Features
CIPP lining strengthens 7,700-foot Fox River interceptor in Wisconsin
A Wisconsin sewer district completed a complex CIPP lining project beneath the Fox River, restoring more than 7,700 feet of interceptor pipe. The work, carried out entirely from barges, overcame unique challenges posed by the riverbed and urban setting.
30th CIGMAT conference focuses on flooding, energy and infrastructure resilience
Industry leaders, engineers and researchers gathered in Houston for the 30th CIGMAT Conference to confront challenges in energy, flooding and urban infrastructure. Key sessions spotlighted innovative solutions — from smart cement to large-scale water treatment projects — shaping the future of resilient cities.
Plan for single Americas energy network gains momentum amid political push
Plans are taking shape to link power grids across the Americas — a project that could span from Alaska to Patagonia and reshape the continent’s energy future. Political leaders are reviving interconnection efforts as renewable power surpluses in Latin America grow.
Letter to the Editor: Missing as-built records fuel underground utility strike risks
A trenchless services expert weighs in on the ongoing debate over underground utility strikes, pointing to a critical issue many in the industry overlook: incomplete as-built documentation. Could addressing this gap be the key to preventing future strikes?
Azuria expands pipeline rehabilitation services with BLD acquisition
Azuria Water Solutions has acquired BLD Services, a major U.S. pipeline rehabilitation company known for CIPP lateral liners and underground utilities work across the Gulf Coast and Eastern regions. The deal strengthens Azuria’s water infrastructure capabilities nationwide.
HDD Association tackles industry issues, needs for small, large drillers
Surprisingly, it’s been more challenging than expected to prove to company owners that there’s value in correctly and safely performing horizontal directional drilling (HDD), observed Don Riggs, long-time owner/operator and HDD advocate. For the last two years, Riggs has served as HDDA’s inaugural president, and one of the top priorities of this new organization has been safety-focused education and training.
Combining hand tunneling, HDD for El Paso sewer job
To accommodate new residential development in El Paso, Texas, crews have been working for more than a year on a project to install a 54-inch sewer force main for El Paso Water. The plan was to complete the installation by hand tunneling – until complications necessitated the addition of horizontal directional drilling (HDD).
Choosing the best boom for vacuum excavators
A clean sewer system creates a healthier community. Sewer cleaners are used to efficiently remove blockages and prevent buildup. Breaking up blockages often demands a combination approach that includes the use of a boom.
Dual conductor barrels keep HDD interceptor project on target
In a complex HDD interceptor crossing, Amici Engineering Contractors used telescoping conductor barrels and pneumatic pipe ramming to navigate poor soils and ensure successful bore alignment. The 7,600-foot reclaimed water main installation along a waterway was completed with precision using multi-stage casing and reaming techniques.
Fiber drives HDD growth as big-rig pipeline work returns
Underground Infrastructure's 27th Annual HDD Survey shows strong fiber-driven growth for small and mid-sized drill rigs, while large rig activity is rebounding as pipeline work picks back up across the U.S. Contractors remain optimistic, despite continued labor pressures and rising competition.
Preparing brick masonry manholes for bonded rehabilitation systems
Brick masonry manholes made from clay or shale brick and laid with portland-cement mortar are still used in North America. Although typically historical, they are often found in manhole rehabilitation projects.
Underground construction activities grow in Central America, Caribbean
The volume of underground construction activities in the Central America and Caribbean region will significantly accelerate due to an acute need of modernization of local energy infrastructure. Also, the need for solutions to frequent regional blackouts and energy shortages is driving work.
Jeremy Wagner leads NASSCO through eventful year
Having originally joined the wastewater industry on the software development side more than 20 years ago, Wagner is now president and CEO of PipeLogix, a pipeline inspection software company based in Palm Desert, Calif.
Inside Infrastructure: Pipeline safety debate continues, construction fully engaged
The issue of pipeline safety, especially with regard to preventing damage to underground facilities during excavation, is a longstanding priority of the excavation construction industry. Although pipeline safety legislation has traditionally been bipartisan, battles over climate change and other peripheral issues have polarized the pipeline safety debate and obstructed efforts to move a bill through the legislative process and enacted into law.
Fiber optics and forests: Mosaic Technologies weaves fiber beneath Wisconsin’s Northwoods
In the forests of Northwest Wisconsin, Mosaic Technologies is laying nearly 400 miles of fiber to connect over 2,500 addresses, overcoming rugged terrain and tight deadlines to bring high-speed internet to remote communities.
Fort Wayne, Ind., tunnel project uses Vortex inserts to protect sewer system
Fort Wayne City Utilities is constructing a five-mile-long tunnel deep beneath the city to reduce combined sewer overflows into local rivers. Part of its Tunnel Works program, the project includes nine drop shafts, five of which feature IPEX’s Vortex Flow Inserts designed to minimize odors, prevent corrosion and improve wastewater quality before treatment.
Bridging the digital divide: Fiber installation brings innovation to the Pennsylvania Turnpike
In Pennsylvania, a groundbreaking fiber optic installation along the Turnpike is tackling two challenges at once: expanding the state’s digital backbone and closing the broadband gap in rural communities. With innovative micro-trenching methods and all-season materials, the project is on track to deliver 325 miles of new connectivity infrastructure by 2026.
How to get more hours out of your heavy equipment
Extend the life of your heavy equipment with smart practices that cut costs and boost productivity. From using high-quality fluids to operator training and preventive maintenance, Volvo Construction Equipment’s Tony D’Angelica outlines four key strategies to help fleets get more hours—and value—out of every machine.
NASSCO Tech Tip: QC sampling for lateral lining installations
The installed properties of mainline CIPP are affected by the installation process. This phenomenon has been referred to as natural parameter variation. To ensure the installed CIPP exhibits the necessary physical properties after curing is completed, field samples are prepared during installation and then sent to a testing laboratory for testing flexural modulus, strength and wall thickness.
Utility and communications construction update
While the final plan for tariffs from the Trump Administration is unknown, the initial rollout shocked investors and caused a flurry of market activity. This will likely continue until a stable plan that is being strategically implemented has been negotiated.
Nebraska communities unite to build regional wastewater system, opening path for growth
Sarpy County and five cities in Nebraska completed the first phase of a major wastewater project, overcoming geographic barriers to expand sewer service and unlock regional development.
UI Awards 2025: Top projects, technologies honored during Underground Infrastructure Conference
UI Awards 2025 recognized leading underground infrastructure achievements, including major sewer, fiber, water and rehabilitation projects, at the annual awards dinner during the Underground Infrastructure Conference.
Griffolyn pre-liners improve reliability in trenchless pipe lining
Griffolyn reinforced pre-liners offer added protection and reliability during CIPP trenchless pipe rehabilitation, helping prevent resin washout, liner buckling, and installation delays in water and sewer infrastructure projects.
Canada aims to speed up infrastructure development, rehab
Canada intends to speed implementation of its ambitious plans for massive development and renovation of its underground infrastructure, in order to raise its efficiency and achieve a net-zero emissions target by 2050.
Drilling through coral in South Florida
Mears Group overcomes South Florida’s coral rock drilling challenges with Vermeer’s Bit Boss system, enhancing HDD efficiency in dense urban environments like Miami and Coral Gables.
Understanding the ‘competent person’ and this critical role
Excavations are integral to underground infrastructure construction, but they pose significant dangers for workers when improperly planned or managed. On average, more than 20 workers die from trench cave-ins each year, according to the Bureau of Labor Statistics.
UIC return to Houston includes 30% attendance increase
The Underground Infrastructure Conference celebrated its 30th anniversary with a return to Houston, home to the original show in 1995. But unlike that first event, which was held in a hotel, UIC 25 was located at the George R. Brown Convention Center and netted more than 30-percent attendance growth from 2024.
Outgoing DCA president Mark Albert ‘fit right in’
AGI Construction founder Mark Albert reflects on his tenure as DCA president, emphasizing new leadership pathways, committee engagement, and the future of the natural gas pipeline industry.
Unique nozzles unlock full potential of recycled water trucks
Specially designed nozzles are helping contractors and municipalities get the most out of recycled water sewer trucks, increasing jetting productivity and reducing downtime caused by clogs.
Williams highlights infrastructure’s role in surging gas demand at UIC 2025
At UIC 2025, Williams Co. VP Glenn Koch outlined how underground infrastructure and natural gas storage are critical to meeting surging U.S. energy demand, driven by data centers and peak-day power needs.
- Fatal trench collapse halts sewer construction in Massachusetts; two workers hospitalized
- Alaska LNG pipeline could require 7,000 workers at peak construction, developers say
- Ohio trench collapse kills one worker, injures two during pipe installation
- Elon Musk's Boring Co. fined for dumping drilling waste into Vegas sewer system
- $1.4 billion Midwest pipeline expansion to move more Canadian oil to U.S. Gulf
- Glenfarne Alaska LNG targets late-2026 construction start for 807-mile pipeline project
- Fatal trench collapse halts sewer construction in Massachusetts; two workers hospitalized
- Massive water line failure leaves majority of Waterbury without service
- Infrastructure failure releases 100,000 gallons of wastewater in Houston; repairs ongoing
- Pennsylvania American Water launches interactive map to identify, replace lead water service lines