Remember the tired old scam about selling the Brooklyn Bridge? Well, the Potomac Division of the American Automobile Association is selling the Woodrow Wilson Bridge, piece by piece. No kidding. No scam.

It's the brainchild of my former Washington Star competitor, Tom Crosby, now AAA Potomac's public affairs director. The idea is to cut up pieces of the bridge's deteriorated deck, coat them in epoxy and sell them for $5 a bite as paperweights.

The best part is that all the proceeds will go to two deserving Washington institutions--the Capital Children's Museum and the Children's Hospital National Medical Center.

The concrete for the paperweights was taken from the first slab of the old decking removed when the bridge reconstruction began Dec. 3. Northeast Concrete Cutting Corp. of Boston provided the chunks from which the paperweights are made, while Cianbro Corp. of Pittsfield, Maine, donated the epoxy and labor to finish the paperweights. AAA Potomac is marketing them without administrative cost.

To get one, go to any one of AAA Potomac's four offices in Washington, Alexandria, Wheaton or near Falls Church. Or, by mail, send $9 (packaging and mailing a chunk of concrete is costly) to AAA Potomac, Woodrow Wilson Bridge Paperweight, 8111 Gatehouse Rd., Falls Church, Va. 22047.