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Golden Gate Bridge operator deploys moveable concrete barrier

Sources: Golden Gate Bridge, Highway & Transportation District, San Francisco; Lindsay Transportation Solutions, Rio Vista, Calif.; CP staff

A little concrete was added to one of the world’s signature steel structures over the second weekend of January, as Golden Gate Bridge engineers effected a major safety upgrade for northbound (Marin County) and southbound (San Francisco) drivers: Installation of a 13,330-ft. Barrier Systems median structure.

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ASTM Committee C13 approves inaugural precast segmental box culverts standard

Sources: ASTM International, West Conshohocken, Pa.; CP staff

Newly published ASTM C1786, Specification for Segmental Precast Reinforced Concrete Box Sections for Culverts, Storm Drains and Sewers Designed According to AASHTO LRFD relieves producers and engineers from having to refer to alternative ASTM standards for similar structures—each lacking segmental culvert design and fabrication specifics.

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Late-2014 figures track positively trending construction market

Sources: Associated General Contractors of America, Washington, D.C.; CP staff

Analyzing new federal government data on construction spending through November, AGC confirms that overall 2014 project activity was set to modestly outpace 2013 totals. Figures released January 2 coincide with association members’ push for action on a series of federal infrastructure programs, including funding for highway and transit upgrades, plus clean water initiatives.

Read more: Late-2014 figures track positively trending construction market