09/24/2007 Council Packet - Laserfiche WebLink

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City of Lino Lakes T ntejo Project No i September 24, 2007 Page 5 walls It is assumed that these walls were not designed to cantilever out of the ground as they stand right now. It is our opinion that these walls are unstable in their condition and they need to be addressed. CORRECTIVE MEASURES 4. The following is our opinion on the steps necessary to insure structural stability of the west wall of the house and the ICF walls. Further analysis would need to be completed and construction details provided for all the items listed below: a. Typical foundation wall construction consists of the foundation wall being supported at the base by a concrete slab and at the top by the floor framing. The wall is then designed to span in the vertical direction and reinforced accordingly. It is suggested that the masonry knee wall be extended or replaced with a full height masonry wall up to the main floor framing and reinforced and anchored accordingly. b. The back void will need to be filled and compacted accordingly with special care taken not to overstress the wall. c. There needs to be support established for the north and south walls, at the northwest and southwest corners respectively. This could potentially be completed by providing a connection between the existing foundation walls to the walls of the addition or providing appropriate fill under the foundation walls or a combination of both. d. The floor framing and remaining construction of the addition should be completed to insure stability. 5. It may be found that the cost to complete the corrective measures as outlined above may be such that it may not be economically feasible or viable to repair the building. Other options that may be more cost effective could be as follows: a. Complete demolition of the ICF walls and bringing in backfill to the area and returning the structure to its original elevation configuration with a full basement wall at the west wall. The west foundation would still need to be designed and constructed accordingly to insure adequate support is achieved. b. Complete demolition of the ICF walls and bringing in backfill to the area and creating a walkout condition on the west wall of the structure. Again, the west foundation and frame wails would still need to be designed and constructed accordingly to insure adequate support is achieved. c. Complete demolition of the house entirely.