Temporary creek repair along #8 tee

The City of Bellevue hired a consultant to repair an area of the stream along #8 tee where a large section of the bank washed away.

All of the work shown above was done by hand as permits will be required for any permanent repairs. A log was laid along the toe of the slope, then 5 additional logs were laid across on an angle to the stream spaced about five feet apart. Holes were drilled through the top and bottom logs and six foot long pieces of re-bar were pounded through and into the bank. 

One long log was placed on top of the diagonal logs and anchored in place. Several large rocks were moved along the row to help keep them in position. 

The area between the bank and the logs was back filled with a series of coir logs (8 foot logs made out of a burlap type material) and tied down with rope. Then the entire area was filled with rocks from the stream bed. Several sections of a black screen material were placed along the stream bed to help catch small debris and prevent water from cutting underneath the structure. The consultant has a lot of experience working in urban streams and assured me that the design will work. If this design fails, the City will have to engineer a permanent solution and get permits for the project.