GOMACO World Index --- GOMACO World 40.2 - October 2012
I-15 is Utah’s primary north-south corridor
I-15 in Utah County was completed in 1965, with no significant improvements since
Utah County is the second most populated county with 20 percent of the state’s population
County’s projected population in 2010 was 560,000; by 2020 it will exceed 727,000
140,000 daily vehicles traveled the busiest stretches in Utah County during 2007; number is projected to grow to approximately 238,000 by 2030
I-15 CORE is the largest road construction project in state history
Largest project underway in the western United States
$1.725 billion price tag with a design-build contract of $1.2 billion
24 miles (38.6 km) of reconstructed interstate, adding two lanes in each direction
6.8 million tons of fill/embankment/borrow
50 miles (80.5 km) of drainage pipe
800,000 square feet (74,322 m2) of mechanically-stabilized earth walls
Painted roughly 1100 miles (1770 km) of temporary striping and roadway markings
Over 60 bridge structures, five of which were ABC bridges rolled into position
2.67 million square yards (2,232,460 m2) of Portland Cement Concrete Pavement
– 380,993 square yards (318,559 m2) completed in 2010
– 1,380,061 square yards (1,153,907 m2) completed in 2011
– 908,946 square yards (759,9954 m2) completed in 2012
200,000 cubic yards (152,911 m3) of Portland Cement Concrete other than paving
3000 blankets for five miles (8 km) of cold weather concrete protection
9000 orange barrels
Concrete paving began September 15, 2010
Last day of concrete slipform paving was August 29, 2012
364 lane miles (586 km)
Project used 40-year concrete along the entire corridor
Utah County I-15 Corridor Expansion - GOMACO World Vol. 40, No. 2
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