The Seattle Times reports, “Portions of the vast Highway 99 tunnel are starting to look like the double-decker thoroughfare that former Gov. Chris Gregoire promised seven years ago. [Tunnel boring machine] Bertha’s recent progress along the Seattle waterfront — some 1,500 feet since diving below the Alaskan Way Viaduct on April 29 — has allowed crews to pour concrete walls and foundations for road decks.” (Video and photos are worth a look.)