March 13th, 2012

HIGH MAST UPDATE

Uncategorized, by Catherine Higgins.

Lighting maintenance on I-15 in Salt Lake County is nearly complete and nighttime drivers should notice that the freeway is brighter.

A worker raises the high-mast light fixtures after completing maintenance.

One of the most common reasons people call the UDOT main office is to express concern about freeway lighting. Appropriate lighting is important to safety. According to numerous studies (see NCHRP Project No. 5-19, P. 73)  night time crashes can be reduced by over 20 percent at some locations by adding lighting. System to system interchanges and other places where the freeway is complex having many directional signs indicating interchanges or exits benefit from good lighting. For example, on the I-15 to I-80 interchange in Salt Lake County, lighting helps assist state-to-state motorists head in the right direction.

Work on high-mast lights on I-15 is almost complete.

UDOT has been working hard to replace centerline lighting on I-15 through the Salt Lake Valley.  High mast fixtures, ballasts and fuses need to be replaced about every four years. Starting from 106th South and proceeding north, crews have been working on Sundays to re-lamp the freeway.

Good news – the work is nearing completion. “There are a few poles along there with circuit problems, but we will get that addressed soon,” according to Richard Hibbard, UDOT Traffic and Safety Signal and Lighting Engineer. “The I-215 South Interchange gore areas still need some work as well.”

Shane Killen with Black and McDonald of Sandy, Utah has been managing the project. “It’s been a pretty routine process,” says Killeen, who has been working with crews on successive Sundays to avoid heavy traffic. Other than a few snow days and some underground power issues, the work has gone well. Killeen anticipates that the work will be completed before the end of March.

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