从帕萨迪纳（Pasadena）的南加州城市到阿祖萨（Azusa）的山麓金线轻轨项目距3月5日的欢迎乘客仅数周路程。这是负责近10亿美元项目的建设的实体，可以回顾一个成功且具有挑战性的多方面工作。

One of the most fascinating challenges of the project was the construction of the 584‐ft-long Gold Line Bridge, which stretches diagonally across the five‐lane Eastbound I‐210 Freeway in the city of Arcadia, about 15 miles northeast of Downtown Los Angeles.

"Constructing this bridge was challenging because the bridge was built over a large active freeway and a seismic fault," says Chris Burner, chief project officer for The Authority. "Although conventional wisdom calls for avoiding any such surface fault rupture zones, this was not an option for the project alignment. A complex fault study was performed prior to contract award in lieu of the original plan of assigning that task to the design-build contractor. This proactive approach resulted in schedule savings of approximately six months."

伯恩说，在断层线上建造桥梁创造了许多设计复杂性，这些复杂性成功地通过计划和创新的“智能基础”来克服，这些智能基金会将时间域反射仪（TDR）技术集成到堆基础中。

"During a seismic event, the TDR technology will use fiber optic cables to predict the location of potential underground damage," he says. "This was the first use of this approach in California."

Construction of the 11.5-mi-long, six-station project was managed by The Foothill Gold Line Construction Authority. The project reached substantial completion last September and was turned over to Los Angeles Metro to manage.

Last month the Gold Line was awarded a Project Achievement Award for design-build projects worth more than $100 million by the Construction Management Association of America’s (CMAA) Southern California Chapter. The award follows the on-time, on-budget completion of the project and recognizes the success of the design-build procurement process.

该机构计划经理希尔国际（Hill International）提交了该项目奖励。该奖项将于4月在洛杉矶市中心举行的CMAA第24届年度颁奖晚会上颁发给建筑管理局。

The project, which broke ground June 26, 2010, has been led by three design-build teams. The first contract was awarded in June 2010 to Skanska USA to design and build the iconic, basket-shaped Gold Line Bridge in the city of Arcadia. Construction on the 584-linear-ft-long bridge began in July 2011 and was completed in December 2012.

2011年7月，第二份合同授予了Foothill Transit构造师 - Kiewit Parsons合资企业，以设计和建造Azusa“ Alignment”的Pasadena，其中包括电台，轨道，轨道，交叉，桥梁等。2015年9月23日完成了实质性完成。

The last contract was awarded in February 2013 to Webcor Builders for the intermodal parking facilities and enhancements design-build project. All three design-build teams completed their work on time and on budget.

构建新的轻轨系统,construction crews worked more than 2.4 million hours to build six new stations, a 24-acre Operations Campus, 24 bridge structures, and 14 at-grade crossings. They relocated four miles of freight track, welded 56 miles of steel rail, used 75,000 concrete ties and 300,000 e-clips, and erected 620 OCS (overhead catenary system) poles.

目前，建筑管理局正在为Foothill Gold Line从Glendora到Montclair进行高级概念工程。该机构计划在2017年第一个设计建设项目中打破地面；完成12.3英里，六台轻轨延长将需要五到六年。该时间表取决于获得建筑资金，预计这将来自2016年11月投票提出的税收措施。