Get ready for another week of lane closures related to the Interstate 25 and Cimarron Street interchange project. Beginning Monday and continuing through Friday, lanes will be closed on eastbound and westbound Cimarron Street, or U.S. Highway 24, between 9 a.m. and 5 p.m. Between 9 a.m. and 3 p.m. on those days, the right lane of Colorado Avenue will be closed at Walnut for crews to work on concrete and fencing. From 9 a.m.