Hampton Roads Bridge-Tunnel project to expand capacity with fourth lane

The addition to the design could potentially increase capacity from 4,700 to 6,300 cars per hour

May 21, 2018
HRBT

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 floated early in the concept design in 2015, but officials decided to go with it earlier this year.

The land sections of I-64 will have three lanes in each direction. The existing tunnels will be converted to all westbound traffic (toward the Peninsula), and the new tube will take traffic eastbound (to South Hampton Roads). The “3-4-3 configuration” may alleviate some of the congestion and slowdowns that come with entering the tunnels. The design could increase hourly capacity from 4,700 to 6,300 cars.

During peak summer traffic, more than 100,000 vehicles a day cross the span, according to the Virginia DOT. The bridge-tunnel will keep two free lanes and add one permanent high-occupancy toll (HOT) lane, as well as a HOT lane shoulder that can be used during peak congestion.

The tunnel expansion is the largest roads project in Virginia history, and is estimated to cost more than $3.6 billion by the time construction is finished in 2024.

----------

Source: The Virginian-Pilot

Related Articles

Portal North Bridge Project in New Jersey
Image: Federal Transit Administration
The Federal Transit Administration (FTA) announced a $766.5 million Capital Investment Grant (CIG) agreement with New Jersey Transit (NJ TRANSIT) for…
January 14, 2021
Utah Valley University pedestrian bridge
Image: Utah DOT
Officials in the state of Utah are set to unveil a new pedestrian bridge that will connect Utah Valley University (UVU) with the UTA FrontRunner Orem…
January 13, 2021
Ground breaks on final Centennial Bowl phase in northwest Las Vegas
Image: Nevada DOT
The Nevada DOT (NDOT) this week broke ground on the $155 million final phase of the Centennial Bowl interchange where U.S. Highway 95 meets the 215…
January 12, 2021
The city of Moore, Oklahoma needed a relief route to reduce traffic congestion at the busy intersections on either side of the existing bridge at…
January 11, 2021
expand_less