Mountain States & Southwest Construction News provides updates on the people, companies, and projects of the architecture, engineering and construction (AEC) industry of the mountain state and southwestern regions of the United States. https://www.enr.com/rss/1062 en-us To be considered for inclusion in the 2026 list of Mountain States & Southwest construction firms, fill out a survey by July 17. To be considered for inclusion in the 2026 list of Mountain States & Southwest construction firms, fill out a survey by July 17.

]]> http://www.enr.com/blogs/9/post/63303 Fri, 10 Jul 2026 15:18:42 -0400 https://www.enr.com/blogs/9-talk-of-the-rockies-southwest/post/63303-enr-mountain-states-and-southwest-top-contractors-surveys-and-preview-list Centrus Energy finalizes contract for $1B HALEU plant build in Ohio with Fluor as EPC, while Urenco USA eyes 2027 start of big expansion in New Mexico . Centrus Energy finalizes contract for $1B HALEU plant build in Ohio with Fluor as EPC, while Urenco USA eyes 2027 start of big expansion in New Mexico .

]]> http://www.enr.com/articles/63286 Tue, 07 Jul 2026 12:11:16 -0400 https://www.enr.com/articles/63286-firms-scale-facilities-to-produce-more-us-european-enriched-uranium-privately A story on ESI will appear in the August 24 print issue of ENR Mountain States and Southwest, which also will feature our annual ranking of the top construction firms across the eight-state region of Arizona, Colorado, Idaho, Montana, Nevada, New Mexico, Utah and Wyoming. A story on ESI will appear in the August 24 print issue of ENR Mountain States and Southwest, which also will feature our annual ranking of the top construction firms across the eight-state region of Arizona, Colorado, Idaho, Montana, Nevada, New Mexico, Utah and Wyoming. 

]]> http://www.enr.com/blogs/9/post/63265 Tue, 07 Jul 2026 11:37:41 -0400 https://www.enr.com/blogs/9-talk-of-the-rockies-southwest/post/63265-enr-names-engineered-structures-inc-intermountain-contractor-of-the-year ENR Mountain States & Southwest will profile Adolfson & Peterson in the August 24 print issue, which will also feature our annual ranking of the region's top contractors. ENR Mountain States & Southwest will profile Adolfson & Peterson in the August 24 print issue, which will also feature our annual ranking of the region's top contractors.

]]> http://www.enr.com/blogs/9/post/63264 Mon, 06 Jul 2026 13:20:55 -0400 https://www.enr.com/blogs/9-talk-of-the-rockies-southwest/post/63264-adolfson-and-peterson-named-2026-contractor-of-the-year-for-colorado-and-wyoming Urenco USA plans a privately funded multibillion-dollar expansion of the only US commercial uranium enrichment facility, increasing low enriched uranium production by 50%, in broader effort to strengthen nuclear fuel supply for next gen advanced power plants. http://www.enr.com/articles/63271 Thu, 02 Jul 2026 16:33:13 -0400 https://www.enr.com/articles/63271-us-uranium-enrichment-is-set-to-expand Arizona is closing the final four-lane gap on I-10 between Phoenix and Tucson with a $1-billion corridor upgrade designed to improve safety, reduce congestion and increase long-term resilience. Multiple projects are now underway, with the full Wild Horse Pass Corridor program scheduled for completion in 2029. Arizona is closing the final four-lane gap on I-10 between Phoenix and Tucson with a $1-billion corridor upgrade designed to improve safety, reduce congestion and increase long-term resilience. Multiple projects are now underway, with the full Wild Horse Pass Corridor program scheduled for completion in 2029.

]]> http://www.enr.com/articles/63269 Thu, 02 Jul 2026 00:00:00 -0400 https://www.enr.com/articles/63269-taming-arizonas-wild-horse-pass-corridor gottliebb@enr.com (Bryan Gottlieb) Arizona's new $11.3-billion transportation program does more than map future projects—it offers an early glimpse of how states are planning beyond IIJA. Arizona's new $11.3-billion transportation program does more than map future projects—it offers an early glimpse of how states are planning beyond IIJA.

]]> http://www.enr.com/articles/63221 Thu, 25 Jun 2026 14:10:29 -0400 https://www.enr.com/articles/63221-arizona-adopts-113b-transportation-program-as-states-await-next-federal-highway-bill Design and construction teammates reunite at renowned Colorado neuro-rehabilitation hospital for $250-million expansion. Design and construction teammates reunite at renowned Colorado neuro-rehabilitation hospital for $250-million expansion.

]]> http://www.enr.com/articles/63137 Mon, 15 Jun 2026 12:00:00 -0400 https://www.enr.com/articles/63137-renowned-colorado-neurorehabilitation-hospital-launches-250m-expansion Modern engineering feat ensures the Salt Lake City Temple respects its rich history while creating a stable future. Modern engineering feat ensures the Salt Lake City Temple respects its rich history while creating a stable future.

]]> http://www.enr.com/articles/63133 Mon, 15 Jun 2026 12:00:00 -0400 https://www.enr.com/articles/63133-engineering-feat-provides-seismic-stabilization-for-historic-salt-lake-temple Innovation is the key to success for ENR Southwest’s Design Firm of the Year. Innovation is the key to success for ENR Southwest’s Design Firm of the Year.

]]> http://www.enr.com/articles/63131 Mon, 15 Jun 2026 12:00:00 -0400 https://www.enr.com/articles/63131-water-a-big-market-for-jacobs-in-dry-southwest The ENR Mountain States Design Firm of the Year zeroes in on the growing aviation and transportation sectors. The ENR Mountain States Design Firm of the Year zeroes in on the growing aviation and transportation sectors.

]]> http://www.enr.com/articles/63130 Mon, 15 Jun 2026 12:00:00 -0400 https://www.enr.com/articles/63130-focus-on-safety-mobility-drives-growth-for-rs-and-h “Whether you’re looking to move, work or invest, the Boise area has a lot going for it,” says Hobbs. “Conditions are strong ... and we’re anticipating the market to continue strengthening as we head into 2027.” “Whether you’re looking to move, work or invest, the Boise area has a lot going for it,” says Hobbs. “Conditions are strong ... and we’re anticipating the market to continue strengthening as we head into 2027.”

]]> http://www.enr.com/articles/63146 Mon, 15 Jun 2026 11:59:00 -0400 https://www.enr.com/articles/63146-boise-starts-expected-to-fall-6-after-climbing-10-in-2025 The industry’s ability to deliver complex projects under pressure is a point of professional pride shared across every trade and every crew. The industry’s ability to deliver complex projects under pressure is a point of professional pride shared across every trade and every crew.

]]> http://www.enr.com/articles/63143 Mon, 15 Jun 2026 11:59:00 -0400 https://www.enr.com/articles/63143-the-conversation-that-can-save-a-life-on-your-jobsite Updates about construction professionals from across the Mountain States & Southwest region. Updates about construction professionals from across the Mountain States & Southwest region.

]]> http://www.enr.com/articles/63142 Mon, 15 Jun 2026 11:59:00 -0400 https://www.enr.com/articles/63142-mountain-states-and-southwest-people-news-for-june-july-2026 Updates on projects and companies in the Mountain States and Southwest region. Updates on projects and companies in the Mountain States and Southwest region.

]]> http://www.enr.com/articles/63141 Mon, 15 Jun 2026 11:59:00 -0400 https://www.enr.com/articles/63141-colorado-laser-research-facility-200m-nevada-water-reuse-project-and-more Tuffo expects the Las Vegas market to remain active, particularly in gaming, hospitality and experiential projects. Tuffo expects the Las Vegas market to remain active, particularly in gaming, hospitality and experiential projects. 

]]> http://www.enr.com/articles/63147 Mon, 15 Jun 2026 11:55:00 -0400 https://www.enr.com/articles/63147-las-vegas-starts-expected-to-tumble-16-after-climbing-10-in-2025 gottliebb@enr.com (Bryan Gottlieb) As a heat wave pushes heat index values toward 100°F, contractors say the biggest risk may not be the temperature itself. As a heat wave pushes heat index values toward 100°F, contractors say the biggest risk may not be the temperature itself.

]]> http://www.enr.com/articles/63156 Fri, 12 Jun 2026 09:36:22 -0400 https://www.enr.com/articles/63156-early-season-heat-puts-focus-on-worker-acclimatization-across-construction-sites gottliebb@enr.com (Bryan Gottlieb) Can Southwest water agencies create a new market for desalinated and recycled water without building pipelines or altering Colorado River water rights? Can Southwest water agencies create a new market for desalinated and recycled water without building pipelines or altering Colorado River water rights?

]]> http://www.enr.com/articles/63117 Fri, 05 Jun 2026 16:39:00 -0400 https://www.enr.com/articles/63117-colorado-river-agencies-test-framework-for-interstate-water-exchanges gottliebb@enr.com (Bryan Gottlieb) Denver is testing whether sewer heat, geothermal wells and district thermal infrastructure can retrofit dense downtowns without requiring major electrical-system expansion. Denver is testing whether sewer heat, geothermal wells and district thermal infrastructure can retrofit dense downtowns without requiring major electrical-system expansion.

]]> http://www.enr.com/articles/63057 Wed, 27 May 2026 13:23:58 -0400 https://www.enr.com/articles/63057-denver-looks-to-sewers-geothermal-wells-for-downtown-energy-network yodersj@enr.com (Jeff Yoders) Design-build firm is part of a consortium that aims to build a nuclear-powered data center at the Idaho National Laboratory, a federal research site. Design-build firm is part of a consortium that aims to build a nuclear-powered data center at the Idaho National Laboratory, a federal research site.

]]> http://www.enr.com/articles/63037 Thu, 21 May 2026 08:51:35 -0400 https://www.enr.com/articles/63037-clayco-partners-with-deep-atomic-for-doe-nuclear-powered-data-center-proposal Crews in southern Utah County are nearing completion on one of the most consequential water infrastructure projects in the Western U.S. Crews in southern Utah County are nearing completion on one of the most consequential water infrastructure projects in the Western U.S.

]]> http://www.enr.com/articles/62983 Mon, 11 May 2026 13:56:27 -0400 https://www.enr.com/articles/62983-utah-nears-completion-of-17-year-49-mile-spanish-forksantaquin-pipeline gottliebb@enr.com (Bryan Gottlieb) Crews cut through a 1,000-year-old Indigenous ground etching in Arizona after a no-time contract change, raising questions about execution controls. Crews cut through a 1,000-year-old Indigenous ground etching in Arizona after a no-time contract change, raising questions about execution controls.

]]> http://www.enr.com/articles/62932 Mon, 04 May 2026 14:14:03 -0400 https://www.enr.com/articles/62932-border-wall-construction-draws-execution-questions-after-cultural-site-damage gottliebb@enr.com (Bryan Gottlieb) The Trump permit enables construction of a 645-mile Canada-to-Wyoming crude pipeline connecting to one in Alberta, but challenges from environmental groups as well as further state and federal reviews are still ahead. The Trump permit enables construction of a 645-mile Canada-to-Wyoming crude pipeline connecting to one in Alberta, but challenges from environmental groups as well as further state and federal reviews are still ahead.

]]> http://www.enr.com/articles/62924 Fri, 01 May 2026 14:21:38 -0400 https://www.enr.com/articles/62924-canada-to-wyoming-oil-pipeline-secures-presidential-permit-to-advance A profile of RS&H will appear in ENR Mountain States & Southwest's June 22 issue, along with our annual Top Design Firms ranking. A profile of RS&H will appear in ENR Mountain States & Southwest's June 22 issue, along with our annual Top Design Firms ranking.

]]> http://www.enr.com/blogs/9/post/62912 Thu, 30 Apr 2026 10:29:40 -0400 https://www.enr.com/blogs/9-talk-of-the-rockies-southwest/post/62912-rs-and-h-named-enr-mountain-states-design-firm-of-the-year A profile of Jacobs will appear in ENR Mountain States and Southwest's June 22 issue, along with our annual Top Design Firms ranking. A profile of Jacobs will appear in ENR Mountain States and Southwest's June 22 issue, along with our annual Top Design Firms ranking.

]]> http://www.enr.com/blogs/9/post/62910 Wed, 29 Apr 2026 16:21:59 -0400 https://www.enr.com/blogs/9-talk-of-the-rockies-southwest/post/62910-jacobs-named-enr-southwest-design-firm-of-the-year http://www.enr.com/blogs/9/post/62902 Tue, 28 Apr 2026 16:20:01 -0400 https://www.enr.com/blogs/9-talk-of-the-rockies-southwest/post/62902-last-call-for-submissions-enr-mountain-states-and-southwests-top-design-firms-surveys-and-preview-list gottliebb@enr.com (Bryan Gottlieb) TerraPower begins construction of the first U.S. utility-scale advanced nuclear plant—can its Natrium design finally move next-generation reactors into commercial reality? TerraPower begins construction of the first U.S. utility-scale advanced nuclear plant—can its Natrium design finally move next-generation reactors into commercial reality?

]]> http://www.enr.com/articles/62891 Fri, 24 Apr 2026 15:00:57 -0400 https://www.enr.com/articles/62891-terrapower-begins-construction-on-first-us-commercial-scale-advanced-nuclear-reactor gottliebb@enr.com (Bryan Gottlieb) Colorado River states approve emergency Flaming Gorge releases as Lake Powell nears hydropower thresholds, signaling deeper infrastructure constraints and looming capital investment decisions across the basin. Colorado River states approve emergency Flaming Gorge releases as Lake Powell nears hydropower thresholds, signaling deeper infrastructure constraints and looming capital investment decisions across the basin.

]]> http://www.enr.com/articles/62889 Fri, 24 Apr 2026 11:05:26 -0400 https://www.enr.com/articles/62889-colorado-river-states-clear-emergency-water-transfer-as-system-nears-hydropower-floor Fueled by the state’s oil and gas boom and IIJA funds, NMDOT is aiming to build bigger and better to improve safety on its highways and rail crossings. Fueled by the state’s oil and gas boom and IIJA funds, NMDOT is aiming to build bigger and better to improve safety on its highways and rail crossings.

]]> http://www.enr.com/articles/62837 Mon, 20 Apr 2026 12:00:00 -0400 https://www.enr.com/articles/62837-new-mexico-dot-improves-safety-on-highways-and-rail-crossings With deep roots in the Treasure Valley, the health care system is catching up with the area’s recent growth and positioning itself for the future. With deep roots in the Treasure Valley, the health care system is catching up with the area’s recent growth and positioning itself for the future.

]]> http://www.enr.com/articles/62833 Mon, 20 Apr 2026 12:00:00 -0400 https://www.enr.com/articles/62833-st-lukes-boise-health-system-invests-in-downtown-campus