On the back of the photo Oakland Tribune caption - hand written "New section of highway to be used starting Thrusday new Caldcott Tunnel- Braodway Tunnel." Also, a newspaper article stamped TRE Aug 16, 1961 "Tribune aerial photo by Russ Reed from Ace Darrah's Executive Aviation plane - CALDECOTT TUNNEL DETOUR (RIGHT OF HIGHWAY IN USE) OPENS TOMORROW - Canyon was filled to provide new road for Contra Costa traffic". Stapmed is "Plane flown by Ace Darrah Executive Aviation - Oakland". The date shown on the back of the photograph is Aug 16, 1961. Photograph is an aerial shot of the tunnel on the right side and cars on the roadway.