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Serious accidents decreased on stretch of I-15 during rebuild

Published December 7, 2012 3:05 pm

Safety • Overall crashes increased, but fatalities declined dramatically in Utah County project area.
This is an archived article that was published on sltrib.com in 2012, and information in the article may be outdated. It is provided only for personal research purposes and may not be reprinted.

Taylorsville • As crews rebuilt Interstate 15 in Utah County over the past three years, white-knuckled drivers faced an obstacle course with narrowed lanes that shifted from week to week to wind around construction and equipment. It seemed like a formula for lots of serious wrecks.

Instead, serious accidents and fatalities there actually decreased, although minor ones went up.

The number of serious accidents in the project area during the 34 months of construction — compared to the 34 months before it began — dropped from 56 to 45, the Utah Transportation Commission was told Friday.

And the number of fatalities dropped from 15 to seven. "That's less than half," Ahmad Jaber, an engineer for the Utah Department of Transportation, told the commission.

So he joked, "The lesson is the more construction you have, the fewer fatalities you will have."

Jaber compiled the statistics at the request of the commission, which wanted to see how safety was affected by the $1.1 billion project that rebuilt 26 miles of I-15 from Lehi to Spanish Fork.

Commissioner J. Kent Millington asked if serious accidents were reduced because people had to drive more slowly with construction.

"I think they drove more carefully because of more narrow lanes, and cars were closer together," Jaber said.

While serious accidents decreased, overall accidents along the stretch increased — from 3,560 to 4,175, Jaber said. That calculates to about a 17 percent increase.

"You would expect to have more[crashes] in a construction zone," said Commission Chairman Jeffrey Holt, adding that the overall accident increase was not a surprise — but the decrease in serious accidents and fatalities was a pleasant one.

The commission asked UDOT to also study accidents there over the next 34 months to compare post-construction safety with prior periods.

The rebuilding project is scheduled to have its formal ribbon cutting next week, although all lanes were essentially completed and opened to traffic last month.

The project added two lanes in each direction along the 26-mile stretch, rebuilt 10 freeway interchanges and replaced or modified 63 bridges.

Crews used 2.6 million square yards of concrete, which could pave a sidewalk from coast to coast. The project used 7.7 million tons of dirt, which could fill Brigham Young University's Marriott Center 13 times. It also required 6.6 million man-hours of work —¬†about the same as the 7 million man-hours needed to construct the Empire State Building.






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