Jack and Bore

A worker guides a 24-foot-long auger as a crane lifts it from a work area north of Wilshire Bl. Chain rigging is used due to the sharp edges and irregular shape of the auger. These photos were taken January 11, 2011.

Workers use a diesel engine mounted on a short track to extract another auger from the new tunnel under Wilshire Bl.

The specialized probe that ensures the sewer tunnel will have the correct slope waits to be removed from the excavated work area south of Wilshire Bl.

These patient 24-inch-wide sewer pipes wait to be slide into the tunnel underneath Veterans Administration property north of Wilshire Bl.

The matching end of the 24-inch-wide sewer pipes shown above.