Riggsville Bridge Company Articles of Incorporation November 22nd, 1862. Rubin Riggs, William P Riggs, and Andrew Riggs. Bridge to be constucted at the middle fork of the Powder River Valley(toll bridge)(on land claim of Rubin Riggs). Capital stock $600 in 6 shares of $100 each. Signed by stock holders. Witnessed by John Q Wilson, County Judge, and WT Ivy.