The 6 foot concrete wall was built on the property line in 2010. The owner called it a retaining wall when I asked what he was doing. That required a 5 foot set back and a footing according to the city inspector I talked to at that time. The neighbor changed it to a fence and the city said there are no requirements for fences. That is a clear violation of building code and seismic standards to build a 6 foot concrete wall on top the ground as I understand it. Exemption from a permit says no higher than 4 feet measured from the bottom of the footing. I thought they just made a silly mistake that would eventually be corrected.
I asked how much dirt had to be piled against it since he originally called it a retaining wall. The Inspector said 2 feet. The owner built a daylight basement house on flat ground. His garage floor is about 8 feet above the original grade. He needed a ramp to drive into the garage. In 2014, he piled about 4.5 feet of dirt along the wall as he built his driveway.
I called the city and the original inspector was gone. The retaining wall definition changed to 4 feet of fill from 2 about that time. The city made all kinds of silly excuses not to enforce the code. It is landscaping dirt so it doesn’t count. They forgot to consider the lateral forces on the wall. The code says 4 feet of unopposed fill makes it a retaining wall requiring a 1.5 safety factor. I will have to admit since the wall has no safety factor, 1.5 x 0 = 0, eh?
The magnitude 9 + Cascadia Subduction Zone earthquake is overdue Washington, Oregon and southern British Columbia. The April 2015 Nepal 7.8 earthquake showing lots of big rocks and concrete buildings being disrupted motivated me to do something about the wall while I still could. A few emails were exchanged with the city as they continued to ignore the violations. I finally hired a structural engineer to evaluate the wall. He said it did not meet wind load or seismic standards. The city had no choice but to issue a correction.
The design they approved required a ½ cubic yard concrete block to be poured every 8 feet along the 165 foot long wall as a counter balance to keep it from falling towards us. I asked the engineer about that and he told me the owner did not care if it fell on his property. That is a concern because he has a 1,000 gallon propane tank 10 feet from the wall. It will be rolling around in an earthquake. Peak ground accelerations are expected to be as high as 1.25 times the force of gravity. OSU’s website says they can move a vehicle 100 yards in 5 seconds. That is 50 mph. There is no code in Washington to require the large propane tanks to be secured. They are top heavy sitting on top the ground waiting for trouble. Their safety devices are prone to failure when they are out of position. Fire is the number one secondary hazard in an earthquake. Propane is heavier than air, pools in low areas and is easily trapped in the corral that encloses the tank on 3 sides formed by the wall, the house and rising grade on the far side. If the wall falls, the debris field will most likely still retain propane in the corral. The natural air currents blow into the corral at least 90% of the time. A static spark generated by one’s clothing can ignite propane. If this isn’t a fire code violation, it must be domestic terrorism!
Anyway, I got side tracked on propane. The seismic upgrade required 108 - 5/8” rebar to be drilled and epoxied 6 inches deep into the existing concrete. I was outdoors most of the time they were working on the “corrections”. I heard them digging but I did not hear a single hole drilled into the concrete. This is long enough. I will not go into what I consider to be criminal violations in the approval of the correction process.
There is no oversight for cities interpreting the codes to be nonexistent in this state. I have contacted every possible government entity in this state. Attorneys say there is no cause for action without property loss, serious injury or fatality. Of course the codes say their purpose is to protect the public’s safety and property. I have contacted the U.S. Department of Justice but have not received any response.
Anyone have any ideas how to get this resolved?