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State Highway 23 (New Zealand)

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measures the volume of traffic is measured at roughly 13,000 vehicles per day near the eastern terminus while at km 32 closer to Raglan the AADT is measured at roughly 4500 vehicles per day. SH 23 is classified by the NZTA as a primary collector highway as per the One Network Road Classification.
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When SH 1 used to run through the Hamilton CBD, SH 23 began at the intersection of Mill Street and Ulster Street. When SH 1 was diverted westwards away from the CBD SH 23 was shortened to where its eastern terminus currently lies. In June 2021 the Raglan end was shortened by 1.09 km
2492:(to read this, download the whole file using the download link in the menu bar at the top, or use the same menu bar to increase magnification to Level 5 and use the navigation arrows to scroll down just over half way on the left hand side, or go to the 1320:
In the decade to 2016 there were 10 deaths and 64 serious injuries on SH23. 30% hit a roadside hazard, 40% hit an oncoming vehicle, 25% were at junctions, 47% involved alcohol and 48% driving too fast. Work by the
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of the road began after a poll in 1907 and deviations were built to shorten the route, including that over the summit, bypassing what is now Old Mountain Road, which was passable by 1912.
1285:(0.68 mi), to a point near Greenslade Rd, so as to allow more development around the road and a lower speed limit. In July 2022, upon opening of the Hamilton section of the 2546: 1979: 167: 1689: 2514: 1289:, SH 1 moved from its location through Lincoln and Greenwood Streets onto the expressway. The old designation of SH 1 through Hamilton was renumbered SH 1C. 2121: 2493: 2004: 2507: 1336: 1308: 259:(Lincoln Street, Greenwood Street). It travels west down Massey Street, changing to Whatawhata Road after a six-leg roundabout in the suburb of 3195: 2541: 1591: 172: 1311:
descending from 194 m (636 ft) summit. The road descends to 100 m (330 ft) in just over 1 km (0.62 mi).
2530: 1323: 228: 159: 1959: 1942: 1925: 1908: 1721: 1661: 2021: 3144: 3108: 3098: 3083: 3078: 3073: 3068: 3063: 3058: 3053: 3048: 3043: 3038: 3033: 2997: 2992: 2987: 2982: 2977: 2972: 2967: 2962: 2957: 2952: 2947: 2942: 2937: 2932: 2927: 2922: 2917: 2912: 2907: 2902: 2897: 2892: 2887: 2882: 2877: 2872: 2867: 2862: 2857: 2852: 2834: 2829: 2824: 2819: 2814: 2809: 2804: 2799: 2794: 2789: 2784: 2779: 2774: 2769: 2764: 2759: 2754: 2749: 2744: 2739: 2734: 2729: 2724: 2719: 2714: 2709: 2704: 2699: 2694: 2689: 2684: 2679: 2669: 2664: 2659: 2654: 2649: 2644: 2639: 2634: 2629: 2624: 1891: 1874: 1857: 1840: 1823: 1806: 1789: 1772: 1755: 1738: 1543: 1513: 1486: 1451: 1436: 268: 256: 207: 192: 106: 85: 2072: 287:. The route terminates on the approach to Raglan at a point approximately 150 metres (160 yd) west of Greenslade Road. 3200: 3028: 3023: 3018: 3013: 2597: 2592: 2587: 2582: 2577: 2572: 2567: 2562: 2489: 3139: 2142: 1696: 3129: 2482: 2477: 1304: 302: 2472: 2467: 2462: 2097: 1351:
The road was gazetted a State Highway in 1961. In the same year tar-sealing of the road was completed. Prior to that,
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Traffic roughly quadrupled over the period 1975 to 2018, as shown in this table and the graph derived from it.
3134: 2047: 3149: 3159: 1359: 3174: 3113: 1420: 1415: 1389: 326: 260: 248: 236: 3154: 3088: 3164: 3093: 2425: 2399: 2373: 1527: 306: 284: 232: 121: 57: 1572: 1286: 89: 2269: 2347: 2243: 2218: 2295: 1517: 252: 2163: 1467: 17: 276: 1267: 1371: 1297:
80 km/h (50 mph) limits apply at Whatawhata (extended westwards in 2012) and
272: 2188: 3189: 1494: 2844: 2616: 1375: 295: 37: 2607: 1636:"Revoking Section of State Highway 23—Raglan - 2021-au2607 - Te Kāhiti o Aotearoa" 3103: 1635: 1352: 140: 1472: 1367: 264: 110: 2499: 2208:
CW Vennell & Susan Williams: Raglan County Hills and Sea 1876–1976 p. 179
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NZTA Highway Information Sheets (speed limits, widths, seal type, etc.) –
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Until 1863 the route was only passable on foot. By 1864, as part of the
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in 2016/17 on 2 of the 3 sections of road is estimated to cost $ 13.2m.
1298: 1272: 280: 1507: 1480: 1303: 1266: 294: 2122:"SH23 Hamilton to Raglan – Safety Improvements Information sheet" 2503: 1690:"One Network Road Classification: North Island State Highways" 283:
and over tributaries of the Whaingaroa Harbour until reaching
2244:"MAORI REPORT OF THE SPEECHES AT THE MEETING AT PERIA. PRESS" 2143:"State Highway 23 – Hamilton to Raglan – Safety Improvements" 2454: 2048:"Waikato Region speed limit changes | NZ Transport Agency" 2022:"Hamilton section of Waikato Expressway open to traffic" 1362:, about six bridges were built to make it passable for 1521: 1498: 2005:"Agenda for a meeting of the Raglan Community Board" 1271:
SH23 summit, logging truck, Waitetuna valley and Mt
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1924 gradient profile and diagram of main junctions
1366:. Conversion to a road began in 1878 and the first 1339:which traverses the length of SH 23 is provided by 263:. After exiting Hamilton, and reaching the town of 150: 136: 131: 116: 95: 76: 71: 63: 50: 34: 267:it shares a brief concurrency of the north–south 2547:List of motorways and expressways in New Zealand 275:. It then continues west over the summit to the 2219:"RAGLAN BY THE SEA (Waikato Times, 1921-04-28)" 2164:"SH23 Hamilton to Raglan | NZ Transport Agency" 1695:. New Zealand Transport Agency. Archived from 2515: 8: 2322:"Arrival of the Alabama Coach from Hamilton" 2522: 2508: 2500: 1385: 315: 181: 255:at the intersection of Massey Street and 1980:"State highway traffic monitoring sites" 334:200m West of Maori Point Rd, Whatawhata 1603: 1974: 1972: 1662:"State Highway AADT booklet 2014–2018" 1612:"Highway Route 23: The Road to Raglan" 331:880m East of Kakaramea Rd, Whatawhata 31: 2426:"Waikato Argus, DISTRICT NEWS RAGLAN" 2116: 2114: 1553: 1549: 1535: 1531: 1503: 1476: 1444:Massey Hall Overbridge – City Centre 1430: 1424: 88:(Lincoln Street/Greenwood Street) in 7: 2098:"Highway Information Sheet 023-0032" 1630: 1628: 337:90m East of Wrights Rd, near Te Uku 1374:wasn't started until late in 1880. 2542:List of New Zealand state highways 1592:List of New Zealand state highways 1397: 25: 2270:"DAILY SOUTHERN CROSS, THE FRONT" 1984:opendata-nzta.opendata.arcgis.com 109:(Horotiu Road/Kakaramea Road) in 2606: 2348:"Waikato Times, The Raglan Road" 2296:"Waikato Times, The Raglan Road" 1508: 1481: 1446: 1431: 202: 187: 101: 80: 67:42.7 km (26.5 mi) 36: 3145:Classic New Zealand Wine Trail 1960:"SH Traffic Volumes 2014-2018" 1943:"SH Traffic Volumes 2009-2013" 1926:"SH Traffic Volumes 2005-2009" 1909:"SH Traffic Volumes 2000-2004" 1722:"SH Traffic Volumes 1975-1984" 1370:ran in March 1880, though the 1: 3196:State highways in New Zealand 2010:. 12 March 2019. p. 175. 1402: 3130:Twin Coast Discovery Highway 2660:SH 20 (incl. SH 20A, SH 20B) 2473:foot of deviation-Karakariki 2455:New Zealand Transport Agency 2400:"Waikato Argus, Raglan News" 1355:had been completed in 1921. 303:Average annual daily traffic 18:New Zealand State Highway 23 3170:Central Otago Touring Route 231:that connects the towns of 3222: 2531:New Zealand state highways 325:40m East of Newcastle Rd, 160:New Zealand state highways 2604: 2598:SH 8 (incl. SH 8A, SH 8B) 2563:SH 1 (incl. SH 1B, SH 1C) 2537: 2430:paperspast.natlib.govt.nz 2404:paperspast.natlib.govt.nz 2378:paperspast.natlib.govt.nz 2352:paperspast.natlib.govt.nz 2326:paperspast.natlib.govt.nz 2300:paperspast.natlib.govt.nz 2274:paperspast.natlib.govt.nz 2248:paperspast.natlib.govt.nz 2223:paperspast.natlib.govt.nz 1892:"SH Traffic Volumes 1999" 1875:"SH Traffic Volumes 1997" 1858:"SH Traffic Volumes 1994" 1841:"SH Traffic Volumes 1993" 1824:"SH Traffic Volumes 1992" 1807:"SH Traffic Volumes 1991" 1790:"SH Traffic Volumes 1990" 1773:"SH Traffic Volumes 1989" 1756:"SH Traffic Volumes 1988" 1739:"SH Traffic Volumes 1986" 1563: 1556: 1551: 1541: 1533: 1526: 1505: 1478: 1471: 1466: 1459: 1427: 1419: 1414: 1409: 1406: 1401: 1396: 1393: 1388: 229:New Zealand state highway 180: 168:Motorways and expressways 155: 146: 127: 55: 46: 3135:Thermal Explorer Highway 1568:     1341:Waikato Regional Council 3150:Alpine Pacific Triangle 2374:"Waikato Argus, Raglan" 1360:invasion of the Waikato 247:SH 23 commences in the 3160:Foothills Scenic Route 2468:SH23-foot of deviation 1312: 1276: 299: 3175:Southern Scenic Route 3140:Pacific Coast Highway 3007:Former state highways 2478:Karakariki-Whatawhata 1390:Territorial authority 1372:bridge over the Waipa 1307: 1301:(introduced in 2012). 1270: 305:records taken by the 298: 3201:Transport in Waikato 3155:Great Alpine Highway 2893:SH 74 (incl. SH 74A) 2873:SH 67 (incl. SH 67A) 2710:SH 30 (incl. SH 30A) 2705:SH 29 (incl. SH 29A) 2685:SH 25 (incl. SH 25A) 1522:Staggered T-junction 1499:Staggered T-junction 322:20m West of Hawk St 3165:Inland Scenic Route 2483:Whatawhata-Hamilton 2150:Safe Roads Alliance 2129:Safe Roads Alliance 2026:NZ Transport Agency 1669:NZ Transport Agency 1382:Major intersections 1324:Safe Roads Alliance 1309:Hamilton-Raglan bus 1275:from Karamu Walkway 307:NZ Transport Agency 120:Greenslade Road in 97:Major intersections 58:NZ Transport Agency 27:Road in New Zealand 2593:SH 7 (incl. SH 7A) 2588:SH 6 (incl. SH 6A) 2573:SH 3 (incl. SH 3A) 2380:. 20 November 1907 2105:Auckland Motorways 1702:on 9 February 2016 1337:public bus service 1313: 1287:Waikato Expressway 1277: 300: 3183: 3182: 2276:. 12 January 1864 1583: 1582: 1265: 1264: 218: 217: 214: 213: 51:Route information 16:(Redirected from 3213: 3206:Waikato District 2610: 2524: 2517: 2510: 2501: 2442: 2441: 2439: 2437: 2422: 2416: 2415: 2413: 2411: 2396: 2390: 2389: 2387: 2385: 2370: 2364: 2363: 2361: 2359: 2354:. 2 October 1880 2344: 2338: 2337: 2335: 2333: 2318: 2312: 2311: 2309: 2307: 2292: 2286: 2285: 2283: 2281: 2266: 2260: 2259: 2257: 2255: 2250:. 3 January 1863 2240: 2234: 2233: 2231: 2229: 2215: 2209: 2206: 2200: 2199: 2197: 2195: 2185: 2179: 2178: 2176: 2174: 2168:www.nzta.govt.nz 2160: 2154: 2153: 2147: 2139: 2133: 2132: 2131:. 1 August 2016. 2126: 2118: 2109: 2108: 2102: 2094: 2088: 2087: 2085: 2083: 2077:www.nzta.govt.nz 2069: 2063: 2062: 2060: 2058: 2052:www.nzta.govt.nz 2044: 2038: 2037: 2035: 2033: 2018: 2012: 2011: 2009: 2001: 1995: 1994: 1992: 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1288: 1280:Route changes 1279: 1274: 1269: 1260: 1257: 1254: 1251: 1248: 1246: 1243: 1242: 1238: 1235: 1232: 1229: 1226: 1224: 1221: 1220: 1216: 1213: 1210: 1207: 1204: 1202: 1199: 1198: 1194: 1191: 1188: 1185: 1182: 1180: 1177: 1176: 1172: 1169: 1166: 1163: 1160: 1158: 1155: 1154: 1150: 1147: 1144: 1141: 1138: 1136: 1133: 1132: 1128: 1125: 1122: 1119: 1116: 1114: 1111: 1110: 1106: 1103: 1100: 1097: 1094: 1092: 1089: 1088: 1084: 1081: 1078: 1075: 1072: 1070: 1067: 1066: 1062: 1059: 1056: 1053: 1050: 1048: 1045: 1044: 1040: 1037: 1034: 1031: 1028: 1026: 1023: 1022: 1018: 1015: 1012: 1009: 1006: 1004: 1001: 1000: 996: 993: 990: 987: 984: 982: 979: 978: 974: 971: 968: 965: 962: 960: 957: 956: 952: 949: 946: 943: 940: 938: 935: 934: 930: 927: 924: 921: 918: 916: 913: 912: 908: 905: 902: 899: 896: 894: 891: 890: 886: 883: 880: 877: 874: 872: 869: 868: 864: 861: 858: 855: 852: 850: 847: 846: 842: 839: 836: 833: 830: 828: 825: 824: 820: 817: 814: 811: 809: 807: 804: 803: 799: 797: 794: 792: 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321: 318: 317: 314: 311: 308: 304: 297: 291:Traffic flows 290: 288: 286: 282: 278: 274: 270: 266: 262: 258: 254: 250: 242: 240: 238: 234: 230: 226: 222: 209: 199: 197: 194: 184: 183: 179: 174: 171: 169: 166: 165: 162: 161: 157: 156: 154: 149: 145: 142: 139: 135: 130: 126: 123: 119: 117:West end 115: 112: 108: 100: 94: 91: 87: 79: 77:East end 75: 70: 66: 62: 59: 54: 49: 45: 39: 33: 30: 19: 2845:South Island 2674: 2617:North Island 2434:. Retrieved 2429: 2420: 2408:. Retrieved 2403: 2394: 2382:. Retrieved 2377: 2368: 2356:. Retrieved 2351: 2342: 2330:. Retrieved 2325: 2316: 2304:. Retrieved 2299: 2290: 2278:. Retrieved 2273: 2264: 2252:. Retrieved 2247: 2238: 2226:. Retrieved 2222: 2213: 2204: 2192:. Retrieved 2183: 2171:. Retrieved 2167: 2158: 2149: 2137: 2128: 2104: 2092: 2080:. Retrieved 2076: 2067: 2055:. Retrieved 2051: 2042: 2030:. Retrieved 2025: 2016: 1999: 1987:. Retrieved 1983: 1954: 1937: 1920: 1903: 1886: 1869: 1852: 1835: 1818: 1801: 1784: 1767: 1750: 1733: 1716: 1704:. Retrieved 1697:the original 1684: 1672:. Retrieved 1668: 1656: 1646:14 September 1644:. Retrieved 1639: 1615:. Retrieved 1606: 1570:   1557: 1554:Manukau Road 1461:SH 23 begins 1460: 1407:Destinations 1357: 1350: 1334: 1322: 1319: 1296: 1293:Speed limits 1283: 1244: 1222: 1200: 1178: 1156: 1134: 1112: 1090: 1068: 1046: 1024: 1002: 980: 958: 936: 914: 892: 870: 848: 826: 805: 786: 766: 749: 732: 713: 695: 676: 657: 638: 619: 600: 581: 547: 530: 511: 492: 473: 454: 435: 416: 398: 380: 361: 342: 312: 301: 246: 224: 220: 219: 158: 29: 2463:Raglan-SH23 2228:30 December 2189:"23 Raglan" 2173:4 September 2082:5 September 2057:5 September 1573:Concurrency 1518:Ngāruawāhia 1368:stage coach 1364:pack horses 273:Waipā River 141:New Zealand 3190:Categories 2436:26 October 2410:26 October 2384:26 October 2358:26 October 2332:26 October 2306:26 October 2280:26 October 2254:26 October 1598:References 1558:SH 23 ends 1544:SH 22 1514:SH 39 1495:Ōtorohanga 1487:SH 39 1473:Whatawhata 1452:SH 1C 1437:SH 1C 269:SH 39 265:Whatawhata 257:SH 1C 251:suburb of 225:SH 23 208:SH 24 193:SH 22 111:Whatawhata 107:SH 39 86:SH 1C 2194:14 August 1617:14 August 1542:Formerly 1376:Metalling 1353:metalling 319:Location 277:Waitetuna 2556:National 1586:See also 1575:terminus 1538:Waingaro 1516:north – 1491:Pirongia 1489:south – 1454:south – 1441:Auckland 1439:north – 1421:Hamilton 1394:Location 327:Dinsdale 261:Dinsdale 253:Frankton 249:Hamilton 237:Hamilton 132:Location 90:Hamilton 2107:. 2015. 2032:15 July 1989:22 June 1347:History 227:) is a 137:Country 3099:SH 73A 3079:SH 57A 3069:SH 50A 3064:SH 49A 3059:SH 47A 3039:SH 15A 1706:5 July 1674:5 July 1528:Raglan 1316:Safety 1299:Te Uku 1273:Karioi 1252:12334 1249:11976 1230:13764 1227:14093 1208:12676 1205:13004 1186:11854 1183:12851 1164:11928 1161:12257 1142:11008 1139:11805 1120:10711 1117:11360 1098:10842 1095:11190 1076:10402 1073:11459 1054:10037 1051:10898 1032:10696 1029:10967 1010:10389 1007:11414 988:10360 985:12931 966:11001 963:13004 941:12512 922:10365 919:12419 900:10220 897:12480 878:10000 875:12610 853:12260 831:12930 285:Raglan 281:Te Uku 233:Raglan 122:Raglan 64:Length 3114:SH 92 3109:SH 91 3104:SH 89 3094:SH 72 3089:SH 70 3084:SH 61 3074:SH 52 3054:SH 40 3049:SH 36 3044:SH 17 3034:SH 15 3029:SH 2B 3024:SH 2A 3019:SH 1F 3014:SH 1A 2998:SH 99 2993:SH 98 2988:SH 97 2983:SH 96 2978:SH 95 2973:SH 94 2968:SH 93 2963:SH 90 2958:SH 88 2953:SH 87 2948:SH 86 2943:SH 85 2938:SH 84 2933:SH 83 2928:SH 82 2923:SH 80 2918:SH 79 2913:SH 78 2908:SH 77 2903:SH 76 2898:SH 75 2888:SH 73 2883:SH 71 2878:SH 69 2868:SH 65 2863:SH 63 2858:SH 62 2853:SH 60 2835:SH 59 2830:SH 58 2825:SH 57 2820:SH 56 2815:SH 54 2810:SH 53 2805:SH 51 2800:SH 50 2795:SH 49 2790:SH 48 2785:SH 47 2780:SH 46 2775:SH 45 2770:SH 44 2765:SH 43 2760:SH 41 2755:SH 39 2750:SH 38 2745:SH 37 2740:SH 36 2735:SH 35 2730:SH 34 2725:SH 33 2720:SH 32 2715:SH 31 2700:SH 28 2695:SH 27 2690:SH 26 2680:SH 24 2675:SH 23 2670:SH 22 2665:SH 21 2655:SH 18 2650:SH 16 2645:SH 15 2640:SH 14 2635:SH 12 2630:SH 11 2625:SH 10 2146:(PDF) 2125:(PDF) 2101:(PDF) 2008:(PDF) 1963:(PDF) 1946:(PDF) 1929:(PDF) 1912:(PDF) 1895:(PDF) 1878:(PDF) 1861:(PDF) 1844:(PDF) 1827:(PDF) 1810:(PDF) 1793:(PDF) 1776:(PDF) 1759:(PDF) 1742:(PDF) 1725:(PDF) 1700:(PDF) 1693:(PDF) 1665:(PDF) 1456:Taupō 1410:Notes 1261:4917 1258:8127 1255:6649 1239:5177 1236:8287 1233:6686 1217:4238 1214:7393 1211:6396 1195:4775 1192:7525 1189:6370 1173:4758 1170:7522 1167:6274 1151:4102 1148:6350 1145:5743 1129:3628 1126:6429 1123:5621 1107:3655 1104:6013 1101:4995 1085:3745 1082:6235 1079:5301 1063:3508 1060:6786 1057:4745 1041:3731 1038:6452 1035:5355 1019:3713 1016:6328 1013:4893 997:3463 994:6048 991:4642 975:3662 972:6284 969:5110 953:3517 950:5918 947:4995 944:9720 931:3578 928:5771 925:4968 909:3560 906:5910 903:5060 887:2990 884:5640 881:4980 865:3050 862:5340 859:4710 856:9450 843:2910 840:5270 837:4650 834:9730 821:2850 818:4720 815:4380 812:9760 800:2710 795:4380 781:2450 776:3970 773:5720 727:2350 722:3700 704:3650 690:1900 685:3100 671:1670 666:3000 652:1600 647:2100 633:1750 628:3190 614:1760 609:2750 595:1520 590:2450 566:1987 561:1480 556:2370 525:1070 520:1660 506:2250 501:1320 487:1050 482:1290 468:1000 463:1800 444:1650 430:1100 425:1700 411:1100 375:1030 368:3050 356:1070 349:3130 243:Route 2583:SH 5 2578:SH 4 2568:SH 2 2438:2019 2412:2019 2386:2019 2360:2019 2334:2019 2308:2019 2282:2019 2256:2019 2230:2017 2196:2015 2175:2016 2084:2016 2059:2016 2034:2022 1991:2021 1708:2016 1676:2016 1648:2021 1619:2015 1245:2020 1223:2019 1201:2018 1179:2017 1157:2016 1135:2015 1113:2014 1091:2013 1069:2012 1047:2011 1025:2010 1003:2009 981:2008 959:2007 937:2006 915:2005 893:2004 871:2003 849:2002 827:2001 806:2000 787:1999 767:1998 750:1997 733:1996 714:1995 696:1994 677:1993 658:1992 639:1991 620:1990 601:1989 582:1988 548:1986 531:1985 512:1984 493:1983 474:1982 455:1981 449:980 436:1980 417:1979 399:1978 393:830 381:1977 362:1976 343:1975 235:and 173:List 1428:0.0 3192:: 2428:. 2402:. 2376:. 2350:. 2324:. 2298:. 2272:. 2246:. 2221:. 2166:. 2148:. 2127:. 2113:^ 2103:. 2075:. 2050:. 2024:. 1982:. 1971:^ 1667:. 1638:. 1627:^ 1493:, 1403:mi 1398:km 1343:. 1335:A 239:. 200:→ 185:← 2523:e 2516:t 2509:v 2496:) 2440:. 2414:. 2388:. 2362:. 2336:. 2310:. 2284:. 2258:. 2232:. 2198:. 2177:. 2152:. 2086:. 2061:. 2036:. 1993:. 1965:. 1948:. 1931:. 1914:. 1897:. 1880:. 1863:. 1846:. 1829:. 1812:. 1795:. 1778:. 1761:. 1744:. 1727:. 1710:. 1678:. 1650:. 1621:. 1425:0 223:( 20:)

Index

New Zealand State Highway 23
State Highway 23 shield}}
NZ Transport Agency
SH 1C
Hamilton
SH 39
Whatawhata
Raglan
New Zealand
New Zealand state highways
Motorways and expressways
List
SH 22
SH 24
New Zealand state highway
Raglan
Hamilton
Hamilton
Frankton
SH 1C
Dinsdale
Whatawhata
SH 39
Waipā River
Waitetuna
Te Uku
Raglan

Average annual daily traffic
NZ Transport Agency

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