1681:
26:
1442:
1529:
1469:
1161:
1029:
1001:
974:
821:
783:
707:
636:
608:
199:
133:
94:
1556:
1493:
1326:
1304:
1191:
941:
894:
859:
146:
1769:
1605:
1390:
1355:
1136:
740:
665:
378:
363:
236:
185:
119:
584:
89:
231:
1078:
1057:
1792:
1581:
1403:
219:
790:
1674:
1384:
935:
888:
815:
777:
1349:
1258:
1220:
734:
602:
40:
1397:
1091:
1798:
1587:
1409:
1264:
1226:
1097:
1084:
1063:
225:
172:
159:
796:
507:, LA 18 turns south, away from the river: first onto Huey P. Long Avenue for one block, then east along 5th Street to Lafayette Street. LA 18 then goes south and ends at the intersection of Lafayette St. and the
1993:
1998:
2003:
1988:
1983:
53:
443:. It spans a total of 79.7 miles (128.3 km). In the more rural parts of LA 18's span, it is commonly referred to as River Road, but it becomes 4th Street once it enters
1727:
1802:
1722:
In
Westwego, LA 18 turns from Louisiana Street onto 4th Street. LA 18 Spur continues southward for 0.6 miles (0.97 km) on Louisiana Street until it meets the
1591:
1417:
239:
535:
highway. (One notable exception is that LA 18 is routed along
Louisiana Street rather than the parallel Sala Avenue through Westwego's historic district.)
1912:
1961:
2018:
1926:
331:
1280:
758:
496:
298:
1978:
341:
336:
71:
1921:
414:
346:
532:
956:
302:
528:
1738:
1175:
649:
566:
306:
294:
290:
1268:
1230:
1105:
1101:
1067:
480:
175:
162:
2008:
1359:
829:
804:
720:
672:
571:
243:
126:
105:
1951:
1616:
1445:
2013:
1936:
1931:
1810:
1599:
1532:
1472:
1272:
1244:
1198:
1164:
1071:
1032:
1004:
977:
825:
800:
710:
639:
612:
418:
202:
179:
136:
101:
1559:
1496:
1329:
1307:
1194:
945:
898:
862:
595:
149:
1956:
495:
northbound, then turns east along Seven Oaks Blvd. while U.S. 90 crosses the
Mississippi River via the
1941:
694:
1946:
1860:
1806:
1612:
1608:
1595:
1421:
1413:
1139:
1016:
919:
915:
911:
748:
744:
668:
591:
422:
410:
406:
381:
366:
247:
188:
122:
1734:
1723:
1291:
808:
676:
587:
508:
436:
97:
1514:
1650:
1638:
1370:
961:
763:
456:
192:
140:
1903:
1543:
1456:
1284:
1234:
1143:
1121:
1109:
1043:
907:
874:
841:
686:
520:
432:
251:
206:
166:
153:
427:
988:
837:
682:
524:
492:
488:
468:
460:
499:. LA 18 meets and briefly cojoins the alternate river road, LA 541. When LA 18 enters
1972:
1117:
523:
and Huey P. Long Avenue in downtown Gretna, LA 18 is largely the original routing of
402:
270:
459:
as Bayou Road, which runs parallel to the
Mississippi River. It intersects with the
1680:
500:
444:
25:
476:
504:
484:
440:
1865:
1852:
280:
503:, LA 18 becomes 4th Street but still continues parallel to the river. In
1673:
472:
39:
1856:
1323:
1301:
1254:
1216:
931:
884:
464:
1911:
662:
431:, it runs from west to east, parallel to the west bank of the
1820:
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
1628:
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
1994:
Transportation in St. John the
Baptist Parish, Louisiana
455:
LA 18 begins as an undivided, two lane road in downtown
1899:
1894:
1334:
1312:
1276:
1238:
950:
903:
1712:
1704:
1696:
1669:
680:
316:
286:
276:
266:
261:
212:
111:
83:
78:
67:
59:
46:
21:
491:, LA 18 leaves the river and briefly merges with
1999:Transportation in St. Charles Parish, Louisiana
2004:Transportation in Jefferson Parish, Louisiana
1989:Transportation in St. James Parish, Louisiana
1984:Transportation in Ascension Parish, Louisiana
8:
1913:Template:Attached KML/Louisiana Highway 18
1743:
542:
355:
1916:
16:State highway in Louisiana, United States
1922:La DOTD State, District, and Parish Maps
1833:
1847:
1845:
1843:
1841:
1839:
1837:
1666:
18:
1861:"Map of LA 18 and Auxiliary Route(s)"
1788:
1782:
1766:
1760:
1577:
1571:
1553:
1547:
1526:
1520:
1512:
1506:
1490:
1484:
1466:
1460:
1439:
1433:
1380:
1374:
1345:
1339:
1317:
1295:
1248:
1210:
1188:
1182:
1158:
1152:
1133:
1127:
1053:
1047:
1026:
1020:
998:
992:
971:
965:
925:
878:
856:
850:
773:
767:
730:
724:
704:
698:
656:
633:
627:
581:
575:
7:
1429:Junction includes incorrect signage
689:; indirect access via frontage road
519:Between the junction with LA 52 in
14:
63:79.7 mi (128.3 km)
2019:1955 establishments in Louisiana
1962:Jefferson Parish (North Section)
1796:
1790:
1767:
1708:0.62 mi (1,000 m)
1679:
1672:
1603:
1585:
1579:
1554:
1527:
1491:
1467:
1440:
1407:
1401:
1395:
1388:
1382:
1353:
1347:
1324:
1302:
1277:East end of U.S. 90 concurrency;
1262:
1256:
1224:
1218:
1189:
1159:
1134:
1095:
1089:
1082:
1076:
1061:
1055:
1038:Northeastern terminus of LA 3160
1027:
999:
972:
939:
933:
892:
886:
857:
819:
813:
794:
788:
781:
775:
738:
732:
705:
663:
644:Northwestern terminus of LA 3120
634:
606:
600:
582:
376:
361:
234:
229:
223:
217:
197:
183:
170:
157:
144:
131:
117:
92:
87:
38:
24:
1416:south (Barataria Boulevard) to
1365:Northern terminus of LA 18 Spur
1239:West end of U.S. 90 concurrency
904:West end of LA 640 concurrency;
1775:(Louisiana Street, 4th Street)
1335:East end of LA 541 concurrency
1313:West end of LA 541 concurrency
1009:Northern terminus of LA 3142;
951:East end of LA 640 concurrency
487:as it continues downriver. At
467:) east of Donaldsonville, the
325:Louisiana State Highway System
1:
1478:Northern terminus of LA 3018;
1451:Southern terminus of LA 560-2
1538:Northern terminus of LA 3017
1170:Northern terminus of LA 3060
1142:(Paul Maillard Road) –
983:Northern terminus of LA 3141
867:Northern terminus of LA 639;
836:LA 3213 passes overhead via
715:Northern terminus of LA 3219
1979:State highways in Louisiana
1952:St. John the Baptist Parish
1623:Partially unsigned junction
1565:Western terminus of LA 466;
1427:Northern terminus of LA 45;
906:Until 2013, LA 640 crossed
620:Western terminus of LA 3089
2035:
1535:(Peters Road, Bark Street)
1502:Eastern terminus of LA 541
1203:Western terminus of LA 541
1174:
1148:Northern terminus of LA 52
1116:I-310 passes overhead via
681:LA 70 passes overhead via
590:(West 10th Street) –
1819:
1814:
1785:
1777:
1763:
1755:
1752:
1749:
1746:
1733:The entire highway is in
1692:
1686:Louisiana Highway 18 Spur
1663:Louisiana Highway 18 Spur
1627:
1620:
1574:
1564:
1550:
1542:
1537:
1523:
1509:
1501:
1487:
1477:
1463:
1455:
1450:
1436:
1426:
1377:
1369:
1364:
1342:
1320:
1298:
1290:
1251:
1243:
1213:
1207:
1202:
1185:
1179:
1169:
1155:
1147:
1130:
1113:
1050:
1042:
1037:
1023:
1015:
1008:
995:
987:
982:
968:
960:
955:
928:
881:
873:
866:
853:
847:
833:
770:
762:
757:
753:Eastern terminus of LA 20
752:
727:
719:
714:
701:
693:
659:
653:
648:
643:
630:
624:
617:
578:
570:
565:
560:
557:
554:
551:
548:
545:
354:
321:
312:
257:
51:
37:
1646:
1634:
469:Veterans Memorial Bridge
531:) and before that, the
980:(Mary Plantation Road)
527:(also LA 2 before the
425:Parishes. Called the
1448:(Barataria Boulevard)
615:east (Marchand Drive)
1917:KML is from Wikidata
1807:West Bank Expressway
1613:West Bank Expressway
1596:West Bank Expressway
1422:West Bank Expressway
1197:(River Road) –
912:Reserve-Edgard Ferry
759:St. John the Baptist
415:St. John the Baptist
395:Louisiana Highway 18
299:St. John the Baptist
31:Louisiana Highway 18
1724:Westbank Expressway
1611:(Lafayette Street,
1281:Huey P. Long Bridge
539:Major intersections
509:Westbank Expressway
497:Huey P. Long Bridge
113:Major intersections
1957:St. Charles Parish
1621:Southern terminus;
1499:(Destrehan Avenue)
1475:(Destrehan Avenue)
1362:(Louisiana Street)
1825:
1824:
1815:Southern terminus
1778:Northern terminus
1720:
1719:
1660:
1659:
1651:Incomplete access
1567:Unsigned junction
1480:Unsigned junction
1285:Mississippi River
1122:Mississippi River
1011:Unsigned junction
908:Mississippi River
869:Unsigned junction
842:Mississippi River
687:Mississippi River
618:Western terminus;
533:Old Spanish Trail
451:Route description
433:Mississippi River
392:
391:
388:
387:
47:Route information
2026:
2009:Great River Road
1947:St. James Parish
1942:Ascension Parish
1907:
1879:
1878:
1876:
1874:
1849:
1801:
1800:
1799:
1794:
1793:
1771:
1770:
1744:
1739:Jefferson Parish
1728:U.S. 90 Business
1683:
1676:
1667:
1653:
1647:
1642:
1635:
1607:
1606:
1590:
1589:
1588:
1583:
1582:
1558:
1557:
1531:
1530:
1495:
1494:
1471:
1470:
1444:
1443:
1412:
1411:
1410:
1405:
1404:
1399:
1398:
1393:
1392:
1391:
1386:
1385:
1358:
1357:
1356:
1351:
1350:
1328:
1327:
1306:
1305:
1267:
1266:
1265:
1260:
1259:
1229:
1228:
1227:
1222:
1221:
1193:
1192:
1163:
1162:
1138:
1137:
1100:
1099:
1098:
1093:
1092:
1087:
1086:
1085:
1080:
1079:
1066:
1065:
1064:
1059:
1058:
1031:
1030:
1003:
1002:
976:
975:
944:
943:
942:
937:
936:
897:
896:
895:
890:
889:
861:
860:
824:
823:
822:
817:
816:
799:
798:
797:
792:
791:
786:
785:
784:
779:
778:
743:
742:
741:
736:
735:
709:
708:
667:
666:
638:
637:
611:
610:
609:
604:
603:
586:
585:
543:
529:1955 renumbering
428:Great River Road
384:
380:
379:
369:
365:
364:
356:
238:
237:
233:
232:
228:
227:
226:
221:
220:
201:
200:
187:
186:
174:
173:
161:
160:
148:
147:
135:
134:
121:
120:
114:
96:
95:
91:
90:
72:1955 renumbering
42:
28:
19:
2034:
2033:
2029:
2028:
2027:
2025:
2024:
2023:
1969:
1968:
1918:
1915:
1910:
1909:
1908:
1892:
1888:
1883:
1882:
1872:
1870:
1851:
1850:
1835:
1830:
1821:
1803:US 90 Bus.
1797:
1795:
1791:
1789:
1768:
1688:
1687:
1684:
1677:
1665:
1656:
1649:
1645:
1637:
1633:
1629:
1622:
1604:
1602:
1592:US 90 Bus.
1586:
1584:
1580:
1578:
1566:
1555:
1528:
1492:
1479:
1468:
1441:
1428:
1418:US 90 Bus.
1408:
1406:
1402:
1400:
1396:
1394:
1389:
1387:
1383:
1381:
1360:LA 18 Spur
1354:
1352:
1348:
1346:
1325:
1303:
1278:
1263:
1261:
1257:
1255:
1225:
1223:
1219:
1217:
1190:
1167:(Barton Avenue)
1160:
1135:
1115:
1096:
1094:
1090:
1088:
1083:
1081:
1077:
1075:
1074:
1062:
1060:
1056:
1054:
1028:
1010:
1000:
973:
940:
938:
934:
932:
905:
893:
891:
887:
885:
868:
858:
838:Gramercy Bridge
835:
820:
818:
814:
812:
811:
795:
793:
789:
787:
782:
780:
776:
774:
739:
737:
733:
731:
706:
683:Sunshine Bridge
664:
635:
619:
607:
605:
601:
599:
598:
583:
541:
525:U.S. Highway 90
517:
493:U.S. Highway 90
461:Sunshine Bridge
453:
435:, running from
377:
375:
362:
360:
240:US 90 Bus.
235:
230:
224:
222:
218:
216:
198:
195:
184:
182:
171:
169:
158:
156:
145:
143:
132:
129:
118:
112:
93:
88:
79:Major junctions
33:
32:
29:
17:
12:
11:
5:
2032:
2030:
2022:
2021:
2016:
2011:
2006:
2001:
1996:
1991:
1986:
1981:
1971:
1970:
1967:
1966:
1965:
1964:
1959:
1954:
1949:
1944:
1939:
1934:
1929:
1891:
1890:
1889:
1887:
1886:External links
1884:
1881:
1880:
1832:
1831:
1829:
1826:
1823:
1822:
1817:
1816:
1813:
1787:
1784:
1780:
1779:
1776:
1765:
1762:
1758:
1757:
1754:
1751:
1748:
1718:
1717:
1714:
1710:
1709:
1706:
1702:
1701:
1698:
1694:
1693:
1690:
1689:
1685:
1678:
1671:
1670:
1664:
1661:
1658:
1657:
1655:
1654:
1643:
1630:
1625:
1624:
1619:
1576:
1573:
1569:
1568:
1563:
1552:
1549:
1546:
1540:
1539:
1536:
1525:
1522:
1518:
1517:
1511:
1508:
1504:
1503:
1500:
1489:
1486:
1482:
1481:
1476:
1465:
1462:
1459:
1453:
1452:
1449:
1438:
1435:
1431:
1430:
1425:
1379:
1376:
1373:
1367:
1366:
1363:
1344:
1341:
1337:
1336:
1333:
1322:
1319:
1315:
1314:
1311:
1300:
1297:
1294:
1288:
1287:
1275:
1253:
1250:
1247:
1241:
1240:
1237:
1215:
1212:
1209:
1205:
1204:
1201:
1187:
1184:
1181:
1178:
1172:
1171:
1168:
1157:
1154:
1150:
1149:
1146:
1132:
1129:
1125:
1124:
1112:
1052:
1049:
1046:
1040:
1039:
1036:
1025:
1022:
1019:
1013:
1012:
1007:
997:
994:
991:
985:
984:
981:
970:
967:
964:
959:
953:
952:
949:
930:
927:
923:
922:
902:
883:
880:
877:
871:
870:
865:
855:
852:
849:
845:
844:
832:
830:Donaldsonville
772:
769:
766:
761:
755:
754:
751:
729:
726:
723:
721:North Vacherie
717:
716:
713:
703:
700:
697:
691:
690:
679:
673:Donaldsonville
661:
658:
655:
652:
646:
645:
642:
632:
629:
626:
622:
621:
616:
580:
577:
574:
572:Donaldsonville
569:
563:
562:
559:
556:
553:
550:
547:
540:
537:
516:
513:
481:Interstate 310
457:Donaldsonville
452:
449:
437:Donaldsonville
390:
389:
386:
385:
372:
370:
352:
351:
350:
349:
344:
339:
334:
328:
327:
319:
318:
317:Highway system
314:
313:
310:
309:
288:
284:
283:
278:
274:
273:
268:
264:
263:
259:
258:
255:
254:
214:
210:
209:
127:North Vacherie
115:
109:
108:
106:Donaldsonville
85:
81:
80:
76:
75:
69:
65:
64:
61:
57:
56:
54:Louisiana DOTD
52:Maintained by
49:
48:
44:
43:
35:
34:
30:
23:
22:
15:
13:
10:
9:
6:
4:
3:
2:
2031:
2020:
2017:
2015:
2014:U.S. Route 90
2012:
2010:
2007:
2005:
2002:
2000:
1997:
1995:
1992:
1990:
1987:
1985:
1982:
1980:
1977:
1976:
1974:
1963:
1960:
1958:
1955:
1953:
1950:
1948:
1945:
1943:
1940:
1938:
1935:
1933:
1930:
1928:
1925:
1924:
1923:
1920:
1919:
1914:
1905:
1901:
1897:
1896:
1885:
1868:
1867:
1862:
1858:
1854:
1848:
1846:
1844:
1842:
1840:
1838:
1834:
1827:
1818:
1812:
1808:
1804:
1781:
1774:
1759:
1745:
1742:
1740:
1736:
1731:
1729:
1725:
1716:1960s–present
1715:
1711:
1707:
1703:
1699:
1695:
1691:
1682:
1675:
1668:
1662:
1652:
1644:
1640:
1632:
1631:
1626:
1618:
1614:
1610:
1601:
1597:
1593:
1570:
1561:
1545:
1541:
1534:
1519:
1516:
1505:
1498:
1483:
1474:
1458:
1454:
1447:
1446:LA 560-2
1432:
1423:
1419:
1415:
1372:
1368:
1361:
1338:
1331:
1316:
1309:
1293:
1289:
1286:
1282:
1274:
1270:
1246:
1242:
1236:
1232:
1206:
1200:
1196:
1177:
1173:
1166:
1151:
1145:
1141:
1126:
1123:
1119:
1118:Luling Bridge
1111:
1107:
1103:
1073:
1070:north –
1069:
1045:
1041:
1034:
1018:
1014:
1006:
990:
986:
979:
963:
958:
954:
947:
924:
921:
917:
913:
909:
900:
876:
872:
864:
846:
843:
839:
831:
828:south –
827:
810:
806:
802:
765:
760:
756:
750:
746:
722:
718:
712:
696:
692:
688:
684:
678:
674:
670:
651:
647:
641:
623:
614:
597:
593:
589:
573:
568:
564:
544:
538:
536:
534:
530:
526:
522:
514:
512:
510:
506:
502:
498:
494:
490:
486:
482:
478:
474:
470:
466:
462:
458:
450:
448:
446:
442:
438:
434:
430:
429:
424:
420:
416:
412:
408:
404:
403:state highway
400:
396:
383:
373:
371:
368:
358:
357:
353:
348:
345:
343:
340:
338:
335:
333:
330:
329:
326:
323:
322:
320:
315:
311:
308:
304:
300:
296:
292:
289:
285:
282:
279:
275:
272:
271:United States
269:
265:
260:
256:
253:
249:
245:
241:
215:
213:East end
211:
208:
204:
196:
194:
190:
181:
177:
168:
164:
155:
151:
142:
138:
128:
124:
116:
110:
107:
103:
99:
86:
84:West end
82:
77:
73:
70:
66:
62:
58:
55:
50:
45:
41:
36:
27:
20:
1893:
1871:. Retrieved
1864:
1772:
1753:Destinations
1732:
1721:
1648:
1636:
1617:Belle Chasse
1562:(5th Street)
1533:LA 3017
1515:Harvey Canal
1513:Bridge over
1473:LA 3018
1332:(River Road)
1310:(River Road)
1271:east –
1233:west –
1165:LA 3060
1114:Interchange;
1035:(Home Place)
1033:LA 3160
1005:LA 3142
978:LA 3141
834:Interchange;
826:LA 3213
801:LA 3213
747:west –
711:LA 3219
640:LA 3120
613:LA 3089
558:Destinations
518:
454:
426:
405:that serves
398:
394:
393:
324:
203:LA 3017
137:LA 3213
130:
102:LA 3089
1937:District 62
1932:District 61
1927:District 02
1873:November 5,
1869:. Microsoft
1811:New Orleans
1639:Concurrency
1600:New Orleans
1560:LA 466
1497:LA 541
1330:LA 541
1308:LA 541
1273:New Orleans
1245:Bridge City
1199:Bridge City
1195:LA 541
1072:New Orleans
957:St. Charles
946:LA 640
899:LA 640
863:LA 639
489:Bridge City
419:St. Charles
303:St. Charles
244:Future I-49
180:Bridge City
150:LA 640
1973:Categories
1828:References
1773:LA 18
1609:LA 23
1414:LA 45
1269:US 90
1231:US 90
1140:LA 52
1106:US 90
745:LA 20
669:LA 70
596:Plaquemine
382:LA 19
367:LA 17
332:Interstate
248:LA 23
189:LA 45
176:US 90
123:LA 20
1866:Bing Maps
1853:Microsoft
1809:) –
1615:) –
1598:) –
1176:Jefferson
1104:south to
1017:Hahnville
803:north to
749:Thibodaux
650:St. James
592:Thibodaux
588:LA 1
567:Ascension
423:Jefferson
411:St. James
407:Ascension
307:Jefferson
295:St. James
291:Ascension
281:Louisiana
98:LA 1
1895:KML file
1735:Westwego
1700:Westwego
1697:Location
1641:terminus
1292:Westwego
1108: –
809:Gramercy
807: –
677:Sorrento
671: –
549:Location
501:Westwego
445:Westwego
287:Parishes
262:Location
246: /
242: /
100: /
74:–present
1863:(Map).
1713:Existed
1371:Marrero
1283:across
1208:
1180:
1120:across
962:Killona
848:
764:Wallace
685:across
654:
625:
515:History
477:Wallace
473:LA 3213
401:) is a
267:Country
193:Marrero
141:Wallace
68:Existed
1705:Length
1544:Gretna
1457:Harvey
1235:Boutte
1144:Boutte
1110:Boutte
1044:Luling
875:Edgard
546:Parish
521:Luling
505:Gretna
485:Luling
479:, and
441:Gretna
421:, and
347:Scenic
252:Gretna
207:Harvey
167:Luling
154:Edgard
60:Length
1857:Nokia
1756:Notes
1575:128.3
1551:127.5
1524:125.2
1510:125.0
1488:124.9
1464:124.9
1437:123.3
1378:122.8
1343:118.0
1321:117.2
1299:116.4
1252:114.3
1214:112.8
1186:112.2
1102:I-310
1068:I-310
948:south
920:LA 53
916:LA 44
901:north
840:over
695:Lagan
561:Notes
483:near
475:) in
465:LA 70
399:LA 18
342:State
277:State
163:I-310
1904:help
1900:edit
1875:2012
1786:1.00
1783:0.62
1764:0.00
1761:0.00
1572:79.7
1548:79.2
1521:77.8
1507:77.7
1485:77.6
1461:77.6
1434:76.6
1375:76.3
1340:73.3
1318:72.8
1296:72.3
1249:71.0
1211:70.1
1183:69.7
1156:92.2
1153:57.3
1131:89.8
1128:55.8
1051:88.7
1048:55.1
1024:83.4
1021:51.8
996:77.6
993:48.2
989:Taft
969:74.2
966:46.1
929:62.9
926:39.1
918:and
910:via
882:62.6
879:38.9
854:54.6
851:33.9
805:I-10
771:49.7
768:30.9
728:42.6
725:26.5
702:32.8
699:20.4
660:13.4
1730:).
1279:At
914:to
657:8.3
631:5.0
628:3.1
579:0.0
576:0.0
439:to
250:in
205:in
191:in
178:in
165:in
152:in
139:in
125:in
104:in
1975::
1902:•
1859:.
1855:;
1836:^
1750:km
1747:mi
1741:.
1737:,
675:,
594:,
555:km
552:mi
511:.
447:.
417:,
413:,
409:,
374:→
359:←
337:US
305:,
301:,
297:,
293:,
1906:)
1898:(
1877:.
1805:(
1726:(
1594:(
1424:)
1420:(
471:(
463:(
397:(
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
