Longest Bridges in Massachusetts

The longest bridge in Massachusetts spans 5779.9 feet. The table below ranks the state's bridges by total structure length — from major river crossings and causeway spans to long highway overpasses.

How this ranking works

Length comes from the NBI structure length field and is shown in feet. It is best read as a scale and maintenance-complexity signal, not by itself as a safety signal.

Bridge	County	Length	Condition	Year Built
I 195 over Comb St79 & Taunton Riv	Bristol	5779.9 ft	Fair	1965
US 1 Sb/uppr Deck over US 1 Nb/chel Lwr Deck	Suffolk	3349.1 ft	Poor	1950
I 91 & Rmps L & M over I 291 & City Sts	Hampden	3196.9 ft	Fair	1971
US 1 Nb/low Deck over HWY Chelsea Local Stre	Suffolk	2829.1 ft	Poor	1950
I 391 & Ramps Abcd over Comb Main ST & Pvrr	Hampden	2559.4 ft	Fair	1980
I 90 WB over Rr Mbta	Suffolk	2485.9 ft	Poor	1965
I 90 EB over Rr Mbta	Suffolk	2483.9 ft	Poor	1965
Ma Route 28 over Cape Cod Canal	Barnstable	2383.9 ft	Poor	1935
I 93 over ST 28 & St38 & Temple ST	Middlesex	2352.0 ft	Fair	1973
HWY So Sta Conn over I 93 Ramps Cc Kk D	Suffolk	2332.7 ft	Good	2004
I 391 over Comb Chic R/sts & Rlf	Hampden	2265.1 ft	Fair	1981
ST 1 A/cabot ST over Water Danvers River	Essex	2232.9 ft	Fair	1996
HWY Powder Pt Av over Water Duxbury Bay	Plymouth	2206.0 ft	Poor	1987
ST 2 A/mass AVE over Comb Strw DR & Chas Riv	Suffolk	2171.3 ft	Fair	1891
ST 3 Cambridge ST over Comb St3/st28 & Charles	Suffolk	2134.8 ft	Fair	1905
US 1 Sb/bs U11-32 over US 1 Nb/bos Lowr B11-32	Suffolk	2072.2 ft	Fair	1950
I 91 over HWY City Sts&garage	Hampden	1964.6 ft	Fair	1971
US 1 Nb/ Lo Deck over HWY Chrltwn Local Sts	Suffolk	1892.1 ft	Fair	1950
HWY Trm B Dep RD over HWY Logan Trm B Arr RD	Suffolk	1870.4 ft	Fair	1979
HWY Austin ST over Comb I 93 Rmp&mbta&orng	Suffolk	1825.1 ft	Fair	1974
HWY S Bos Bypass over Comb Amtrak/mbta&red LN	Suffolk	1822.5 ft	Good	1995
HWY Avenue A over Water Conn Riv And Canal	Franklin	1732.9 ft	Fair	1937
US 6 / ST 138 over Comb ST 79 Taunton Rive	Bristol	1728.0 ft	Good	2011
St116 Bridge ST over Comb Conn River & Pvrr	Hampden	1629.3 ft	Good	1990
I 93 Off Ramp over I 93 & NB On Ramp	Middlesex	1603.7 ft	Fair	2000
I 290 EB over Comb 4 City Sts & Csx	Worcester	1555.1 ft	Fair	1958
I 290 WB over Comb 4 City Sts & Csx	Worcester	1555.1 ft	Fair	1958
St147 Memorial AVE over Comb Amtrak & Conn Riv	Hampden	1545.9 ft	Fair	1922
I 93 /us1/st3 over Comb Mbta & Columbia RD	Suffolk	1530.8 ft	Fair	1958
US 1 Nb/lowr Deck over Water Mystic River	Suffolk	1524.0 ft	Fair	1950
US 1 Sb/b Mystc U over US 1 Nb/big Mystic Lowr	Suffolk	1524.0 ft	Fair	1950
I 291 Line K over I 91	Hampden	1523.0 ft	Fair	1969
I 91 over Comb Sts/csx/gwrr/garag	Hampden	1512.1 ft	Fair	1971
HWY Quincy Shore over ST 3 A/hnck Nb&mbta&red	Suffolk	1502.6 ft	Fair	1970
HWY Amesbury ST over Comb Merimac Riv/access	Essex	1497.0 ft	Fair	1918
I 90 over Comb Csx/us20/westfld R	Hampden	1470.1 ft	Fair	1957
US 5 (s End Br) over Comb Amtrak & Conn Riv	Hampden	1459.0 ft	Fair	1954
I 93 & Rmp Sa-cn over Water Charles Riv/ramps	Suffolk	1457.3 ft	Fair	2002
ST 9 Russell ST over Water Connecticut River	Hampshire	1440.9 ft	Fair	1937
Us202 over Water Connecticut River	Hampden	1437.3 ft	Fair	1958
Ma Route 3 over Cape Cod Canal	Barnstable	1407.8 ft	Fair	1935
ST 3 A over Water Fore River	Norfolk	1406.8 ft	Fair	2018
I 90 over Water Connecticut River	Hampden	1404.9 ft	Fair	1957
I 91 over Comb Ct R/gwrr & St116	Hampden	1300.9 ft	Fair	1966
I 95 NB over Water Merrimack River	Essex	1299.9 ft	Good	2015
I 95 SB over Water Merrimack River	Essex	1299.9 ft	Good	2017
ST 1 A/lynnway over Water Saugus River	Essex	1272.0 ft	Poor	1934
I 291 Line N over HWY Main ST & Others	Hampden	1271.7 ft	Fair	1969
US 1 SB Bts 36/pr over HWY Arlington & 5th ST	Suffolk	1253.0 ft	Fair	1957
I 93 NB B16-nb4 over I 93 Sb&cmbrg&mbta/bmrr	Suffolk	1232.9 ft	Fair	1970
HWY Frontage RD over Comb I90 Rps&hov&amtk	Suffolk	1232.6 ft	Good	2002
US 1 Bridge RD over Water Merrimack River	Essex	1223.1 ft	Poor	1976
I 93 SB B16-sb4 over Comb Cambrige&mbta/bmrr	Suffolk	1213.9 ft	Fair	1970
I 90 EB Ramp On D over I 90	Suffolk	1199.1 ft	Fair	1964
I 93 /us1/st3 over HWY Nep Av/galv/mrsy	Suffolk	1196.9 ft	Fair	1955
US 20 Park AVE over Water Connecticut River	Hampden	1185.4 ft	Fair	1924
I 93 NB On Ramp over I 93	Middlesex	1183.7 ft	Fair	2000
St116 Sunderland R over Water Connecticut River	Franklin	1174.9 ft	Fair	1937
HWY Wood ST Ext over Comb Bmrr & Merrimack R	Middlesex	1112.9 ft	Fair	1983
HWY Meridian ST over Water Chelsea River	Suffolk	1075.1 ft	Poor	1954
US 1 Nb/lowr Deck over Other Relief	Suffolk	1071.9 ft	Fair	1950
US 1 Sb/toll Uppr over US 1 Nb/toll Plaza Lowr	Suffolk	1071.9 ft	Fair	1950
I 495 Upper Level over I 495 Lower Level	Essex	1048.9 ft	Poor	1962
I 90 over Comb I 95 & Charles Riv	Middlesex	1037.1 ft	Fair	1964
I 93 SB over HWY Albany ST	Suffolk	1033.1 ft	Fair	1997
HWY Ramp X/xx over HWY Albany ST	Suffolk	1032.8 ft	Fair	2003
I 93 NB over HWY Frontage RD NB	Suffolk	1032.8 ft	Fair	2002
I 93 Ramp Sacn over Comb Us1 Rmp Lt Lc&orng	Suffolk	1029.2 ft	Good	2005
ST 88 over Water Westport River	Bristol	1024.9 ft	Fair	1958
US 20 WB over Comb St146&pwrr&blkstn	Worcester	1022.6 ft	Fair	2005
ST 3 A/morrsy Blv over Comb Neponset Ave&river	Suffolk	1018.0 ft	Fair	1970
US 20 EB over Comb St146&pwrr&blkstn	Worcester	1016.1 ft	Fair	2005
I 93 NB over I 93 Sb/rmp Lt/mil Rv	Suffolk	1015.1 ft	Fair	2002
US 1 NE Xway over HWY Orange & Carter ST	Suffolk	1014.1 ft	Good	1956
I 495 & Access Rps over Water Merrimack River	Essex	966.9 ft	Poor	1962
I 495 NB over Water Merrimack River	Essex	946.2 ft	Poor	1964
I 391 over Water Connecticut River	Hampden	944.2 ft	Fair	1979
I 495 SB over Water Merrimack River	Essex	938.3 ft	Poor	1964
HWY Summer ST over Water Reserve Channel	Suffolk	932.1 ft	Fair	1892
I 90 EB Off- Ramp over I 90 WB & Ramps F D L	Suffolk	916.0 ft	Poor	1964
I 93 Ramp Ns over Rr Mbta	Suffolk	900.6 ft	Fair	1999
I 93 NB over I 93 SB Bt 46 - 57	Suffolk	898.0 ft	Fair	1970
I 93 SB Bt 46-57 over Tr Orange Line	Suffolk	898.0 ft	Fair	1970
ST 9 Belmont ST E over Water Lake Quinsigamond	Worcester	882.9 ft	Good	2016
HWY Memorl DR EB over Water Charles River	Middlesex	878.0 ft	Fair	1956
US 1 Nb/s Abt Pr1 over HWY Arlington & 5th ST	Suffolk	874.0 ft	Good	1957
I 291 over Comb Chicpe Riv & St141	Hampden	871.1 ft	Fair	1954
ST 9 Belmont ST W over Water Lake Quinsigamond	Worcester	869.8 ft	Good	2015
ST 2 Mohawk Trail over Comb River Rd&conn Riv	Franklin	866.1 ft	Fair	1931
HWY Seaport BLVD over Water Fort Point Channel	Suffolk	865.8 ft	Fair	1996
I 93 Ramp Sn over Comb Mbta & Orange Line	Suffolk	862.9 ft	Good	1999
St128 over Water Annisquam River	Essex	861.9 ft	Fair	1950
I 290 EB over Comb Sthbrg ST & Mdl R	Worcester	861.9 ft	Fair	1966
I 290 WB over Comb Sthbrg ST & Mdl R	Worcester	861.9 ft	Fair	1966
HWY Upr Cnty Bri over Water Merrimack River	Essex	857.9 ft	Good	1906
I 93 Ramps Sn Ns over Rr Bmrr Bsg Spur	Suffolk	853.0 ft	Fair	1999
I 93 Ramps Sn Ns over Rr Bmrr Bsg Spur	Suffolk	853.0 ft	Fair	1999
I 391 over St116 Chicopee ST	Hampden	848.1 ft	Poor	1979
I 290 EB over Comb Lk Quinsig&lk Av N	Worcester	845.1 ft	Fair	1968
I 290 WB over Comb Lk Quinsig&lk Av N	Worcester	845.1 ft	Fair	1969
I 90 over Comb Chicopee River/may	Hampden	842.8 ft	Fair	1957
I 93 SB over Comb Millers River/ Oth	Suffolk	834.0 ft	Fair	2002
I 190 SB over Water Quinapoxet River	Worcester	834.0 ft	Fair	1979
I 190 NB over Water Quinapoxet River	Worcester	834.0 ft	Fair	1979
I 93 Strrw DR Con over Water Charles River	Suffolk	830.1 ft	Fair	1999
ST 99 Alford ST over Water Mystic River	Suffolk	825.1 ft	Fair	1963
US 1 Ramp Ct over Comb Mbta & Millers Riv	Suffolk	823.2 ft	Fair	2001
ST 8 State ST over Comb Hoosic Riv & Parr	Berkshire	815.3 ft	Good	1941
HWY Bowker Int over ST 2 Comm Av Beacon ST	Suffolk	813.6 ft	Fair	1965
HWY East Main ST over Water Merrimack River	Essex	812.0 ft	Fair	1883
ST 1 A over HWY Saratga ST & U Trn	Suffolk	811.0 ft	Fair	1951
US 1 over HWY Spruce ST	Suffolk	808.1 ft	Good	1957
St125 Bridge ST over Water Merrimack River	Essex	804.1 ft	Poor	1925
ST 3 Ramp Xx over HWY Centre ST	Norfolk	803.8 ft	Good	2009
St116 St141/cabot over Comb Conn Riv & Pvrr	Hampden	799.5 ft	Fair	1891
I 93 Ramp Sn over US 1 Ramp Tc & Lc	Suffolk	782.8 ft	Good	1999
I 93 Ramp Ts over US 1 Ramp Lc	Middlesex	779.9 ft	Fair	2002
HWY Aiken ST over Water Merrimack River	Middlesex	779.9 ft	Fair	1883
HWY Ramp K over Other Relief	Suffolk	777.2 ft	Good	2002
ST 97 /st113/lncln over Water Merrimack River	Essex	775.6 ft	Fair	2013
I 93 over Water Merrimack River	Essex	774.9 ft	Poor	1959
I 90 WB over Comb Wash Rd&csx&riv	Hampden	774.9 ft	Fair	1957
ST 28 Sb/mcgrath over HWY Medford ST	Middlesex	774.0 ft	Fair	1951
I 93 Ramp Ns over US 1 Ramp Tc & Lc	Suffolk	774.0 ft	Fair	1999
I 90 EB over Comb Wash Rd&csx&riv	Hampden	771.7 ft	Fair	1957
HWY Mtgue Cty RD over Water Connecticut River	Franklin	771.3 ft	Fair	1947
I 190 NB over ST 12 NB & Ramp B	Worcester	770.0 ft	Fair	1977
I 190 SB over ST 12 NB & Ramp B	Worcester	770.0 ft	Fair	1977
HWY Kernwood AVE over Water Danvers River	Essex	754.9 ft	Poor	1907
HWY Broadway over Comb Mbta/st & Ft Pt C	Suffolk	754.6 ft	Fair	1996
HWY Ramp K over Other Relief	Suffolk	744.4 ft	Good	2002
I 290 Ramp A over I 290 /millbrook/ramp C	Worcester	741.1 ft	Fair	1962
US 1 Ramp Lc over Comb Us1sb/nb&millers R	Suffolk	734.6 ft	Fair	1989
HWY Viaduct ST over Comb Cngrss&haul Rd&csx	Suffolk	732.6 ft	Good	2002
I 91 SB over Comb Stlwtr RD & Drfld	Franklin	726.0 ft	Good	2015
I 91 NB over Comb Stlwtr RD & Drfld	Franklin	726.0 ft	Good	2014
ST 2 Brookline ST over Comb Sol Fld RD & Riv	Suffolk	724.1 ft	Fair	1928
I 495 NB Off Ramp over I 495 & Ramp B	Middlesex	722.1 ft	Fair	2000
I 495 NB over Water Merrimack River	Essex	721.8 ft	Good	2021
I 495 SB over Water Merrimack River	Essex	721.8 ft	Good	2022
ST 28 Fellsway over Water Mystic River	Middlesex	720.1 ft	Fair	1935
HWY Summer ST over Comb I90 Rps& Haul &csx	Suffolk	715.9 ft	Good	2002
I 93 SB over Comb Ramp Lt& Millers R	Suffolk	714.6 ft	Fair	2002
I 93 Ramp K over HWY W Fourth ST	Suffolk	711.6 ft	Fair	2002
ST 1 A over HWY Bningtn & Neptune	Suffolk	710.0 ft	Fair	1951
US 1 SB over US 1 NB	Suffolk	710.0 ft	Poor	1994
ST 10 Bernardston over Water Connecticut River	Franklin	705.7 ft	Fair	1969
I 93 Ramp Xx over HWY Hov EB	Suffolk	701.1 ft	Fair	2001
I 93 NB Ramp C-l over Other Relief	Suffolk	700.5 ft	Fair	1999
US 1 Ramp S-tb over Comb Rmp Ns Ct Tl&mbta	Suffolk	696.9 ft	Fair	2001
ST 1 A/sb over Other Relief & Ped Walkw	Suffolk	693.9 ft	Fair	1951
HWY Ramp G over Comb Central ST & Macrr	Bristol	690.0 ft	Good	2016
US 1 Ramp Ct over Comb I93 SB &rmps& Mbta	Suffolk	688.3 ft	Fair	2001
I 195 EB Ramp F over Comb Weld ST & Relief	Bristol	686.4 ft	Poor	1965
US 6 (east Brg) over Water Acushnet River	Bristol	675.9 ft	Fair	1901
St146 SB over Water Blackstone River	Worcester	670.6 ft	Fair	1997
St146 NB over Water Blackstone River	Worcester	670.6 ft	Good	1997
I 93 NB over HWY Broadway	Suffolk	666.7 ft	Fair	2002
I 93 Ramp S-n over Rr Mbta	Suffolk	666.0 ft	Good	1999
HWY Storrw DR EB over HWY Bowkr On & Off Rps	Suffolk	660.1 ft	Poor	1954
HWY John T Centr over Comb Bmrr & N Nashua Ri	Worcester	657.2 ft	Fair	2002
HWY Ramp C over I 195	Bristol	656.8 ft	Good	2016
I 93 NB over Comb I90 Rps&hov&amtk	Suffolk	656.8 ft	Fair	2002
HWY Ramp 1a/d over HWY Ramp 1a-a	Suffolk	656.5 ft	Fair	2001
HWY Frnt RD SB over Other Relief	Suffolk	652.6 ft	Fair	1997
I 93 NB Bt 38-46 over I 93 SB Bt 38-46	Suffolk	651.9 ft	Fair	1970
I 93 SB Bt 38-46 over Tr Orange Line	Suffolk	651.9 ft	Fair	1970
ST 28 Mcgrath over HWY Washington ST	Middlesex	649.9 ft	Fair	1951
HWY Mccracken RD over Comb St146&pwrr&blkstn	Worcester	640.1 ft	Good	1998
ST 3 Ramp X @ T over HWY Ramps C & Cc	Norfolk	638.1 ft	Fair	1981
HWY St138 W Frex over Comb Macrr/quechan Rive	Bristol	635.2 ft	Good	1905
I 93 SB over Comb I90 & Amtrak	Suffolk	633.9 ft	Fair	2000
ST 28 Main ST over Water Bass River	Barnstable	627.0 ft	Poor	1935
I 93 Ramp Xx over HWY W Fourth ST	Suffolk	620.4 ft	Fair	2002
I 93 NB over HWY W Fourth ST	Suffolk	618.8 ft	Fair	2002
HWY Union ST over Water Merrimack River	Essex	609.9 ft	Fair	1888
St146 NB Off Ramp over Water Blackstone River	Worcester	608.6 ft	Fair	1997
US 3 Memorial DR over HWY Brookline ST	Middlesex	600.1 ft	Poor	1940
I 93 NB Ramp Cl over Other Relief	Suffolk	598.1 ft	Fair	1999
US 6 NW Ramp over ST 79	Bristol	597.1 ft	Fair	2011
ST 28 Broadway over Water Merrimack River	Essex	597.1 ft	Fair	1935
I 90 Ramps over Comb I 95 & Charles Riv	Middlesex	594.8 ft	Fair	1957
I 93 Ramp N-s over Comb Mgh Pkng & Mbta	Suffolk	592.8 ft	Good	1999
St113 /st3a/kendll over Water Merrimack River	Middlesex	590.6 ft	Fair	1930
ST 2 over Comb St112 & Deerfld R	Franklin	589.9 ft	Fair	1954
ST 2 over Comb St2a &mllrs R & RD	Franklin	589.6 ft	Fair	1958
US 6 (west Brg) over Comb Acus Riv/loc St/rr	Bristol	585.0 ft	Fair	1901
US 5 over Water Westfield River	Hampden	584.3 ft	Poor	1953
US 1 Ramp S-tb over Other Relief	Suffolk	582.0 ft	Good	2001
I 93 SB Off Ramp over I 93 Connectors	Middlesex	578.1 ft	Fair	1973
I 495 NB On Ramp over I 495 & Ramp D	Middlesex	577.1 ft	Fair	2000
St140 W Central ST over Comb Mbta & Mine Brook	Norfolk	575.1 ft	Fair	2006
I 93 Ramp Cc & Fx over Comb I90& Rp Kk &amtrk	Suffolk	571.9 ft	Fair	2003
US 1 Newbrprt Tpk over Rr Mbta	Essex	570.9 ft	Fair	1998
ST 2 over Water Deerfield River	Franklin	570.9 ft	Fair	1954
Other Removed over HWY Logan Trm B Ariv E	Suffolk	570.2 ft	Fair	1979
HWY Milliken Blv over Comb I 195 & Ramps	Bristol	565.9 ft	Fair	1961
I 93 Ramp X over HWY W Fourth ST	Suffolk	565.0 ft	Fair	2004
ST 2 Vtrns Mem DR over Comb St8 & Hoosic Riv	Berkshire	562.0 ft	Poor	1959
US 1 Ramp Tc over Other Relief	Suffolk	562.0 ft	Good	2002