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The Hoosac Tunnel (also called Hoosic or Hoosick Tunnel) is a 4.75-mile (7.64 km) active railroad tunnel in western Massachusetts that passes through the Hoosac Range, an extension of Vermont's Green Mountains.
The clearance space between a train and the tunnel is often small. Pictured is a London Underground Northern line 1995 Stock train emerging from the tunnel north of Hendon Central station. A loading gauge is a diagram or physical structure that defines the maximum height and width dimensions in railway vehicles and their loads.
The cost of the two tunnels was $15.6 million (equivalent to $219 million in 2023 [16]), which is $475 per linear foot ($1,558 per linear meter). Each of the ornamental bronze characters on the east and west portals (entrances) of the tunnel cost $40 and a separate cast had to be made for each character.
The code also defines the clearance that is shorter than the physical clearance to account for sag curves, bridge deflection and expected settlements with a recommendation of minimum clearance of 5 metres (16 ft 5 in). [2] In UK, the "standard minimum clearance" for structures over public highways is 16 feet 6 inches (5.03 m). [3]
The Housatonic Railroad (/ ˌ h uː s ə ˈ t ɒ n ɪ k / HOOS-ə-TON-ik; reporting mark HRRC) is a Class III railroad operating in southwestern New England and eastern New York.It was chartered in 1983 to operate a short section of ex-New York, New Haven and Hartford Railroad in northwestern Connecticut, and has since expanded north and south, as well as west into New York State.
In March 2012, the Government Accountability Office (GAO), a federal agency, published a report entitled Commuter Rail Potential Impacts and Cost Estimates for the Cancelled Hudson River Tunnel Project, [64] which concluded that Christie's basis for cancellation was a misrepresentation and that he misstated the estimated costs, cost over-runs ...
The tunnel lining was notched at the crown to allow clearance under the wire for freight trains, which mainly removes shotcrete placed in 2004, but some of the historical brick lining was removed as part of the tunnel modification work. In addition, up to 21 inches (530 mm) of the decorative stone portal was removed.
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