High water on Sept 6 shows possible design flaws

We had a .65 inch rain event on Thursday night 9/5 and the photos below were taken on Friday 9/6. The newly constructed areas of the stream had some damage, but it's hard to say if it was due to the design or not.

This view is from the bridge next to #16 tee looking north toward the 16th fairway. During a big rain event, the stream always goes over it's banks through this area. The water will flow down the cart path next to the 17th green and re-enter the stream on the down side of the bridge going to the 11th hole.

The high flow of water re-entering the stream cut this chunk of bank away adjacent to the bridge on #11. I'm not sure how this could be prevented since it happens every time we get high flows.

This photo shows the bank next to #8 tee. This is a design flaw that has to be corrected. The root wads and tree stumps in the stream directed the flow around them toward the bank and caused this erosion. Design engineers were on site later that day to access the situation and determined that one of the larger stumps had to be removed. The bottom photo shows the stump removal. The bank work will have to take place next year since the in-stream work window has closed for this year according to the project permit issued by the WA State Dept. of Fish and Wildlife.