This Friday, April 30th, the section of the South Bank Willamette River Path that runs under Interstate 5 between the Knickerbocker Bridge and Franklin Boulevard and the Glenwood area will be closed to all bicycle and pedestrian traffic from 7 am to 7 pm. The closure is part of the ongoing construction of the new I-5 Willamette River Bridge.
This is a rare case where there will probably not be a clear detour to get cyclists to a convenient alternate route. This particular stretch of the South Bank Path, pinned between the river and the railroad tracks, just doesn’t have many other options. If your ultimate goal is connecting from downtown Springfield to Eugene, the network of North Bank Paths will connect up just fine (see below for the current state of the detours there). The direct connection from Glenwood to Eugene is another issue, though. Cyclists could skirt the south edge of eastbound lane of Franklin Boulevard, since a combination of gravel path and narrow walkway along that side of the road is passable with a mixture of riding and walking (Keep a sharp eye out for bikes or peds coming the opposite direction, since the westbound half of Franklin has no safe margin for non-motorized traffic!). Or, splurge on a little bus fare and treat your bike to a ride inside the EmX to get over the construction zone in style on Friday.