Thomas, Try to get as much info on which covered bridge, as history of repurposed timber is beginning to catch on and it can be a selling point.
The Landing Boat School in town;
http://www.landingschool.edu/
Is just beginning to look at more renewable local woods, one of which is Black Locust, but they're having problems sourcing a reliable local supplier of timbers and planking.
They gave Dad a chunk of it for me to play with, but haven't gotten around to it yet.
You may want to surface a chunk and finish it so your wife can see it, before it's all raised beds
Could be good for 3D's?
scott
scott P.
2013 Desktop/spindle/VCP 11.5**
Maine