Understanding AASHTO LRFD Bridge Design Specs for cast-in …
WEBSep 19, 2018 · By: Chris Gamache, P.E. The AASHTO LRFD Bridge Design Specifications, 8th Edition, was published in November 2017.One change that occurred since the 7th Edition is the reorganization of Section 5, which is the design of bridge and ancillary structures constructed from reinforced concrete.
Holding down the fort | Roads and Bridges
WEBDec 6, 2007 · The Fort Pitt Bridge was designed to hold four lanes of traffic in each direction, and construction began in 1956 to replace its two-lane predecessor, the Point Bridge. Spanning the Monongahela River, the Fort Pitt Bridge is 1,217 ft in length. The bridge was opened to traffic in 1959—15 months before the opening of …
No. 8 - Pfeiffer Canyon Bridge - Roads and Bridges
WEBJan 5, 2018 · The Pfeiffer Canyon Bridge was built and opened to the public just eight months after the original concrete structure was condemned, a process which normally would have taken about eight years to complete. Location: Big Sur Coast, Highway 1, Calif. Owner: Caltrans. Designer: Caltrans. Contractor: Golden State Bridge Inc.
Washington State DOT awards contract for I-405 widening and …
WEBAug 22, 2019 · The Washington State DOT (WSDOT) recently announced the award of a design-build contract to start construction on the I-405, Renton to Bellevue Widening and Express Toll Lanes project.. According to WSDOT, the contractor Flatiron West, Inc.-The Lane Construction Corporation Joint Venture (Flatiron/Lane) submitted the apparent best value proposal of over $704 million to complete design and ...
TranSystems and Lichtenstein Consulting Engineers Inc. join forces
WEBJune 7, 2007. TranSystems of Kansas City, Mo., and Lichtenstein Consulting Engineers, headquartered in Paramus, N.J., have joined into a single entity, combining two firms with a profound focus on transportation into one. The combined strength of the now-integrated companies results in a national transportation powerhouse of nearly 1,300 ...
Stealth technology visible in bridges | Roads and Bridges
WEBDec 28, 2000 · Stealth technology visible in bridges. Since the onset of the Cold War, the U.S. government has spent billions of dollars in the development of high technology for military applications. Now that the international competition has subsided, some of that technology is being transferred to civil uses. This may provide taxpayers with an opportunity ...
The Bear Mountain Bridge at 100 - Roads and Bridges
WEBSep 5, 2023 · The Bear Mountain Bridge was the first vehicular crossing of the Hudson River south of Albany, followed by the opening of the Mid-Hudson Bridge in 1930 and the George Washington Bridge in 1932. The BMB was the longest suspended span in the world when it opened, with a main span of 1,632 feet. It was the first bridge to be built with a …
NO. 1 ROAD: I-680 HOV Lane Completion and Express Lane …
WEBDec 2, 2021 · The I-680 project connects to a previous express lane project and results in a 25-mile continuous express lane from Martinez to San Ramon. It also eliminated a lane drop at North Main Street, which was the primary cause of congestion and bottlenecks for the 270,000 daily motorists on the corridor. “This is big news,” said Randy Iwasaki, who ...
Recommended practices for the installation and ... - Roads and …
WEBJul 7, 2021 · By: Juan M. Morales, P.E. We all have seen lane closures. They are often a necessity for construction and maintenance operations, and may result in reduced capacity, inconvenience to drivers, and highway worker exposure. Workers are often in close proximity to traffic, sometimes unprotected.
Arrests made in Boston’s Big Dig investigation
WEBMay 5, 2006 · Six men whose company supplied most of the concrete in the Big Dig were arrested Thursday, May 4, on federal charges alleging they falsified records to hide the substandard quality of materials delivered for the $14.6 billion, delay- and leak-plagued downtown highway tunnel project, the Associated Press reported.. The six men, all current or former employees of Aggregate Industries, face a ...