Chesapeake Bay Bridge-Tunnel (CBBT) — Full Guide

The Chesapeake Bay Bridge-Tunnel (CBBT) is a combined bridge and tunnel crossing that connects the Virginia Beach area to the Eastern Shore of Virginia, spanning approximately 23 miles (37 km) across the mouth of the Chesapeake Bay. Completed in April 1964, the CBBT ranks among the longest bridge-tunnel complexes in the world, combining miles of trestle roadway, two underwater tunnels, two artificial islands, and several approach spans. The structure serves as a critical transportation link for millions of travelers each year, carrying commercial freight, military logistics, and civilian traffic between Virginia Beach, Norfolk, and the Delmarva Peninsula. Its construction replaced an aging ferry system that was routinely disrupted by winter storms, and it reshaped the economy and development patterns of both Hampton Roads and Virginia's Eastern Shore.

History

The idea of a fixed crossing over the mouth of the Chesapeake Bay had circulated among regional planners since at least the 1920s, but serious legislative action didn't come until after World War II. Ferry service across the bay was the only option for decades, and it was chronically unreliable. Storms in the 1950s frequently suspended operations for days at a time, cutting off access to Virginia Beach and the Eastern Shore and putting pressure on state officials to find a permanent solution.

In 1954, the Virginia General Assembly authorized the creation of the Chesapeake Bay Bridge-Tunnel Commission, a public authority charged with financing, constructing, and operating a fixed crossing. The Commission issued revenue bonds to fund the project rather than drawing on state appropriations, a financing structure that meant tolls would have to sustain the debt. Construction began in 1960, with the Peter Kiewit Sons' Company leading the primary contract. Workers contended with strong tidal currents, Atlantic storms, and the technical demands of placing precast concrete tunnel sections on the bay floor using the immersed-tube method. The tunnels were prefabricated in sections, floated into position, and sunk into dredged trenches before being connected and sealed.

The CBBT opened on April 15, 1964, under Governor Albertis Harrison, who presided over the dedication ceremony. The project cost approximately $200 million. Not without controversy, critics at the time questioned whether toll revenues would ever cover the debt, but traffic volumes exceeded early projections within the first decade. The Eastern Shore, long economically isolated, began attracting new investment almost immediately after the opening.

A second major phase of construction was completed in April 1999, when a parallel twin-bore tunnel was added alongside the original two tunnels to expand capacity and improve safety. That expansion increased the crossing's capacity from two lanes of traffic through each tunnel to four, reducing the bottleneck that had developed as traffic volumes grew. The CBBT carried more than 3.1 million vehicles in fiscal year 2023, according to the Commission's annual report.

A third expansion, the Thimble Shoal Channel Second Tunnel, broke ground in 2017 and opened in 2022, adding a second parallel bore at the structure's northern tunnel crossing and bringing the total to four tunnel tubes across two locations.

Structure and Engineering

The CBBT consists of trestle bridges, two tunnel crossings, two artificial islands, and approach causeways built across the lower Chesapeake Bay between Virginia Beach and Northampton County on the Eastern Shore. The two tunnel crossings, at Thimble Shoal Channel and Chesapeake Channel, were placed where the bay is deepest and where commercial shipping lanes pass. Sinking the roadway underground at those points allowed large vessels, including U.S. Navy ships from Naval Station Norfolk, to continue operating without any overhead clearance restriction. The trestle sections carry traffic across the shallower areas between the tunnels.

The two artificial islands, Fisherman Island at the southern end and the larger rest stop island near the midpoint, serve as transition structures between the bridges and tunnel portals. They weren't incidental. Building them required placing thousands of tons of rock and fill material on the bay floor, and they now double as wildlife habitat. Fisherman Island at the southern terminus is managed by the U.S. Fish and Wildlife Service as a national wildlife refuge.

The immersed-tube construction method used for the tunnels was still relatively new in the early 1960s. Sections were cast on land, towed to position, and lowered into dredged trenches on the bay floor. Each section was then connected to the adjoining piece and the trench was backfilled. This method allowed construction to proceed in deep, active water without building a cofferdam or using traditional mining techniques. The 1999 and 2022 expansion tunnels used refined versions of the same basic approach.

Concrete used throughout the structure was specified for corrosion resistance because the saltwater environment of the lower bay aggressively deteriorates standard construction materials. The CBBT Commission has ongoing programs for structural monitoring and maintenance, including regular inspection of the trestle piers and tunnel linings.

Tolls and Traffic

The CBBT is a toll facility, and revenue from those tolls funds operations, maintenance, and debt service on capital improvement bonds. As of 2024, the standard one-way toll for a passenger vehicle is $18.00, with a discounted commuter rate available for registered frequent users through an E-ZPass transponder account. E-ZPass is accepted and encouraged; cash payment is also available at toll plazas. Commercial vehicles are charged based on the number of axles.

Traffic volumes vary significantly by season. Summer months bring the heaviest loads as visitors travel to Virginia Beach and the Outer Banks of North Carolina, with some weekend crossing times extending to 45 minutes or more during peak periods. The crossing runs 24 hours a day, seven days a week, except when weather conditions require a closure or restriction.

Operations and Safety

The CBBT is exposed to open-water wind conditions across its full 23-mile length, and high winds are the most common cause of operational restrictions. The Commission uses a tiered wind advisory system. A Level 1 advisory restricts high-profile vehicles, including motorcycles, recreational vehicles, and tractor-trailers pulling empty or light trailers. A Level 2 advisory closes the crossing to all high-profile vehicles. A full closure is declared when sustained winds or gusts exceed safe limits for any vehicle type. Wind advisories are posted at the toll plazas and updated on the CBBT's website and social media channels. In February 2025, a Level 1 wind advisory was in effect for an extended period, prompting the Commission to remind travelers to check conditions before departing.

Motorcycles are permitted on the CBBT under normal conditions, but riders should check for wind advisories before travel. Recreational vehicles longer than 65 feet are subject to restrictions. Travelers with oversized or overweight loads must obtain a permit from the Virginia Department of Transportation before attempting a crossing.

A typical crossing takes approximately 25 to 30 minutes under normal traffic conditions. Speed is limited to 55 mph on the trestle sections and reduced within the tunnels. The tunnels are one-directional, with traffic separated by tube.

Incidents and Accidents

The CBBT's exposure to weather, combined with the physical consequences of any vehicle leaving the roadway over open water, makes safety a persistent concern. In February 2026, a tractor-trailer driven by a Perdue Farms employee went off the structure and into the bay. The driver was killed. The incident prompted the Commission to review barrier and response protocols. Emergency response to in-water incidents involves coordination between the CBBT's own emergency personnel, the Virginia Marine Police, and the U.S. Coast Guard.

Wind-related vehicle incidents have occurred historically during advisory periods when some drivers have proceeded without heeding restrictions. The Commission's advisory system exists specifically to prevent high-profile vehicles from being caught on the exposed trestle spans in dangerous conditions. Not every incident results in fatality, but the open-water setting leaves little margin for error when a vehicle loses control.

Geography

The CBBT connects Virginia Beach, at its southern terminus near the Bowers Hill area and the US-13 corridor, to the Eastern Shore of Virginia in Northampton County near the community of Cape Charles. The northern approach lands on the peninsula known as the Delmarva Peninsula, giving the crossing strategic importance as the only direct fixed link between the peninsula and the Hampton Roads metropolitan area. Without the CBBT, drivers traveling from the Eastern Shore of Virginia to Virginia Beach must drive north through Maryland and Delaware and back south through the rest of Virginia, a detour of well over 100 miles.

The crossing sits at the mouth of the bay where it opens into the Atlantic Ocean. Water depths along the route range from less than 10 feet on the shallow trestle sections to more than 75 feet at the main shipping channel crossings. Currents are strong and tidal ranges are moderate, but the primary weather challenge is wind from Atlantic storm systems that can develop quickly and reach the structure with little warning.

Geographically, the CBBT is part of US Route 13, which runs the length of the Delmarva Peninsula north to Wilmington, Delaware. It also connects to Interstate 64 and US Route 60 on the Virginia Beach side, tying into the broader Hampton Roads highway network. The structure doesn't directly carry Interstate highway designation, but it feeds traffic to and from the I-64 corridor.

Culture

The CBBT has worked its way into the regional identity of Hampton Roads and Virginia's Eastern Shore in ways that go beyond its function as a road. For residents of the Eastern Shore, it's the primary connection to the rest of Virginia and to employment centers in Norfolk and Virginia Beach. For many Virginia Beach families, it's simply the road north to the ferry alternative they no longer need.

The structure has appeared in photography, regional literature, and local journalism with enough regularity that it's become a recognizable image on its own terms. The view from the trestle spans, with open water stretching to the horizon and the tunnel portals disappearing below the surface, has been used in tourism marketing and editorial photography for decades. The rest stop island near the midspan draws travelers who stop not just for fuel but for the experience of standing in the middle of the bay, surrounded by water on all sides.

The CBBT also carries some weight as a symbol of what large-scale public investment built in the postwar era. It was financed by bonds, built by thousands of workers, and opened without a direct federal funding contribution. That history is part of how the region talks about it.

Economy

The CBBT's economic contribution to Hampton Roads and the Eastern Shore is difficult to separate from the broader development history of the region, but several effects are well-documented. Before 1964, the Eastern Shore of Virginia was one of the most economically isolated parts of the state. The opening of the bridge-tunnel gave agricultural producers direct access to the Hampton Roads wholesale market and enabled faster shipment of seafood, poultry, and produce to buyers in the Mid-Atlantic region. The poultry industry, which had already taken root on the Delmarva Peninsula, expanded its operations south into Virginia's Eastern Shore counties in part because the crossing made logistics more viable.

Tourism to Virginia Beach receives a significant portion of its visitors from points north via the CBBT, particularly from Maryland, Delaware, and Pennsylvania. The crossing cuts hours from the drive compared to routing through the interior of Virginia. It's also a route for commercial freight moving between the Hampton Roads port complex and the Delmarva Peninsula, including truck traffic serving the port terminals at Norfolk International Terminals and the Portsmouth Marine Terminal.

Real estate values in areas near the southern terminus have historically tracked with the CBBT's operational reliability. Periods of heavy traffic growth have corresponded with residential development in areas like Cape Charles and the northern neck of Northampton County on the Eastern Shore side.

Tourism and Recreation

The CBBT maintains a fishing pier and rest area on the midpoint island. The fishing pier is open to the public for a fee and is one of the few places in Virginia where anglers can fish directly over deep bay water without a boat. Flounder, striped bass, and bluefish are among the species commonly caught from the pier. The pier and rest stop are accessible only to vehicles that have paid the toll; there's no separate access road.

The artificial island also draws visitors who simply want to stop and take in the setting. It's one of the more unusual roadside stops on the East Coast, a small platform of land surrounded entirely by open water, with bridge spans extending in both directions and ships occasionally passing in the shipping channel nearby.

Fisherman Island at the southern end of the CBBT is managed as part of the Eastern Shore of Virginia National Wildlife Refuge by the U.S. Fish and Wildlife Service. It's not open to general public access, but it provides important habitat for migratory birds and shorebirds. The island and the trestle pilings of the CBBT itself function as an artificial reef structure, attracting marine life and supporting a small but recognized recreational diving interest in the surrounding waters.

Guided tours of the CBBT were historically offered but availability has varied. Visitors seeking current tour information should check directly with the Commission.

Neighborhoods

The communities closest to the southern terminus of the CBBT sit within the Virginia Beach city limits. The Bowers Hill area and the corridor along US-13 south of the toll plaza have seen commercial development tied to traffic from the crossing, including fuel stations, fast food, and commercial freight services.

On the Eastern Shore side, the town of Cape Charles is the nearest incorporated community to the northern terminus. Cape Charles has undergone a modest revitalization in recent decades, with historic preservation efforts, small-scale tourism, and new residential development attracting buyers from the Hampton Roads area who can now commute or retire there while remaining within reasonable distance of the city. The CBBT is central to that dynamic.

The broader Northampton County area on the Eastern Shore remains largely rural and agricultural, with a smaller population and lower property values than the Virginia Beach side. The disparity reflects the asymmetric economic geography of the crossing: Virginia Beach is a large metropolitan area, while the Eastern Shore is a narrow peninsula with limited land area and a historically thin economic base.

Education

The CBBT has been incorporated into engineering, environmental science, and transportation planning curricula at several Virginia universities. Old Dominion University in Norfolk has used the structure as a case study in its civil and environmental engineering programs, focusing on the immersed-tube construction method, long-term maintenance of saltwater infrastructure, and the structural performance of trestle bridges under tidal load conditions. Students have conducted field observation visits to the crossing as part of courses on infrastructure systems and coastal engineering.

The CBBT Commission has also participated in public outreach efforts that include school programs and educational materials about the crossing's history and engineering. Local museums in the Hampton Roads area, including the Mariners' Museum in Newport News, have included exhibits and materials related to the bay's transportation history that touch on the CBBT's construction and significance.

For environmental educators, the CBBT offers a concrete case study in the tradeoffs of large coastal infrastructure projects, including effects on navigation, marine habitat, and long-term resilience to sea-level rise and storm intensity. The structure's lifespan now extends past 60 years, long enough that discussions of renovation, replacement, and climate adaptation are becoming part of how it's studied.

Demographics

Virginia