Last summer I helped a friend move his bridge in the Catskills back into position. In a gully washer it moved a roughly 5' wide by 30'+ bridge which had 5 full length logs under it. To start it was several feet above the stream on one end but maybe only 5-6 above the usual water level on the low end. He rented a medium large excavator and we pulled it back thru about 75-100' of trees and brush, then took the excavator into the stream bed and lifted it as best we could into position. After I left he lifted the low end and put heavy flat rocks to get that end up higher then built a ramp to get off. In the end the bridge likely sloped 25 degrees give or take. In the end I think we ended up with just 3 full length logs under it, the other became detached. I don't know if he put them bck in later. His bridge was just for an ATV or snowmobile (or foot bridge)
Dave Klish, I recently ordered a 2x6 wood fired evaporator from A&A Sheet Metal which I will be converting to oil fired
Now have solar, 2x6 finish pan, 5 bank 7x7 filter press, large water jacketed bottler, and tankless water heater.
Recently bought another Gingerich RO, this one was a 125, but a second membrane was added thus is a 250, like I had.
After running a 2x3, a 2x6, 3x8 tapping from 79 taps up to 1320 all woodfired, now I'm going to a 2x6 oil fired and a 200-425 taps.