Out with the old: Seattle selling city's street signs.

Byline: Sharon Pian Chan

Jul. 12--Seattle is getting all new street signs and the old signs are going on sale.

"The average street sign is now 15 years old," Mayor Greg Nickels said at a Wednesday news conference at Pike Place Market, where he showed off new signs for Pike Place and Pike Street.

"Unlike disco, we find older signs are not making a comeback," he said.

Between now and 2012, the city will put up new signs at the city's 17,000 intersections, using money raised by the "Bridging the Gap" levy that voters passed last year.

The project will cost $2.5 million to $3.4 million.

The city's transportation department …