SIOUX CITY | Woodbury County officials have met the goal to quickly build a new road before December to aid the expanding CF Industries plant southwest of Sergeant Bluff.

"We're glad we were able to expedite this project," County Engineer Mark Nahra said. "We got this done in pretty much record time."

To improve traffic flow in the area, the county earlier this year borrowed $927,000 to extend 240th Street between Allison and Andrew avenues, along with improving a portion of Andrew Avenue. The L-shaped, 1.25-mile gravel road opened this week.

CF Industries will complete a $1.7 billion expansion of its nitrogen fertilizer plant by mid-2016.

CF officials requested the new road to provide a secondary route. County officials agreed to move ahead in July. The heavy road construction period was three weeks over October and November.

Trucks rumbling to the plant now will have another option.

"We are very pleased about it. It is very helpful to us," said CF spokesman Kim Mathers.

The new 240th Street ends at Allison Avenue, near the north entrance into the plant, at 1182 260th St.

"This is designed to be the main haul road for CF traffic," Nahra said.

In another road project, the county is also working on a $3.8 million 1-mile paved road, called CF Drive, to lead to the site. The state is covering $3 million of the cost. Work on that road is scheduled to end in 2015.

The CF project was the largest capital investment in Iowa when it was announced in November 2012.

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