Reid Middleton 7/10/2018 - Laserfiche WebLink

EXHIBIT A SCOPE OF WORK A. PROJECT UNDERSTANDING Everpark Garage located at 2815 Hoyt Avenue, Everett, WA 98201 is a 33-foot-tall, three story structure constructed in 1970. It measures approximately 390 feet long by 118 feet wide and provides four levels of parking, including the top deck (i.e., roof) level. Deterioration has been observed in the garage generally consisting of steel corrosion, concrete and grout spalling. Corrosion has been observed on concrete reinforcing bars and precast connection plates in various locations at each level and is believed to be caused by water intrusion. The City of Everett would like to have these conditions investigated to determine whether repairs are required and to determine how to mitigate additional deterioration. In the report dated August 31, 2017, Reid Middleton documented various conditions that were observed and provided repair concepts that addressed these conditions. We understand that a waterproofing consultant was retained by the Downtown Everett Association to review options for preventing future ingress of water; however, the consultant's recommended repairs were not completed. Reid Middleton is being asked to prepare a set of drawings and bid documents to allow the City to complete the suggested repairs included in the Reid Middleton letter report and in the waterproofing consultant's findings. Material testing or destructive testing is outside the scope of this design. The repairs are expected to address structural and finish issues noted in the letter report only, with supplemental information based on the waterproofing consultant's findings. Design elements taken from the August 2017 report are to include: 1. Clean the existing precast panel connections throughout the parking structure. This is expected to involve removal of existing grout, cleaning of the steel connections, applying a protective coating, and re-grouting. Supplemental connections may be added at locations where the existing connection is deemed to have a diminished strength. 2. Repair the existing precast beam support at the roof level at Grids A/1-2 and A/21-22. This is expected to involve patching and potential addition of fiber wrap to small connection posts. 3. Patch spalled concrete and exposed reinforcing throughout the parking structure. This will involve cleaning of the reinforcing and addition of concrete patches. Several dozen locations are expected to be affected. 4. Cover exposed reinforcing in the top flanges of the precast beams. Several dozen locations are expected to be affected.