Bridge Design

N.C.’s Bonner Bridge project enters final phase

Photo: NCDOT Flickr

News January 10, 2019
The Herbert C. Bonner Bridge, which carries N.C. 12 over Oregon Inlet between Hatteras and Bodie islands, is well past its design life and is being replaced with a new bridge that will better withstand its coastal environment. Work began in March 2006, and now it looks like the project is segueing...
Hunter Station Bridge
Article January 02, 2019
The Hunter Station Bridge, a $24 million, four-span replacement structure carrying Rte. 62 over the Allegheny River, recently opened in Tionesta Township, Pa.   The 1,124-ft-long bridge was designed with numerous innovations and sustainability measures to enhance safety and provide environmental...
Illinois-Iowa I-74 bridge will feature eight-story pedestrian elevator

Image: I-74 Bridge Twitter feed

News December 31, 2018
Work has been progressing since Roads & Bridges’ visit to the I-74 Bridge project in the Quad Cities early this year, and now it looks as though one unique aspect of the project is beginning to come together.   This past week, just after the holidays, the bridge’s Twitter account posted a photo...
Connecticut DOT making progress on Walk Bridge replacement
News December 24, 2018
Few are the bridges in the U.S. that have been around as long as the Norwalk, Conn., Walk Bridge. The 122-year-old structure has been a stalwart corridor, carrying rail traffic on Metro-North’s New Haven Line as well as Amtrak service on the Northeast Corridor that serves passengers traveling...
Colonial Road Bridge
Article December 17, 2018
In 2014, the Long Island Rail Road (LIRR) initiated the full replacement of a 115-year-old bridge in the village of Thomaston, N.Y. Thomaston, located in Nassau County, Long Island, is a mere 0.4 sq miles. The town is separated in two by a single-line railroad track which opened in 1898, and has...
Sharid K. Amiri
Article November 19, 2018
California, the fifth largest economy in the world and the most populous state in the union, is considered a seismic-prone state where earthquakes play an important role in shaping the design and construction of the infrastructure, critical to its economic well-being. The 1994 Northridge and the...
NTSB FIU bridge investigation November update

Image: NTSB

News November 16, 2018
The National Transportation Safety Board (NTSB) this week released an investigative update on the collapse of the Florida International University (FIU) pedestrian bridge in Sweetwater, Fla., revealing significant errors made in the design of the bridge that collapsed and killed six people back in...
North Washington Street Bridge
Article November 02, 2018
Boston’s 120-year-old North Washington Street Bridge over the Boston Inner Harbor carries 42,000 vehicles per day, heavy pedestrian traffic and numerous utilities from Boston’s North End and West End areas to Charlestown.   Among the vehicles crossing the bridge each day are four major bus routes...
I Street Bridge Sacramento

Image: USFWS Photo/Steve Martarano via Wikimedia Commons

News November 01, 2018
The city of Sacramento this week hired San Francisco-based T.Y. Lin International as the lead architect for the I Street Bridge replacement project over the Sacramento River.   The price tag for the new bridge—which is more than 100 years old—has more than doubled, reaching $172 million. The...
Wildcat Creek Bridge redesign U.S. 12

Image: Stantec

News October 24, 2018
The Washington State Department of Transportation (WSDOT) celebrated the opening of the newly replaced Wildcat Creek Bridge on U.S. 12 east of White Pass, with a grand opening event on Oct. 22 attended by local and state officials and dignitaries.   Stantec, a global engineering and consulting firm...
Bridge collapse, bridge design, bridge construction
News October 23, 2018
Nobody wants a starring role in this spotlight, but it looks like the Florida Department of Transportation (FDOT) was far from the understudy it claims to be in regards to the FIU bridge collapse back in March.   According to NBC6 Miami, FDOT engineer Thomas Andres wrote to the design-build team in...
Bridge rebar dowel
Article September 19, 2018
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. The reorganization was headed up...
transportation pilot projects
News September 17, 2018
State officials recently announced that the Pennsylvania Department of Transportation (PennDOT) is aiming to increase opportunities for Small Business Enterprises (SBE) through a new pilot program where SBEs can compete to work as prime consultants on federally assisted engineering and design...
Several people reported dead after bridge collapse in Genoa, Italy

Source: screen capture,

News August 14, 2018
At least 37 people have died after a section of a highway bridge in northern Italy partially collapsed Tuesday, according to Italian officials.   CNN reports that Angelo Borrelli, head of the Italian Civil Protection Agency, told journalists that around 30 vehicles and several heavy-duty trucks...
Long Island Sound bridge and tunnel crossing is no more
News June 29, 2018
The Cuomo administration this week abandoned its proposal to build either a new bridge or underground tunnel across Long Island Sound after local opposition to the plans came to the fore.   Paul Karas, acting commissioner of the New York State Department of Transportation (NYSDOT), said the project...
Houston Ship Channel Bridge
News June 04, 2018
The Harris County Toll Road Authority (HCTRA) has begun a $962 million project to replace the bridge across the ship channel on the Sam Houston Tollway from SH 225 to I-10 in Houston, Texas.   The HCRTA is undertaking its largest infrastructure project ever to replace the Ship Channel Bridge so it...
FIU bridge
News May 14, 2018
The Miami Herald has reportedly obtained documents from Florida International University (FIU) through a public records request that indicate cracks were observed in the newly installed campus pedestrian bridge two weeks before its deadly collapse.   Photographs and an internal email that had...
Sam White Bridge MBI move

Night work on Michael Baker International’s Sam White Bridge move in 2011 using SPMTs.

Article April 03, 2018
The whole point is about safety. At least, that is one of many benefits of accelerated bridge construction (ABC) as explained by those who have been heavily involved in the process for dozens of ABC projects over the last decade.   According to the Federal Highway Administration’s (FHWA) final...
FIU bridge collapse
News March 27, 2018
According to reports from The Associated Press (AP), construction of the FIU pedestrian bridge that collapsed and killed six people was behind schedule and millions over budget, partially due to a key change in the design and placement of one of its support towers.   Documents obtained by AP last...
JTB Bridge

The main Flyover 1 bridge is a new ramp carrying traffic from SB I-95 to EB JT Butler Blvd., designed to alleviate traffic jams and safety issues caused by the previous configuration.

Article February 02, 2018
When it comes to bridge design, advancements in technology often take a long time to be widely accepted. After all, if a technique has been proven to work, why reinvent the wheel?   For some time, this has been the thinking when it comes to spliced girder bridges. Traditionally, spliced girder...
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