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Spiral Bridge
CHF 42.70
Auf Lager
SKU
C0L2C04M5GG
1 Verfügbar 
Geliefert zwischen Di., 03.02.2026 und Mi., 04.02.2026
Details
A spiral bridge, loop bridge, or pigtail bridge is a road bridge which loops over its own road, allowing the road to climb rapidly. This is useful in steep terrain, or where the approach road to a bridge would terminate too far from the bridge's end. In the Black Hills of South Dakota, a particular form of spiral bridge, locally called a 'pigtail bridge' was introduced in 1932 by Cecil Clyde Gideon, the self-taught superintendent of Custer State Park turned highway designer. He called them spiral-jumpoffs . During the planning for Iron Mountain Road, there was a need to negotiate sudden elevation drops while preserving natural features for this scenic highway; the corkscrew design allowed for a spectacular - although expensive - solution to this problem. In order to blend the bridges with their surroundings, natural materials such as local timber were used.
Weitere Informationen
- Allgemeine Informationen
- Titel Spiral Bridge
- ISBN 978-613-7-96881-9
- Format Kartonierter Einband (Kt)
- EAN 9786137968819
- Jahr 2011
- Größe H220mm x B220mm
- Untertitel Bridge
- Herausgeber RUPT
- Editor Saul Eadweard Helias
- Auflage Aufl.
- Genre Kunst
- Anzahl Seiten 100
- GTIN 09786137968819
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