West Shadow Lake Drive is under construction from Birch Street to its northern end near Chomonix Golf Course. Because the trail uses that street for about a block, there are "Trail Closed" signs, and the only way through would be to walk the bike on the torn-up road in the construction zone. Not a good idea. Coming west from Centerville Lake, I detoured on the Lino Lakes Trail and Blackduck Drive around the east side of Reshanau Lake to get to Birch Street. Looks like the construction project is going to last a while.