Record rainfall for May has left Chicago's tunnel and reservoir filled to capacity, and operations to send the water into Lake Michigan didn't immediately work due to high water levels and flooding.
The International Federation of Consulting Engineers and the International Tunneling and Underground Space Association (ITA-AITES) launched a new set of contract documents specifically tailored to the challenges of underground works that involve geologic uncertainty, including tunneling and foundations.
New Michigan Gov. Gretchen Whitmer (D) has asked for an opinion from Attorney General Dana Nessel (D) on whether legislation to keep Enbridge's Line 5 pipeline under the Straits of Mackinac and form the new Mackinac Straits Corridor Authority is constitutional.
Maryland officials are scrambling to find another strategy to finance the $425 million expansion of an aging Baltimore freight rail tunnel, following CSX Transportation’s withdrawal from the project earlier this month.
Bertha, the tunnel-boring machine that recently completed a 9,270-ft tunneling journey underneath downtown Seattle has reached the halfway point of another milestone: disassembly.
After examining several alternatives for a new crossing of Hampton Roads in southeastern Virginia, the region’s transportation leaders have opted to focus on expanding the capacity of its existing infrastructure.
An approximately four-mile-long, 18-ft-diameter and 200-ft-deep
tunnel to mitigate storm water and combined sewer overflow into the Connecticut River and Long Island Sound is slated to begin construction this month.