BARSTOW — The Interstate 15 Superpave project is still on pace for an early 2016 completion as Caltrans officials say construction is “going strong.”

Caltrans began work last month on the overlay and shoulder work project. Both directions of I-15 are being overlaid by a material that is called “Superpave,” along with the addition of a fog seal to the shoulders.

“We are still going strong on the paving aspect and there is still work to be done on the on and off ramps,” Caltrans Public Information Officer Philip Havins said last week. “It’s hard to tell, but I would estimate we are more than 33 percent completed. But, I couldn’t give an exact number.”

Havins said the estimated completion time is still expected to be early 2016 — that is if the weather works in Caltrans’ favor.

“The project is weather dependent as crews need optimal temperatures to lay the Superpave,” Havins said. “If we do get hit by an El Nino system sometime this winter, that could really delay the work as we hope to be completed by early next year.”

Superpave is known to be durable and long-lasting in preserving the road, Caltrans said.

“It will provide a durable and long-lasting product for motorists,” Havins said. “It will cut down on maintenance and provide the cost-effective result for taxpayers. It is something that will save public funds.”

Motorists can continue to expect closures on I-15 into early next year as lane closures are essential to protecting workers and preventing traffic from traveling over the materials as they cool. Havins said motorists should continue to plan ahead, add extra trip time and check traffic conditions on the Caltrans Quickmap tool.

Traffic conditions can be viewed on the Caltrans Quickmap by visiting www.dot.ca.gov/dist8/. You can also follow along on Twitter, @caltrans8, or sign up for commuter alerts on www.caltrans8.info.