So last summer I built a Howe Truss which was the preferred design of the Coeur d’Alene Railway and Navigation Co. to cross the Coeur d’Alene River. So since I needed a bridge that was not permanent I felt this was a good option for the lift bridge I needed. Last summer I got it made then two surgeries ended my summer. So I got around to getting it installed today after work.
After some suggestions on making the hinge I a came up with this design and it works well
And Finally to land the bridge I used to blocks to center it and a couple screws to set the height.
Finally a gate latch not shown holds it in the open position.