I have some concerns about the cycletrack geometry, and I have a suggestion that avoids having to solve any current or future layer problems. Since this two-way cycle track is not grade separated, and since it is on the same roadway surface as Holton, I would suggest it be retagged onto the Holton roadways themselves. That way, it avoids any layer issues, avoids any rendering issues in other maps (we don't want drivers seeing a parallel way and thinking it's a road, and this would preclude any future access tag inconsistencies on a separate geometric object.
I'd recommend that Holton and Van Buren be tagged as:
bicycles=designated
cycleway:right=track
cycleway:left=lane (for the southbound Holton lane only)
oneway:bicycles=no (to ensure that routing algorithms still work for southbound riders in the cycle track on the right/northbound side of the road)
This way, it also simplifies the geometry of lines (and the Holton bridge area polygon) over the river, which is already pretty busy and confusing because of the marsupial bridge path underneath.