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Archive for the ‘Bridges’ Category

ACEC’S ENGINEERING INC. — The Enduring Legend of Gridlock Sam

Monday, September 11th, 2017
The Enduring Legend of Gridlock Sam: Sam Schwartz addresses employees at the company

“Gridlock Sam” Schwartz has always had an outsized presence in his endeavors. “He is, inarguably, the most beloved transportation engineer alive,” says Charles Komanoff, a New York City transport economist, who then adds with a smile, “Admittedly, there’s not much competition.”

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Washington, DC: Fly-Through of the Proposed South Capitol Bridge

Thursday, August 31st, 2017
Washington, DC: Fly-Through of the Proposed South Capitol Bridge

Washington D.C. is to replace the Frederick Douglass Memorial Bridge to the tune of $441 million. AECOM is leading the design of the new bridge with Archer Western Construction and Granite Construction carrying out the project.

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What’s Working: Governor Cuomo on the Making of New York’s Massive New Bridge

Monday, August 28th, 2017
What’s Working: Governor Cuomo on the Making of New York’s Massive New Bridge

Part of the new, state-of-the-art bridge replacing the aging Tappan Zee over New York’s Hudson River opens Friday. Norah O’Donnell climbed to the top of the Gov. Mario M. Cuomo Bridge with New York Gov. Andrew Cuomo to find out what it took to get the bridge built on time and on budget in four years.

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Bridge construction projects – happening at ‘almost’ the speed of light!

Tuesday, August 22nd, 2017

Two city bridge superstructures demolished, moved and replaced in 16 hours? Impossible? No…it can happen and Utah’s Department of Transportation just proved it…This impossible-sounding accomplishment is a result of a program called Accelerated Bridge Construction (ABC). It allows completion of bridge projects in record time. But, these kinds of success stories are not just happening in Utah.

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IBTTA Announces 2017 International Toll Excellence Award Winners

Thursday, July 27th, 2017
IBTTA Logo

The 2017 International Bridge, Tunnel and Turnpike Association’s (IBTTA) Toll Excellence Award Winners are revolutionizing mobility for drivers around the globe by implementing cutting-edge solutions to 21st century transportation challenges…The annual awards presented by IBTTA, recognize innovative strategies to help ease traffic flow, relieve congestion and increase safety for the global driving public. The awards are presented in the following categories: Administration and Finance; Customer Service and Marketing; Social Responsibility; Technology; Toll Operations, Engineering and Maintenance; and Private Sector Innovation.

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ACEC Engineering Excellence 2017: Franklin Avenue Bridge Rehabilitation in Minneapolis, MN

Monday, July 24th, 2017
HNTB Corporation, Franklin Avenue Bridge Rehabilitation

Major restoration of this historic five-span arch bridge over the Mississippi River would normally require a two-year closure, yet the span was reopened to traffic after just 116 days. With the renowned 1923-era Minneapolis landmark needing extensive structural rehabilitation, the project team designed and fabricated numerous bridge elements and systems, including deck panels, rail panels, cap beams, and ornamental railing panels, prior to closing the bridge to traffic. The design also included polished stainless steel plates embedded in the underside of the precast deck panels to reduce the number of needed expansion joints. The project is a model for reconstructing a bridge within a short time frame.

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ACEC Engineering Excellence 2017: 130th & Torrence Grade Separation in Chicago, IL

Tuesday, July 11th, 2017
Alfred Benesch & Company, 130th & Torrence Grade Seperation

One of Chicago’s most noted traffic bottlenecks has been transformed into a smooth-flowing multi-tiered interchange that is also helping spur development of the nearby Chicago Manufacturing Campus. Each day, more than 38,000 vehicles, 50 freight trains and 41 passenger trains used the intersection, creating a crowded logjam. Further complicating the project was its close proximity to an automotive assembly plant, a railroad mixing yard, a residential area, and protected marsh area. The project realigned roadways and added six new bridges, including a 4.75-million-pound steel railroad truss bridge assembled in a nearby staging area then transported in just four hours to its permanent location.

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Tallulah Falls, GA: Abandoned Piers of the Tallulah Falls Bridge

Friday, June 23rd, 2017
Tallulah Falls, GA: Abandoned Piers of the Tallulah Falls Bridge

The Tallulah Falls Railway crossed Tallulah Falls Lake on a 585-foot bridge built in 1913 as the lake was filling. The deck-style plate girder bridge replaced an earlier wooden truss structure. When the railroad was abandoned in the early 1960s, the steel spans were removed and recycled. The concrete piers were left standing because they had no salvage value and demolition would have been costly.

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EARTHCAM Timelapse of Bayonne Bridge – Staten Island to New Jersey

Wednesday, June 21st, 2017
EARTHCAM Timelapse of Bayonne Bridge – Staten Island to New Jersey

Progress on the Port Authority’s Bayonne Bridge “Raise the Roadway” project as of May 2017. Watch the iconic bridge gain a new roadway deck, 215 feet above mean high water – and watch as workers begin to remove the lower deck. The original roadway’s removal will allow navigational clearance for the new generation of larger, more efficient and environmentally beneficial container vessels.

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ACEC Engineering Excellence 2017: Sellwood Bridge Replacement in Portland, OR

Tuesday, June 20th, 2017
Sellwood Bridge Replacement in Portland, OR

A picturesque, three-arch bridge replaces a deteriorating 1925-era structure that was threatened by an encroaching hillside. The project team incorporated advanced seismic resilient bridge components and innovative landslide mitigation systems to stabilize the hillside. They also trimmed a year off the construction schedule by shifting the original steel deck truss to one side using hydraulic jacks, allowing the bridge to remain in service during construction.

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