North End in Boston in Suffolk County, Massachusetts — The American Northeast (New England)
Callahan Tunnel
Opened to Traffic, November 11, 1961
Photographed by Sean P. Flynn, November 6, 2026
1. Callahan Tunnel Marker
1920-1945
Second Lieutenant
10th Mountain Division
United States Army
Killed in action in Italy, April 14, 1945 during the final days of World War II
Beloved son of William F. Callahan Sr. and Kathleen M. Callahan
The Massachusetts Department of Transportation remembers Lieutenant Callahan on the occasion of the rededication of the Callahan Tunnel
Erected 2014 by Massachusetts Department of Transportation.
Topics. This memorial is listed in these topic lists: Roads & Vehicles • War, World II. A significant historical date for this entry is April 14, 1945.
Location. 42° 21.726′ N, 71° 3.284′ W. Memorial is in Boston, Massachusetts, in Suffolk County. It is in North End. It is at the intersection of Cross Street and North Street, on the right when traveling west on Cross Street. The marker sits over the tunnel's terminus with Interstate 93. Touch for map. Memorial is in this post office area: Boston MA 02109, United States of America. Touch for directions.
Regionally, this memorial is in Historic Boston. It is also in the American Northeast, in New England, and on the Eastern Seaboard.
this page online
Other nearby markers. At least 8 other markers are within walking distance of this marker: Fitzgerald Expressway Plaque (a few steps from this marker); John Francis Fitzgerald (within shouting distance of this marker); Tony DeMarco (within shouting distance of this marker); Boston Timeline (about 300 feet away, measured in a direct line); a different marker also named Boston Timeline (about 500 feet away); Rose Fitzgerald Kennedy Greenway (about 500 feet away); Zipporah Potter Atkins (about 500 feet away); William F. Callahan (about 500 feet away). Touch for a list and map of all markers in Boston.
Regarding Callahan Tunnel. The Callahan Tunnel through Boston Harbor, connecting the North End with East Boston, opened in 1961 parallel to the Sumner Tunnel, which was completed in 1934 and originally carried two-way traffic. During the "Big Dig" project of the 1990s and 2000s, the tunnel saw some modifications, and the
Photographed by Sean P. Flynn, November 6, 2026
2. Callahan Tunnel Marker over the tunnel's entrance below the North End
William Callahan Jr. was the son of the Massachusetts Turnpike Authority's chairman leading when this tunnel opened in 1961. Lt. Callahan was killed during fighting in Italy's Appenine Mountains, where the 10th Mountain Division engaged with German troops in the final months of the war in Europe. Originally buried in Italy, Lt. Callahan's body was repatriated in 1948 and buried at Holyhood Cemetery in Brookline.
Also see . . . Remembering Lt. William F. Callahan, Jr. and Rededication of the Callahan Tunnel. The North End Waterfront website shares information about the Callahan Tunnel, its 2014 redeciation and its namesake, William F. Callahan Jr. (Submitted on November 10, 2026, by Sean P. Flynn of Oak Park, Illinois.)
Photographed by Sean P. Flynn, November 6, 2026
4. North End neighborhood over the Callahan Tunnel
Credits. This page was last revised on November 10, 2026. It was originally submitted on November 10, 2026, by Sean P. Flynn of Oak Park, Illinois. This page has been viewed 3 times since then. Photos: 1, 2, 3, 4. submitted on November 10, 2026, by Sean P. Flynn of Oak Park, Illinois.
