4841 GLENWOOD AVE 2019-01-11 - Laserfiche WebLink

temporary sump pump to control storm water runoff. See Exhibit 13. Mr. Allen's June 13, 2007 inspection report also notes that he observed the wall to be over eight feet in height. 13. Each ecology block represents approximately two feet in height.Five rows of ecology blocks stacked on top of one another would be eight to ten feet in height. 14. On July 26,2007,Mr. Allen,notified Mr. Popov and the owners of 4839 and 4837 Glenwood that the City requires that the owners retain a geotech or structural engineer of record and obtain from the engineer of record a special inspection, written approval and final certification for the wall. See Exhibit 14. 15. Mr. Popov's engineer from Mitchell Engineering, submitted an engineering detail for the ecology block retaining wall in fall 2007. See Exhibit 15.That engineering detail indicated that the wall should have been constructed to provide the following: a physical drain as well as drain rocks interspersing the layers of backfill to accommodate the potential subsurface runoff. That engineering detail,however, appeared to be intended to address the potential build-up of pressure from the additional dirt and water at the back of a wall that is made up of four,not five,rows of ecology blocks stacked on top of each other. 16. The Mitchell Engineering detail also failed to comprehensively address drainage and erosion issues. 17. On October 1,2007, the Building Official contacted Mitchell Engineering to notify Michael Mitchell that the ecology block retaining wall had been constructed five-block(or ten feet)tall. The engineer stated that per his detail,the wall should be only four blocks tall. See Exhibit 15 (note at bottom). 18. At no time did Mr. Popov or Mitchell Engineering submit any documentation of inspections performed by an engineer of record or a certification from an engineer of record. 19. On November 16, 2007, a portion of the retaining wall lying along Mr. Popov's property at 4841 Glenwood Avenue collapsed. Blocks of the retaining wall tumbled onto adjacent property,lying at the toe of slope running down from the ecology block retaining wall. See photos at Exhibit 16. 20. Additionally,the owners of adjacent property have indicated that they have observed excess drainage across property lines from Mr. Popov's property to theirs. The adjacent properties have experienced flooding and erosion of the ground in areas where water flowing from Mr. Popov's property has discharged. 21. On November 29, 2007, the building official wrote a letter to Mr. Popov noting the partial collapse of the portion of retaining wall lying along 4841 Glenwood Avenue. In that letter, the Building Official outlined the City's requirement for action by the owner. These actions included: 1) the retention of a licensed engineer to act as the engineer of record for the retaining wall; 2)the preparation of a design for the repair of the wall that is not only