Three of the most technically complex and publicly visible construction projects in the United States are simultaneously in active build phases in 2026, representing more than $5 billion in combined investment and collectively employing thousands of craft workers. The new Nissan Stadium in Nashville, Continental Coliseum in Oklahoma City, and the Las Vegas Athletics ballpark are each landmark projects — and each offers distinct lessons for construction professionals, owners, and subcontractors watching the national market.

Nashville's New Nissan Stadium: 75% Complete and On Schedule

The Tennessee Titans' new enclosed home, the new Nissan Stadium, is tracking toward a February 2027 key handover — on its original three-year timeline. As of a March 2026 construction tour reported by the Associated Press, the project was approximately two-thirds complete, with the Titans' president and CEO Burke Nihill confirming the team expects "keys to this building in February."

The project broke ground February 29, 2024, on the east bank of the Cumberland River in Nashville. The official project site reported the stadium was 75% complete as of March 2026, with the translucent ETFE roof cable installation scheduled to begin in May 2026 and all panels targeted for completion by October 2026.

Key project facts:

• Total cost: $2.1 billion, including $1.2 billion combined in state and local bonds
• The Tennessee Titans' ownership group is contributing $840 million
• Design architect: Manica Architecture; approximately 1.8 million square feet
• Capacity: approximately 60,000 seats, with all seating between 38% closer to the field than the current stadium
• Features: 44 escalators and 27 elevators (up from six elevators in the current stadium), an enclosed translucent ETFE roof — only the second fully enclosed NFL stadium in the country after Allegiant Stadium
• On-site workforce at peak: approximately 4,000 construction workers

As of the April 2026 update, the stadium was 75% complete. Interior finishes, mechanical systems, and the ETFE roof cable-tensioning represent the remaining major scope. The steel superstructure was completed at a topping-out ceremony in November 2025, attended by NFL Commissioner Roger Goodell.

Oklahoma City Continental Coliseum: $900 Million NBA Arena Breaks Ground

On March 26, 2026, the Oklahoma City Thunder and project stakeholders broke ground on Continental Coliseum, a $900 million replacement arena for the reigning NBA champions. The project will rise on the former site of the Myriad Convention Center, which was fully demolished by February 12, 2026.

A joint venture of Tulsa, Oklahoma-based Flintco and Minneapolis-based Mortenson serves as the construction team. Mortenson's sports venue portfolio includes the $1.4 billion Chase Center in San Francisco and the $1.97 billion Allegiant Stadium in Las Vegas. Manica Architecture is the design architect; TVS is architect of record. Per the Thunder's official arena page, the arena targets a late summer 2028 opening, with a contractual obligation to open no later than June 2029.

Funding comes almost entirely from Oklahoma City residents: $900 million in sales tax extensions through the MAPS 4 capital program, plus $50 million from the Thunder's ownership group. The 750,000-square-foot arena will feature a 360-degree glass curtain wall with panoramic views from interior concourses.

Las Vegas Athletics Ballpark: Ahead of Schedule on the Strip

On the site of the former Tropicana Las Vegas, the Las Vegas Athletics ballpark has been proceeding ahead of its construction schedule. According to the Las Vegas Review-Journal, foundation work was complete by February 2026 and the project was reported ahead of schedule as of April 2026. Structural steel in the bowl began in March 2026.

Key facts:

• Total project cost: $2 billion (up from an initial $1.75 billion estimate); $380 million from public funds
• Construction manager: Mortenson (963,000 square feet, 33,000 seats, 122 suites/boxes)
• Target opening: 2028 MLB season
• The stadium will feature the world's largest cable-net glass wall facing the Las Vegas Strip and MLB's first under-seat cooling system
• The A's have applied for over $1 billion in Clark County building permits tied to the project

As of May 2026, construction activity was visible with roof truss installation expected to begin in June 2026 and take approximately one year to complete. Mortenson's project page confirms an estimated completion date of February 2028.

Why This Matters to Construction Professionals

These three projects illustrate several dynamics relevant to large venue builders and subcontractors nationwide:

• Specialty trades concentration: Enclosed roof systems — ETFE panels, large-span steel, cable tensioning — are technically demanding and require specialized contractors. Both Nissan Stadium and Continental Coliseum feature fully enclosed roofs, placing premium value on firms with that capability.
• Schedule risk management: All three projects have contractual milestone obligations (February 2027, June 2029, 2028 MLB season) that drive disciplined phased construction and intensive prefabrication.
• Cost escalation: The Las Vegas ballpark rose from $1.5 billion to $2 billion — a 33% increase largely attributable to materials escalation and design development. The Titans' stadium similarly escalated from early estimates.
• Local preference and workforce impact: The Nashville stadium project has prioritized local businesses and labor, with the Tennessee Builders Alliance leading contractor outreach and workforce development.

The Broader National Pipeline

Beyond these three projects in active construction, the national sports venue pipeline is generating significant uncertainty. The Chicago Bears' proposed $5 billion domed stadium in Arlington Heights — which would create more than 56,000 construction job years — remains in negotiations between the team, the State of Illinois, and competing bids from northwest Indiana. As of May 2026, the Bears and state leaders were still working toward a decision, with infrastructure funding arrangements and property tax certainty the key unresolved issues.

Separately, the San Antonio Spurs are advancing planning for a new $1.2–$1.5 billion NBA arena as part of a $4 billion downtown sports and entertainment district, though groundbreaking is not expected until later in the decade.

What to Watch Next

• Nashville's new Nissan Stadium: ETFE roof cable installation begins May 2026; all panels targeted for October 2026 — the final major exterior milestone before interior finish acceleration
• Oklahoma City Continental Coliseum: foundation and structure work underway throughout 2026 toward a 2028 opening
• Las Vegas Athletics ballpark: roof truss installation begins June 2026 and will take roughly a year — the most visible remaining structural milestone
• Chicago Bears stadium: a state legislative decision on infrastructure funding is expected; delay beyond 2026 increases cost risk substantially

Bottom Line

The United States is in the middle of one of its most active sports venue construction cycles in decades. Three projects — totaling over $5 billion — are in parallel active construction in 2026, each pushing the limits of structural engineering, schedule management, and materials procurement. For specialty contractors in roofing, glazing, steel, MEP, and interiors, these projects represent concentrated demand for exactly the workforce capabilities currently in shortest supply. Owners and developers in adjacent sectors — from convention centers to arenas — should watch how these projects navigate cost control and schedule compression over the next 18 months.

Sources

• SF Chronicle / AP — Titans new stadium on track, March 2026
• New Nissan Stadium official project site
• Construction Dive — Continental Coliseum groundbreaking
• OKC Thunder Continental Coliseum page
• Las Vegas Review-Journal — A's ballpark construction update
• Mortenson project page — Las Vegas Athletics Ballpark
• Chicago Bears stadium development page