John Hennessy III,
P.E.
NATIONAL COOPERATIVE HIGHWAY RESEARCH PROGRAM Chapter 1: Background Optimal performance of a bridge under normal service loads is essential for full and effective use by the motoring public. Problems that occur as a result of excessive deflections, deteriorating deck conditions, or fatigue cracking of steel girders or beams under normal operating service loads can cause […]
View this complete post...An update on the St. Croix Crossing construction this week has concrete mixers floating across the river on barges. – rfilipczak on YouTube
View this complete post...Both directions of SH-33 in Guthrie were temporarily closed at the Cottonwood bridge just west of US-77 due to a pop-up – or heat-related buckle on Thursday, August 2nd. ODOT inspectors and crews took immediate action and the bridge was repaired and reopened on August 3rd at 4 p.m. – OklaDOT on YouTube
View this complete post...This video features vintage footage of the building of the New River Gorge Bridge, along with interviews with people who were there during construction. –bridgedaywv on YouTube.
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ALLIANCE FOR AMERICAN MANUFACTURING
The 21st century risk environment is creating an alarming trend in which the hyper-consequential, “500-year” event is occurring with greater frequency. Hurricanes, tornadoes, flooding, wildfires, earthquakes and tsunamis, as well as acts of terrorism and other man-made disasters, stand as constant reminders of the potential for significant and prolonged disruptions in our daily lives.
Hennepin County’s Lowry Avenue Bridge over the Mississippi River in Minneapolis, Minnesota, will open in the Fall of 2012. Shot over two days in October 2011, this time lapse video is composed of 11,000+ photos. The precast edge girders were built on site, moved by barge, and lifted into place. Each girder is approximately 155 […]
View this complete post...Stillwater Lift Bridge operator, Randy St. Ores, talks about his duties running the bridge on the 4pm-12am shift. – rfilipczak on YouTube.
View this complete post...The project involves replacing the concrete viaducts where the Purple Line crosses Greenleaf, Dempster and Grove Streets in Evanston with new steel structures, as well as new abutments, retaining walls, foundations, and new waterproofing and drainage systems. The project also includes rail tie replacement, new landscaping and lighting enhancements under the bridges. The new bridge […]
View this complete post...WSDOT and contractor crews closed the SR 520 floating bridge and highway July 13–16, 2012, to tackle an array of jobs, including demolition of the old 84th Avenue Northeast overpass and the last remaining piece of the old 92nd Avenue Northeast overpass, both seen in this video segment. Overpass demolition made way for new lidded […]
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