2818 HOYT AVE FRATERNAL ORDER OF EAGLES 2022-05-23

• • researched moving the grease trap to the north,further away from the center of the tunnel, but cannot, due to structural and drainage interferences. Regardless,demolishing and modifying portions of the slab will compromise the structural integrity of the slab as well as the slabs unknown,undocumented, intended function.Anything in the vicinity of the slab and building as well as beneath them could be affected. D)The Great Northern/BNSF Everett tunnel runs directly beneath this project.The Great Northern Railroad built this tunnel and opened in 1910,approximately 111 years ago. D) It is my understanding the tunnel is currently used by the BNSF railroad,the Amtrac railroad and Sound transit. F) In the last 111 years of usage,there have been structural issues with the tunnel,some made public and I would expect some poorly recorded or not recorded at all. In my research, I discovered that the Great Northern and BNSF documents regarding structural observations, historical maintenance,as well as past structural repairs to the Everett tunnel were stored at the King Street Station in Seattle and these records have unbelievably been disposed of. G) One known example of a massive structural problem with the Everett tunnel occurred in the 1980's, which ultimately led to a partial collapse of the tunnel. This occurred when the BNSF mistakenly attempted to run a double stack container train through the tunnel,which became wedged against the tunnel liner/framework and BNSF had to extract the train from the tunnel.Sometime shortly after this, they undercut and lowered the track within the tunnel so it could accommodate double stack container trains. In the process,they severely compromised the structural integrity of the tunnel framework, which led to a partial collapse of the Everett tunnel. Although their construction process to create sufficient headroom for double stack trains is not fully known, it is known that their methods severely compromised the structural integrity of the tunnel timber framework,which caused the tunnel walls to settle and possibly rotate,creating voids around and above the tunnel and settlement to the soils and structures above the tunnel.The issue was further exacerbated when the earth and building settlements above the tunnel severed a buried waterline which scoured soil from around the tunnel and beneath the fill which supported structures above the tunnel. As a fix for the unstable tunnel, railroad crews spent months of 16-hour days, blindly pumping thousands of cubic yards of a concrete slurry into the voids surrounding the tunnel.One worker narrative stated that during a concrete pumping shift change,the shift supervisor was asked how the pumping process went during the shift and he stated that they just keep pumping,with little back pressure,and no one has any idea where the trainloads of slurry are going. He jokingly suggested that someone in Marysville(10 miles from the tunnel) may someday peek into the crawl space of their house only to see it pumped full of concrete. Another worker narrative claimed that once the tunnel concrete- slurry pumping operation was complete, rock bolts were then installed from the tunnel timber framework into the new concrete mass surrounding the framework,to stabilize the structurally deficient tunnel.Any documented proof of this,foolishly has found its way from the Seattle King Street Station into a garbage dumpster.We now only have eyewitness narratives from a handful of the remaining dedicated, brave workers who performed the dangerous subterranean tasks. s