I work mostly on the Adwords side of the business at my company, but they are discussing how to best handle duplicate content pages and I thought what better place to ask than webmasterworld. Because of poor site architecture, each page on the site has 10 identical pages...the only thing different is a slight difference in the URL based on how the user clicked on to the page. 301 redirects seems to be the way to fix this issue on the existing, and indexed, pages. But my concern is that we are seriously talking about 100,000+ 301 redirects and will Google not look favorably on this many 301's? The concern is the number of 301's and the timing of implementing them. We could do them in batches, but even still I am worried this could be very damaging.
Anyone with experience handling 301's at very high volume?