I emailed the ranger at Boundary today and this is the response I received:
Thanks for asking about the trails here at Boundary Park . Yes they are in worse condition as the last time you have been out here, if it was before the flood but that being said, they are still “ride able.” There are some pretty significant standing water areas so just be aware of those and be prepared to turn around in some incidences. With some warm, dry days, they will eventually get a lot better but with all this rain and cold weather, they are still taking a beating.
I hope this helps and let me know if you have any more questions.
Douglas County Parks & Recreation
Are we ever getting to ride the trails around here?