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Exterior view of the Union and Dallas skyline.

The Union Dallas

The Union Dallas | Dallas, Texas

The Union Represents One-of-a-Kind Mixed-Use Development Connecting Dallas’ Victory, Uptown and Downtown Neighborhoods

Innovative architecture, myriad on-site amenities and a dynamic location at the confluence of five city streets in bustling Uptown Dallas all contributed to a one-of-a-kind development known as The Union, delivered by DPR in late 2018.

The new 800,000-sq.-ft., two-tower mixed-use development is surrounded by Dallas’ premier sports, entertainment, museum and outdoor park venues. Designed by HKS, Inc., the LEED Gold and Energy Star-rated complex includes a contemporary 420,000-sq.-ft., 23-story Class-AA office tower with floor to ceiling blue-tinted glass which offer striking views of the Dallas skyline. The office complex features an all-encompassing amenities deck on the 8th floor complete with a state-of-the-art fitness center, tenant lounge and an adjacent conference center that can accommodate up to 75 people.

The Challenges

While there were a number of unique challenges from the project’s inception, the most critical was the physical complexity of the jobsite, which is situated on 3.5 acres with a 20-foot elevation change from Akard Street to Field Street. To accommodate this, HKS designed the project with two first floors from different entrance locations.

The location and size of the site also made the project logistically challenging to build. The presence of residential neighbors on three of the site’s four sides required the team to take extra care to avoid disruptions and noise pollution. They were challenged to find ways to alleviate stress on the city and neighboring residents during site excavation, which was supported by a 65-truck fleet coming and going from the busy site.

In addition, the site was divided in half by a city street that had overhead power lines as well as underground storm and sewer lines; requiring the team to temporarily reroute utilities until the $4.5 million utility scope of work began.

The Union exterior shot
The Union outdoor courtyard
The Solutions

To address the site construction challenges, DPR carefully planned material deliveries and construction activities to avoid disruptions and reduce noise pollution. Scheduling work 7 a.m. to 7 p.m., instituting temporary lane closures, coordinating closely with the city and instituting just-in-time deliveries all helped construction progress smoothly. The entire construction team set up their office off-site at a neighboring space in order to avoid using any of the project site’s limited lay-down space.

The team came up with an innovative solution to mitigate the existing utility relocation challenge that saved time on the schedule. It involved digging two holes on either side of the utilities crossing through the site and temporarily rerouting them around the site. The temporary work included 1,600 linear feet of electrical duct bank approximately 15-20 feet deep in the center of highly trafficked city streets.

To manage the congestion caused by the large truck fleet that supported the site excavation, DPR implemented a live loading technique. This cut the staging need in half and allowed excavation to continue as originally scheduled. The city of Dallas was reportedly happy with the reduced traffic and emission-impact this solution had on the area.

The Union signage with business names.
The Union courtyard area with interactive art and seating
The Union outdoor courtyard