Remember: the SAS is a Self-Anchored Suspension bridge, meaning the cables anchor to the bridge...

Remember: the SAS is a Self-Anchored Suspension bridge, meaning the cables anchor to the bridge itself, not to a big anchorage like you see on typical suspension bridges (e.g., the one in the middle of the Bay on the other side of this bridge).

Location
San FranciscoSan Francisco BayOakland Bay Bridge
Photographer
Catherine Hovell
Date taken

Comments

  • I'm not sure I want to ask ... but how does it stay "up"? Sounds like a great big sky hook.

    — Margaret Hovell

  • Not sure what you're asking... A normal suspension bridge has two giant cables (one on either side of the deck) that run from one anchorage (basically, a big heavy thing that won't move, where the cable is locked off), over a tower, down, over a tower, and down to another anchorage. This bridge has no external anchorages, and only has one cable. The cable is anchored on the NE corner of the SAS (pictures later), runs up and over the tower, down to the NW corner, under the bridge deck at the west side, up over the tower, and down to another anchorage in the SE. The tension on the cable is resisted by compression of the deck rather than by a giant external anchorage.

    — Catherine Hovell