Tunnels
Image: Amtrak
The Federal Transit Administration (FTA) rated the Hudson River rail tunnel project between New York and New Jersey with a medium-low grade in its most recently released ratings for infrastructure projects around the country.
According to the Associated Press, this is the same rating the agency...
Image: SANDAG
On Tuesday, March 12, La Jolla Colony Drive in San Diego will be closed for preparations associated with the construction of a Mid-Coast Trolley underpass.
This underpass will allow the Trolley to pass under La Jolla Colony Drive as it travels along the eastern side of I-5. The future Trolley...
Image: Boring Company
Elon Musk and the Boring Co. this week unveiled a much-anticipated 1.4-mile test tunnel for transporting vehicles underground in the next step of a larger plan to alleviate traffic conditions in Los Angeles County.
The L.A/Hawthorne test tunnel took special guests and media attendees for rides in...
Image: WSDOT
The Washington State Department of Transportation (WSDOT) recently announced its plans for the demolition of the Alaskan Way Viaduct in Seattle, which is scheduled to begin in February 2019.
The work to demolish the structure will take approximately six months to complete as crews move along the...
Image: Boring Company
Elon Musk's Boring Co. is abandoning plans to build a 2.5-mile test tunnel underneath the 405 freeway and Sepulveda Boulevard in the Westside area of Los Angeles.
The controversial project had been the focus of a lawsuit filed by two neighborhood groups, accusing L.A. officials of violating state...
The Chesapeake Bay Bridge-Tunnel sees 11,000 vehicle crossings per day, which increases to 25,000 daily crossings during the peak summer season.
When it opened in 1964, the Chesapeake Bay Bridge-Tunnel was considered one of the seven engineering wonders of the modern world—incorporating two-lane bridges and tunnels for vehicular traffic to get from southern Virginia to the Delmarva Peninsula in Delaware.
The 17.6-mile vehicular toll...
Image: LaDOTD
Transportation Secretary Elaine Chao recently joined Sen. Bill Cassidy (R-La.) to formally announce the award of a $45 million Infrastructure for Rebuilding America (INFRA) grant to the Louisiana Department of Transportation and Development (LaDOTD).
The grant will be used for the Belle Chasse...
Bertha will not be coming in contact with the Alaskan Way Viaduct during demolition.
That’s a good thing, because crews will have no more time to spare when they rip down the 1953 structure piece by piece. Bertha was the tunnel-boring machine used to create the new S.R. 99 tunnel, which will...
Image: Virginia DOT
The Hampton Roads Bridge-Tunnel (HRBT) expansion project will officially be widening the tunnel to four lanes instead of three.
HRBT project officials recently explained that the cost difference would be negligible and that the four-lane version would actually be easier to build. The idea was...
Image: KUSA-TV (Denver)
Colorado transportation leaders and local elected officials came together Tuesday to discuss plans to improve a congested stretch of I-70.
The Colorado Department of Transportation (CDOT) held a press conference below the bridge at the I-70 and U.S. 6 interchange. According to officials, the...
Image: LaDOTD
The Louisiana Department of Transportation and Development (LaDOTD) announced plans for the department to move forward with soliciting partners for its very first public-private partnership (P3).
The P3 venture would provide the estimated $122 million required to replace the Belle Chasse Tunnel...
Image source: WVEC-TV (Norfolk, Va.)
A ribbon cutting ceremony was held Friday morning to celebrate the opening of the Elizabeth River Tunnels project in Norfolk, Va.
The $2.1 billion project created a new two-lane tunnel under the Elizabeth River, upgraded the Midtown and Downtown tunnels and extended the MLK Expressway.
Although...
Image source: Washington Department of Transportation
As the Washington State Department of Transportation (WSDOT) prepares to open the new S.R. 99 tunnel, demolition of the Alaskan Way Viaduct is slated for early 2019 in Seattle.
WSDOT launched an online open house Thursday to show the public what the work will look like and start allowing comment...
Building a new rail tunnel under the Hudson River and fixing the existing one could cost nearly $13 billion—a steep increase over an earlier estimate of $7.7 billion, according to a report released on Thursday.
Transit officials are proceeding with planning for the project, which would improve a...
Image source: WTNH-TV
Parts of I-84 and I-91, heavily congested highways in Connecticut, may be going underground after the state Senate approved the plan to build a tunnel underneath the Hartford and Connecticut River.
For years, the Connecticut Department of Transportation (CDOT) has known it had to do something to...
Image source: KUOW/Kate Walters
As dozens of people looked on Tuesday, Bertha broke through to daylight after a nearly 2-mile dig under Seattle that took almost four years. Seattle is one step closer to replacing the aging Alaskan Way viaduct and moving a 2-mile section of S.R. 99 underground.
Bertha is the largest tunnel-...
The North Carolina Department of Transportation (NCDOT) has unveiled plans to eliminate seven railroad crossings in the next few years.
Locomotives barreling across roadways often cause commuter back-ups and wrecks, which has become a point of concern for both residents and transportation...
Image source: Steve Ringman/The Seattle Times
Recent surveys found that the Highway 99 tunnel is a few inches off course, and Seattle Tunnel Partners (STP) has stopped digging until early next week to perform more measurements.
STP project manager Chris Dixon said late Wednesday afternoon that surveys found the concrete tunnel rings being...
The Port Authority of New York and New Jersey proposed a $32 billion capital plan for the next decade that includes $2.7 billion to build a tunnel under the Hudson River and rehabilitate the century-old one damaged by Superstorm Sandy.
The sum set aside for the tunnel is a fraction of the $24...
Until recently, the Midtown Tunnel connecting Norfolk and Portsmouth, Va., held the distinction of being considered the most heavily traveled two-lane road east of the Mississippi River.
In the more than 50 years since its original construction, traffic volume has risen from 8,400 vehicles per...
