Name Location Year Comment A-7000 (previously C-345) Málaga -Colmenar road, Spain 2 spiral tunnels at 36°46′33″N 4°22′46″W / 36.775796°N 4.379339°W / 36.775796; -4.379339 A6 Highway Italy 44°19′13″N 8°22′38″E / 44.320409°N 8.377118°E / 44.320409; 8.377118 Antirio to Lamia highway (E65) Greece on the climb of Mount Parnassos to Delphi, Greece. 270° spiral using an overpass. Astoria–Megler Bridge south approach (U.S. Route 101 ) Astoria, Oregon , United States 46°11′15″N 123°51′12″W / 46.187590°N 123.853260°W / 46.187590; -123.853260 Cahill Expressway Sydney , New South Wales , Australia. Spiral turns left in order to turn right. Caiyuanba Bridge South Approach Chongqing , China 29°32′10″N 106°33′05″E / 29.5360605°N 106.551513°E / 29.5360605; 106.551513 Canal Road Flyover Victoria City , Hong Kong 22°16′54″N 114°10′48″E / 22.2816003°N 114.1800447°E / 22.2816003; 114.1800447 Corkscrew Bridge, Old East Entrance Road, Yellowstone National Park (abandoned)[ 1] Wyoming , United States 1904, 1919 44°27′36″N 110°07′03″W / 44.460000°N 110.117500°W / 44.460000; -110.117500 Eastern Harbour Crossing Victoria City , Hong Kong 22°17′19″N 114°12′46″E / 22.2886114°N 114.2126683°E / 22.2886114; 114.2126683 G329 South Bridge Approach Shaoxing , China 30°01′19″N 120°43′51″E / 30.0218999°N 120.7308062°E / 30.0218999; 120.7308062 G4011 Runyang Yangtze River Bridge Shiye Exit Zhenjiang , China 32°13′12″N 119°22′06″E / 32.2201231°N 119.3682047°E / 32.2201231; 119.3682047 General Artigas Bridge Uruguay and Argentina From Colón, Entre Ríos , Argentina to Paysandú , Paysandú Department , Uruguay , across the Uruguay river . Cantilever bridge with a spiral on the Uruguay side. Huanggang Port Approach Shenzhen , China Isenfluh Bern , Switzerland Jialing Jiahua Bridge Approach Chongqing , China 29°33′38″N 106°31′03″E / 29.5606004°N 106.5174331°E / 29.5606004; 106.5174331 Jinchang Road Bridge Wuxi , China Double loop bridge on each approach 31°33′24″N 120°19′51″E / 31.556633°N 120.330889°E / 31.556633; 120.330889 Kawazu-Nanadaru Loop Bridge Kawazu , Japan 1981 Double loop bridge. 34°47′28″N 138°56′17″E / 34.791°N 138.938°E / 34.791; 138.938 Lincoln Tunnel Helix (New Jersey Route 495 ). Weehawken, New Jersey , United States 40°46′01″N 74°01′17″W / 40.767037°N 74.021383°W / 40.767037; -74.021383 Mizukami Loop Bridge Mizukami, Kumamoto , Japan 32°18′54″N 131°00′36″E / 32.315°N 131.01°E / 32.315; 131.01 N8 Bypass Brienzwiler Switzerland 46°45′02″N 8°06′32″E / 46.750521°N 8.108833°E / 46.750521; 8.108833 Nanpu Bridge Puxi Approach Puxi , Shanghai , China 2004 Nansha Bridge Hai'ou Exit Guangzhou , China Interchange made of ramps from spiraling up to the Nansha Bridge. 22°53′21″N 113°32′36″E / 22.889226°N 113.543465°E / 22.889226; 113.543465 New Clear Water Bay Road New Kowloon , Hong Kong 22°19′54″N 114°13′29″E / 22.331717°N 114.224617°E / 22.331717; 114.224617 Prefectural Road 53 Onawaba Bridge east approach [ja ] Gifu , Japan 35°25′24″N 136°44′41″E / 35.423410°N 136.744817°E / 35.423410; 136.744817 Rongqiao Road Spiral Bridge Chongqing , China Triple Loop Bridge 29°31′35″N 106°32′42″E / 29.5262731°N 106.5449174°E / 29.5262731; 106.5449174 Route de Cilaos Réunion 21°10′52″S 55°27′17″E / 21.181180°S 55.454704°E / -21.181180; 55.454704 S232 Bridge South Approach Changzhou , China 31°42′57″N 120°04′05″E / 31.715834°N 120.068168°E / 31.715834; 120.068168 Sa Calobra Majorca , Spain 39°49′55″N 2°48′57″E / 39.831968°N 2.81574°E / 39.831968; 2.81574 Sembon Matsu Bridge Approaches Osaka , Japan Double loop bridge on each approach 34°37′57″N 135°28′33″E / 34.6324803°N 135.4759645°E / 34.6324803; 135.4759645 Shinkizugawao Bridge North Approach Osaka , Japan 34°37′32″N 135°27′45″E / 34.6255471°N 135.4625174°E / 34.6255471; 135.4625174 |34°37′43″N 135°27′45″E / 34.62866°N 135.4623977°E / 34.62866; 135.4623977 South Dakota Highway 87 in Wind Cave National Park [ 2] South Dakota , United States 1930s 43°36′04″N 103°29′40″W / 43.601215°N 103.494340°W / 43.601215; -103.494340 SP99 just north of Bolzano Italy Named Schneckentunnel, German for snail tunnel Steinmen Crossing on Oregon Highway 273 , part of Historical U.S. Highway 99 through the Siskiyou Mountains Oregon , United States 42°05′32″N 122°35′22″W / 42.092091°N 122.589541°W / 42.092091; -122.589541 Tianmen Shan Big Gate Road, Tianmen Mountain National Park (2 bridges) Hunan , China 29°03′15″N 110°29′00″E / 29.05424°N 110.48344°E / 29.05424; 110.48344 29°03′56″N 110°28′56″E / 29.06547°N 110.48211°E / 29.06547; 110.48211 Tianxingzhou Yangtze River Bridge Tianxingzhou Exit Wuhan , China 30°40′28″N 114°23′16″E / 30.674541°N 114.387798°E / 30.674541; 114.387798 Thames Tunnel (planned, not constructed) England 1825-1843 Originally planned to have an underground spiral giving access to road traffic, but this was never built.[ 3] The Loop Over Bridge, on U.S. Route 441 between Gatlinburg, Tennessee, and Cherokee, North Carolina, at Bearpen Hollow in the Great Smoky Mountains National Park [ 4] Tennessee , United States[ 5] 35°38′06″N 83°27′58″W / 35.635036°N 83.466047°W / 35.635036; -83.466047 Three bridges on Iron Mountain Road /U.S. Route 16A South Dakota , United States 1930s Known locally as "pigtail bridges" From south to north:43°51′43″N 103°26′15″W / 43.861849°N 103.437623°W / 43.861849; -103.437623 43°52′10″N 103°26′08″W / 43.869383°N 103.435572°W / 43.869383; -103.435572 43°52′30″N 103°26′22″W / 43.874979°N 103.439530°W / 43.874979; -103.439530 U.S. Route 61 across Spiral Bridge at Hastings High Bridge Hastings, Minnesota , United States 1895-1951 former location: Approximately 44°44′42″N 92°51′11″W / 44.745137°N 92.853034°W / 44.745137; -92.853034 Weidun Road Bridge Changzhou , China 31°43′22″N 120°03′35″E / 31.722803°N 120.059752°E / 31.722803; 120.059752 Wiadukt Stanisława Markiewicza Warsaw , Poland 1904 In Ulica Karowa which connects Krakowskie Przedmiescie to river level, Yanbai Yellow River Bridge North Approach Lanzhou , China 36°04′44″N 103°52′53″E / 36.0789724°N 103.8814573°E / 36.0789724; 103.8814573 Yurikamome approach to Rainbow Bridge Tokyo , Japan From the mainland. Zhoutouju Tunnel Approach Guangzhou , China 23°05′55″N 113°15′07″E / 23.0985181°N 113.2520531°E / 23.0985181; 113.2520531 Zuidweg Bridge Zoetermeer , Netherlands 52°02′51″N 4°28′31″E / 52.047468°N 4.475218°E / 52.047468; 4.475218