Wydot advises motorists in the Cheyenne area that travel across the Parsley Blvd. bridge over I-80 is down to a single lane. please drive with caution in that area and watch for flaggers. Department of Transportation personnel are currently on site investigating damage to the structure. Witnesses report that earlier today it was struck by a truck hauling equipment. The whereabouts of said driver and truck are unknown at this time. There is also a single lane closure on I-80 westbound beneath the bridge at milepost 360.8 so the WYDOT bridge inspector can safely work.