595:
400:
890:
767:
46:
822:
793:
738:
332:
317:
995:
590:
176:
132:
1513:
858:
585:
157:
127:
469:
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
518:, 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
526:
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.
264:
1561:
1152:
1351:
930:
893:
829:
1551:
1471:
1447:
515:
384:
285:
1428:
1394:
998:
491:
372:
179:
1556:
1053:
1301:
1204:
1124:
461:
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.
254:
84:
1409:
1370:
1256:
259:
1292:
295:
269:
1457:
1414:
1375:
1327:
835:
290:
1465:
1061:
277:
1178:
1116:
360:
300:
249:
1346:
569:
536:
499:
439:
320:
222:
143:
446:
in the southern part of the county, commonly called South County; however, the portion of the route south of I-64/
1495:
1490:
1485:
1479:
1422:
1404:
1383:
1341:
1335:
861:
701:
602:
598:
495:
487:
483:
479:
447:
443:
380:
376:
241:
160:
139:
135:
76:
31:
1365:
1359:
1101:
1084:
1546:
1285:
1054:"Table 2: Auxiliary Routes of the Dwight D. Eisenhower National System of Interstate and Defense Highways"
1452:
1442:
1436:
1321:
1002:
869:
606:
511:
455:
610:
523:
1082:
Sutin, Phil; Hopgood, Mei-Ling (January 9, 1997). "Hundreds of Homes Face Razing for New
Highway".
975:
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806:
614:
507:
503:
183:
1399:
1026:
842:
825:
796:
777:
751:
741:
722:
522:
and a longer route. This also results in higher traffic in residential streets and towns such as
335:
164:
1278:
1247:
641:
364:
680:
470:
eliminated. Eager Road access to and from I-170 was also revised in the New I-64 project.
17:
1500:
519:
451:
399:
1540:
1307:
435:
202:
1270:
458:'s Cross County Extension south of I-64 runs roughly along the proposed alignment.
1265:
1099:
Sutin, Phil (March 14, 1997). "Westfall Sours On
Extension of Interstate 170".
1128:
368:
212:
27:
Auxiliary
Interstate Highway in St. Louis County, Missouri, United States
1208:
1006:
948:
45:
1274:
966:
947:
911:
887:
654:
632:
658:
Southbound exit and northbound entrance (via
Galleria Parkway)
394:
1016:
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
1255:
1179:"South County Connector: 1st Phase of 170 South Extension?"
1243:
1238:
410:
486:, a direct access from I-170 and I-64 (US 40) to
379:
at its southern terminus. I-170 crosses its parent,
969:
963:
952:
944:
914:
908:
897:
884:
657:
651:
635:
629:
232:
218:
208:
198:
193:
170:
149:
121:
116:
106:
98:
90:
69:
41:
1151:
30:For the former route in Baltimore, Maryland, see
874:Signed as exit 7A (east) and 7B (west); exit 235
359:, is an 11.17-mile (17.98 km) north–south
107:
1286:
8:
1562:Transportation in St. Louis County, Missouri
1213:(Map). Missouri Department of Transportation
434:I-170 was originally intended to provide an
675:Western terminus of the Forest Park Parkway
633:Brentwood Boulevard north / Eager Road
1293:
1279:
1271:
541:
309:
1260:
1011:Signed as exits 10A (west) and 10B (east)
1153:"Linking South County, Clayton studied"
1044:
970:Northbound exit and southbound entrance
953:Northbound exit and southbound entrance
894:Lambert–St. Louis International Airport
636:Southbound exit and northbound entrance
619:Signed as exits 1A (east) and 1B (west)
516:St. Louis Lambert International Airport
385:St. Louis Lambert International Airport
38:
1205:Missouri Department of Transportation
1125:Missouri Department of Transportation
992:
979:
957:
938:
928:
919:
912:Scudder Road / North Hanley Road
902:
878:
855:
846:
819:
810:
790:
781:
764:
755:
735:
726:
714:
705:
693:
684:
671:
662:
645:
623:
582:
573:
7:
1257:Template:Attached KML/Interstate 170
1052:Starks, Edward (January 27, 2022).
553:
94:11.17 mi (17.98 km)
25:
450:(US 40) was canceled due to
1511:
993:
888:
856:
836:University of Missouri-St. Louis
820:
791:
765:
736:
593:
588:
583:
514:lack access to the Interstates,
498:are lacked. Also, towns such as
398:
330:
315:
174:
155:
130:
125:
44:
1552:Interstate Highways in Missouri
1062:Federal Highway Administration
1058:FHWA Route Log and Finder List
898:Southbound exit is via exit 7B
1:
1557:Auxiliary Interstate Highways
828:(Natural Bridge Road) –
548:
375:at its northern terminus and
278:Missouri State Highway System
478:Because I-170 terminates at
361:auxiliary Interstate Highway
1578:
1266:Kurumi.com: Interstate 170
770:Route D (Page Avenue)
29:
1520:
1509:
1316:
1015:
1010:
989:
984:
974:
960:
941:
934:
925:
922:
905:
881:
873:
852:
849:
841:
833:
816:
813:
805:
801:
787:
784:
776:
772:
761:
758:
750:
746:
732:
729:
721:
717:
711:
708:
700:
696:
690:
687:
679:
674:
668:
665:
655:Brentwood Boulevard south
648:
640:
626:
618:
579:
576:
568:
563:
560:
557:
552:
547:
544:
308:
242:Interstate Highway System
237:
228:
189:
82:
74:
62:
57:
32:Interstate 170 (Maryland)
18:Interstate 170 (Missouri)
1022:
672:Forest Park Parkway east
64:I-170 highlighted in red
1158:St. Louis Post-Dispatch
1102:St. Louis Post-Dispatch
1085:St. Louis Post-Dispatch
799:(St. Charles Rock Road)
535:The entire route is in
915:No northbound entrance
407:This section is empty.
607:Lewis and Clark Trail
438:within I-270 through
357:Inner Belt Expressway
355:), also known as the
58:Inner Belt Expressway
1261:KML is from Wikidata
929:Airport Road –
371:. I-170 connects to
465:Recent construction
349:Interstate 170
151:Major intersections
75:Auxiliary route of
1207:(March 18, 2015).
1117:"Project Overview"
474:Southern extension
1534:
1533:
1036:
1035:
1027:Incomplete access
967:North Hanley Road
744:(Olive Boulevard)
454:. The portion of
427:
426:
391:Route description
365:Greater St. Louis
346:
345:
342:
341:
70:Route information
16:(Redirected from
1569:
1515:
1514:
1310:
1304:
1303:Auxiliary routes
1295:
1288:
1281:
1272:
1251:
1223:
1222:
1220:
1218:
1201:
1195:
1194:
1192:
1190:
1175:
1169:
1168:
1166:
1164:
1155:
1147:
1141:
1140:
1138:
1136:
1127:. Archived from
1113:
1107:
1106:
1096:
1090:
1089:
1079:
1073:
1072:
1070:
1068:
1049:
1029:
1023:
997:
996:
892:
891:
860:
859:
824:
823:
795:
794:
769:
768:
740:
739:
715:Delmar Boulevard
597:
596:
592:
591:
587:
586:
570:Richmond Heights
555:
550:
542:
537:St. Louis County
500:Richmond Heights
452:local opposition
448:US Route 40
440:St. Louis County
422:
419:
409:You can help by
402:
395:
338:
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333:
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318:
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178:
177:
159:
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144:Richmond Heights
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39:
21:
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737:
702:University City
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589:
584:
533:
520:traffic signals
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331:
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117:Major junctions
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1230:External links
1228:
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1196:
1185:. May 14, 2013
1170:
1142:
1131:on May 4, 2007
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913:
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880:
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854:
851:
848:
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839:
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834:Access to the
832:
826:Route 115
818:
815:
812:
809:
803:
802:
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797:Route 180
789:
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742:Route 340
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431:
428:
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392:
389:
344:
343:
340:
339:
336:Route 171
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324:
306:
305:
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303:
298:
293:
288:
282:
281:
273:
272:
267:
262:
257:
252:
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245:
235:
234:
233:Highway system
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229:
226:
225:
220:
216:
215:
210:
206:
205:
200:
196:
195:
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187:
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172:
171:North end
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167:
153:
147:
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123:
122:South end
119:
118:
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100:
96:
95:
92:
88:
87:
83:Maintained by
80:
79:
72:
71:
67:
66:
63:
60:
59:
55:
54:
51:Interstate 170
50:
43:
42:
26:
24:
14:
13:
10:
9:
6:
4:
3:
2:
1574:
1563:
1560:
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1547:Interstate 70
1545:
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1466:West Virginia
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1325:
1324:
1323:
1319:
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1315:
1311:
1309:Interstate 70
1305:
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1212:
1211:
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1184:
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1171:
1159:
1154:
1150:Leiser, Ken.
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1143:
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497:
493:
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485:
481:
473:
471:
464:
462:
459:
457:
453:
449:
445:
442:extending to
441:
437:
436:inner beltway
429:
421:
412:
408:
404:
401:
397:
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207:
204:
203:United States
201:
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185:
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173:
169:
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137:
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68:
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56:
47:
40:
37:
33:
19:
1478:
1464:
1435:
1421:
1389:
1382:
1358:
1334:
1320:
1237:
1215:. Retrieved
1210:MoDOT HPMAPS
1209:
1199:
1187:. Retrieved
1182:
1173:
1161:. Retrieved
1157:
1145:
1133:. Retrieved
1129:the original
1121:The New I-64
1120:
1111:
1100:
1094:
1083:
1077:
1067:February 22,
1065:. Retrieved
1057:
1047:
1024:
561:Destinations
534:
512:Marlbourough
477:
468:
460:
433:
415:
411:adding to it
406:
356:
352:
348:
347:
301:Supplemental
276:
240:
112:Entire route
102:1956–present
36:
1189:January 14,
1183:FOX2now.com
1163:January 19,
1003:Kansas City
870:Kansas City
524:Shrewsbury.
321:US 169
1541:Categories
1039:References
931:Cargo City
830:Cargo City
694:Ladue Road
611:Wentzville
603:US 40
484:US 40
418:April 2022
286:Interstate
140:US 40
1217:March 18,
976:Hazelwood
866:St. Louis
807:Bel-Ridge
615:St. Louis
531:Exit list
508:Maplewood
504:Brentwood
456:MetroLink
255:Auxiliary
223:St. Louis
184:Hazelwood
1527:Proposed
1496:270 Spur
1480:Maryland
1458:Business
1423:Illinois
1415:Business
1384:Missouri
1376:Business
1352:Business
1336:Colorado
1328:Business
1239:KML file
1001: –
864: –
843:Berkeley
778:St. John
752:Overland
723:Olivette
609: –
605: /
601: /
545:Location
369:Missouri
265:Business
260:Suffixed
219:Counties
213:Missouri
194:Location
165:Berkeley
138: /
1135:May 28,
1007:Chicago
985:17.532–
980:10.894–
642:Clayton
430:History
383:, near
199:Country
99:Existed
1524:Former
1360:Kansas
987:18.113
982:11.255
961:15.739
949:Boeing
942:14.864
923:14.753
906:13.803
882:12.506
850:12.318
814:11.309
510:, and
494:, and
270:Future
91:Length
999:I-270
958:9.780
939:9.236
920:9.167
903:8.577
879:7.771
847:7.654
811:7.027
785:9.439
782:5.865
759:6.960
756:4.325
730:5.369
727:3.336
709:3.821
706:2.374
688:2.593
685:1.611
681:Ladue
666:1.883
663:1.170
649:1.302
646:0.809
627:0.705
624:0.438
564:Notes
492:I-270
373:I-270
353:I-170
296:State
209:State
180:I-270
85:MoDOT
1437:Ohio
1322:Utah
1248:help
1244:edit
1219:2015
1191:2018
1165:2018
1137:2007
1069:2023
862:I-70
599:I-64
577:0.00
574:0.00
558:Exit
496:I-44
488:I-55
480:I-64
444:I-55
381:I-70
377:I-64
250:Main
161:I-70
136:I-64
77:I-70
1501:370
1491:270
1486:170
1472:470
1453:670
1448:470
1443:270
1429:270
1410:670
1405:470
1400:370
1395:270
1390:170
1371:670
1366:470
1347:470
1342:270
1306:of
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