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Home » Authors » Tim Newcomb

Articles by Tim Newcomb

Power Sector Limbers Up

Tim newcomb
Tim Newcomb
July 28, 2010
No Comments
Earthquakes, wind and ice can make electric service transmission poles topple like dominoes, costing millions of dollars to replace. Illustration By Walter Konefal div id="articleExtrasA" div id="articleExtrasB" div id="articleExtras" Jon Rouse, a civil engineering professor at Iowa State University, hopes to eliminate that cost by incorporating hinges into the base of poles to deflect stress and bounce the poles back—like Weebles, the 1970s toys that “wobble but don’t fall down.” Currently, the industry relies on sturdy and costly “dead-end structures” every five to 10 miles to block poles from cascading. Rouse’s 110-kv poles, now being tested at the university, eliminate
Read More

Oregon Project Is Case Study for ‘Green’ Road Standards

Aileen cho
Aileen Cho
Tim newcomb
Tim Newcomb
July 22, 2010
No Comments
A highway improvement project that runs through a national park is serving as a test case for formalizing a road rating system similar to the Leadership in Energy and Environmental Design building rating system. Photo: David Evans and Associates The U.S. 97 Lava Butte-South Century Drive project in Oregon may be the first roadway to be officially rated “green.” The 3.8-mile, $16-million U.S. 97 Lava Butte-South Century Drive upgrade in central Oregon runs through the Newberry National Monument. It is the furthest along of three projects the Oregon Dept. of Transportation will evaluate to determine if it will adopt standards
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Oregon Project Is Case Study for ‘Green’ Road Standards

Aileen cho
Aileen Cho
Tim newcomb
Tim Newcomb
July 21, 2010
No Comments
Ahighway improvement project that runs through a national park is serving as a test case for formalizing a road rating system similar to the Leadership in Energy and Environmental Design building rating system. Photo: DEA A road improvement project may be the first to be officially rated “green.” The 3.8-mile, $16-million U.S. 97 Lava Butte-South Century Drive upgrade in central Oregon runs through the Newberry National Monument. It is the furthest along of three projects the Oregon Dept. of Transportation will evaluate to determine if it will adopt standards set by Greenroads, unveiled by the University of Washington and CH2M
Read More

Communication Breakdown Lifts Price of Nalley Valley Ramp

Tim newcomb
Tim Newcomb
July 20, 2010
No Comments
The only way the Washington State Dept. of Transportation can describe building a highway off-ramp in the wrong location: “Unfortunate and embarrassing.” Photo: WSDOT Demolition begins for the fix to a wrongly placed Tacoma, Wash., interchange ramp. Construction reached 90% completion on the eastbound ramp to Sprague Avenue as part of the $119.9-million Nalley Valley interchange that addresses traffic snarl where Interstate 5 meets State Route 16 in South Tacoma before the problem surfaced. Tearing out a portion of the ramp and changing the profile for 700 ft begins to right the wrong. Kevin Dayton, WSDOT regional administrator, says this
Read More

Lasting Solution Eludes Team Facing Out-of-Plumb Bents

Tim newcomb
Tim Newcomb
July 14, 2010
No Comments
Causes and solutions are proving elusive on an Oregon bridge project in which two bents moved out of plumb during construction. Last winter, the trouble was noticed on the $215-million U.S. 20 Pioneer Mountain-Eddyville highway near the Oregon coast. Joe Squire, project manager for the Oregon Dept. of Transportation, says a lateral load from adjacent fill and subsurface ground pressure may have caused the shifts in two of the 20 bents on the 10-bridge project. The project consists of a six-and-a-half mile section of new road that bypasses a 10-mile stretch of substandard highway. Six of the 10 bridges are
Read More

Communication Breakdown Lifts Price of Tacoma Ramp

Tim newcomb
Tim Newcomb
July 14, 2010
No Comments
The Washington State Dept. of Transportation describes the highway off-ramp improperly built on a new interchange in east Tacoma as “unfortunate and embarrassing.” It’s also expensive. A change order for nearly $900,000 —out of the project’s contingency fund at the cost of WSDOT—was worked out with project contractor Guy F. Atkinson Construction. The Broomfield, Colo.-based contractor already has started removing retaining-wall panels to flatten the ramp, which was mistakenly built at the wrong grade. Photo: WSDOT Demolition begins for the fix to a wrongly placed Tacoma, Wash., interchange ramp. The eastbound ramp of the $119.9-million Nalley Valley interchange—at which Interstate
Read More

Solutions Elude Project Team On Oregon Bridge

Tim newcomb
Tim Newcomb
July 9, 2010
No Comments
Causes and solutions prove elusive on an Oregon bridge project where two bents moved out of plumb during construction. The troubled was noticed in the winter on the $215 million U.S. 20: Pioneer Mountain-Eddyville highway near the Oregon coast. Joe Squire, project manager for the Oregon Department of Transportation, says that a lateral load from adjacent fill and sub-surface ground pressure may have caused the shifts in two of the 20 bents on the 10-bridge project. The project consists of a six-and-a-half mile section of new road that bypasses a 10-mile stretch of substandard highway. Six of the 10 bridges
Read More

Temporary Stadium From Kit of Reused Parts

Tim newcomb
Tim Newcomb
June 25, 2010
No Comments
Vancouver, B.C., residents better not fall too deeply in love with the 27,500-seat Empire Field, which is on course for a June 20 completion. The stadium, built to host the Canadian Football League’s BC Lions while the team’s current home, BC Place, is under renovation, will only exist in its current form until November of next year. Then, like recyclable scaffolding, North America’s first-known temporary stadium for professional football—constructed from some 15,000 parts shipped from Switzerland in 70 containers—will be dismantled and shipped home, where it will be reincarnated as another temporary sports facility. Photo: Courtesy of BC Pavilion Corp
Read More

Test Pontoon Prepares Team for Real-Time Construction

Tim newcomb
Tim Newcomb
June 25, 2010
No Comments
The Washington State Dept. of Transportation is creating a list of best construction practices for floating bridges, based on results of tests conducted on a pontoon built at one-sixth the typical size. The best practices will be used by the design-build team that won the contract to build new pontoons for the state Route 520 Evergreen Point Floating Bridge. At 2,285 meters, SR 520's bridge is the longest of its kind in the world. Photos: WSDOT Engineers run curing tests on a scale-model pontoon at a yard near Olympia, Wash., in an attempt to minimize cracks. Photos: WSDOT Engineers run
Read More

Redesign Launches Canadian Crossing

Tim newcomb
Tim Newcomb
June 16, 2010
No Comments
Construction is set to begin this month on a 1,045-meter-long bridge over the Mackenzie River near Fort Providence in Canada’s Northwest Territories—a project that required a substantial redesign, adding $18 million to the total cost. The new superstructure design had to be integrated with the original approved substructure design. Photo: Rendering: Infinity Engineering A redesign of a new Canadian crossing reduced the amounts of concrete and steel needed. An independent design review team of San Francisco-based T.Y. Lin International and Edmonton, Alberta-based BP Tech Engineering found to be substandard the design by Calgary-based Spronken JR and Associates Ltd. The territories’
Read More
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