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Posts Tagged ‘WSDOT’

Effects of Natural Gas Vehicles and Fuel Prices on Key Transportation Economic Metrics

Monday, July 7th, 2014
Figure 1: World, OECD, and U.S. Oil Demand (U.S. EIA, 2012)

WASHINGTON STATE DEPARTMENT OF TRANSPORTATION
This report responds to an inquiry by the State of Washington about the viability of natural gas as an alternative source of energy for transportation. The report is organized around responses to several key research tasks. These tasks are to: 1) Document the increase in supply of natural gas, estimate future price, and availability; 2) Assess the extent to which natural gas is likely to substitute for petroleum; 3) Estimate the extent to which price and performance effects will influence VMT trends in Washington State; 4) Estimate changes in GHG emissions in Washington State attributable to increased use of natural gas; 5) Estimate potential loss of fuel tax revenue attributable to substitution of natural gas for petroleum fuels.

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Seattle, WA: Building Underground Walls to Fix Bertha

Friday, July 4th, 2014
Seattle, WA: Building Underground Walls to Fix Bertha

Raw footage of crews installing one of the 73 intersecting piles that will enclose the 120-foot-deep pit that will allow crews to access and repair Bertha, the SR 99 tunneling machine.

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Washington State: Road Closures for Rock Blasting

Wednesday, June 4th, 2014
Washington State: Road Closures for Rock Blasting

Have you ever wondered what goes on during the rock blasting closures on I-90? This is a montage of rock blasting operations on I-90 from 2013.

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Seattle, WA: Fixing the Tunneling Machine

Wednesday, February 19th, 2014
Seattle, WA: Fixing the Tunneling Machine

This video shows a short clip of a worker replacing a cutting tool inside the SR 99 tunneling machine in January 2014. Crews working for Seattle Tunnel Partners (STP), WSDOT’s contractor for the SR 99 Tunnel Project, changed a number of tools during 158 hours of recent inspections performed under hyperbaric conditions. Tunneling experts now believe that the clogs and other factors contributed to the stoppage of tunneling on Dec. 6, 2013. As the project’s design-build contractor, it is STP’s responsibility to determine the best and most expedient way to resume tunneling.

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Washington State DOT: Ferry Construction Time Lapse

Monday, December 23rd, 2013

The video captures construction of Washington’s newest Olympic Class ferry, 144-car Tokitae, from the start of construction through summer 2013.

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Lake Washington, WA: Coffer Cell Launch

Tuesday, December 10th, 2013
Lake Washington, WA: Coffer Cell Launch

On Nov. 26, 2013, SR 520 bridge construction crews launched a 660-ton coffer cell onto Lake Washington. This coffer cell will be used to create a dry work space so that crews can complete repairs to the end walls of Pontoon U and Pontoon V on Lake Washington.

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State of Washington: Mudslide on SR 20

Tuesday, August 20th, 2013

On August 11, 2013 a severe rainstorm swept through the Cascades causing eight different mudslides to cover the roadway. This particular slide, on milepost 154, is the smallest of the eight. Crews up there said one minute a lane was open and within minutes the roadway was impassible.

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Clyde Hill, WA: Girder Setting Timelapse

Tuesday, August 6th, 2013

Crews working for the Washington State Department of Transportation set concrete girders above SR 520 during four nights in mid-July 2013. This time lapse video captures the coordinated effort by the crane operators and supporting crews to deliver and set the girders above the highway. These girders will support a new lid featuring access to […]

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Renton, WA: Bulldozer pushes rolled over semi on I-405

Friday, June 7th, 2013

WSDOT maintenance crews used a bulldozer to push a rolled over semi out of the way on southbound I-405 in Renton. -wsdot on YouTube.

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Seattle, WA: Building State Route 99

Thursday, May 23rd, 2013

Bertha, the SR 99 tunneling machine, has arrived in Seattle. This short video provides an overview of Bertha’s journey and the work WSDOT is doing to replace the SR 99 Alaskan Way Viaduct. – wsdot on YouTube

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