critical earthwork, excavation, blasting, utility, and site stabilization operations supporting construction of the museum’s 114,000 SF addition while protecting the integrity of the existing facility and surrounding natural environment. The expansion increases the museum’s footprint by approximately 50 percent and supports its continued growth as a cultural destination for Northwest Arkansas.

ESS’ scope included more than 139,000 CY of excavation, including over 60,500 CY of rock mass blasting, along with installation of approximately 7,400 LF of underground utilities.

Much of this work occurred adjacent to the occupied museum facility, where maintaining normal operations while executing major excavation activities required exceptional planning and precision. The most significant challenge involved extensive rock excavation and controlled blasting immediately beside the existing museum structure, where valuable artwork and occupied spaces remained in use throughout construction. ESS implemented comprehensive vibration monitoring systems to continuously track movement and ensure no impact to the structure or interior.

ESS also completed major creek reshaping and earthwork operations throughout the site. The team excavated and widened both sides of the creek corridor while maintaining stormwater flow during construction through temporary water diversion measures, including pumping operations, temporary dams, and a new valve structure to facilitate concrete placement.

Additional work included utility relocations, construction of a new concrete storm box and storm pipe extensions, significant grading and backfill operations, and installation of soil nail retaining wall systems to stabilize excavations and support safe construction activities.

ESS’ earthwork and infrastructure improvements established the foundation for the expansion while preserving the site’s natural waterways, terrain, and landscape character that make Crystal Bridges unique.