Kansas City I-670 Closes Dec. 2026 for $164M Deck Park Phase

Kansas City I-670 Closes Dec. 2026 for $164M Deck Park Phase

Kansas City will close Interstate 670 in early December 2026 to start a roughly $164 million first phase of Roy Blunt Luminary Park, Construction Dig reports. The highway stays closed through September 2028.

Market Impact

The first phase covers the block between Wyandotte Street and Baltimore Avenue. It also includes fire protection and emergency systems across a wider stretch of the corridor, plus a building for tunnel safety and operating equipment. Intermittent local street closures are expected to continue until the phase wraps up in spring 2029, Construction Dig says.

The full vision is a four-block park over the interstate, with an estimated total cost of about $315 million. Funding for the remaining blocks has not been secured, and later phases depend on additional public and private support. The source describes the work as significant highway, structural, utility and safety-system construction, and says it will require extensive traffic diversion through downtown Kansas City.

The source does not name a general contractor, the procurement stage or any subcontract package sizes.

What It Means for Subcontractors

• Traffic control: The interstate closure runs from early December 2026 to September 2028, and local street closures are intermittent through spring 2029. That points to a long run of detour setup, signing and local street closure work. The source does not say who holds the traffic management scope.
• Structural concrete and deck work: The first-phase footprint is one block, Wyandotte Street to Baltimore Avenue. Firms that want structural scope should target whoever is assembling that block’s package, since the source names no GC or bid dates.
• Utilities: The source lists utility work as part of the program but gives no detail on which utilities or what timing. Our inference: relocation and protection work would likely have to precede or accompany the December closure. Utility contractors should confirm scope and sequencing with the project team now.
• Tunnel MEP and life safety: Fire protection and emergency systems cover a wider section of the corridor than the park block itself, and the scope includes a dedicated building for tunnel safety and operating equipment. Electrical, mechanical, fire protection and controls firms should treat that as the specialty-trade opportunity, though the source gives no procurement timeline.
• Haul routes and mobilization: With I-670 closed for the better part of two years and traffic diverted through downtown, crews with other downtown work should rebuild delivery windows and truck routes before December 2026. Local street closures will keep changing through spring 2029.
• Pipeline caution: Only the first block is funded. The gap between the $164 million first phase and the $315 million full concept is not secured, so later blocks should not be counted as backlog.