The blue lines are plastic wrapped steel cables that run from outside to outside of the concrete poured floors. After the concrete cures, the cables are stretched extremely tight. This prevents the concrete from breaking apart in an earthquake. The orange thing in the picture is the pump used to pour the concrete onto the deck. You can see that the concrete being poured is wet.
©Copyright 1996 LOVE Plumbing &
Remodel. ALL RIGHTS RESERVED.
Terry Love. (425) 649-LOVE. Heart logo is a
registered trademark