在佐治亚州一项公路项目的承包商发现快速铺设甲板损坏后,他们进行了紧急桥梁维修。

The 135-ft, three-span mainline bridge carries northbound Interstate 85 over a CSX railroad in Jackson County. It was built in 1958 and is one of six bridges scheduled to be replaced as part of the second phase of an I-85 widening project, which is part of the larger Georgia Dept. of TransportationMajor Mobility Investment Programto create additional capacity, enhance safety and decrease travel times on important routes across the state.

C.W. Matthews Contracting Co. is the design-build contractor for the $96-million Phase 2 project. Georgia DOT officials say an inspector from engineering firm Atkins noticed the damage and notified the rest of the project team, including DOT. A failure in the edge beam concrete created a patch of spalling on the bridge deck, an agency spokesperson says. The patch, just 1-in. when it was first discovered, quickly grew to a 12-ft-wide damaged area spanning both lanes due to settling.

这座桥在3月16日关闭进行紧急维修。项目团队与DOT和当地官员合作进行了绕行。官员说,机组人员全天工作以修复边缘光束和桥梁甲板。第二天下午,一条车道重新开放,然后在那之后的早晨,这座桥完全重新开放。官员还没有维修费用。

在匹兹堡蕨桥瓦崩溃之后,公众对桥梁安全的关注越来越大。DOT的项目经理Butch Welch在一份声明中称赞承包商确定和努力快速修复损失。

“We’re grateful to the contractor for their quick, proactive actions to inform the department and get to work repairing the bridge,” Welch said.

佐治亚州DOT说,项目团队预计将在7月初到新桥。

第2阶段项目将在两个方向上将I-85的6.7英里处扩大到三个车道,扩大了中位数,取代了六个主线桥梁和1个桥梁,并取代了减少交通拥堵的目标。DOT预计将在2023年完成。