June 2013

Asphalt

ASPHALT PAVING: Driving on the roof

June 12, 2013
Just west of Washington, D.C., I-66 in Fairfax County, Va., is one of the busiest commuter routes in the country.Between 162,000 and 178,000 vehicles per day travel on I-66—far...
Maintenance

WINTER MAINTENANCE: Checking priorities

June 12, 2013
When it comes to snowplowing operations, most public-works agencies historically have applied an ad-hoc approach, defined by geography and relying on individual drivers to navigate...
Concrete

SUPER PROJECT: Dressed as a tunnel

June 12, 2013
The creaks of a typical freight train—some 80 cars long—slowly merge with the screech of brakes not too far from jet-powered takeoffs.After a relatively short journey from north...
Home

MAJOR PROJECT UPDATE: Snapshot

June 12, 2013
S.R. 99, Seattle: At the beginning of May, crews used a crane to begin lowering the first large pieces of the 7,000-ton tunnel-boring machine, nicknamed “­Bertha,” into the 80...