Please answer a question about the following table 

header: Name | Route number(s) | Length (mi) | Location | Notes row 1 : Alewife Brook Parkway | nan | 2.05 | Cambridge | Runs from Concord Avenue to the Mystic
row 2 : American Legion Highway | * | nan | Westport | Runs through Tiverton, Rhode Island;
row 3 : Amvets Memorial Highway (Fall River | * | 40.91 | Fall River to Randolph | Route 24 is a connector between the Fall River
row 4 : Boston Post Road | nan | nan | Marlborough to Weston | Most of US-20 between Marlborough and West
row 5 : Henry E. Bodurtha Highway | nan | 5.0 | Agawam | Freeway comprises the eastern 5 miles (8.0 km
row 6 : Boston-Worcester Turnpike | nan | nan | Worcester to Boston | Route 9 between Worcester and Boston is mostly a
row 7 : Central Artery (John F. Fitzgerald Expressway | nan | 3.18 | Boston | The Central Artery is the portion of I-
row 8 : Commonwealth Avenue | nan | nan | Newton, Boston | Stretches from Weston/Newton
row 9 : East Boston Expressway | nan | 1.2 | Boston | The East Boston Expressway comprises the first 1.2
row 10 : Grand Army of the Republic Highway | * | 117.46 | Seekonk to Provincetown | The cross-country U.S. Route 6
row 11 : Horseneck Beach Connector | * | 13.03 | Westport | Route 88 serves as a connector running from
row 12 : Loop Connector | * | 3.56 | Methuen | Route 213 is designated Loop Connector. It
row 13 : Lydia Taft Highway | * | 3.0 | Uxbridge | Route 146A in Massachusetts is designated as the
row 14 : Massachusetts Turnpike | * | 138.1 | West Stockbridge to Boston | The Mass Pike is a toll road
row 15 : Memorial Drive | nan | 4.12 | Cambridge | U.S. Route 3 and MA Route 3
row 16 : Mid-Cape Highway | nan | 36.6 | Bourne to Orleans | The Mid-Cape Highway is the main highway
row 17 : Mohawk Trail | nan | 65.0 | Williamstown to Orange | The 65-mile (105 km) Mohawk
row 18 : Mystic Valley Parkway | nan | nan | Arlington, Medford, Winchester | Runs from the Alewife Brook Parkway to
row 19 : Northeast Expressway | * | 4.1 | Boston, Chelsea, Revere | This section of U.S. Route 1 runs
row 20 : Northwest Expressway | nan | 21.1 | Burlington to Tyngsborough | The Northwest Expressway serves as a freeway
row 21 : Pilgrims Highway | nan | 42.5 | Bourne to Braintree | The Pilgrims Highway is the southern portion
row 22 : Southeast Expressway | nan | nan | Braintree to Boston | The Southeast Expressway is the section of I-
row 23 : Southern Artery | nan | 2.13 | Quincy | The Southern Artery is a major arterial in
row 24 : Taunton-New Bedford Expressway (Al | nan | 19.3 | New Bedford to Taunton | The New Bedford Expressway comprises the southern 19 miles
row 25 : Ted Williams Highway | nan | nan | Framingham | Route 9 in Framingham is named the Ted
row 26 : Wilbur Cross Highway | * | 8.0 | Sturbridge | I-84 in Massachusetts is designated the Wilbur
row 27 : Worcester-Providence Turnpike | * | 20.99 | Millville to Worcester | Route 146 is a freeway that,
row 28 : Yankee Division Highway (Circumferential | * | 64.74 | Braintree to Gloucester | The Yankee Division Highway consists of the Route 1

what are the lengths of the listed numbered routes in massachusetts? which is the longest of these measurements?

Answer: 138.1