584:
389:
879:
756:
35:
811:
782:
727:
321:
306:
984:
579:
165:
121:
1502:
847:
574:
146:
116:
458:
The southern two interchanges on I-170 (at I-64/US 40 and
Galleria Parkway) were reconstructed as part of the first phase of the New I-64 project. Most notably, the new interchange includes direct access to I-170 from eastbound I-64; however, access to Galleria Parkway from northbound I-170 was
507:, South County, and to each other. Because of this, commuters either have to take indirect surface streets as bypasses, such as Hanley Road or River Des Peres Boulevard, which would result in a much higher mileage and time due to
515:
Proposals had been made to solve this problem, such as a new freeway for faster commute or "South County
Connector" to connect Richmond Heights to South County, but these proposals had been postponed due to lack of funding.
253:
1141:
1550:
1042:
450:
The southern portion of I-170 was built using St. Louis County funds in the 1960s through a shallow valley. It was signed as Route 725.
1340:
919:
882:
818:
1540:
1460:
1436:
504:
373:
274:
1545:
1417:
1383:
987:
480:
361:
168:
1290:
1193:
1113:
243:
73:
1015:
1398:
1359:
1245:
248:
1167:
1105:
1281:
284:
258:
1446:
1403:
1364:
1316:
824:
435:
in the southern part of the county, commonly called South County; however, the portion of the route south of I-64/
279:
1454:
1050:
1232:
1227:
266:
349:
1043:"Table 2: Auxiliary Routes of the Dwight D. Eisenhower National System of Interstate and Defense Highways"
289:
238:
1335:
558:
525:
488:
428:
309:
211:
132:
1484:
1479:
1474:
1468:
1411:
1393:
1372:
1330:
1324:
850:
690:
591:
587:
484:
476:
472:
468:
436:
432:
399:
369:
365:
230:
149:
128:
124:
65:
20:
1071:
Sutin, Phil; Hopgood, Mei-Ling (January 9, 1997). "Hundreds of Homes Face Razing for New
Highway".
1354:
1348:
1090:
1073:
511:
and a longer route. This also results in higher traffic in residential streets and towns such as
1535:
1274:
1441:
1431:
1425:
1310:
991:
858:
595:
500:
444:
599:
512:
1244:
459:
eliminated. Eager Road access to and from I-170 was also revised in the New I-64 project.
8:
964:
854:
795:
603:
496:
492:
172:
1388:
831:
814:
785:
766:
740:
730:
711:
324:
153:
1267:
1236:
630:
353:
1259:
447:'s Cross County Extension south of I-64 runs roughly along the proposed alignment.
1254:
669:
1489:
1088:
Sutin, Phil (March 14, 1997). "Westfall Sours On
Extension of Interstate 170".
508:
440:
1117:
1529:
1296:
424:
191:
16:
Auxiliary
Interstate Highway in St. Louis County, Missouri, United States
388:
1197:
1192:
357:
201:
995:
955:
937:
936:
900:
876:
643:
621:
647:
Southbound exit and northbound entrance (via
Galleria Parkway)
1005:
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
1168:"South County Connector: 1st Phase of 170 South Extension?"
34:
475:, a direct access from I-170 and I-64 (US 40) to
1289:
368:
at its southern terminus. I-170 crosses its parent,
958:
952:
941:
933:
903:
897:
886:
873:
646:
640:
624:
618:
1140:
19:For the former route in Baltimore, Maryland, see
1527:
863:Signed as exit 7A (east) and 7B (west); exit 235
348:, is an 11.17-mile (17.98 km) north–south
96:
1275:
1551:Transportation in St. Louis County, Missouri
1202:(Map). Missouri Department of Transportation
1070:
423:I-170 was originally intended to provide an
664:Western terminus of the Forest Park Parkway
622:Brentwood Boulevard north / Eager Road
1282:
1268:
1249:
1000:Signed as exits 10A (west) and 10B (east)
1142:"Linking South County, Clayton studied"
959:Northbound exit and southbound entrance
942:Northbound exit and southbound entrance
883:Lambert–St. Louis International Airport
625:Southbound exit and northbound entrance
608:Signed as exits 1A (east) and 1B (west)
505:St. Louis Lambert International Airport
374:St. Louis Lambert International Airport
1528:
1040:
453:
1263:
1194:Missouri Department of Transportation
1114:Missouri Department of Transportation
1087:
981:
968:
946:
927:
917:
908:
901:Scudder Road / North Hanley Road
891:
867:
844:
835:
808:
799:
779:
770:
753:
744:
724:
715:
703:
694:
682:
673:
660:
651:
634:
612:
571:
562:
462:
1246:Template:Attached KML/Interstate 170
1186:
383:
379:
1098:
1041:Starks, Edward (January 27, 2022).
1034:
13:
1138:
542:
83:11.17 mi (17.98 km)
14:
1562:
1218:
439:(US 40) was canceled due to
1500:
982:
877:
845:
825:University of Missouri-St. Louis
809:
780:
754:
725:
582:
577:
572:
503:lack access to the Interstates,
487:are lacked. Also, towns such as
387:
319:
304:
163:
144:
119:
114:
33:
1541:Interstate Highways in Missouri
1160:
1132:
1081:
1064:
1051:Federal Highway Administration
1047:FHWA Route Log and Finder List
887:Southbound exit is via exit 7B
1:
1546:Auxiliary Interstate Highways
1027:
817:(Natural Bridge Road) –
537:
364:at its northern terminus and
267:Missouri State Highway System
519:
467:Because I-170 terminates at
350:auxiliary Interstate Highway
7:
10:
1567:
1255:Kurumi.com: Interstate 170
759:Route D (Page Avenue)
418:
18:
1509:
1498:
1305:
1004:
999:
978:
973:
963:
949:
930:
923:
914:
911:
894:
870:
862:
841:
838:
830:
822:
805:
802:
794:
790:
776:
773:
765:
761:
750:
747:
739:
735:
721:
718:
710:
706:
700:
697:
689:
685:
679:
676:
668:
663:
657:
654:
644:Brentwood Boulevard south
637:
629:
615:
607:
568:
565:
557:
552:
549:
546:
541:
536:
533:
297:
231:Interstate Highway System
226:
221:
217:
207:
197:
187:
182:
178:
159:
138:
110:
105:
95:
87:
79:
71:
63:
58:
51:
46:
30:
21:Interstate 170 (Maryland)
1011:
661:Forest Park Parkway east
53:I-170 highlighted in red
1147:St. Louis Post-Dispatch
1091:St. Louis Post-Dispatch
1074:St. Louis Post-Dispatch
788:(St. Charles Rock Road)
524:The entire route is in
904:No northbound entrance
396:This section is empty.
596:Lewis and Clark Trail
427:within I-270 through
346:Inner Belt Expressway
344:), also known as the
47:Inner Belt Expressway
1250:KML is from Wikidata
918:Airport Road –
360:. I-170 connects to
454:Recent construction
338:Interstate 170
140:Major intersections
64:Auxiliary route of
1196:(March 18, 2015).
1106:"Project Overview"
463:Southern extension
1523:
1522:
1025:
1024:
1016:Incomplete access
956:North Hanley Road
733:(Olive Boulevard)
443:. The portion of
416:
415:
380:Route description
354:Greater St. Louis
335:
334:
331:
330:
59:Route information
1558:
1504:
1503:
1299:
1293:
1292:Auxiliary routes
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1277:
1270:
1261:
1260:
1240:
1212:
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1209:
1207:
1190:
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1164:
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1144:
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1130:
1129:
1127:
1125:
1116:. Archived from
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729:
728:
704:Delmar Boulevard
586:
585:
581:
580:
576:
575:
559:Richmond Heights
544:
539:
531:
530:
526:St. Louis County
489:Richmond Heights
441:local opposition
437:US Route 40
429:St. Louis County
411:
408:
398:You can help by
391:
384:
327:
323:
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298:
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133:Richmond Heights
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37:
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691:University City
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522:
509:traffic signals
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456:
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106:Major junctions
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1219:External links
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1214:
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1185:
1174:. May 14, 2013
1159:
1131:
1120:on May 4, 2007
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828:
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823:Access to the
821:
815:Route 115
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801:
798:
792:
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789:
786:Route 180
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772:
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731:Route 340
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329:
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325:Route 171
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313:
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282:
277:
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270:
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261:
256:
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234:
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222:Highway system
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209:
205:
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199:
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189:
185:
184:
180:
179:
176:
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161:
160:North end
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156:
142:
136:
135:
112:
111:South end
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81:
77:
76:
72:Maintained by
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68:
61:
60:
56:
55:
52:
49:
48:
44:
43:
40:Interstate 170
39:
32:
31:
15:
9:
6:
4:
3:
2:
1563:
1552:
1549:
1547:
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1536:Interstate 70
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1455:West Virginia
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1300:
1298:Interstate 70
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1285:
1280:
1278:
1273:
1271:
1266:
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1262:
1256:
1253:
1252:
1247:
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1234:
1230:
1229:
1201:
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1195:
1189:
1173:
1169:
1163:
1148:
1143:
1139:Leiser, Ken.
1135:
1119:
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692:
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671:
667:
650:
632:
628:
611:
605:
601:
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560:
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529:
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498:
494:
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482:
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474:
470:
460:
451:
448:
446:
442:
438:
434:
431:extending to
430:
426:
425:inner beltway
410:
401:
397:
393:
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385:
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371:
367:
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192:United States
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174:
170:
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62:
57:
50:
45:
36:
29:
26:
22:
1467:
1453:
1424:
1410:
1378:
1371:
1347:
1323:
1309:
1226:
1204:. Retrieved
1199:MoDOT HPMAPS
1198:
1188:
1176:. Retrieved
1171:
1162:
1150:. Retrieved
1146:
1134:
1122:. Retrieved
1118:the original
1110:The New I-64
1109:
1100:
1089:
1083:
1072:
1066:
1056:February 22,
1054:. Retrieved
1046:
1036:
1013:
550:Destinations
523:
501:Marlbourough
466:
457:
449:
422:
404:
400:adding to it
395:
345:
341:
337:
336:
290:Supplemental
265:
229:
101:Entire route
91:1956–present
25:
1178:January 14,
1172:FOX2now.com
1152:January 19,
992:Kansas City
859:Kansas City
513:Shrewsbury.
310:US 169
1530:Categories
1028:References
920:Cargo City
819:Cargo City
683:Ladue Road
600:Wentzville
592:US 40
473:US 40
407:April 2022
275:Interstate
129:US 40
1206:March 18,
965:Hazelwood
855:St. Louis
796:Bel-Ridge
604:St. Louis
520:Exit list
497:Maplewood
493:Brentwood
445:MetroLink
244:Auxiliary
212:St. Louis
173:Hazelwood
1516:Proposed
1485:270 Spur
1469:Maryland
1447:Business
1412:Illinois
1404:Business
1373:Missouri
1365:Business
1341:Business
1325:Colorado
1317:Business
1228:KML file
990: –
853: –
832:Berkeley
767:St. John
741:Overland
712:Olivette
598: –
594: /
590: /
534:Location
358:Missouri
254:Business
249:Suffixed
208:Counties
202:Missouri
183:Location
154:Berkeley
127: /
1124:May 28,
996:Chicago
974:17.532–
969:10.894–
631:Clayton
419:History
372:, near
188:Country
88:Existed
1513:Former
1349:Kansas
976:18.113
971:11.255
950:15.739
938:Boeing
931:14.864
912:14.753
895:13.803
871:12.506
839:12.318
803:11.309
499:, and
483:, and
259:Future
80:Length
988:I-270
947:9.780
928:9.236
909:9.167
892:8.577
868:7.771
836:7.654
800:7.027
774:9.439
771:5.865
748:6.960
745:4.325
719:5.369
716:3.336
698:3.821
695:2.374
677:2.593
674:1.611
670:Ladue
655:1.883
652:1.170
638:1.302
635:0.809
616:0.705
613:0.438
553:Notes
481:I-270
362:I-270
342:I-170
285:State
198:State
169:I-270
74:MoDOT
1426:Ohio
1311:Utah
1237:help
1233:edit
1208:2015
1180:2018
1154:2018
1126:2007
1058:2023
851:I-70
588:I-64
566:0.00
563:0.00
547:Exit
485:I-44
477:I-55
469:I-64
433:I-55
370:I-70
366:I-64
239:Main
150:I-70
125:I-64
66:I-70
1490:370
1480:270
1475:170
1461:470
1442:670
1437:470
1432:270
1418:270
1399:670
1394:470
1389:370
1384:270
1379:170
1360:670
1355:470
1336:470
1331:270
1295:of
402:.
352:in
171:in
152:in
131:in
97:NHS
1532::
1235:•
1170:.
1145:.
1112:.
1108:.
1049:.
1045:.
994:,
979:10
953:9C
934:9B
915:9A
874:7C
857:,
680:1F
658:1E
641:1D
619:1C
602:,
543:km
538:mi
528:.
495:,
491:,
479:,
376:.
356:,
317:→
302:←
280:US
1283:e
1276:t
1269:v
1239:)
1231:(
1210:.
1182:.
1156:.
1128:.
1094:.
1077:.
1060:.
898:8
842:7
806:6
777:5
751:4
722:3
701:2
569:1
471:/
409:)
405:(
340:(
23:.
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