Directions to Two Constitution Wharf

The Dr. Charles and Ann Sanders IMPACT Practice Center is in Two Constitution Wharf (2CW), formerly referred to as 2 Constitution Center (2CC).
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Directions if arriving by:

Photo of the Zakim Bridge approach to Charlestown

Arriving by Car

Please note that due to the street numbering used around the Charlestown Navy Yard, Mapquest, Google Maps and other online map services and GPS will lead you astray unless you use as your search term: 2 Constitution Plaza, Charlestown, MA 02129.

From the North via I-93: Take exit 28 "Boston/Sullivan Square/Charlestown" to Maffa Way. Take a slight right onto Rutherford Avenue. Get in the left hand lane and turn left onto Chelsea Street then take the first right onto Warren Street, and then left on Constitution Road. The Center is on the right about two blocks down, just before the Gate One entrance to the Boston Navy Yard.

From the North via Route 1 South: Follow Route 1S over Tobin Bridge ($3 toll). Take "Charlestown/Somerville" exit. At first light, turn right onto Rutherford Avenue and bear immediately into the left-turn lane. At the light, turn left onto Chelsea Street then take the first right onto Warren Street, then left on Constitution Road.

From the South via I-93: Take the Government Center exit, Exit 23. Stay in the right-hand lane. Bear right as you exit the tunnel.  At set of lights take a left onto Cross Street.  Turn slightly right onto Joe Tecce Way/North Washington Street. Go through two sets of lights.  Go over the bridge.  North Washington Street turns into Rutherford Street/MA-99. At the end of bridge turn right onto Chelsea Street then take the first right onto Warren Street, then turn left onto Constitution Road.

Alternately, drivers wishing to avoid TD Garden (formerly the Fleet Center) event congestion, should stay on I-93 and pass over the Zakim Bridge to Exit 28, "Sullivan Square". At the end of the off ramp, head toward the Schrafft's building into the rotary, turn onto Bunker Hill Street and take it all the way to Chelsea Street. Turn right onto Chelsea Street and take the third left onto Warren Street, then left onto Constitution Road.

From the West: Take the Massachusetts Turnpike (I-90) to I-93 North. Follow directions for "From the South via I-93," above.

Directions to Parking at 2CW:

If you are going to 2CW as a guest or visitor, there is a parking lot adjacent to it, straight ahead as you turn down Warren Street. However, parking during the day there is very limited. Also there is parking at the Nautica Garage across the street from 2CW, on Constitution Road.

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Photo of the MBTA Orange Line

Arriving by Subway/Commuter Rail 

Take the commuter rail or either the Green or Orange subway line to North Station. Visit the official MBTA website for detailed transit information. If you are commuting by subway/commuter rail you should consider getting one of the real-time apps that track real-time schedules and disruptions.

From North station, take the Partners shuttle, a Blue Bike, or walk to our campus.

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Photo of Bus #93

Arriving by Public Bus #93

MBTA Bus #93 (Sullivan Square) From Downtown Crossing or Haymarket. This bus stops at the corner of Warren and Chelsea Streets for convenient access to 2CW.  It also stops at 5th and Chelsea Streets for a short two-block walk to the Shouse Building. See the MBTA Schedule.


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Photo of Partners Shuttle at stop in Charlestown Navy Yard

Arriving by Partners Shuttles

The Partners Shuttles are free for anyone to use. A shuttle goes between Mass General Hospital (MGH) and Charlestown Navy Yard (CNY), with stops at North Station.  A second shuttle goes directly from North Station to the Navy Yard. Take the Gate 1 stop and turn right for 2CW.

Partners Shuttle Schedules 
Shuttles run from 5:30 a.m. to 1:15 a.m. on weekdays, less frequently on weekends, and do not run on some holidays. See specifics at the linked page for Partners Shuttle Schedules. On the Shuttle Schedule page, choose Massachusetts General Hospital.

From Massachusetts General Hospital (Mass Gen)
Take any Partners shuttle displaying an "MGH/CNY" placard, which departs Mass Gen from the shuttle stop located between the Jackson Building doors and the Blossom Street loading dock (after 6:00 p.m., it moves to Gray Building doors).


  • Monday through Friday: Every 15 minutes 5:30 a.m. - 7:45 p.m.; every half hour 8:00 p.m.- 1:30 a.m.
  • Weekends: Every half hour 9:00 a.m. - 5:45 p.m.

From MGH the shuttle stops at North Station on Haverhill Street near the corner of Causeway Street on its way to the Navy Yard. The Spaulding Express picks up at the same location. 

Walking Directions from MGH/North Station/Charlestown Shuttle Stops to 2CW:

  • For 1CW and 2CW get off at the first shuttle stop after North Station, at "Gate 1" on Chelsea Street on the corner of Warren Avenue. The shuttle driver announces this as 1CC. (The shuttle does not stop here on weekends.) When you leave the shuttle down Warren Avenue toward the harbor, turn left on Constitution Road, cross the street, continue  1 block to the red metal gates with a sign for 2CW. Turn right onto the asphalt path and follow it around right to the entrance to 2CW. 1CW is across the parking lot from 2CW.
  • The Partners Shuttle for 1CW and 2CW: last shuttle Monday–Friday is 6:45 p.m.  There is no weekend shuttle service to 1CW/2CW.

The Partners shuttles are free to all riders.

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Photo of the Inner Harbor Ferry to Charlestown Navy Yard

Arriving by Inner Harbor Ferry (from Long Wharf)

The Navy Yard can be reached from Long Wharf, (Aquarium stop on the Blue line) via the Inner Harbor Ferry, Route F4. Long Wharf is within walking distance of South Station (Red line) and State Street (Orange, Blue lines). PDF of F4 Schedule.

The ferry drops passengers off at the end of Baxter Road on Pier 3. Walk up Pier 3 to First Avenue. Turn left onto First Avenue, walk through the active Navy Yard to Constitution Road. The entrance for 1CW and 2CW is 1 block up Constitution Road on the left, through red metal gates with a sign for 2CW.

The Inner Harbor ferry operates Monday through Friday, with more limited weekend service.

Cost: Inner Harbor Ferry is $3.50 for adults, one way. Fare for Seniors and people with disabilities (with Charlie Transport Access Pass (TAP) Card) is half fare each way. See details of Reduced Fare programs.

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Photo of bike on Pier 4

Arriving by Bicycle

There is a Blue Bikes station in front of North Station, one near Building 2CW, at the corner of Warren Street and Constitution Road, and another by Spaulding Rehabilitation Hospital at the end of 1st Avenue. Bikes can be taken out of one station and brought to another. View a map of other Bue Bike stations in the greater Boston area.

The Charles River Locks and the Charlestown/North Washington Street Bridge make North Station easily accessible to bikers. The newly opened North Bank Pedestrian Bridge provides bikers with a convenient path to Blue Bikes stations at the Lechmere MBTA station (Green line and buses), and 1 Kendall Square (convenient for the Red line) in Cambridge. Bicycle racks are located at Shouse (Building 36), Building 39, and Building 2CW. It is suggested you use U-bar or chain locks instead of cable locks.

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Photo of pedestrian walk over the Charles River Locks





Directions from the Shouse Building to One Constitution Wharf (1CW) and Two Constitution Wharf (2CW)

  • Continue down First Avenue for 3 blocks – through the entrance to the active Navy Yard, across the Yard, through "Gate 1" and onto Constitution Road.
  • Continue on Constitution Road 1 block, and take a left through red metal gates at the sign for 2CW with the Institute's logo and an arrow.
  • Follow the asphalt path to the building, around to the right to the 2CW entrance. 
  • 1CW is across the parking lot from 2CW.

Directions from North Station to One Constitution Wharf (1CW) and Two Constitution Wharf (2CW)

The Charles River Locks and the Charlestown/North Washington Street Bridge make North Station easily accessible to Charlestown pedestrians. These provide 15 to 20 minute scenic walks along the harbor front. 

Directions from Cambridge/Lechmere Area to One Constitution Wharf (1CW) and Two Constitution Wharf (2CW)

The North Bank Pedestrian Bridge provides pedestrians with a convenient path to Cambridge and public buses 69, 80, 87 and 88 at Lechmere Station.

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