The construction of Fort Washington was a confluence of forces. There was impetus by President Washington to secure the Ohio River frontier to the west at least as far as Louisville with a line of strong forts. There was Fort Pitt, Fort McIntosh, Fort Henry, Fort Harmar and Fort Nelson; there was a big gap between the latter two and a convenient confluence of the Great Miami and Ohio Rivers where a fort could be built. Washington also envisioned extending the forts north along the Great Miami River deep into Indian territory to secure Ohio Country and neutralize the Miami stronghold at Kekionga. For that, he needed an anchor fort. The third impetus was the tenuous survival of the three tiny settlements in the Symmes purchase: Losantiville, North Bend and Columbia near the confluence. So in the Summer of 1789, an expedition under Maj. John Doughty who supervised the construction of Fort Harmar, was launched to scout the area.
Sbalfour (talk) 20:39, 14 December 2018 (UTC)