China National Highway 666

National Highway 666
National Highway 666
666国道
Route information
Length	141 km (88 mi)
Major junctions
From	Jingtai County, Gansu
To	Lanzhou, Gansu
Location
Country	China
Highway system
	National Trunk Highway System; Primary; Auxiliary;

Length141 km (88 mi)

FromJingtai County, Gansu

ToLanzhou, Gansu

CountryChina

China National Highway 666, also known as the Jingtai-Lanzhou Highway, is a national highway in China, which connects Jingtai County and Lanzhou in Gansu.^[1] The highway is 141 km (88 mi) long.^[2]

[1]

[2]

v t e China National Highways (CNH)
Radial	G101 G102 G103 G104 G105 G106 G107 G108 G109 G110 G111 G112
North–south	G201 G202 G203 G204 G205 G206 G207 G208 G209 G210 G211 G212 G213 G214 G215 G216 G217 G218 G219 G220 G221 G222 G223 G224 G225 ~~G226~~ G227 ~~G228~~
East–west	G301 G302 G303 G304 G305 G306 G307 G308 G309 G310 G311 G312 ~~G313~~ G314 G315 G316 G317 G318 G319 G320 G321 G322 G323 G324 G325 G326 G327 G328 G329 G330
Extended plan in 2013 under construction/renovation	G228 G229 G230 G231 G232 G233 G234 G235 G236 G237 G238 G239 G240 G241 G242 G243 G244 G245 G246 G247 G248 G331 G332 G333 G334 G335 G336 G337 G338 G339 G340 G341 G342 G343 G344 G345 G346 G347 G348 G349 G350 G351 G352 G353 G354 G355 G356 G357 G358 G359 G360 G361 G501 G502 G503 G504 G505 G506 G507 G508 G509 G510 G511 G512 G513 G514 G515 G516 G517 G518 G519 G520 G521 G522 G523 G524 G525 G526 G527 G528 G529 G530 G531 G532 G533 G534 G535 G536 G537 G538 G539 G540 G541 G542 G543 G544 G545 G546 G547 G548 G549 G550 G551 G552 G553 G554 G555 G556 G557 G558 G559 G560 G561 G562 G563 G564 G565 G566 G567 G568 G569 G570 G571 G572 G573 G574 G575 G576 G577 G578 G579 G580 G581
Extended in 2022 under planning	G601 G602 G603 G604 G605 G606 G607 G608 G609 G610 G611 G612 G613 G614 G615 G616 G617 G618 G619 G620 G621 G622 G623 G624 G625 G626 G627 G628 G629 G630 G631 G632 G633 G634 G635 G636 G637 G638 G639 G640 G641 G642 G643 G644 G645 G646 G647 G648 G649 G650 G651 G652 G653 G654 G655 G656 G657 G658 G659 G660 G661 G662 G663 G664 G665 G666 G667 G668 G669 G670 G671 G672 G673 G674 G675 G676 G677 G678 G679 G680 G681 G682 G683 G684 G685 G686 G687 G688 G689 G690 G691 G692 G693 G694 G695 G696 G697 G698 G699 G700 G701
Major routes (abolished and absorbed into NTHS)	G010 G1011 G1 (Shenyang-Harbin Section) G15 (Shenyang-Shanghai) G1503 (West Ring) G15 (Shanghai-Haikou) G98 (Haikou-Sanya Section) G020 G3 G030 G4 (Beijing-Zhuhai Section) G040 G55 (Erenhot-Taiyuan Section) G5 G80 (Kunming-Kaiyuan Section) G8011 G050 G75 G015 G10 G025 G1113 G1 (Beijing-Shenyang Section) G6 G035 G20 G045 G30 G055 G42 G065 G60 G56 (Hangzhou-Ruili Section) G075 G72 (Hengyang-Nanjing Section) G80 (Nanning-Baise Section) G78 (Baise-Kunming Section)
Note	_{China National Highway 112 runs around Beijing Before 2013, Mainland China observed National Highway 228 as Taiwan Ring, composed of several National Expressway (Republic of China) and Taiwan provincial highways, this designation is not recognized by Republic of China (Taiwan). This observation was eventually dropped in new National Highway plans, replaced by Dandong-Dongxing Highway. A extension plan of the highway system was announced in 2013, including extension of existing highways(101-112, 201-227, 301-330) and new highways (North-South 228-248, East-West 331-361, Connections 501-581). Only small portions of them needs to be constructed from scratch; most of the new highways would be upgraded provincial/county highways. Another extension plan was announced in 2022, including new small purpose connection highways (601-701).}

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