The Sacramento Bee » Check out how engineering lifts a freeway overpass to accommodate taller truck loads.
This is what Oroville Dam spillway looks like mid-February 2018
The Sacramento Bee » A gaping hole was discovered in the Oroville Dam main spillway on Feb. 7, 2017, marking the start of a crisis that eventually led to the evacuation of 188,000 downstream residents. A little over a year later, work continues between the emergency spillway weir and cut-off wall, prepping the ground for the splashpad.
‘Zipper’ truck builds tunnels
Tech Insider » Traditionally, building tunnels is a lengthy and tedious process. Lock-Block Ltd, a construction material production company, has introduced an innovative system to make quick and durable tunnels that can be used as pedestrian passageways, wine cellars, shelters, and more.
Conveyor bridge transporting materials over roadway on Cal. Route 180 project
Equipment World » In the video below, Sam Yniguez, a public information officer with Caltrans, highlights a conveyor system bridge that will be used on the Kings Canyon Road (State Route 180) project in eastern Fresno County.
Demolition of Old Bay Bridge Completed
CBS San Francisco / Bay Area » Demolition of the marine foundations of the San Francisco-Oakland Bay Bridge’s old eastern span.
Key Bridge Construction Phase in New High-speed Rail Route Completed in China’s Yunnan
CCTV » A key joint of the Longchuanjiang River Bridge of the new Chengdu-Kunming high-speed railway was rotated into position on Tuesday afternoon, marking another breakthrough for China’s railway bridge construction.
See how Oroville dam spillway transformed from May-November in two minutes
The Sacramento Bee » This compilation of drone footage from May 20, 2017 through November 1, 2017 highlights the transformation of Lake Oroville’s main spillway during repairs.
Washington Department of Transportation » Get a drone’s-eye view — two miles in two minutes — under downtown Seattle to see the progress on the city’s double-decker underground highway.
The Sacramento Bee » In this flyover showing the continuing repair work on the dam’s spillway, you can see just how enormous the structure is. Repairs are expected to exceed $500 million.
University of Nevada, Reno » Mimicking the large ground motions of the deadly and damaging 1994 Northridge, California earthquake but amplified to a magnitude 7.5., the 100-ton, 70 foot long bridge was sitting on three large shake tables in the University of Nevada, Reno Earthquake Engineering Laboratory. The demonstration was the first large-scale bridge model to test five principles and techniques of accelerated bridge construction combined in one bridge model.
Washington State Department of Transportation » As the front section of the giant SR 99 tunneling machine Bertha is cut and lifted from a disassembly pit, crews are hard at work disassembling the back end of the machine through the new tunnel. This short time lapse condenses more than a month’s work into less than 30 seconds.
Caltrans News Flash » Take this behind the scenes tour at the XKT Engineering Plant in Vallejo, CA where girders are fabricated for the new Pfeiffer Canyon Bridge on State Route 1 in Monterey County.
Washington State Department of Transportation »The inner-workings of the SR 99 tunneling machine Bertha are now fully visible from the camera above the pit where disassembly continues. This brief time-lapse video shows what seven weeks of nearly non-stop work looks like as workers dismantle the five-story-tall tunneling machine.
Robert Reich » The Trump administration, determined to overhaul and modernize the nation’s infrastructure, is planning to privatize public assets such as airports, bridges, highway rest stops and other facilities, according to top officials and advisers. In his proposed budget released Tuesday, Trump called for spending $200 billion over 10 years to “incentivize” private, state and local spending on infrastructure.
Futurism » By adding steel wool to the binding agent in asphalt, developers at Delft University of Technology say they have created a material that will make roads self-repairing.
KIRO7 » Tunnel-borer Bertha may complete drilling the State Route 99 tunnel in Seattle this week after four years of work, state officials reported. The tunnel should be in use by 2019, replacing the Alaskan Way Viaduct.
Caltrans News Flash » Go behind-the-scenes as Caltrans removes a dozen boulders that fell onto State Route 78 in northern San Diego County.
Commercial Carrier Journal » The truck is the product of a partnership between the Swedish automaker and the U.S. Department of Energy to boost freight delivery efficiency by 50 percent.
The Sacramento Bee » A 1990s documentary uses archival footage to detail the construction of the Oroville Dam, an earthfill embankment dam on the Feather River east of the city of Oroville, California, in the United States that was built during the period of 1961 to 1968.
The Sacramento Bee » It was all systems go for the second round of implosions at the old Antlers Bridge in Lakehead, California.
Redheaded Blackbelt » Video of yet another landslide on California Highway 299.
Associated Press » Demolition crews triggered explosives to bring down a bridge in Little Rock, Arkansas, but the structure’s arch and bridge deck remained upright.
TheJournal.ie » The Beipanjiang Bridge in China’s Guizhou province was completed on September 10, 2016 after three years of construction. The bridge is now the highest in the world at 565 meters (1,853 feet) above ground and spans 1,341 meters (4,399 feet) connect the Guizhou and Xuanwei provinces, shortening the travel time from 5 hours to less than 2 hours.
Geekwire » Seattle Tunnel Partners (STP) has released a video of construction crews performing routine maintenance on Bertha, the tunnel boring machine, which includes power washing the cutting head and replacing cutting tools that weight 75 pounds each. Bertha is outfitted with 700 cutting tools (or teeth). During this maintenance stop STP has inspected 400 teeth, replacing 25.
gCaptain » Nine years in the making, the Panama Canal Expansion opened on June 26, 2016. This time-lapse video shows the five years of construction on the Third Set of Locks (“Neopanamax” locks). The new locks will allow show ship than twice the current limit to pass through the Panama Canal.
GeekWire » The Washington State Department of Transportation (WSDOT) takes viewers on a behind the scenes construction tour of the new double-deck State Route 99 tunnel. WSDOT’s Deputy Administrator explains how the tunnel boring machine, known as Bertha, works to dig through the ground and place concrete rings to form the tunnel wall as she goes. Watch as the tunnel takes shape and construction crews build the framework and pour concrete for the roadway. It is estimated the new tunnel will use enough concrete to fill nine football stadiums.
EarthCam » Witness more than 42,000 hours of construction in just 4 minutes with this official time-lapse movie of the San Francisco-Oakland Bay Bridge.