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.t Finn -Daniels ARCHITECTURE /DESIGN 4175 Lovell Road Lexington, MN 55014 6121780-1948 October 2, 1988 City of Roseville Planning Department 2660 Civic Center DriKe Roseville, MN 55H 3 Re: Casei Cmmplex Attention: Planning Staff To Whom It May Concern: The intent of this outline is to validate the construction methods used ire the wall detail adjacent to the storm ponding areas ( see detail options attached; these were submitted for review on 9-23-88 A. Letter from Breivik Engineers dated 9-30-88 (attached) B. The following individuals/organizations were consulted and have made the conclusions noted here: Jim Hill: Minnesota Department of Transportation Hydraulics Engineer: Tel. No. 296-6136 MN DOT Specification #5-297-626 211 cover as mass protection to reinforcing, even in walls that are perminantly retaining water would conform with their requirements. Charles Bremmer: Materials Engineer with Braun Testing Company, Maplewood Office. American Concrete Institute code (Chapter 7 section 318.83) would require 2 - 3" cover depending on wall use and size of reinforcing. In this particular case he suggests 2". We have no concern regarding, hydrostatic pressure or water infiltration around this wall, only the reaction to the freeze thaw process (2" is sufficient). Ben Mayeron: Registered Structural Engineer: Tel. No. 926-4885 No consequence to the walls integrety with 2-3" concrete cover. Given the duration that water/snow or ice would be leveraged against the wall he would see only minor consequence to brick if it were applied in the following manner: Full concrete backup to brick with out designated color joint. Non -corrosive brick ties and severe weather brick. The consequence would be to the.mortar joint over a period of time requiring some retooling.