Are some of the Fish Ladders closed?

The fish ladders between Bonneville and Lower Granite have no counts of fish over them, since the first of this month.

Are they closed for maintenance or something? I couldn't find anything on this in any of my Google searches.


Active Member
With the onset of winter, many of the dams stop adult fish counts because of low numbers and little movement. And you are right, it is often when annual maintenance is done on them. Most only have requirements to do counts for specific seasons of the year, that probably vary from dam to dam, depending on operator and location.