Aileen Cho

2 months ago | enr.com | Aileen Cho

Even with constant uncertainty about tariffs and federal funding lingering in the background, the promise and potential pitfalls of collaborative project delivery methods continue to be a hot topic among civil infrastructure professionals. Among the challenges of progressive design-build (PDB) is whether to use a lump-sum or time-and-materials approach to the contract.

2 months ago | enr.com | Aileen Cho

Construction is proceeding rapidly on an approximately $165-million contract to build a new wastewater treatment plant on San Francisco's Treasure Island, an artificial island originally built by the U.S. Army Corps of Engineers in the 1930s. The 3.5-million-gallon-a-day Treasure Island Water Resource Recovery Facility is part of the San Francisco Public Utility Commission’s (SFPUC) $11.8-billion, 10-year capital program to enhance resiliency and housing options for Bay Area residents.

2 months ago | enr.com | Aileen Cho

Construction has begun on a 10-million-gallon-per day advanced purification facility in El Paso, Texas—the first direct potable reuse project of its kind in the U.S. The purified water will supplement local drinking water supplies during dry seasons and reduce amounts that are withdrawn from the Rio Grande.

Feb 12, 2025 | enr.com | Jeff Yoders |Aileen Cho

Shortly after she took the reins at the Massachusetts Port Authority for capital programs and environmental affairs, Luciana Burdi asked her team to envision how technology could be leveraged to easily access information about the agency’s infrastructure assets—more than 200 buildings and utilities across three airports and multiple marine facilities.

Feb 6, 2025 | enr.com | Aileen Cho

With the successful installation of five 295-ft-long steel girder sets over a single weekend last month, a $660-million, 2.5-mile extension of the Interstate-495 Express Lanes in northern Virginia is now entering the homestretch. Using cranes with a maximum capacity of 500 tons, crews installed the girders, consisting of 10 beams, over northbound I-495 to support a new express lanes ramp as part of the 495 NEXT project during the last weekend of January.