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Road Zipper machine at the Golden Gate Bridge, San Francisco, California. A barrier transfer machine, also known as zipper machine or road zipper, is a type of heavy vehicle that is used to transfer concrete lane dividers, such as Jersey barriers, in order to relieve traffic congestion during rush hours. Many other cities use them temporarily ...
However during rush hour, a high-occupancy vehicle lane (HOV) zipper lane is added to the peak direction of travel, making five lanes flow in the peak direction and three in the other. After the interchange with the Massachusetts Turnpike, just before the route enters the Tip O'Neill Tunnel in Downtown Boston, it is reduced to six lanes. The ...
Southeast Expressway in and near Boston, Massachusetts; A reversible lane, also called a zipper lane, is in use on eastbound Interstate H-1 for traffic heading from Leeward Oahu to Pearl Harbor. It is open from 5:30 to 9:00 a.m. [32] The Golden Gate Bridge (6 lanes total, 2 reversible), connecting San Francisco with suburban Marin County.
On July 10, 2006, concrete ceiling panels and debris weighing 26 short tons (24 tonnes) and measuring 20 by 40 ft (6.1 by 12.2 m) fell on a car traveling on the two-lane ramp connecting northbound I-93 to eastbound I-90 in South Boston, killing Milena Del Valle, who was a passenger, and injuring her husband, Angel Del Valle, who was driving. [64]
The Leonard P. Zakim (/ ˈ z eɪ k ə m /) Bunker Hill Memorial Bridge (also known as "The Zakim") is a cable-stayed bridge completed in 2003 across the Charles River in Boston, Massachusetts. It is a replacement for the Charlestown High Bridge, an older truss bridge constructed in the 1950s.
This is a list of roundabouts in the state of Massachusetts in the United States.Intersections that are called traffic circles or roundabouts in the rest of the US are referred to as "rotaries" in Massachusetts, as well as other parts of New England including parts of Connecticut, [1] New Hampshire, [2] Maine [3] Rhode Island, & Vermont.
The main piers have sculptures that represent the prows of Viking ships.. Longfellow Bridge is a combination railway and highway bridge. It is 105 feet (32 m) wide, 1,767 feet 6 inches (538.73 m) long between abutments, and nearly one-half mile in length, including abutments and approaches.
A 1920 plan for Boston's Central Artery, based on the West Side Elevated Highway Traffic on the former Central Artery at mid-day (Demolished in 2003). A 1926 state report on rapid transit expansion recommended the conversion of the Atlantic Avenue Elevated to an elevated highway; however, it closed in 1938 and was demolished in 1942. [4]