Transformative Tunnel
The design of the new State Route 99 tunnel improves safety and mobility along Seattle's waterfront. Its design overcomes settlement and seismic challenges, incorporates a one-pass segmental liner, and...

Double Duty
On June 8, 2018, more than 100 years after its namesake was born in the Little Harbor neighborhood of Portsmouth, New Hampshire, residents and dignitaries from New Hampshire and Maine gathered to celebrate...

An Evolving Alignment
As it pursued its plans to design and construct a critical sewer pipeline, the city of Springfield, Ohio, had to make numerous changes to the project's complex alignment to address the concerns of multiple...

Restored & Revived
A multidisciplinary restoration project returned the iconic Minnesota State Capitol to its original stature while updating architectural and engineering systems for 21st-century functions. Weaving state-of-the-art...

California Ruling Expands Liability of Site-Safety Consultants
This month's column features Peredia v. HR Mobile Services Inc.—a recent appellate decision that offers a thorough analysis of jobsite safety liability for consultants....

Shoddy Record-Keeping Costs Contractor Its Delay Claim
A recent case in the District of Columbia demonstrates that detailed and contemporaneous records are necessary if a contractor wishes to seek recourse for project delays....

Beware the Many Nuances of Contracting with the Federal Government
An opinion released by the federal appellate court in K-Con Inc. v. Secretary of the Army illustrates how the Christian doctrine works and the challenge it...

Are Prescriptive Specifications in Design/Build Contracts Traps for the Unwary?
This month’s case, Appeal of American West Construction LLC, examines how one government board viewed the issue of prescriptive specifications in design/build contracts....

Designed for Durability
The Marc Basnight Bridge, completed in February, carries North Carolina Highway 12 over the Oregon Inlet, an area that is one of the most dynamic and dangerous inlets on the Atlantic Coast. At 2.8 mi long,...

Restoration Through Reclamation
The people of the Netherlands have a long history of reclaiming land from the sea. In one of the lasted examples, the construction of an artificial archipelago represents a remarkable collaboration among...

Designing Secret Cities
Before the U.S. government could develop the first atomic bombs in World War II, it first had to design and construct three “secret cities” at which that work would be completed. Created almost entirely...

Civil War and Labor Strikes: The Baltimore and Ohio Railroad Martinsburg Shops
The B&O roundhouse complex in Martinsburg, West Virginia, contains key examples of America's 19th-century railroad infrastructure—and was ground zero for America's first national strike....

Mixed Foundations Resolve Complex Conditions
A 46-story residential tower currently under construction in downtown Boston abuts an existing parking garage, necessitating extreme care to ensure its stability amid tight space constraints. Part of the...

A Moving Mystery
Along the southeastern edge of California’s Salton Sea, there are areas that contain geothermal mud pots and mud volcanoes—Geological features that may change shape, but never location. In 2016, a large,...

Virtual Reality Helps Secure Public Approval
A design team used virtual reality to generate public approval of a proposed bike and pedestrian path for the west span of the San Francisco-Oakland Bay Bridge in California....

Bridging History
The Pennsylvania Department of Transportation recently rehabilitated the Frankford Avenue Bridge, also known as the Pennypack Creek Bridge. This stone-arch structure, originally built circa 1697, is the...

Doubling Down on History
The developers of a casino in Springfield, Massachusetts, preserved the facades, ornaments, and structural elements of several historical buildings—including a hotel visited by James K. Polk, the 15th...

Skinny 'Scrapers
Incredibly slender towers are rising around the globe into the skylines of major cities, especially New York City. Often targeted at the wealthy who are able to pay astronomical price for spectacular views,...

Pumping Up Flood Defenses
Completed in April 2018, the $731-million Permanent Canal Closures and Pumps project represents the final component of the overall Hurricane and Storm Damage Risk Reduction System that serves the greater...

Solutions for Soft Soils
Because of highly permeable soils and high water tables, deep foundations and basements in southeast Florida have been virtually impossible, limiting the excavation depths in cities like Miami and leading...

 

 

 

 

Return to search