If you’re planning to use I-70 this weekend, there’s new construction that’ll affect your travels. Crews also will close one lane of eastbound I-70 from Exit 156B to eastbound U.S. 40 from 6 a.m. to 7 p.m. Saturday to install subgrade drainage. That should last for two weekends. The $9.5 million project also will resurface that stretch of I-70 before the end of the summer.