![]() ![]() A view of traffic on the Chesapeake Bay Bridge-Tunnel. Mike Crist, the deputy executive director overseeing infrastructure for the Chesapeake Bay Bridge-Tunnel Authority, said the guardrails at the CBBT are TL (Test Level)-3 barriers, which are “designed to keep cars and pickups from departing the road.”Įven as the bridge was designed more than 60 years ago, Crist said, the barriers would meet federal specifications even today based on current traffic and usage. The guardrails at the HRBT and Monitor-Merrimac are designed to keep even tractor-trailers on the bridge, though that’s not guaranteed at all speeds and angles. That system isn’t nearly as strong as the concrete jersey barriers at the Hampton Roads and the Monitor-Merrimac bridge-tunnels. Those railings, designed in the 1950s, are made to withstand glancing blows from cars or pickups going 62 mph or less. The hollow tubes are supported by aluminum posts every eight feet that are bolted down to a concrete curb. ![]() Those barriers consist of a series of three aluminum pipe rails running alongside the roadway. E-Pilot Evening Edition Home Page Close Menuīut that recognition wasn’t for the guardrails.
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