Hyperion AWPF brings new advanced recycled water supply online
Los Angeles, California – Walsh Construction joined the City of Los Angeles, LA Sanitation & Environment (LASAN) and design-build partner Brown and Caldwell to unveil the new Hyperion Advanced Water Purification Facility at the Hyperion Water Reclamation Plant. The new facility is designed to produce up to 1.5 million gallons per day (MGD) of advanced treated recycled water for approved non-potable uses at Hyperion Water Reclamation Plant and at Los Angeles International Airport (LAX), including cooling water and sanitary facilities. Delivered by Walsh Construction and Brown and Caldwell, the project was executed as a progressive design build delivery method. The project supports the long term transformation of the Hyperion Water Reclamation Plant toward 100% water recycling, an integral component of the City’s Pure Water Los Angeles program to reduce dependence on imported water. The Hyperion Advanced Water Purification Facility is designed to treat primary treated wastewater from the Hyperion Water Reclamation Plant and produce advanced treated recycled water for beneficial reuse. During normal operations, the recycled water is intended for non potable applications at LAX and within Hyperion Water Reclamation Plant, offsetting potable water previously used for certain industrial and operational demands.
Archer Western installs final steel tub girder at Wasena Bridge
Roanoke, Virginia - The final steel tub girder is installed for the Wasena Bridge Replacement Project; fully connecting the bridge deck foundation from the neighborhoods of Wasena to Old Southwest in Roanoke. This complex operation highlights the collaboration, precision, and safety focus required to deliver the six‑span bridge, which will replace the existing structure and provide improved access for vehicles, pedestrians, and cyclists while strengthening connections between surrounding neighborhoods and the Roanoke River Greenway.
Archer Western completes temporary tie-in and bypass at South Cross Bayou WWTP
St. Petersburg, Florida - Archer Western completed a key scope of work at Pinellas County Government’s South Cross Bayou Wastewater Treatment Plant to support relocation of the existing 48‑inch Denitrification Filters influent pipe and flow meter from below grade to above grade. This was one of the most challenging operations our Florida Water team has faced. As the team explains in the video above, their planning began more than two years ago with early brainstorming that evolved through constant evaluation. From detailed 3D scanning to scenario modeling, the team worked through every obstacle to ensure alignment, efficiency, and readiness long before construction began. To accomplish their task without the need for by‑pass pumping, the project team implemented an innovative solution by installing a temporary, engineered by‑pass pipe capable of conveying full influent flows to the filters. The temporary tie‑in and by‑pass system were developed and executed collaboratively with Pinellas County and Hazen and Sawyer, ensuring all operational risks associated with managing approximately 30 MGD of plant flows were fully addressed and mitigated.
Walsh Construction installs final girder at I-270 Chain of Rocks Bridge
St. Louis, Missouri - The final girder is in place on the northern bridge for the I‑270 Chain of Rocks Bridge replacement. The northern span is the second of the twin bridges built by Walsh Construction; delivering wider shoulders for improved safety and designed to accommodate future six‑lane capacity when warranted. The following are construction numbers for the new structure:
- Number of girders = 296
- Number of cross frames = 1,669
- Number of laterals = 268
- Number of bolts = 74,745
- Total weight of westbound bridge = 14,783,690 lbs.
The I‑270 Chain of Rocks Bridge Replacement project replaces the aging 1966 bridge that carries Interstate 270 over the Mississippi River between Granite City, Illinois, and north St. Louis County, Missouri. Walsh is responsible for constructing new twin bridges to modernize this critical freight and commuter corridor, beginning with a new structure, complete in December 2024, which was built just south of the existing bridge, and now working on construction of the second span on the original alignment.
Ohio State University's Engineering Research and Education Laboratories building reaches substantial completion
Columbus, Ohio - Construction on The Ohio State University's Engineering Research and Education Laboratories building has reached substantial completion and a certificate of occupancy. Final fit-out work is underway across the building, including furniture installation, punch list and pack-punch activities and a final cleaning. Landscaping is also being finalized.
Being built by Walsh Construction, the project included the demolition of Watts Hall and renovates existing MacQuigg Hall. An addition was also constructed that will house research and teaching labs, collaboration spaces, offices and classroom space.
DFW Terminal F: Modular Construction, Precision, and Partnership
Dallas, Texas - This newly-released film chronicles how Innovation Next+, a design‑build joint venture led by Archer Western, embraced modular construction at an unprecedented scale, fabricating six mega‑modules offsite, then moving them down a taxiway and setting them in place. The largest module measured 278 feet by 136 feet and weighed 3,320 tons, a record‑setting feat that DFW and the JV describe as the largest modules moved for a terminal expansion at any airport. The operation is part of the first phase of Dallas Fort Worth International Airport's (DFW) Terminal F, being delivered by Innovation Next+, a design‑build joint venture led by Archer Western and Turner Construction Company with Phillips May Corporation, H. J. Russell & Company, and CARCON, alongside design partners PGAL, Gensler, and GFT. The program centers on a nearly 400,000‑square‑foot, double‑loaded concourse and a new Skylink station. As DFW’s first all‑new terminal build in two decades, the design will expand capacity while elevating the customer experience. Construction launched in mid‑2024 and the first phase is scheduled to be operational in 2027.
New Onslow Beach Bridge opens to traffic
Jacksonville, North Carolina - The new Onslow Beach Bridge is now open on Camp Lejeune. Built by Archer Western, the new $62 million bridge replaces the 72-year-old swing bridge that connected Marine Corps Base Camp Lejeune to Onslow Beach for decades. The single-leaf bascule bridge was accelerated due to storm damage from Hurricane Florence in 2018 and the age of the original structure, delivering a more resilient and modern crossing now open to traffic. The bridge’s bascule design was selected for its quick operation and ability to provide a clear, unobstructed navigation channel for mariners. Unlike a swing bridge, which rotates around a central point within the waterway, the bascule bridge lifts vertically, improving both safety and efficiency for marine traffic. Designed to serve both military and community needs, the new bridge features two 11-foot travel lanes with three-foot shoulders and supports a wide range of tactical vehicles. It also includes a six-foot-wide sidewalk, providing safe pedestrian access between the mainland and Onslow Beach. During final checks, Archer Western Site Safety Officer Heath Ries was captured operating the bridge’s control panel, guiding the Onslow Beach Bridge into its closed position.
Archer Western tops out flyover connection along I-26/I-29 Interchange Improvements
Dorchester County, South Carolina - At the I‑26/I‑95 Interchange Improvements Project, Archer Western recently topped out Bridge 1; the future flyover connecting I‑95 southbound to I‑26 eastbound. A new set of girders were placed atop the future flyover bridge from I-95 southbound to 1-26 eastbound, all while reaching 250,000 manhours worked without a recordable or lost time incident. Concurrently, crews are constructing bridge decks, pouring concrete and forming parapet walls across all the bridges. With construction operations active across the project, the scale and momentum of the work are evident. Spanning Orangeburg and Dorchester counties, these improvements will advance mobility and strengthen connectivity along the two critical interstate corridors. Our team is looking ahead to upcoming ramp openings and traffic shifts as we continue advancing this work for the South Carolina Department of Transportation.
Archer Western completes Lake Texoma Raw Water Pump Station and Transmission Line Project
Denison, Texas - Archer Western joined the City of Denison and community leaders in a ribbon-cutting ceremony celebrating the completion of the Lake Texoma Raw Water Pump Station, a transformational water infrastructure project that will secure and modernize the city’s long-term water supply. The newly completed pump station marks a major milestone in Denison’s commitment to sustainable growth and water reliability. Built by Archer Western and designed by Plummer Associates, the project enhances the city’s ability to transfer and treat raw water from Lake Texoma to meet increasing regional demand. The new pump station replaces aging infrastructure and expands capacity, positioning the system to serve residents and businesses for decades to come. The Lake Texoma Raw Water Pump Station project included construction of a new intake pump station equipped with vertical turbine pumps located directly in Lake Texoma, along with an extensive network of transmission and support infrastructure.
Construction begins on Pure Water Project Las Virgenes-Triunfo
Agoura Hills, California - Walsh Construction joined the Las Virgenes–Triunfo Joint Powers Authority (JPA), community leaders, and project partners to celebrate the groundbreaking of the Pure Water Project Las Virgenes–Triunfo, marking a major milestone toward a drought resilient, locally controlled drinking water supply for communities. The groundbreaking kicks off construction of the program’s cornerstone facility, a new Advanced Water Purification Facility (AWPF), along with a 14-mile reverse osmosis concentrate pipeline spanning the cities of Thousand Oaks, Westlake Village, and Agoura Hills. The pipeline will connect communities to critical infrastructure and ultimately discharging at an existing regional facility. The Pure Water Project is the largest infrastructure investment in the JPA’s history and reflects more than a decade of planning, collaboration, and technical innovation to strengthen long term water security for the Las Virgenes and Triunfo service area.
Archer Western tops out The J Microunit Apartments
Charlotte, North Carolina - Archer Western has topped out The J, Panorama Holdings' new six-story microunit apartment community. This milestone marks the completion of the building's structural frame, a significant step toward delivering the 84-unit smart micro-apartment multifamily unit in Charlotte's South End in an urban infill site. Being built by Archer Western, the first apartment-building-of-its-kind in Charlotte will deliver thoughtfully designed living spaces each equipped with a full kitchen and bathroom. The apartments will feature adaptable ORI furniture systems that seamlessly convert living areas into bedrooms at the touch of a button, maximizing comfort and functionality in compact spaces, ranging between 325 to 350 square feet.
Walsh Construction advancing at UK Healthcare Cancer Center and Ambulatory Building
Lexington, Kentucky - Walsh Construction keeps advancing work on the UK HealthCare Cancer Center and Ambulatory Building. Crews are making steady strides on the 550,000‑square‑foot complex, along with a new parking garage designed to improve access and convenience for patients, visitors, and staff. The building structure, systems, and supporting infrastructure are coming together to serve the future home of the UK Markey Cancer Center, Kentucky’s only National Cancer Institute‑designated Comprehensive Cancer Center. Anticipated for completion in 2028, the facility is designed to significantly expand access to advanced, patient‑centered care while supporting groundbreaking research and education. In addition to housing the Markey Cancer Center, the project will include a Comprehensive Spine Center, ambulatory surgery suites, and a wide range of outpatient services, all integrated to enhance collaboration, efficiency, and the overall patient experience.
Archer Western completes meter vault installations for Cunningham WTP Phase 2
Marshall, Virginia - Archer Western crews install three separate meter vaults for the Cunningham Water Treatment Plant Phase 2 project. These installations are an essential step in the broader project to expand and modernize the local water supply system. The vaults will house critical metering and control components that support safe, reliable operation of new groundwater wells. The Phase 2 project includes Archer Western developing three remote well sites, installing miles of new ductile iron water main, and upgrading the Cunningham Water Treatment Plant with new filtration and transfer pumps.
Long-awaited Brent Spence Companion Bridge Moves Closer to Construction
Cincinnati, Ohio - We’re excited to share a major step forward for the Brent Spence Bridge Corridor; the Ohio Controlling Board has authorized Ohio Department of Transportation and the Kentucky Transportation Cabinet to finalize plans and begin construction this spring. The work will modernize I‑71/I‑75 in Kentucky and I‑75 in Ohio, easing one of the nation’s most severe traffic bottlenecks and strengthening mobility across Northern Kentucky and Southwest Ohio. With more than $1B in freight moving through this corridor every day, the improvements will boost safety, reliability, and economic growth for the region and the nation. The joint venture of Walsh Construction and Kokosing is proud to lead the progressive design-build of the Brent Spence Bridge Corridor Project.