Algonquin Provincial Park in Ontario, Canada has picked up attendance and became so popular in 2014 & 2015 that campsites are now met with large numbers trying to make reservations. Only one campground is kept open year round.
Making reservations for campsites has become like bidding on E-Bay so be fore warned. Oh yes culvert construction will tie up the main corridor road for long periods of time when traffic is heavy. Very little speeding enforcement also. Hopefully these issues will be only temporary.