Longest Bridges in the United States

The longest bridge in the United States is the Cswy Bridge N. B. over Lake Pontchartrain in LA, at 24.1 miles (127,269 ft) of total structure length. The bridges below are ranked by total structure length from the National Bridge Inventory — the longest spans in America, from the Lake Pontchartrain Causeway to the nation's great river and bay crossings.

BridgeStateLengthYear BuiltDaily Traffic
Cswy Bridge N. B. over Lake PontchartrainLA127,269 ft (24.1 mi)196518,830
Causeway SB over Lake PontchartrainLA127,200 ft (24.1 mi)195618,830
I0055 over I-10 & US 51 & SwampLA76,713 ft (14.5 mi)197524,000
I0055 over US 51 & SwampLA75,831 ft (14.4 mi)197524,000
I0010 over Bonnet Carre SpillwayLA50,813 ft (9.6 mi)197232,050
I0010 over Bonnet Carre SpillwayLA50,771 ft (9.6 mi)197248,723
I0055 over Elevated RdwyLA42,125 ft (8.0 mi)197939,850
I0055 over Manchac Int/service RDLA42,125 ft (8.0 mi)197917,665
I0010 over La975 E Floodway La3000LA41,996 ft (8.0 mi)197221,450
I0010 over East FloodwayLA41,996 ft (8.0 mi)19721,585
I-10 EB over Mobile Bay * US 90AL39,728 ft (7.5 mi)197832,384
I-10 WB over M. Bay 90 98 I10wb RampAL39,723 ft (7.5 mi)197832,387
State Route 92 over San Francisco BayCA36,068 ft (6.8 mi)1967120,000
US 1 (sr 5) over Moser ChannelFL35,867 ft (6.8 mi)198211,300
I-65 NB over Mobile River DeltaAL32,105 ft (6.1 mi)198012,571
I-65 SB over Mobile River DeltaAL32,098 ft (6.1 mi)198012,571
Us0090 over Drain Canals La.20 RrLA29,543 ft (5.6 mi)19954,014
Us0090 over Drainage Canals La.20 RrLA29,543 ft (5.6 mi)19953,007
I0010 over Lake PonchartrainLA29,202 ft (5.5 mi)20111,600
I0010 over Lake PonchartrainLA29,187 ft (5.5 mi)201187,741
La3235 over WetlandsLA29,040 ft (5.5 mi)20123,305
Us0090-b over Harvey Canal/sts/rrLA29,032 ft (5.5 mi)1987101,282
Us0090-b over Harvey Canal/sts/rrLA29,030 ft (5.5 mi)198767,143
Us64 Us264byp over Croatan SoundNC27,580 ft (5.2 mi)20026,900
I0310 over US 61/rr/swamp/la 626LA25,754 ft (4.9 mi)199220,850
I0310 over US 61/rr/swamp/la 626LA25,671 ft (4.9 mi)199220,850
Us0011 over Lake PontchartrainLA24,921 ft (4.7 mi)19383,912
I-165 NB over Multiple Streets StreamsAL24,513 ft (4.6 mi)199421,946
Route 13 Sbl over Ches. Bay - Trestle CVA24,335 ft (4.6 mi)19985,424
I-165 SB over Multiple Streets StreamsAL24,333 ft (4.6 mi)199421,946
Route 13 Nbl over Ches. Bay - Trestle CVA24,110 ft (4.6 mi)19645,424
I0010 over W Atchafalaya FloodwayLA23,439 ft (4.4 mi)197137,370
I0010 over W Atchafalaya FloodwayLA23,439 ft (4.4 mi)19711,585
US 17 over James RiverVA23,200 ft (4.4 mi)198034,140
RTE 10 & Ramps over RTE 110 & 29 StreetsCA21,917 ft (4.2 mi)1959287,000
I-275 (sr 93) over Tampa BayFL21,876 ft (4.1 mi)198665,215
Interstate 280 over Caltrain Up Rr City StsCA21,587 ft (4.1 mi)1965107,000
I0010 over E Atchafalaya FloodwayLA21,584 ft (4.1 mi)197242,449
I0010 over E Atchafalaya FloodwayLA21,584 ft (4.1 mi)19721,585
Sr300 over ST George SoundFL21,541 ft (4.1 mi)20035,700
Interstate 580 over San Pablo BayCA21,345 ft (4.0 mi)195678,000
US RTE 50 EB over Chesapeake BayMD21,289 ft (4.0 mi)195138,923
US RTE 50 WB over Chesapeake BayMD21,050 ft (4.0 mi)197339,114
I 10 over Pascagoula RiverMS20,929 ft (4.0 mi)197629,000
I 10 over Pascagoula RiverMS20,929 ft (4.0 mi)197629,000
Ih35e Ih635 N E Dc over Joes Crk W NW HWY EtcTX20,571 ft (3.9 mi)201445,000
E1530 over CreekOK20,000 ft (3.8 mi)2023100
Route 13 Sbl over Ches. Bay - Trestle BVA19,997 ft (3.8 mi)19985,424
Route 13 Nbl over Ches. Bay - Trestle BVA19,797 ft (3.7 mi)19645,424
I0010 over City StreetsLA19,771 ft (3.7 mi)19691,600
Sr293 over Choctawhatchee BayFL19,265 ft (3.6 mi)199322,500
I-75 over Straits Of MackinacMI19,247 ft (3.6 mi)195711,926
Us0190 over Morganza FldwyLA18,777 ft (3.6 mi)194512,942
I0010 over Reserve Relief CanalLA18,730 ft (3.5 mi)197444,074
I0010 over Reserve Relief CanalLA18,730 ft (3.5 mi)197427,551
RTE I278 over 15th Street 17th StreetNY18,472 ft (3.5 mi)1962181,470
Nc32 Nc37 Nc94 over Albemarle SoundNC18,460 ft (3.5 mi)19903,500
Sr281 Avalon Blvd. over East BayFL18,424 ft (3.5 mi)19996,500
I0010 over City StreetsLA18,246 ft (3.5 mi)196947,100
SR 193 over Miss. Sound * D.i. BayAL17,813 ft (3.4 mi)19825,641
Anzalduas Inter over Rio Grande RiverTX17,782 ft (3.4 mi)20096,500
Route 13 Sbl over Cb & Lookout RD - Tres AVA17,607 ft (3.3 mi)19985,424
Route 13 Nbl over Cb & Lookout RD - Tres AVA17,586 ft (3.3 mi)19645,424
Sr618a Selmon Expy over 39th ST To 78th STFL17,000 ft (3.2 mi)200620,500
Is 664 Nbl S Appr over James RiverVA16,685 ft (3.2 mi)199034,964
Is 664 Sbl S Appr over James RiverVA16,636 ft (3.2 mi)199034,566
I-526 over Cooper RiverSC16,450 ft (3.1 mi)199276,300
I-295 SB (buckman) over St. Johns RiverFL16,300 ft (3.1 mi)197065,000
I-295 NB (buckman) over St. Johns RiverFL16,300 ft (3.1 mi)197064,250
Sr30 Us98 EB over Pensacola BayFL16,138 ft (3.1 mi)201955,000
Us98 Sr30 WB over Pensacola BayFL16,138 ft (3.1 mi)202356,835
I-275 SB over Old Tampa BayFL15,899 ft (3.0 mi)199183,500
RTE 87 over Hudson River Mnrr Hu LiNY15,894 ft (3.0 mi)201878,144
I-275 NB over Tampa BayFL15,872 ft (3.0 mi)195983,500
RTE 87 over Hudson River Mnrr Hu LiNY15,837 ft (3.0 mi)201768,962
Pharr/renosa Intl over Rio Grande RiverTX15,770 ft (3.0 mi)19949,525
Ih635 Ih35e W S Dc over Ih635ih35e Royal EtcTX15,663 ft (3.0 mi)20143,907
Us17 over Us17 Bus. & Tar RiverNC15,273 ft (2.9 mi)201019,500
Us64 over Alligator RiverNC15,059 ft (2.9 mi)19604,200
Us158w over Currituck SoundNC14,927 ft (2.8 mi)199510,750
US 1&9 over Hcksck & Pssc Rvrs RdsNJ14,907 ft (2.8 mi)193288,138
Us158e over Currituck SoundNC14,865 ft (2.8 mi)196611,250
Us-92 (sr-600) over Old Tampa BayFL14,859 ft (2.8 mi)197517,750
Nc12 over Oregon InletNC14,799 ft (2.8 mi)20195,900
Us64 over Croatan SoundNC14,265 ft (2.7 mi)19552,400
Us98 Sr30 over Apalachicola BayFL14,174 ft (2.7 mi)19888,100
Us0090 over La 182/la70/loc/drainageLA14,161 ft (2.7 mi)19777,885
49th St. NB over Tampa BayFL14,010 ft (2.7 mi)199368,500
49th St. SB over Tampa BayFL14,010 ft (2.7 mi)199368,500
US 322 over Delaware RiverNJ13,915 ft (2.6 mi)197439,139
US 322 over Delaware RiverPA13,915 ft (2.6 mi)197439,139
Us-92 (sr-600) over Tampa BayFL13,866 ft (2.6 mi)199617,750
I10 Sr8 over Escambia Bay And Fg&a RrFL13,819 ft (2.6 mi)200636,000
SR 619 over Pascagoula BayMS13,808 ft (2.6 mi)1989880
US 82 over Mississippi RiverAR13,752 ft (2.6 mi)20106,800
US 82 over Mississippi RiverMS13,752 ft (2.6 mi)20107,200
Sr8 I10 over Escambia Bay And Fg&a RrFL13,736 ft (2.6 mi)200734,000
I-440 EB Main Lane over I30 Off I530 Sh365 FrazAR13,533 ft (2.6 mi)197753,361
La0006 over Toledo Bend Res.LA13,195 ft (2.5 mi)19673,030
SH 21 over Sabine RiverTX13,195 ft (2.5 mi)19673,014
IH 345 SB over IH 30 US 75 Dart RailTX13,191 ft (2.5 mi)197190,190
IH 345 NB over IH 30 US 75 Dart EtcTX13,113 ft (2.5 mi)197190,190
RTE I278 over Bronx Kills Csx HarlemNY13,109 ft (2.5 mi)1936116,151
Nc12 over Pamlico SoundNC12,985 ft (2.5 mi)20216,300
I-565; Alt US 72 over N/s R.r / City StreetsAL12,943 ft (2.5 mi)199191,064
I-565; Alt US 72 over N/s R.r / City StreetsAL12,838 ft (2.4 mi)199198,210
Pr 100 over Intracoastal WaterwayTX12,509 ft (2.4 mi)197418,777
I135 HWY SB over Rr 12city St& StrmKS12,496 ft (2.4 mi)197743,946
RTE I278 over Bruckner Expwy BrucknerNY12,240 ft (2.3 mi)1960143,338
Us17 over Chowan RiverNC12,208 ft (2.3 mi)19999,500
US 1 (sr 5) over Long Key ChannelFL12,175 ft (2.3 mi)198113,200
I135 HWY NB over Rr 12city St& StrmKS12,110 ft (2.3 mi)197743,946
I 440-sec 1 WB over I30 Sh365 Frazier FourchAR12,088 ft (2.3 mi)197718,000
Us0090 over Alligator BayouLA12,079 ft (2.3 mi)19984,014
Us0090 over B.caroline & B.alligatorLA12,074 ft (2.3 mi)199810,035
Us331 Sr83 over Choctawhatchee BayFL12,051 ft (2.3 mi)201613,750
SH 35 over Lavaca BayTX11,901 ft (2.3 mi)196116,610
I0010 over US 51 & SwampsLA11,752 ft (2.2 mi)197248,723
I0010 over US 51 & SwampsLA11,715 ft (2.2 mi)197227,372
I-76 over I-676 SB I-95 & Del RivNJ11,692 ft (2.2 mi)1957110,000
I-76 over I-676 SB I-95 & Del RivPA11,692 ft (2.2 mi)1957110,000
Ih610 E&w/us290(c) over Ih610;us290;mangum&dacomTX11,690 ft (2.2 mi)202031,695
I0110 over City StreetsLA11,548 ft (2.2 mi)197064,059
I0110 over City StreetsLA11,536 ft (2.2 mi)196932,092
Interstate 80 over Gate San Francisco BayCA11,523 ft (2.2 mi)2013265,000
Sc 517 over Intracoastal WaterwaySC11,460 ft (2.2 mi)199320,000
I 80-i 880 Conn over SB 880 I 80 W GrandCA11,345 ft (2.1 mi)1996269,472
I0610 over City StreetsLA11,342 ft (2.1 mi)197540,300
Sc 30 over Ashley Riv & Wappoo CrkSC11,296 ft (2.1 mi)199361,400
RTE I295 over Cross Island Parkway CRNY11,250 ft (2.1 mi)196192,348
Ri 138 over East Passage Narr BayRI11,248 ft (2.1 mi)196928,000
Us101 (hwy 9) over Columbia RiverOR11,200 ft (2.1 mi)19669,117
US 101 over Columbia RWA11,200 ft (2.1 mi)196623,300
US 90 over Bay ST LouisMS11,128 ft (2.1 mi)200816,000
I 20 over Mississippi RiverMS11,052 ft (2.1 mi)197323,000
I0020 over Mississippi RiverLA11,051 ft (2.1 mi)197336,023
SH 35 over Copano BayTX11,009 ft (2.1 mi)20157,538
Interstate 280 over China Basin ViaductCA11,000 ft (2.1 mi)197168,200
IH 45 SB over Trinity River Uprr EtcTX10,865 ft (2.1 mi)197345,774
IH 45 NB over Trinity River Uprr EtcTX10,865 ft (2.1 mi)197343,165
I 295 N & US 40 E over Delaware RiverDE10,795 ft (2.0 mi)195149,755
I 295 S & US 40 W over Delaware RiverDE10,795 ft (2.0 mi)196850,098
I-295 NB & US 40 E over Delaware RiverNJ10,795 ft (2.0 mi)195146,123
I-295 SB & US 40 W over Delaware RiverNJ10,795 ft (2.0 mi)196846,830
I-295(9A) Dames Pt over St.johns Riv.& Mill CoveFL10,645 ft (2.0 mi)198984,321
I-526 EB over US 52&s-60&rr Csxt&nsSC10,615 ft (2.0 mi)199241,150
I-526 WB over US 52&s-60&rr Csxt&nsSC10,615 ft (2.0 mi)199241,150
Beltway 8 over Houston Ship ChannelTX10,538 ft (2.0 mi)198065,551
RTE 908j over Great South BayNY10,537 ft (2.0 mi)19678,443
RTE 908j over Great South BayNY10,519 ft (2.0 mi)19518,443
I0049 over Hwys Strts Rr BayouLA10,503 ft (2.0 mi)199442,770
SH 146 SB over Houston Ship ChannelTX10,491 ft (2.0 mi)199533,130
I0049 over Hwys Strts Rr BayouLA10,487 ft (2.0 mi)19957,400
SH 146 NB over Houston Ship ChannelTX10,461 ft (2.0 mi)199542,466
Interstate 80 over San Francisco Bay 3 StsCA10,303 ft (2.0 mi)1936200,000
Airpt Via (w.b) H1 over Valkbgh Catlin Ohohia STHI10,282 ft (1.9 mi)1981121,900
SH 66 WB over Lake Ray HubbardTX10,279 ft (1.9 mi)200318,423
I0220 over Cross Lake Kcs Csr La 17LA10,229 ft (1.9 mi)198842,148
La0001 over Bayou LafourcheLA10,215 ft (1.9 mi)20093,305
SH 276 over Lake TawakoniTX10,200 ft (1.9 mi)20165,311
Airpt Via (e.b) H1 over Lagn DR Catlin Ohohia STHI10,195 ft (1.9 mi)1981121,900
U.s. Highway 101 over I-80 & US 101 Ramps StrsCA10,054 ft (1.9 mi)195559,000
Route 0003 over Rappahannock River @VA9,988 ft (1.9 mi)19577,559
Sr618 WB & Ramps over Hills Rvr & Downtown TpaFL9,981 ft (1.9 mi)197525,500
U.s. Route 301 over Potomac RiverMD9,966 ft (1.9 mi)202218,550
I 65 over Tennessee RiverAL9,965 ft (1.9 mi)197317,375
I 65 over Tennessee RiverAL9,965 ft (1.9 mi)197317,375
US 301 over Potomac RiverVA9,965 ft (1.9 mi)202218,550
Us17 Nc55 over Neuse R. & Us70NC9,925 ft (1.9 mi)200324,500
RTE I678 over Flushing Creek Meadow LNY9,848 ft (1.9 mi)1963127,491
Sr-618 EB & Ramps over Hills Rvr & Downtown TpaFL9,836 ft (1.9 mi)197525,500
US 17 over Cooper River Town CreekSC9,736 ft (1.8 mi)200594,100
US 181 NB over Nueces BayTX9,637 ft (1.8 mi)196326,259
US 181 SB over Nueces BayTX9,637 ft (1.8 mi)196325,259
Ih610eb To Ih45nb over IH 45 And IH 610TX9,595 ft (1.8 mi)202012,000
US HWY 63/79 over Emmett Sanders Lock&damAR9,578 ft (1.8 mi)19963,000
US 79 -sec 13 over White River; Rr;river RDAR9,467 ft (1.8 mi)20153,200
SH 73/sh 87 EB over Neches RiverTX9,439 ft (1.8 mi)199115,227
SR 160 over San Joaquin Rivr AntiochCA9,437 ft (1.8 mi)197818,900
I 40-sec 52 over Miss Rvr CR Ci ST RrAR9,431 ft (1.8 mi)197345,000
I40 over Miss Rvr CR Ci ST RrTN9,431 ft (1.8 mi)197335,551
I-75 Intl Bridge over ST Mary Riv/portage Av WMI9,280 ft (1.8 mi)19625,242
I0020 over City St/icg Rr/ouachitaLA9,154 ft (1.7 mi)196584,225
I0020 over City St/icg Rr/ouachitaLA9,154 ft (1.7 mi)196566,061
La0070 over Mississippi RiverLA9,102 ft (1.7 mi)196317,100
Md 695 over Patapsco RiverMD9,090 ft (1.7 mi)197630,767
Sc 170 over Broad RiverSC9,000 ft (1.7 mi)200330,600
U.s. Highway 101 over Golden Gate-san Fran BayCA8,997 ft (1.7 mi)193790,932
IH 10 WB Upper Lev over Fredericksburg - PoplarTX8,955 ft (1.7 mi)198981,813
Talmadge Memorial over M4032- 2 SR 25c- 2 Cr744GA8,852 ft (1.7 mi)199122,600
Interstate 80 over Yolo Causeway EastCA8,799 ft (1.7 mi)1963135,000
Penrose Avenue over Schuylkill River & R.r.PA8,779 ft (1.7 mi)194998,192
US 90 over Biloxi BayMS8,765 ft (1.7 mi)200812,500
US 90 over Biloxi BayMS8,765 ft (1.7 mi)200812,500
Route 710 over Long Beach/terminal IslCA8,746 ft (1.7 mi)202050,000
Interstate 5 SB over Yolo BypassCA8,710 ft (1.6 mi)196925,500
Interstate 5 NB over Yolo BypassCA8,710 ft (1.6 mi)196925,500
US 50 over Choptank RiverMD8,650 ft (1.6 mi)198727,191
N&s101- N280&n680 over I 280 I 680 US 101 StoryCA8,645 ft (1.6 mi)197440,000
IH 10 Hov over IH 45 SB H10 EB And MiscTX8,627 ft (1.6 mi)20013,158

Longest Bridge in Each State

Louisiana127,269 ft longestAlabama39,728 ft longestCalifornia36,068 ft longestFlorida35,867 ft longestNorth Carolina27,580 ft longestVirginia24,335 ft longestMaryland21,289 ft longestMississippi20,929 ft longestTexas20,571 ft longestOklahoma20,000 ft longestMichigan19,247 ft longestNew York18,472 ft longestSouth Carolina16,450 ft longestNew Jersey14,907 ft longestPennsylvania13,915 ft longestArkansas13,752 ft longestKansas12,496 ft longestRhode Island11,248 ft longestOregon11,200 ft longestWashington11,200 ft longestDelaware10,795 ft longestHawaii10,282 ft longestTennessee9,431 ft longestGeorgia8,852 ft longestMinnesota8,320 ft longestWisconsin8,318 ft longestPuerto Rico8,316 ft longestMissouri7,847 ft longestColorado7,168 ft longestIllinois7,121 ft longestArizona7,110 ft longestOhio6,580 ft longestNevada6,378 ft longestConnecticut6,368 ft longestIndiana6,235 ft longestIdaho5,898 ft longestKentucky5,865 ft longestMassachusetts5,779 ft longestIowa5,759 ft longestSouth Dakota5,655 ft longestNebraska5,401 ft longestMaine4,748 ft longestNorth Dakota4,517 ft longestDistrict of Columbia4,171 ft longestVermont4,051 ft longestWest Virginia4,008 ft longestUtah3,096 ft longestAlaska2,830 ft longestNew Hampshire2,784 ft longestNew Mexico2,509 ft longestMontana2,437 ft longestWyoming1,829 ft longestU.S. Virgin Islands320 ft longest