The folks at the Gold Line Foothill Extension Construction Authority emailed these good pics of work done this past week on the bridge that will carry the Gold Line tracks over the eastbound 210 freeway. The work involved bringing steel cage bridge supports to the construction site in Arcadia and installing them — requiring a night-time closure of the eastbound 210 earlier this week.

The photos on this page show the night-time work on the steel cage (love that term, btw!). The pics on the jump page show some of the day-time work.

The Foothill Extension of the Gold Line will run 11.5 miles from the current terminus at Sierra Madre Villa in eastern Pasadena to the Azusa/Glendora border. It’s a Measure R-funded project that the Authority is scheduling for completion in 2015.

Above, the eastbound 210 is temporarily closed in the early morning so that the crane could swing out over the freeway in preparation for lifting the steel cage. Below, a better view of the size of the cage.