State highway officials are providing more details on blasting that will affect traffic on I-64 in Nitro and St. Albans. The blasting is set for 12:30 again today on the southwest side of the I-64 St. Albans interchange. Police will start pacing traffic five to ten minutes before the blast, and ramps will be closed at the St. Albans interchange and the Nitro interchange. Periodic blasting is expected to continue through the end of August.