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Nicholson Awarded Contract as Part of Louisville CSO Progr...

Pittsburgh-based geotechnical specialty contractor Nicholson Construction was recently awarded the contract for construction of a 42-in. thick, concrete diaphragm wall as part of the Louisville and Jefferson County Metropolitan Sewer District’s (MSD) Portland Combined Sewer Overflow (CSO) Basin project in Kentucky.

Acciona Overcomes Challenges for Cantabrian Tunnel

ACCIONA Construction has had to overcome important technical and logistical difficulties in excavating the Santoña-Laredo undersea tunnel that forms part of the project to improve the sanitation infrastructure of the Santoña marshlands in Cantabria, Spain.

AASHTO Publishes LRFD Tunnel Design and Construction Guide

New guide specifications on Load and Resistance Factor Design for road tunnels have been published by the American Association of State Highway Transportation Officials (AASHTO).

ASCE Publishes Updated Standard for Concrete Pipe Jacking

Standard Practice for Direct Design of Precast Concrete Pipe for Jacking in Trenchless Construction, Standards ASCE/CI 27-17, addresses the direct design of precast concrete pipe that will be installed using jacking, a type of trenchless construction.

SuperPile ’17 Convenes in California

More than 350 deep foundation professionals attended SuperPile ’17 on June 14-16, 2017, at Loews Coronado Bay Resort, Coronado, Calif.
recent from Editor's Message A Big Break Through
A Big Break Through The SR 99 tunnel will replace the existing elevated highway that was in need of replacement in the wake of the Nisqually earthquake in 2001. By burying the highway and opening up the city core to the waterfront – the city’s most valuable asset – city planners have gone a long way toward improving the quality of life for the next 100 years or more.
recent from People Brady, Second Generation Mole, to Lead Aldea’s Atlanta Office
Brady, Second Generation Mole, to Lead Aldea’s Atlanta Office Aldea Services LLC announced the appointment of Jim Brady to run the Atlanta office. Brady brings more than 30 years of experience to his position.
recent from Technical Papers Case Study on Retrofitting
Case Study on Retrofitting Retrofitting Seattle's Mount Baker Ridge and Mercer Island Tunnels using a Saccardo Nozzle.
recent from Product Showcase Normet Unveils New Equipment at WTC in Norway
Normet Unveils New Equipment at WTC in Norway Normet launched a new generation equipment offering at the International Tunnelling Association's World Tunnel Congress (WTC) 2017 exhibition this week in Bergen, Norway.