Built on a redeveloped site in the heart of downtown Minneapolis, Target Field’s eight-acre site is the most compact in Major League Baseball. Surrounded on four sides by an interstate, two railroad lines, and a highway bridge, the ballpark was cleverly designed to extend over the roadways, expanding its footprint. Whether fans arrive by foot, bike, bus, car, light rail, or commuter rail, the ballpark is one of the most accessible urban sports facilities. 

The Mortenson team relied on the use of building information modeling (BIM), where complex issues were resolved without impacting critical schedule activities. With an intense focus on sustainability, Target Field was the first outdoor baseball facility to achieve LEED Silver Certification by the US Green Building Council. It was delivered two months ahead of schedule and $2 million under budget.  

Mortenson also installed the stadium’s advanced technology systems. This included a distributed antenna system (DAS), broadcast cabling, satellite master antenna television (SMATV), and surveillance and security systems.  

Since the ballpark opened in 2010, Mortenson has completed various upgrades to improve the fan experience, sustainability, technology, and security. In 2014, technology infrastructure was added to accommodate MLB's All Star Game. Gate 34 got s makeover for the 2019 baseball season, adding additional entrances to relieve fan congestion, a canopy expansion to protect fans, and a green scape with family-friendly activities.  

In 2017, the Minnesota Twins created Bat & Barrel, now called Truly on Deck, to replace the former Metropolitan Club that was only available to season ticket holders. Truly on Deck features six large operable glass walls down the right-field line. It also showcases the 1987 and '91 World Series trophies, prominent awards won by Twins players, and Minnesota-based artwork. Additionally, the main concourse below Truly on Deck was expanded by 1,300 square feet to ease congestion in the ballpark. 

Taking place over several off-seasons from 2020–2023, Mortenson provided a complete AV infrastructure overhaul. Nearly all of the ballpark's video screens were replaced, and the new main video board is 76% larger than its predecessor. Other visual highlights include an upgrade to the Minnie and Paul celebration sign, a new baseball medallion at the top of the Twins Tower in right field, and additional displays to highlight more stats and scores.