This is an image set within the Bridgemeister collection.
Bridge: | Wilderness Park Cable-stayed Footbridge |
Location: | Lincoln, Nebraska, USA - Salt Creek |
Coordinates: | 40.7062 N 96.69173 W |
Maps: | Acme, GeoHack, Google, OpenStreetMap |
Image Set Contributor: | Patrick S. O'Donnell |
Related Image Lists: | All from Patrick S. O'Donnell All in Nebraska All in USA All Cable-stayed Bridges |
Credit: | All photos by Patrick S. O'Donnell. Please do not reuse without permission. |
Patrick writes: "This is a self-anchored cable-stayed footbridge. The towers are arched in toward mid-span. In addition to the cable stays (sixth photo) there's a main cable on each side of the bridge that runs from the tower's summit (fifth photo) down the length of the tower (seventh photo) to a pulley (eighth photo) then the length of the bridge (ninth photo) to the opposing tower and up to it's summit. In principal when the deck receives its live load, the towers flex inward on it's pivot (eighth photo, left side) due to the pull on the stays. By the towers flexing inward it causes the main cable to stretch thus counteracting the force applied onto the deck. Another way to look at it is its inverse. The main cable is stretched under the weight of the deck and live load, pulling the towers up and outward and thus pulling on the cable stays to counteract the load on the deck. The bridge seemed quite sturdy to me after jumping up and down and shifting my weight from side to side."
Update: This bridge failed in July 2010 with 20 children on the deck. The bridge buckled significantly, but did not collapse. No one was seriously hurt.