Ayear after shifting bridge bents halted work on the $217-million U.S. Route 20 project near Oregon’s coast, engineers are hoping for rain and a solution. Photo: Courtesy of ODOT Unstable soils have kept completion of an Oregon road section in limbo. While over 50% of the new 6.5-mile bypass is complete, four bridges up to 1,100 ft long sit partially constructed. Lateral load from adjacent fill and subsurface ground pressure may have caused two of the 20 bents on the 10-bridge project to shift as much as two inches. Since that discovery in February 2010, crews have been collecting data.
The former Soviet nation of Kazakhstan is ramping up completion of EXPO 2017—a futuristic megaproject estimated to cost between $3 and $5 billion that will showcase global energy efficiency and boost the host’s global profile
Cover photo by Neelam Mathews in Astana, Kazakhstan