Support for InfrastructureUSA.org
has been provided by these organizations and individuals:

John Hennessy III,
P.E.

Archive for the ‘Bridges’ Category

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.

View this complete post...

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.

View this complete post...

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.

View this complete post...

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.

View this complete post...

ACEC Engineering Excellence 2017: Lake Delhi Dam in Delhi, IA

Monday, June 5th, 2017
2017 ACEC Engineering Excellence Awards

Stanley Consultants of Muscatine, IA has earned an Honor Award for exemplary engineering achievement in the American Council of Engineering Companies’ (ACEC) 50th annual Engineering Excellence Awards (EEA) for the Lake Delhi Dam in Delhi, IA. Six years after a devastating rain breached the original earthen Lake Delhi Dam, turning a popular nearby recreational attraction into […]

View this complete post...

Ironton, OH: Demolition of Old Ironton-Russell Bridge

Friday, May 26th, 2017
Ironton, OH: Demolition of Old Ironton-Russell Bridge

After serving for nearly 100 years, the old Ironton-Russell Bridge was finally demolished this May. Much of the bridge had already been removed, and the final segment was dropped into the water by controlled detonation.

View this complete post...

Infographic: The Dangerous State of American Bridges

Friday, May 12th, 2017
A01 (4)

With data from the American Road & Transportation Builders Association (ARTBA), we examined where the busiest structurally deficient bridges are located, how many people cross them each year, when they were originally built, and which states are attempting to make repairs. Is your state home to one of these bridges? Read on to find out.

View this complete post...

2017 ACEC Grand Conceptor Award Winner: SR 520 Floating Bridge in Seattle, Washington

Monday, May 8th, 2017
2017 ACEC Grand Conceptor Award Winner: SR 520 Floating Bridge Seattle, Washington

The ACEC 2017 Engineering Excellence Awards “Grand Conceptor” Winner: SR 520 Floating Bridge Seattle, Washington Designed by HDR.

View this complete post...

Atlanta, GA: I-85 Bridge Rebuild Time Lapse

Tuesday, May 2nd, 2017
Atlanta, GA: I-85 Bridge Rebuild Time Lapse

A time lapse video showing the progress of the I-85 rebuild project at Piedmont Road.

View this complete post...

Seattle, WA: SR 520 Floating Bridge Documentary

Friday, April 28th, 2017
Seattle, WA: SR 520 Floating Bridge Documentary

This short documentary tells the story of the new floating bridge across Lake Washington in Seattle, Washington. The bridge was a project of the SR 520 Bridge Replacement and HOV Program and opened to traffic in April 2016.

View this complete post...

Receive Infra Update, our email newsletter.

Follow InfraUSA on Twitter Facebook YouTube Flickr

CATEGORIES


Show us your infra! Show us your infra!

Video, stills and tales. Share images of the Infra in your community that demands attention. Post your ideas about national Infra issues. Go ahead. Show Us Your Infra!  Upload and instantly share your message.

Polls Polls

Is the administration moving fast enough on Infra issues? Are Americans prepared to pay more taxes for repairs? Should job creation be the guiding determination? Vote now!

Views

What do the experts think? This is where the nation's public policy organizations, trade associations and think tanks weigh in with analysis on Infra issues. Tell them what you think.  Ask questions.  Share a different view.

Blog

The Infra Blog offers cutting edge perspective on a broad spectrum of Infra topics. Frequent updates and provocative posts highlight hot button topics -- essential ingredients of a national Infra dialogue.