I have just finished scanning all 997 pages of the Frisco Northern Division Bridges and Buildings Manual. It fits on one 4.9 GB DVD. If any one would like a copy of the manual, I will snail mail it to you Postage Paid for $10.00 to cover my cost. I do not have the B&B manuals for any of the other divisions. A question, PB Tower is listed as having 40 windows, that has got to be a mistake, I can come up with a little over half that number, anyone know the correct number for the Paola, KS interlocking tower? email@example.com Richard E. Napper, MMR, 7244 NW US Highway 24, Topeka, KS 66618-5605.