There have been a few threads recently by people planning to visit Algonquin Provincial Park this spring, so I thought I'd draw some attention to the flooding that happened in the park this weekend: algonquinpark.on.ca/news/2013/2013-04-19_flo… And a special bulletin about the suspension of backcountry camping reservations: algonquinpark.on.ca/news/2013/2013-04-22_spe…
To help interpret that info for those not familiar with the area: Highway 60 itself, the main corridor through the busiest part of the park, does not seem to have been impacted. However, many of the access roads that branch off Hwy 60, as well as some trails, campgrounds, and canoe route access points, were flooded or washed out and are currently closed. Same goes for roads accessing the east side of the park and the more remote access points. Some trails etc that are right on Hwy 60 have not been impacted.
I'll post an update if updates are made available (I'll be checking since it affects me personally). People planning to use some of the affected facilities in the near future should contact the park to ask about them specifically.
My personal guess -- not based on any insider knowledge -- is that the trails themselves should re-open soon as flood waters recede, but some of the washed out roads could take longer to repair. I'm particularly concerned about Lake Opeongo Road, since the picture of it on the linked page shows severe damage. Not sure how bad things are for Rock Lake Road, which accesses the Centennial Ridges trail among other things. Hopefully the Mizzy Lake Trail will be open soon if water levels go down -- while technically it is accessed by the Arowhon Road, which is badly damaged farther up, the trailhead is practically right on Hwy 60.
Anyone who was planning to access Lake Opeongo this spring (including the Hailstorm Creek tour) might want to follow the blog of Algonquin Outfitters, http://algonquinoutfitters.com/blog/ . Since much of these guys's business depends on access to Lake Opeongo, I'm sure they'll make it known when hope is in sight for the road.