catwalk. With the exception of those on top of railroad cars, catwalks are equipped with railings or handrails. In developing countries Since the early 1980s, several charities have developed standardized footbridge designs that are sustainable for use in developing countries. The first charity to develop such designs was Helvetas, located in Zurich, Switzerland. Designs that can be sustainably and efficiently used in developing countries are typically made available to the public gratis. Long footbridges The record for the longest footbridge in the world was claimed by then New York State Governor David Paterson in an Oct. 3, 2009 Poughkeepsie Journal article about The Walkway Poughkeepsie Bridge across the Hudson River at Poughkeepsie, New York. On July 22, 2017, the Champlain Bridge Ice Structure (, a bridge built for bicycles and foot traffic only to parallel the Champlain Bridge from Brossard, Quebec west to Nun's Island (L'ile Des Soeurs) & the Island of Montreal, was measured by a calibrated device as being 7,512 feet (2,292 meters) long or 1.4227 miles or 2.292 km, starting and ending where the treadway rises above the ground and a pedestrian could access the bridge as close as possible to the St Lawrence River. Sky Bridge 721, the longest pedestrian suspension bridge, which spans in the Králický Sněžník mountain in the Czech Republic, opened in May 2022. The bridge hangs above ground. The United Wholesale Mortgage Pedestrian Bridge in Pontiac, Michigan is the longest enclosed pedestrian bridge, completed on October 1, 2021. The 305 metre bridge was part of a $250 million project to UWM's offices, which converted a former warehouse and utilized shipping containers for offices, corridors, and other spaces. The Walkway Over The Hudson footbridge was originally built for trains, it was recently restored as a pedestrian walkway. The footbridge has a total length of . Before it was demolished in 2011, the Hornibrook Bridge which crossed Bramble Bay in Queensland, Australia was longer than the Poughkeepsie Bridge at . Other footbridges Bank Bridge and the Bridge of Four Lions in Saint Petersburg Big Dam Bridge between Little Rock and North Little Rock, Arkansas Big Four Bridge between Louisville, Kentucky and Jeffersonville, Indiana Capilano Suspension Bridge in British Columbia Central Elevated Walkway, an extensive network of footbridges in Central, Victoria City, Hong Kong Chain of Rocks Bridge near St. Louis, Missouri Corktown Footbridge in Ottawa Davenport Skybridge in Davenport, Iowa Dunlop Bridge at the