Vital Statistics

Here are a bunch of important Hoosac Tunnel facts and figures.
First Proposed (for canal)
1819
Chartered
1848
Commenced
1851
Headings met
November 27, 1873
Completed
July 1, 1876
Total Length
25,081 feet or 4.74 miles
East Portal to Central Shaft
12,837 feet
West Shaft Depth
318 feet
West Shaft to West Portal
2,497 feet
Well #4 Depth
215 feet
Well #4 To West Portal
1548 feet
Supplementary Shaft Depth
277 feet
Supplementary Shaft to West Portal
2233 feet
Central Shaft Depth
1,028 feet
Central Shaft to West Shaft
9,694 feet
Central Shaft Dimensions
15(NS)x27(EW) feet elliptical
West Shaft Dimensions
14X10 feet
Supplementary Shaft Dimensions
13X6 feet
Well #4 Dimensions
6X6 feet brick lined
Eastern Summit above grade
1429 feet
Western Summit above grade
1718 feet
Error where the Central Shaft heading met the eastern heading.
5/16 inch
Error where the Central Shaft heading met the western heading
9/16 inch
Water Pumped from the Central Shaft
214 gal/min
Water discharge at East Portal
100 gal/min
Water discharge at West Portal
600 gal/min
Rock Excavated
About 2 Million tons
Height
20 feet
Midsection Width
24 feet
Base Width
23 feet
Hand Drill advancement per month
About 50 feet
Burleigh Drill advancement per month
About 155 feet
Stone (from east to west)
Rowe Schist, Stamford Granite Gneiss, Metamorphic Conglomerate, Hoosac Schist, Stockbridge Limestone
Men employed during peak
About 900
First Train through
February 9, 1875
First Freight Train
April 5, 1875
First Passenger Train
October 13, 1875
East Portal Elevation
779 feet above sea level
West Portal Elevation
777 feet above sea level
Center Elevation
835 feet above sea level
West Façade Finished
Mid 1874
East Façade Finished
November 1877
Years Massachusetts spent over half the yearly budget paying off Hoosac debt
10 years
Cost
Between 17 and 21 million $ in 1874
Number bricks used in arching
20,000,000+
Feet of brick lining
7573 feet
Feet of brick tubing
883 feet
Distance between field phones
3000 feet
Lives lost during construction
195
Lives lost after construction
~30
Year Double track was installed
1885
Year electrification was implemented
1911
Year electrification was removed
1946
Steel door installed at West Portal
1954
Reduction to single track
1957
Passenger service ended
1958
Single track centered
1973
Height increased for triple stack cars
1997
Continuous weld rail installed
2005