Stephen Spaulding, chief of the architectural preservation division in the National Park Service's Northeast region, said the 500-foot move on Saturday should take three to six hours.
If problems do arise, Mr. Spaulding
said the house can be releveled by adjusting the blocking between the steel beams and the frame of the structure.
For now, he
does not anticipate any need to halt the move outright.
As for that 6 percent slope on 141st Street, Mr. Spaulding
said the contractor "is very confident that the grade is not going to be a problem."
moved houses down grades like that before," he
The move itself is being done by Wolfe House and Building Movers of Bernville, Pa.
The general contractor is Integrated Construction Enterprises
of Belleville, N.J.
Each of the nine dollies has its own propulsion and braking system, Mr. Spaulding
said, powered electrically and hydraulically.
"If there's any failure of the systems," he
said, "the brakes lock up.
There are four brakes on each dolly, for a total of 36 brakes.
colleagues will breathe easier on Saturday night, but given the reconstruction and restoration ahead, they will not have much chance to relax.
"Our goal for reopening the house would be the fall of next year," he