Interstate 90 Eastern Terminus: Boston, Massachusetts

Eastern Terminus - Massachusetts 1A - East Boston, Massachusetts
Perspective from Interstate 90 east
The Interstate 90 extension through Logan International Airport to Massachusetts 1A is now open. The extension consists of two connected tunnels. From the Interstate 93 exit, Interstate 90 enters the Fort Point tunnel and emerges briefly in South Boston. It then connects to the Ted Williams tunnel, proceeding under Boston Harbor and emerging at Logan Airport. Traffic that does not take the Airport Exit curves along Interstate 90 past the airport to Massachusetts 1A North in East Boston.
Interstate 90 eastbound within the Prudential Tunnel southwest of downtown Boston. Pictured here is the underground ramp departure for Prudential Square and Copley Square. Exit 22 features an ascending loop to the surface at the intersection of Stuart and Dartmouth Streets. The internally lit exit signs also feature the first Interstate 93 guide sign to Massachusetts Turnpike eastbound motorists. Photo taken by Gary S. Peterson (02/03).
Now east of the Prudential Tunnel approaching the historic eastern terminus at Interstate 93. The Interstate 93 exit sign is in the form of a warning sign for the curvature of the associated ramp. A ramp to South Station is also included to the upcoming off-ramp. For the Interstate 90 mainline, the first indication of the Fort Point Tunnel is given. Photo taken 06/27/05.
Exits 24ABC provide the connections to Interstate 93 (north and south) and South Station (Kneeland and South Streets). Incidentally Exit 24A was the ramp to Interstate 93 south and Exit 24C the ramp to Interstate 93 north originally. Those suffixes switched upon completion of the completed ramps as part of the Big Dig project. Photo taken 06/27/05.
The first guide sign of the new Exit 25/South Boston exit is displayed to Interstate 90 eastbound motorists before the Exit 24ABC interchange with Interstate 93. The South Boston exit features a ramp to Summer and Congress Streets. Photo taken 06/27/05.
A second reminder of the ramp curvature for Exit 23ABC and upcoming Fort Point Tunnel is given to Interstate 90 motorists. Photo taken 06/27/05.
Traffic splits between Interstate 93 and South Station from the Interstate 90 eastbound mainline. The Fort Point Tunnel portal comes into view finally. All hazardous materials based cargo must utilize Exit 24C onto Interstate 93 southbound. Photo taken 06/27/05.
Beyond the gore point of Exit 24, Interstate 90 enters the Fort Point Tunnel. Still visible are the Interstate 93 ramps to the left. Photo taken 06/27/05.
Now within the Fort Point Tunnel of Interstate 90 eastbound. Exit 25 departs for South Boston as the tunnel exit comes into view. Photo taken by Gary S. Peterson (02/03).
Interstate 90 eastbound at the entrance to the Ted Williams tunnel. The first guide sign of Exit 26 for Logan International Airport comes into view. Photo taken 06/27/05.
Within the Ted Williams Tunnel Interstate 90 prepares to split with Exit 26 for Logan International Airport and transition to Massachusetts 1A north. There is no indication of Interstate 90 ending at this point. Photo taken 06/27/05.
Interstate 90 eastbound at the Logan Airport off-ramp (Exit 26). Like all Logan Airport signs, this sign is gray in color, with colored icons for Terminals A, B, C, D, and E. Straight ahead was the temporary end to Interstate 90, which let travelers off in the middle of the airport requiring them to take surface roads to reach Massachusetts 1A, the McClellan Highway. Photo taken by Mike Tantillo (10/01).
Beyond the north departure of the Ted Williams Tunnel. The Exit 26 ramp to the airport departs the tunnel to the right of the bushes. From there the roadway ascends and loops back over Interstate 90 into Logan International Airport's terminal. Photo taken 06/27/05.
The final Interstate 90 off-ramp departs the freeway three quarters of a mile ahead to Massachusetts 145 (Bennington Street). Massachusetts 145 follows Bennington Street east from Chelsea Street east to Saratoga Street and Winthrop. Photo taken by Gary S. Peterson (02/03).
Interstate 90 westbound passes over the Exit 26 ramp as it loops back to the south for the Logan Airport terminal. Photo taken 06/27/05.
The Logan International Airport exit ramp passes overhead and splits between ramps to Massachusetts 1A south to the Sumner Tunnel and downtown and Massachusetts 1A (William F. McClellan Highway) north to Chelsea and Revere. Photos taken 06/27/05.
The final ramp of Interstate 90 descends from the Massachusetts 1A viaduct onto Bennington Street (Massachusetts 145). Photo taken 06/27/05.
The official end shield for Interstate 90 eastbound is posted at the ramp merge onto Massachusetts 1A northbound. Photo taken by Bob Blackie (07/03).
A second look at the end Interstate 90 sign posted at the merge with Massachusetts 1A. Photo taken 06/27/05.
Massachusetts 1A (William F. McClellan Highway) northbound at the Massachusetts 145 (Bennington Street) off-ramp. Massachusetts 145 loops east to Winthrop before turning back toward Chelsea at Suffolk Downs. Massachusetts 1A follows the Lee Burbank Highway directly into Chelsea. Photo taken 06/27/05.
Perspective from Massachusetts 1A south
Southbound on Massachusetts 1A at the first guide sign for the upcoming Interstate 90 westbound beginning. The Interstate 90 & Massachusetts 1A viaduct carries motorists directly toward Logan International Airport. Truckers carrying Hazardous cargo are not permitted onto Interstate 90 west beyond the Saratoga Street off-ramp due to the upcoming tunnels. Photo taken 06/27/05.
A pair of small guide signs partitions traffic bound for Interstate 93 onto Interstate 90 west for southbound and Massachusetts 1A south for northbound. Photos taken 06/27/05.
A less direct route to Interstate 93 northbound is achieved by taking Interstate 90 west through the Ted Williams Tunnel through to the Exit 24 off-ramp. Massachusetts 1A (Sumner Tunnel) however meets the freeway closer in proximity to the Interstate 90 westbound beginning. Photo taken 06/27/05.
Now three quarters of a mile from the Interstate 90 westbound beginning on Massachusetts 1A southbound. The split with the Saratoga and Bennington Street off-ramp departs ahead of the Massachusetts 1A viaduct. Bennington Street carries Massachusetts 145 east from Chelsea Street to Winthrop. Photo taken 06/27/05.
The Saratoga and Bennington Street off-ramp departs Massachusetts 1A. A viaduct carries drivers over the surface streets ahead of the Interstate 90 westbound split from Massachusetts 1A southbound. Photo taken 06/27/05.
Nearing the Interstate 90 west and Massachusetts 1A southbound split. Massachusetts 1A travels through East Boston to the Sumner Tunnel and Interstate 93 north. The Massachusetts Turnpike begins toward the left as Interstate 90 turns toward Logan International Airport and the Ted Williams Tunnel. Photo taken 06/27/05.
A temporary shield assembly directs travelers onto the westbound beginning of Interstate 90. Road work continued within the median of the Massachusetts 1A roadway. Photo taken 06/27/05.
Massachusetts 1A yields the elevated highway to the westbound beginning of Interstate 90. The state highway meanders through East Boston to the Sumner Tunnel approach. Interests to the Boston Government Center should use Massachusetts 1A south to New Chardon Street in downtown. Photo taken 06/27/05.
Perspective from Interstate 90 west
Interstate 90 westbound prepares to split with the ramp toward Logan International Airport. An elevated system of ramps travels to and from the airport terminal from Interstate 90 and Massachusetts 1A. Travelers not exiting to Logan Airport encounter a toll plaza ahead. Photo taken 06/27/05.
A Logan International Airport overhead advises motorists of the terminal system. Photo taken 06/27/05.
Interstate 90 approaches its first Massachusetts Turnpike toll plaza beyond the Logan Airport off-ramp. All passenger vehicles are charged a $3.00 toll for using the westbound direction through the Ted Williams Tunnel. No toll is levied on eastbound travelers. Photo taken 06/27/05.
The first westbound reassurance marker of Interstate 90 resides at the Ted Williams Tunnel portal. A nearby sign welcomes drivers to Boston and also touts the World Series Championship of 2004. Similar signs are posted on Mass Pike entrances that tout the New England Patriots three Super Bowl victories. Photos taken 06/27/05.
Exits 25 & 24 serve Interstate 93 and South Boston from Interstate 90 (Mass Pike) westbound. Pictured here is the 0.25-mile overhead for the ramp positioned within the Ted Williams underneath Boston Harbor. The tube consists of two lanes with shoulders with lane changes permitted. The underwater portion is narrower, has no shoulders, and does not allow lane changes. Photo taken 06/27/05.
Interstate 90 emerges from the Ted Williams Tunnel ahead of the Exit 25 & 24 ramp split for Interstate 93 (north & south) and South Boston. The Mass Pike travels through the Tip O'Neill Tunnel underneath Fort Point Channel next. Photo taken 06/27/05.
Exits 25 & 24 pass underneath a cut and cover tunnel under D Street before partitioning to Interstate 93 and South Boston. Photo taken 06/27/05.
Exit 25 splits with Exit 24 for B and Congress Streets at South Boston. Photos taken 06/27/05.
Exit 24 continues west parallel to Interstate 90 (Mass Pike) through the Fort Point Channel Tunnel. A series of signs outlines the ramp partition to Interstates 93 north (Downtown Boston) and south (Quincy). The ramp for northbound stays below ground to continue onto Interstate 93 northbound. Photo taken 06/27/05.
The end of Exit 24 at the split to Interstate 93 north and south. The southbound ramp merges onto Interstate 93 from the left-hand side ahead of the off-ramp to the Massachusetts Avenue Connector. Northbound motorists join the freeway ahead of the Callahan Tunnel exit. Photo taken 06/27/05.
Historic Eastern Terminus - Interstate 93 - Boston, Massachusetts
Perspective from Interstate 90 east
Interstate 90 ended at Logan International Airport after passing through Ted Williams Tunnel as part of the Massachusetts Turnpike. This Turnpike Ends one-half mile sign was located before the tunnel: Note also the centerline sign posted for the Haul Road/Ted Williams Tunnel. Photo taken by Dan Moraseski (10/00)
The original slow curve sign posted for the ramps to Interstate 93/U.S. 1/Massachusetts 3. A new curve warning sign is in place with ramp diagrams for Exits 25ABC (see below photographs). Photo taken by Dan Moraseski (10/00).
At the time of this photograph, Interstate 90 ended at Interstate 93. The roadway mainline partitioned into ramps for Interstate 93/Massachusetts 3 north and south and for Downtown Boston/South Station via Atlantic Avenue. These signs are no longer in place and these ramps are now apart of of Exits 25ABC. Photo taken by Dan Moraseski (10/00).
The final set of guide signs for the previous terminus of Interstate 90 at Interstate 93. Note the old style control points of Logan Airport for Interstate 93 north and South Shore for Interstate 93 south. The new control cities are Concord, New Hampshire for northbound and Quincy for southbound (see below photos). Logan Airport traffic interests are now handled directly by Interstate 90 eastbound. The scene overall has undergone a dramatic change. Photo taken by Dan Moraseski (10/00).
This detail of the Interstate 93/Massachusetts 3 northbound panel reveals a state-named based Interstate shield and button copy lettering. Safe to say that this sign is no longer in place. Photo taken by Dan Moraseski (10/00).
Original Fitzgerald Expressway overheads for the Central Artery of Interstate 93 at the historic Interstate 90 eastern terminus. Note that Interstate 93 shields were affixed to the sign bridge posts. Similar style signs were found on the Interstate 76/Schuylkill Expressway in Philadelphia at one time. Photo taken by Dan Moraseski (10/00).
Original gore point sign for the Interstate 93 north and southbound ramp split from Interstate 90 east. Photo taken by Dan Moraseski (10/00).
A detail of the gore point sign reveals another placement of an Interstate 93 Massachusetts shield. This one however, was quite damaged from the harsh weather of Boston. Photo taken by Dan Moraseski (10/00).
Perspective from Interstate 93/U.S. 1/Massachusetts 3 north
The trio of Interstate 93, U.S. 1, and Massachusetts 3 travel together from Quincy northbound into Downtown Boston. With construction associated with the Big Dig in progress, Interstate 93 northbound nears Exit 20/Interstate 90. This was the eastern terminus of the Interstate highway at the time of this photograph. Interstate 90 now travels via the Fort Point and Ted Williams Tunnels to the east. Otherwise Exit 20 serves Chinatown and South Station via a ramp to the surface streets of Lincoln and Kneeland Streets. Photo taken by Douglas Kerr (09/01).
Perspective from Interstate 93/U.S. 1/Massachusetts 3 south
Amid heavy construction, a view of the Exit 20 overhead for Interstate 90 westbound at the ramp departure from Interstate 93/Massachusetts 3 south. The connector to Interstate 90 split with a ramp to nearby Albany Street. The local surface street parallels Interstate 93 to the south of Interstate 90 above ground now. Photo taken by Dan Moraseski (10/00).
Subterranean Interstate 93 southbound on the approach to the Exit 20 off-ramp to Interstate 90 (Massachusetts Turnpike) west. The Massachusetts Turnpike leaves the Big Dig area to Fenway Park and Brookline. Photo taken by 06/28/05.
Exit 20 claims the right-hand lane of Interstate 93 southbound for Interstate 90 (Mass Pike) west. The ramp acts as a collector distributor roadway, merging with the Albany Street southbound on-ramp, and thus providing a de facto fourth southbound lane for Interstate 93. Photo taken 06/28/05.
The Exit 20 c/d roadway partitions into ramps for Interstate 90 west to Worcester and the return to Interstate 93 south to Quincy. Photo taken 06/28/05.
A second split occurs as Exit 20 emerges from the tunnel network with a ramp to Albany Street south. Interstate 90 (Mass Pike) otherwise enters another tunnel west of Interstate 93 en route to the Fenway Park area. Photo taken 06/28/05.
Perspectives from area surface streets
Original freeway sign at what appears to be the Interstate 90 (Massachusetts Turnpike) west and Interstate 93/Massachusetts 3 southbound joint ramp from Kneeland Street at Chinatown. Photo taken by Dan Moraseski (10/00).
The original configuration of the Ted Williams western portal in South Boston. Traffic entered via this intersection from what appears to be Northern Avenue as the Fort Point Tunnel had yet to extend Interstate 90 across the Channel by the same name. The Tunnel was considered part of the MassPike system from its inception (notice the trailblazer to the top right of the entrance overhead). Photo taken by Dan Moraseski (10/00).
Northern Avenue northbound at the Ted Williams Tunnel entrance. Restrictions were placed on the types of vehicular traffic that were allowed to utilize the roadway at this time. Now that the tunnel is part of Interstate 90, all traffic but HAZMAT cargo is allowed to enter. Photo taken by Dan Moraseski (10/00).
Perspectives from Logan International Airport (Pre-Interstate 90 Extension)
The next few photos are taken from Logan International Airport. This is now the last mainline interchange of Interstate 90 (Exit 26). The freeway concludes at Massachusetts 1A.
Entering Logan from Massachusetts 1A, you saw this sign for the Ted Williams Tunnel (then future Interstate 90). The overhead ramps ahead will connect Interstate 90 to/from Logan; only one was open at the time of this photograph (the ramp carried traffic from Logan to the tunnel). Photo taken by Dan Moraseski (02/01).
Another sign for the Ted Williams Tunnel entrance at the same turn. The tunnel originally was restricted to commercial traffic only. Hence the Authorized Vehicles Only placard displayed on this guide sign. Photo taken by Dan Moraseski (02/01).
Looking west towards the airport exit from Central Parking. The curved elevated ramps eventually connected Interstate 90 to/from Logan (Exit 26); Interstate 90 now travels between the ramps in the background. The double decker roadway in the airport was also being extended to connect both levels directly with Interstate 90. Photo taken by Dan Moraseski (02/01).
Standard directional signage at Logan International Airport. Photo taken by Dan Moraseski (02/01).

Page Updated September 24, 2006.


State Washington
Mileage 296.92
Cities Seattle, Bellevue, Ellensburg, Moses Lake, Spokane
Junctions I-5, I-405, I-82
State Idaho
Mileage 73.55
Cities Coeur d'Alene, Kellogg, Wallace
Junctions None
State Montana
Mileage 551.68*
Cities Missoula, Deer Lodge, Butte, Bozeman, Livingston, Laurel, Billings, Hardin
Junctions I-15, I-115, I-15, I-94
State Wyoming
Mileage 208.80
Cities Sheridan, Buffalo, Gillette
Junctions I-25
State South Dakota
Mileage 412.76
Cities Spearfish, Sturgis, Rapid City, Chamberlain, Mitchell, Sioux Falls
Junctions I-190, I-29, I-229
State Minnesota
Mileage 275.70
Cities Worthington, Fairmont, Albert Lea, Austin, Rochester
Junctions I-35
State Wisconsin
Mileage 108.61 (187+)
Cities La Crosse, Onalaska, Tomah, Madison, Beloit
Junctions I-94, I-39, I-94, I-43
State Illinois
Mileage 123.89#
Cities Rockford, Elgin, Chicago
Junctions I-39, I-290, I-294, I-190, I-94, I-290, I-55, I-94
State Indiana
Mileage 156.28**
Cities Hammond, Gary, South Bend, Elkhart
Junctions I-65, I-80, I-94, I-69
State Ohio
Mileage 244.75++
Cities Toledo, Elyria, Cleveland, Ashtabula, Conneaut
Junctions I-475, I-75, I-280, I-80, I-71, I-490, I-77, I-271
State Pennsylvania
Mileage 46.30
Cities Erie
Junctions I-79
State New York
Mileage 385.48
Cities Dunkirk, Buffalo, Batavia, Rochester, Syracuse, Oneida, Utica, Amsterdam, Schenectady, Albany
Junctions I-190, I-290, I-490, I-390, I-490, I-690, I-81, I-481, I-790, I-890, I-88, I-890, I-87, I-787, New York Thruway/ Berkshire Connection
State Massachusetts
Mileage 135.72 (137.6##)
Cities Springfield, Holyoke, Worcester, Framingham, Boston
Junctions I-91, I-391, I-291, I-84, I-290/I-395, I-495, I-95, I-93
TOTAL 3,020.44
NOTE on the total: (This would be approximately 3,100 miles if shared alignment with I-94 in Wisconsin is included.)
Source: December 31, 2016 Interstate Route Log and Finders List
* - 7.65 miles on I-15
+ - approximately 187 miles total, of which 108.61 miles are independent of I-39 and the rest are combined with I-39
# - 15.39 miles on I-94
** - 135.60 miles on I-80
++ - 142.80 miles on I-80
## - Prior to the opening of the Ted Williams Tunnel, Interstate 90 was 135.72 miles long.1
Interstate 90 Annual Average Daily Traffic

State Location AADT Composite Year
Washington Seattle 150,600* 2002
Washington East of Moses Lake 9,200 2002
Washington Spokane 107,000 2002
Idaho Coeur d'Alene 47,000 2002
Idaho Mullan 6,300 2002
Wyoming Parkman 4,380 2002
Wyoming Sheridan 8,750 2002
Wyoming Gillette 9,820 2002
Indiana Gary 44,160 2002
Indiana South Bend 25,600 2002
Pennsylvania Erie 47,000 2002
Pennsylvania State Line 19,000 2002
New York Buffalo 143,300 2002
New York Syracuse 39,200 2002
New York Utica 25,800 2002
New York Albany 120,700 2002
New York Niverville 16,800 2002
Massachusetts West Stockbridge 20,592 2000
Massachusetts Chicopee 53,302 2000
Massachusetts Weston 119,006 2000
Massachusetts Boston 104,507 2000
Source: 2002 Annual Traffic Report (WSDOT)
2002 Rural Traffic Flow Map (ITD)
2002 Wyoming Vehicle Mile Book (WYDOT)
INDOT 2000 Annual Average Daily Traffic Volumes Map
Pennsylvania Traffic Volumes 2002 (Penndot)
NYSDOT 2002 Traffic Volume Report
Mass Highway Traffic Volume Counts (2002)
* - estimate 148,000 mainline and 2,600 reversible lanes
Complete Interstate 90 AADT data.