Single lane closures will be in place on northbound Interstate 580 through Washoe Valley May 5 and 6 as the Nevada Department of Transportation performs routine pavement monitoring and analysis. Drivers should anticipate reduced lanes and speed limits with moderate travel delays on northbound I-580 between approximately 6 a.m. and 4 p.m. both days. The lane closures will allow for small samples of the roadway surface to be drilled and extracted for planned evaluation and monitoring.