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HomeMy WebLinkAboutre: proposed addition MAk 14-2003 13:23 1" TE I G MPLS 7635711 i 6e P.02/05 CONSULTING ENGINEERS SINCE 1944 OTHER OFFICES., FARGO,ND BISMARCK NO ULTEIG ENGINEERS, INC. SIOUXFALLS.SD 5201 EAST RIVER ROAD,SUITE 308 PHONE:763.571-2500 Air MINNEAPOLIS,MN SS421 FAX 783.571-1168 WEB SUE:wwwatelg.=M REVISED March 14,2003 February 13, 2003 Alexander Design Group 401 East Lake Street Wayzata, MN 55391 Attn: Kathy Alexander Subject: Adams Residence 1145 Tonkawa Road Orono, MN Project No. 03-6447 Dear Ms. Alexander: The purpose of this letter is to report the findings of a structural feasibility study for a i proposed addition at this residence. ASSIGNMENT Ulteig Engineers, Inc. (UEI) has been retained to provide a structural feasibility study for a proposed addition to the existing residence located at 1145 Tonkawa Road in Orono, MN, as directed by Kathy Alexander of Alexander Design Group. i BACKGROUND Alexander Design Group wishes to know the feasibility of constructing a second-story addition to this residence. DESCRIPTION The structure is a single story home with a full basement. A garage exists along side the house and is attached by roof only forming a covered patio area, The structure was built In 1966. The proposed remodel Includes a second story addition over the full length of the house and the garage. EQUAL OPPORTUN"Y EMPLOYER 1 MR-14-2003 13:24 UL" [G MPLS 7635711168 P.03105 I Alexander Design Group ' February 13,2003 I OBSERVATIONS AND COMMENTS 1. A site visit was conducted by Craig Oswell of UEI on February 6, 2003 to review the existing conditions. The following items are noted: a. The overall width of the house is approximately 28 feet. b. Floor joists and roof rafters span the 28 foot dimension and bear on a center wall and header line, C. The frame walls at the house vary in thickness but average approximately 6.5" in thickness. The walls are plastered and may be built from either 2 x 4 or 2 x 6 construction. d. The frame walls at the garage are 2 x 4 in thickness. e. The foundation walls are 11 course high 12" thick concrete masonry block. The foundation walls are plumb and show no signs of significant distress or settlement. f. The main floor level at the front of the house is level with grade. The rear basement level is walkout. g. Several openings exist at the bearing walls. The openings on each story generally align with each other. h. A brick chimney extends the full height of the house and protrudes several feet above the existing roof. I. The exterior walls have full height brick veneer at the rear and % height brick at the front. 2. Alexander Design Group provided design sketches of the proposed addition. These drawings were reviewed and the following Information is noted: a. The new roof will span the full width of the existing house. b. The proposed second floor will be built into the new roof trusses. C. Additional deck and porch structures are being added. d. Stone veneer will replace the existing brick veneer. e. The chimney Is to be extended to protrude above the new roof. 3. A structural engineering review of the structure was performed and the following is noted: a. Assuming an allowable soil bearing capacity of 2000 psf and an existing footing size of 18" wide by 6" thick, the footings are structurally adequate to support the design loads of the proposed addition. b. Assuming the existing foundation walls are ungrouted and unreinforced 12" thick concrete masonry units, the walls are structurally adequate to support j the design loads of the proposed addition. 2 MHR-1472003 13:24 1 —EIG MPLS 7635711168 P.04 05 Alexander Design Group February 13,2003 C. With the possible exception of the garage door headers, the existing framing is structurally adequate to support the design loads of the proposed addition. The review assumed minimum interior header sizes of (3) 2 x 10 and exterior sizes of (2) 2 x 10. Frame walls are assumed to be a minimum of 2 x 4's @ 16" on center for the garage walls and either 2 x 4's at 16" on center or 2 x 6's at 24" on center for the house•walls. d. Special header and bearing conditions, such as the extension of the I fireplace and the garage door headers, will require additional review once the exact structural layout is complete. This review can be performed during either the design or construction phase of the addition. PROFESSIONAL OPINION 4. It is my professional opinion that: a. The overall construction is in sound condition. b. The existing footings, foundation walls, and wood framing are structurally adequate to support the design loads of the proposed addition. C. The proposed addition to this residence is feasible and can be constructed. GENERAL 5. The information, observations, and opinions stated in this report are based on an ion made b Craig Oswell. The inspection consisted of a visual walk- through observing exposed elements and those accessible without the removal of finished materials, 6. The opinions expressed in this report are based on my professional engineering judgment and professional practice, as well as the visual inspection. 7. No other engineering was performed or requested for this project. B. This report is a feasibility study for the addition of a second floor. The final details of construction will be addressed at a later date. If the observations of this report are found to vary from the actual conditions, please notify UEI for review and comment. 9. Once available, please forward UEI a copy of the final construction documents for further review and comment as required. 10. If further engineering assistance is required, please contact UEI. 3 MPRw14-2003 13:24 UL" 'TG MPLS 7635711168 P.05/05 Alexander Design Group February 13,2003 If you have any questions, please contact me. Sincerely, ULTEiG ENGINEERS, INC. Craig Oswell, P.E. CO: to I hereby certify that this plan, specification or report was prepared by me or under my direct supervision and that 1 am a duly Licensed Professional Engineer under the laws of the State of Minnesota. Craig Oswell / Date: Minnesota Registration No. 42341 4