Construction and progress of the BART (Bay Area Rapid Trasit) subway and interurban train system in the San Francisco bay area in the 1967-68 to provide safe, fast, mass transit, eliminating traffic congestion. Shows great Bay scenery and city views. – Bell99TV on YouTube
View this complete Show Us Your Infra! submission...Show Us Your Infra!
Tacoma, WA: Pontoon Bridge Float-Out
Posted by Infra on Thursday, February 7th, 2013The second cycle of six pontoons for a replacement State Route 520 floating bridge were towed out of the Concrete Technology Corporation casting basin in Tacoma, Wash., from Jan. 28 to Jan. 31, 2013. In this time-lapse video, crews maneuver a large T-pontoon into position to add the additional floatation needed to tow the supplemental […]
View this complete Show Us Your Infra! submission...Detecting Flood Risks in Levees
Posted by Infra on Tuesday, February 5th, 2013Two University of Mississippi professors have discovered that chemical differentiations in waters from the sand boils, formed from seepage along levees, may help identify which levee locations are at higher risk of failure. Video produced by Mary Stanton. Additional video provided by Gregg Davidson.
-univms on YouTube
New Orleans, LA: Mat Sinking on the Mississippi River
Posted by Content Coordinator on Monday, February 4th, 2013The U.S. Army Corps of Engineers provides some preventive maintenance on the Mississippi River in the form of mat sinking to help protect levees and other river structures used to help keep the waterway navigable and reduce the risk of flooding for residents of Louisiana, Jan. 4, 2013. It’s an well-orchestrated process using one of […]
View this complete Show Us Your Infra! submission...Graham Counties, NC: Fontana Dam Opens Gates
Posted by Infra on Thursday, January 31st, 2013Sluicing Fontana Dam opens gates to a bold surge of magnificent force. The spray covers both the parking lot and the trees on the other side of the lake. Icy weather makes for a fine layer of black ice on the driveway into the dam. The road closed initially but opened while we were there. […]
View this complete Show Us Your Infra! submission...Portland, ME: Veterans Memorial Bridge Construction
Posted by Infra on Wednesday, January 30th, 2013Reed & Reed, Inc. replaces one of Maine’s busiest bridges, The Veteran’s Memorial Bridge, over the Fore River between the Cities of Portland and South Portland. This bridge is a precast segmental bridge that is 1,610 ft long and supported by six piers in the river spaced at 250 feet, with shorter approach spans on […]
View this complete Show Us Your Infra! submission...Jenkinsburg, GA: Track Machines in Action
Posted by Infra on Tuesday, January 29th, 2013Part 1: The track gang takes out railroad ties Part 2: Getting the new railroad ties in place Part 3: Get up close & personal with railroad tie replacement Part 4: Keeping everything in its place Part 5: The finishing touches Watch more train videos by pwalpar on YouTube.
View this complete Show Us Your Infra! submission...Portland, OR: Moving the Sellwood Bridge
Posted by Infra on Thursday, January 24th, 2013It’s been there for over 87 years. But on January 19, 2013, the Sellwood Bridge was moved, 20 feet on the East and 60 feet on the West, to form a temporary span while a new bridge is constructed on the site of the old. – Mike Lloyd on YouTube
View this complete Show Us Your Infra! submission...Arizona DOT: Building A Freeway – Prestressed Box Girders
Posted by Infra on Monday, January 21st, 2013Prestressed box girder: a beam made from concrete and steel; prestressed within its elastic limit to counteract stresses that occur under the bridge’s load. Girder size depends on the unique design of a bridge. These girders are 96 feet long and weight 93,000 pounds.
View this complete Show Us Your Infra! submission...Munds Park, AZ: Interchange Project Update
Posted by Infra on Monday, January 21st, 2013    |
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