Another bridge in our area, on Route 345 over a tributary to Pine Creek, is closed for replacement. But this one—unlike the one in the middle of the preserve just completed this spring—should have minimal impact on you if you are visiting Crow's Nest Preserve. If you are coming from the north you would turn off of Route 345 onto Hopewell Road before you reach the closure. And from the south you would normally turn off onto Harmonyville Road before you reach the closure anyway.
A happy outcome of the construction is that a visitor happened by this weekend who had become lost on the detour and discovered Crow's Nest; it was like he was blown here by the winds of chance. He was thrilled to make the discovery.
The official detour is a whopping 12 miles and if you are visiting nearby Hopewell Furnace or French Creek State Park the closure could really affect your plans. Call ahead or consult a map to find alternatives.