What about the bison?

Thursday only three of us showed up to paddle; everyone else was SK102-bound. Given that we were an intimate little group we had some time to muse as we headed upriver (I won't dwell on the coastal flooding advisory which was in place). What's with the central section of the Memorial Bridge - why is it metal when the rest is stone? And what's with the buffalo head decorations at the apex of all the arches?

A little research revealed that the center span was originally a drawbridge. Over time, as less boat traffic headed to Georgetown it got used less and less frequently. by the 1960's there was basically no longer a demand for passage of tall boats and so when Roosevelt Bridge was built they didn't bother making it a drawbridge. Having a low bridge just upriver was the final nail in the coffin, and so the drawbridge mechanism was disabled and was removed in the 70's.

As to the bison, I couldn't find a story. The bridge symbolically relinks the North and South (connecting the Lincoln Memorial top Rober E. Lee's house at Arlington). Maybe the bison were considered a symbol of the "post-bellum" vitality of America, in particular the American West. Or something.

Anyway, a good paddle. Water was high - the normally poky boundary channel was wide and deep.