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M/E Engineering joins Salas O’Brien

We are excited to announce that M/E Engineering has joined Salas O’Brien, effective October 2025. Our offices will remain under the same leadership, and our clients can continue to expect the same team and level of service. As M/E and Salas O’Brien work together, we believe clients will benefit from our combined expertise and geographic reach.

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Downstream Casino Resort Luxury Hotel & Casino
© John Amatucci

Luxury Hotel & Casino

Downstream Casino Resort

The Downstream Casino Resort spans 40 acres at the three-corner border of Oklahoma, Kansas, and Missouri. The 70,000 sq. ft. gaming floor features over 2,000 slot machines, 45 table games, 15 poker tables, a high-limit area, and a race book, complemented by multiple restaurants, retail shops, and 8,000 SF of meeting space.


M/E Engineering completed the design and construction administration for the HVAC, power, specialty lighting, IT, fire protection and plumbing systems for these additions for the luxury hotel and casino. A 12-story, 222-room luxury hotel with a spa and conference center was also added, making Downstream a leading destination for gaming, entertainment, and events in the region.

Client: Downstream Casino Resort
Size: 525,000 SF
Awards: N/A
Services:
  • MEP/FP Engineering
Downstream Casino Resort Luxury Hotel & Casino bar
© John Amatucci
Downstream Casino Resort Luxury Hotel & Casino dining room
© John Amatucci
Downstream Casino Resort Luxury Hotel & Casino lobby
© John Amatucci
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