428:'s facilities at the site throughout the 20th century. When the airport & facilities were expanded in the mid-20th century, the segment of South Oyster Bay Road between present-day Aerospace Boulevard and NY 107 was bypassed with a new alignment skirting the northwest side of the expanded airfield, to make room for a runway extension. Upon completion of the relocated roadway in 1951, the original alignment between the north side of the LIRR tracks southwards to the south side of the former airfield (including the original grade crossing) was eliminated; the runway expansion was completed shortly thereafter. The remaining segments of the original alignment are now known as
417:, via South Oyster Bay Road, Jackson Avenue, Berry Hill Road, and Lexington Avenue. Furthermore, all of Jackson Avenue was originally part of CR 9 and owned by Nassau County. The segment of Jackson Avenue between Jericho Turnpike (NY 25) and Underhill Boulevard (CR E42) in Syosset was eventually decommissioned as a county highway, upon that segment's ownership being transferred from Nassau County to the Town of Oyster Bay; this former segment of CR 9 is now a town-maintained highway.
599:
97:
398:
708:
762:
488:
136:
63:
672:
120:
110:
389:. Within that village, the road then continues north before curving towards the northwest and then reaching an intersection with the North Hempstead Turnpike (NY 25A); this location marks the northern end of the northern segment of CR 9, and Berry Hill Road continues north from this intersection as CR C16.
432:. Following the airport's closure in the 1990s, the airport was redeveloped while Northrop Grumman retained a portion of the property for corporate offices. It continues to serve as a major access highway for freight traffic heading to and from the redeveloped site, which contains a large industrial park.
384:
The northern segment of CR 9 begins as
Jackson Avenue, at the intersection of Underhill Boulevard (CR E42) and the town-maintained segment of Jackson Avenue. From there, it runs northeast, reaching the southern terminus of CR E39 (Jackson Avenue / Cold Spring Road) one block later. CR 9 then veers
405:
Like all other county routes in Nassau County, County Route 9 became unsigned in the 1970s, when Nassau County officials opted to remove the signs as opposed to allocating the funds for replacing them with new ones that met the latest federal design standards and requirements, as per the federal
371:
shortly thereafter, and then crosses over that highway before immediately intersecting with the North
Service Road; South Oyster Bay Road serves as Exit 43 on I-495. South Oyster Bay Road then continues it way northwards through Syosset, until reaching an intersection with
335:
at grade, and then curves back to the north and reaching
Aerospace Boulevard & Old South Oyster Bay Road shortly thereafter. From there, it continues straight, northwards along the Hicksville–Bethpage line, and soon intersects
1310:
367:; this interchange is Exit 36 N–S. CR 9 crosses the parkway and fully enters Syosset at the interchange. It then continues north-northeast and reaches the Terrehans Lane & the South Service Road of the
363:
border at an intersection with Market Lane. From there, CR 9 curves slightly towards the north-northeast, continuing along the
Hicksville–Syosset line, soon reaching a cloverleaf interchange with the
376:
and
Jackson Avenue; this marks the north end of the southern segment of CR 9 – and of South Oyster Bay Road. The roadway continues north as a Town of Oyster Bay-maintained segment of Jackson Avenue.
1303:
303:
in
Syosset. The northern, 1.1-mile (1.8 km) segment consists of portions of Jackson Avenue and Berry Hill Road, and extends from Underhill Boulevard (CR E42) in Syosset to the
385:
north onto Berry Hill Road and immediately thereafter intersects
Muttontown–Eastwoods Road (CR C69). It then winds its way through northern Syosset and eventually enters the
1583:
1296:
1319:
798:
557:
345:
337:
258:
209:
955:
821:
323:. From there, it runs north along the edge of the former airport property, soon reaching an intersection with Hazel Street and Grumman Road West on the Bethpage–
1102:
307:
in Oyster Bay Cove; the two segments are separated by a Town of Oyster Bay-owned segment of
Jackson Avenue – a segment which itself was once part of CR 9.
1593:
1472:
963:
817:
1562:
1557:
1552:
1547:
1542:
1517:
1467:
1462:
1457:
1452:
1447:
1442:
1437:
1432:
1427:
1422:
1417:
1412:
1407:
1402:
1397:
1392:
1382:
1357:
1352:
1342:
572:
407:
356:
90:
1372:
1367:
1362:
1347:
1332:
272:
38:
413:
When originally designated, County Route 9 formed a continuous north-south route between NY 107 in
Bethpage and West Main Street (CR E52) in the
355:
North of Old
Country Road, South Oyster Bay Road continues straight, northwards along the Hicksville–Plainview border, and eventually reaches
1218:
295:
County Route 9 is split into two segments. The southern, 4.38-mile (7.05 km) segment consists of South Oyster Bay Road and extends from
1613:
328:
738:
711:
528:
1075:
1040:
1009:
1588:
414:
262:
1603:
1598:
1608:
749:
656:
638:
386:
239:
201:
143:
113:
1490:
765:
491:
421:
320:
304:
139:
66:
675:
445:
227:
182:
123:
1269:
1244:
683:
616:
602:
368:
364:
100:
720:
505:
332:
581:
537:
516:
499:
324:
1337:
773:
610:
541:
495:
349:
86:
688:
Northern terminus of South Oyster Bay Road and the southern segment of CR 9; at-grade intersection
1510:
1103:"Hicksville (north)-Nassau County: New York State Department of Transportation - Map Collections"
769:
679:
606:
512:
475:
441:
235:
70:
1527:
623:
585:
360:
246:
104:
1522:
1485:
553:
373:
341:
300:
172:
82:
1288:
1532:
1387:
717:
1505:
912:
223:
1577:
1537:
1497:
1477:
162:
956:"New York State Department of Transportation – County Roads Listing – Nassau County"
397:
1048:
1017:
867:
231:
1176:
Morris, Tom (June 10, 1992). "Grumman Wins OK On Day Center For Disabled".
1204:
1183:
1159:
1133:
995:
359:. It then continues north, and it soon reaches the Hicksville–Plainview–
1199:
1178:
1154:
1128:
990:
425:
988:
Rabb, Charles (April 27, 1975). "Terrestrial Voyage for Space Wings".
695:
Gap in route; connection made via town-owned segment of Jackson Avenue
868:"New York State Department of Transportation Functional Class Viewer"
316:
296:
254:
245:
Consisting of two disconnected segments – one linking Bethpage &
725:
Roadway continues south as town-maintained segment of Jackson Avenue
690:
Roadway continues north as town-maintained segment of Jackson Avenue
340:. North of this intersection, South Oyster Bay Road soon intersects
716:
Southern terminus of the northern segment of CR 9; access to the
727:
southern terminus of county-maintained segment of Jackson Avenue
1292:
1076:"Hicksville quadrangle, New York-Nassau Co - Map Collections"
785:
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
778:
At-grade intersection; northern terminus of CR 9 designation
327:
Line. It then curves towards the northeast, crosses the
249:, and the other linking Syosset & Oyster Bay Cove,
253:
was originally a continuous north-south route between
641:
at exit 43, via South Service Road (Terrehans Lane)
192:
178:
168:
158:
153:
130:
76:
57:
52:
44:
31:
18:
1486:Linden Boulevard / Central Avenue (Valley Stream)
913:"New York State Roadway Inventory System Viewer"
799:List of county routes in Nassau County, New York
1304:
1245:"Quietly, LI road becomes truck access route"
1126:"State Backs Grumman In Water Supply Fight".
8:
1270:"Northrop Grumman selling Bethpage property"
1203:. February 20, 1951. p. 27 – via
964:New York State Department of Transportation
818:New York State Department of Transportation
615:Exit 36 N–S on the Northern State Parkway;
420:CR 9 served as a major access road for the
1311:
1297:
1289:
1132:. October 14, 1940. p. 2 – via
450:
1158:. April 11, 1950. p. 29 – via
1107:Map Collections – Brooklyn Public Library
1080:Map Collections – Brooklyn Public Library
780:Berry Hill Road continues north as CR C16
408:Manual on Uniform Traffic Control Devices
1584:County routes in Nassau County, New York
1321:County routes in Nassau County, New York
396:
311:Southern segment (South Oyster Bay Road)
273:Nassau County Department of Public Works
809:
315:The southern segment of CR 9 begins at
440:The entire road is located within the
319:) in Bethpage, adjacent to the former
15:
1171:
1169:
1147:
1145:
1143:
907:
862:
759:
753:
737:
731:
705:
699:
669:
663:
651:
645:
633:
627:
596:
590:
571:
565:
552:
546:
527:
521:
485:
479:
222:is a major, 6.09-mile (9.80 km)
7:
1232:– via NYS Historic Newspapers.
1097:
1095:
1070:
1068:
1066:
1010:"Nassau-Suffolk County Road History"
983:
981:
950:
948:
946:
944:
942:
940:
938:
936:
934:
932:
905:
903:
901:
899:
897:
895:
893:
891:
889:
887:
860:
858:
856:
854:
852:
850:
848:
846:
844:
842:
822:County Roads Listing – Nassau County
634:South Service Road / Terrehans Lane
1594:Streets in Nassau County, New York
1197:"Photo Standalone 7 -- No Title".
1152:"Clear Way for Grumman Airstrip".
768:(North Hempstead Turnpike) –
739:Muttontown Eastwoods Road (CR C69)
659:at exit 43, via North Service Road
655:Westbound traffic only; access to
637:Eastbound traffic only; access to
462:
14:
305:North Hempstead Turnpike (NY 25A)
1268:Winzelberg, David (2021-11-16).
760:
706:
670:
597:
486:
134:
118:
108:
95:
61:
48:6.09 mi (9.80 km)
1491:Central Avenue (Baxter Estates)
271:is owned and maintained by the
1243:Kellard, Joseph (2015-08-31).
369:Long Island Expressway (I-495)
210:County Routes in Nassau County
1:
1225:. 17 January 1997. p. 18
1041:"County Roads on Long Island"
657:I-495 (Long Island Expressway
639:I-495 (Long Island Expressway
457:
1016:. 2009-01-03. Archived from
712:Underhill Boulevard (CR E42)
1614:Oyster Bay (town), New York
504:Southern terminus of CR 9;
348:, now along the Hicksville–
1630:
678:(Jericho Turnpike) –
387:Village of Oyster Bay Cove
240:Village of Oyster Bay Cove
1328:
1274:Long Island Business News
1249:Long Island Business News
1182:. p. 31 – via
994:. p. 17 – via
784:
777:
756:
748:
744:
734:
715:
702:
694:
687:
666:
654:
648:
636:
630:
622:
614:
593:
580:
576:
568:
561:
549:
536:
532:
524:
511:
503:
482:
474:
469:
466:
461:
456:
453:
430:Old South Oyster Bay Road
259:West Main Street (CR E52)
202:County routes in New York
197:
188:
149:
36:
27:
554:Old Country Road (CR 25)
422:Grumman Bethpage Airport
374:Jericho Turnpike (NY 25)
342:Old Country Road (CR 25)
321:Grumman Bethpage Airport
301:Jericho Turnpike (NY 25)
83:Old Country Road (CR 25)
558:Plainview Road (CR D16)
529:Stewart Avenue (CR E33)
401:Former shield for CR 9.
346:Plainview Road (CR D16)
338:Stewart Avenue (CR E33)
234:, New York, connecting
617:cloverleaf interchange
603:Northern State Parkway
402:
365:Northern State Parkway
101:Northern State Parkway
573:Woodbury Road (CR 12)
506:at-grade intersection
400:
357:Woodbury Road (CR 12)
333:Long Island Rail Road
285:South Oyster Bay Road
220:Nassau County Route 9
91:Woodbury Road (CR 12)
21:Nassau County Route 9
1589:Roads on Long Island
1223:The Bethpage Tribune
415:hamlet of Oyster Bay
1604:Plainview, New York
436:Major intersections
78:Major intersections
1599:Bethpage, New York
1511:East Meadow Avenue
1219:"Appeal No. 97-30"
1051:on January 3, 2009
652:North Service Road
494:(Broadway) –
442:Town of Oyster Bay
403:
275:, and consists of
257:) in Bethpage and
1609:Syosset, New York
1571:
1570:
1039:Anderson, Steve.
790:
789:
299:) in Bethpage to
291:Route description
217:
216:
32:Route information
1621:
1322:
1313:
1306:
1299:
1290:
1284:
1283:
1281:
1280:
1265:
1259:
1258:
1256:
1255:
1240:
1234:
1233:
1231:
1230:
1215:
1209:
1208:
1194:
1188:
1187:
1173:
1164:
1163:
1149:
1138:
1137:
1123:
1117:
1116:
1114:
1113:
1099:
1090:
1089:
1087:
1086:
1072:
1061:
1060:
1058:
1056:
1047:. Archived from
1036:
1030:
1029:
1027:
1025:
1006:
1000:
999:
985:
976:
975:
973:
972:
960:
952:
927:
926:
924:
923:
909:
882:
881:
879:
878:
864:
837:
836:
834:
832:
826:
820:(July 1, 2020).
814:
764:
763:
710:
709:
674:
673:
601:
600:
490:
489:
464:
459:
451:
380:Northern segment
317:Broadway (NY 107
297:Broadway (NY 107
255:Broadway (NY 107
138:
137:
122:
121:
112:
111:
99:
98:
79:
65:
64:
16:
1629:
1628:
1624:
1623:
1622:
1620:
1619:
1618:
1574:
1573:
1572:
1567:
1324:
1320:
1317:
1287:
1278:
1276:
1267:
1266:
1262:
1253:
1251:
1242:
1241:
1237:
1228:
1226:
1217:
1216:
1212:
1196:
1195:
1191:
1175:
1174:
1167:
1151:
1150:
1141:
1125:
1124:
1120:
1111:
1109:
1101:
1100:
1093:
1084:
1082:
1074:
1073:
1064:
1054:
1052:
1038:
1037:
1033:
1023:
1021:
1008:
1007:
1003:
987:
986:
979:
970:
968:
958:
954:
953:
930:
921:
919:
911:
910:
885:
876:
874:
866:
865:
840:
830:
828:
824:
816:
815:
811:
807:
795:
786:
779:
761:
750:Oyster Bay Cove
742:Split Rock Road
741:
726:
724:
707:
689:
671:
598:
556:
487:
438:
395:
382:
313:
293:
277:Berry Hill Road
144:Oyster Bay Cove
135:
119:
117:
109:
107:
96:
94:
89:
77:
62:
53:Major junctions
23:
22:
12:
11:
5:
1627:
1625:
1617:
1616:
1611:
1606:
1601:
1596:
1591:
1586:
1576:
1575:
1569:
1568:
1566:
1565:
1560:
1555:
1550:
1545:
1540:
1535:
1530:
1525:
1520:
1515:
1514:
1513:
1508:
1506:Dutch Broadway
1500:
1495:
1494:
1493:
1488:
1480:
1475:
1470:
1465:
1460:
1455:
1450:
1445:
1440:
1435:
1430:
1425:
1420:
1415:
1410:
1405:
1400:
1395:
1390:
1385:
1380:
1375:
1370:
1365:
1360:
1355:
1350:
1345:
1340:
1335:
1329:
1326:
1325:
1318:
1316:
1315:
1308:
1301:
1293:
1286:
1285:
1260:
1235:
1210:
1189:
1165:
1139:
1118:
1091:
1062:
1031:
1001:
977:
928:
917:gis.dot.ny.gov
883:
872:gis.dot.ny.gov
838:
808:
806:
803:
802:
801:
794:
791:
788:
787:
782:
781:
776:
758:
755:
752:
746:
745:
743:
736:
733:
729:
728:
714:
704:
701:
697:
696:
692:
691:
686:
668:
665:
661:
660:
653:
650:
647:
643:
642:
635:
632:
629:
626:
620:
619:
613:
595:
592:
589:
578:
577:
575:
570:
567:
563:
562:
560:
551:
548:
545:
534:
533:
531:
526:
523:
520:
509:
508:
502:
484:
481:
478:
472:
471:
468:
465:
460:
455:
437:
434:
394:
391:
381:
378:
312:
309:
292:
289:
281:Jackson Avenue
251:County Route 9
224:county highway
215:
214:
213:
212:
206:
205:
195:
194:
193:Highway system
190:
189:
186:
185:
180:
176:
175:
170:
166:
165:
160:
156:
155:
151:
150:
147:
146:
132:
131:North end
128:
127:
80:
74:
73:
59:
58:South end
55:
54:
50:
49:
46:
42:
41:
37:Maintained by
34:
33:
29:
28:
25:
24:
20:
19:
13:
10:
9:
6:
4:
3:
2:
1626:
1615:
1612:
1610:
1607:
1605:
1602:
1600:
1597:
1595:
1592:
1590:
1587:
1585:
1582:
1581:
1579:
1564:
1561:
1559:
1556:
1554:
1551:
1549:
1546:
1544:
1541:
1539:
1536:
1534:
1531:
1529:
1526:
1524:
1521:
1519:
1516:
1512:
1509:
1507:
1504:
1503:
1501:
1499:
1496:
1492:
1489:
1487:
1484:
1483:
1481:
1479:
1476:
1474:
1471:
1469:
1466:
1464:
1461:
1459:
1456:
1454:
1451:
1449:
1446:
1444:
1441:
1439:
1436:
1434:
1431:
1429:
1426:
1424:
1421:
1419:
1416:
1414:
1411:
1409:
1406:
1404:
1401:
1399:
1396:
1394:
1391:
1389:
1386:
1384:
1381:
1379:
1376:
1374:
1371:
1369:
1366:
1364:
1361:
1359:
1356:
1354:
1351:
1349:
1346:
1344:
1341:
1339:
1336:
1334:
1331:
1330:
1327:
1323:
1314:
1309:
1307:
1302:
1300:
1295:
1294:
1291:
1275:
1271:
1264:
1261:
1250:
1246:
1239:
1236:
1224:
1220:
1214:
1211:
1206:
1202:
1201:
1193:
1190:
1185:
1181:
1180:
1172:
1170:
1166:
1161:
1157:
1156:
1148:
1146:
1144:
1140:
1135:
1131:
1130:
1122:
1119:
1108:
1104:
1098:
1096:
1092:
1081:
1077:
1071:
1069:
1067:
1063:
1050:
1046:
1042:
1035:
1032:
1020:on 2009-01-03
1019:
1015:
1011:
1005:
1002:
997:
993:
992:
984:
982:
978:
966:
965:
957:
951:
949:
947:
945:
943:
941:
939:
937:
935:
933:
929:
918:
914:
908:
906:
904:
902:
900:
898:
896:
894:
892:
890:
888:
884:
873:
869:
863:
861:
859:
857:
855:
853:
851:
849:
847:
845:
843:
839:
823:
819:
813:
810:
804:
800:
797:
796:
792:
783:
775:
771:
767:
751:
747:
740:
730:
722:
719:
713:
698:
693:
685:
681:
677:
662:
658:
644:
640:
625:
621:
618:
612:
608:
604:
587:
583:
579:
574:
564:
559:
555:
543:
539:
535:
530:
518:
514:
510:
507:
501:
497:
493:
477:
473:
452:
449:
447:
446:Nassau County
443:
435:
433:
431:
427:
423:
418:
416:
411:
409:
406:government's
399:
392:
390:
388:
379:
377:
375:
370:
366:
362:
358:
353:
351:
347:
343:
339:
334:
330:
326:
322:
318:
310:
308:
306:
302:
298:
290:
288:
286:
282:
278:
274:
270:
266:
264:
260:
256:
252:
248:
243:
241:
237:
233:
229:
228:Nassau County
225:
221:
211:
208:
207:
204:
203:
199:
198:
196:
191:
187:
184:
181:
177:
174:
171:
167:
164:
163:United States
161:
157:
152:
148:
145:
141:
133:
129:
125:
115:
106:
102:
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467:Destinations
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93:in Plainview
766:NY 25A
492:NY 107
232:Long Island
140:NY 25A
67:NY 107
1578:Categories
1279:2024-08-30
1254:2024-08-30
1229:2024-08-30
1112:2024-08-30
1085:2024-08-30
1055:August 30,
1024:August 30,
971:2022-04-14
922:2023-04-02
877:2023-04-02
831:August 30,
805:References
676:NY 25
582:Hicksville
538:Hicksville
517:Hicksville
500:Massapequa
325:Hicksville
263:Oyster Bay
126:in Syosset
124:NY 25
116:in Syosset
774:Calverton
611:Hauppauge
542:Plainview
496:Glen Cove
350:Plainview
329:Main Line
87:Plainview
1205:ProQuest
1184:ProQuest
1160:ProQuest
1134:ProQuest
1045:NYCRoads
1014:NYCRoads
996:ProQuest
827:(Report)
793:See also
770:New York
680:New York
607:New York
605: –
513:Bethpage
476:Bethpage
454:Location
352:border.
238:and the
236:Bethpage
173:New York
154:Location
71:Bethpage
1200:Newsday
1179:Newsday
1155:Newsday
1129:Newsday
991:Newsday
723:station
718:Syosset
624:Syosset
586:Syosset
426:Grumman
393:History
361:Syosset
331:of the
247:Syosset
159:Country
105:Syosset
967:. 2021
424:&
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283:, and
183:Nassau
179:County
45:Length
959:(PDF)
825:(PDF)
470:Notes
444:, in
230:, on
169:State
114:I-495
39:NCDPW
1502:C62
1482:C36
1473:878T
1057:2024
1026:2024
833:2024
757:0.40
754:0.25
735:0.23
732:0.14
721:LIRR
703:0.00
700:0.00
667:7.05
664:4.38
649:5.71
646:3.55
631:5.57
628:3.46
594:5.13
591:3.19
588:line
569:3.99
566:2.48
550:2.49
547:1.55
544:line
525:2.01
522:1.25
519:line
483:0.00
480:0.00
269:CR 9
1563:E64
1558:D92
1553:D71
1548:D69
1543:D55
1538:D46
1533:D39
1528:D24
1523:C91
1518:C65
1498:C52
1478:C26
1468:260
1463:257
1458:189
1453:177
1448:110
1443:107
1438:106
1433:105
1428:101
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261:in
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1418:63
1413:55
1408:27
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1398:15
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