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HomeMy WebLinkAbout1820 Prairie Ridge Dr - Special Inspections/Engineering - 07/19/2011/ Y;�. d�� &L July 19, 2011 The Pauls Corporation 270 St. Paul Street Denver, Colorado 80206 Attn: Mr. Landon Williams Re: Wall Steel Reinforcement Observation Lot 35 — Harmony Ridge Fort Collins, Colorado EEC Project No. 11-01-135 Mr. Williams: rE EJ EARTH ENGINEERING COMPANY, Mc. Earth Engineering Company, Inc. (EEC) personnel have completed the construction observation services you requested for the referenced project. Those services included an observation of foundation wall reinforcement steel for the referenced residence. The results of the observations completed by EEC personnel are included with this report. On July 18, 2010, EEC personnel observed the reinforcing steel for the foundation walls for the referenced residence. The reinforcing steel observed at the garage and crawlspace foundation walls consisted of two #5 bars placed horizontally at the top and bottom of the walls. The reinforcing steel observed at the basement foundation walls consisted of two #5 bars placed horizontally at the top and bottom of the foundation walls. One #4 bar was placed vertically and horizontally at approximately 12 and 18 inches on -center throughout the length and height of the basement walls at various locations. In addition, #4 corner bars were placed horizontally at 18 inches on -center throughout the height of the basement walls at two locations. Lap lengths observed were checked and appeared to meet the minimum required lengths. In addition to the reinforcing steel observed, the Uffer ground (a.k.a. concrete encased electrode) was also observed. The Uffer grounding rod consisted of a single piece of #4 rebar tied to the bottom horizontal reinforcement within the forms and extended approximately 1 foot above the foundation wall at the northeast corner area of the garage. P.-t� Box 27 I Yl'28 4932_2 FORT _COLLINS COLORADO 805,27-1 42-6, 201,7"N.6'LORADO 8,09=49'9322 (970) 2.24-1'522 (FAx) 663-028.2 ;(7 1 9) , 442=68; 3 (FA)0 447-9635 EEC Project No: 11-01-135 November 2, 2011 Page 2 Earth Engineering Company, inc; At the time of our observations, it. appeared that, the wall reinforcing steel had been placed in general accordance with the construction. plans prepared by Dossey/Sudik Structural Engineers (Plan.4).dated May 18, 2011. We appreciate the opportunity to be of service to you on this project. If you have any questions regarding this report, or if' we can be of further service to you in any way, please do not hesitate to contact us. Very truly yours,: Earth Engineering Company, Inc. �pU REG�S 0 r r ' a- C • 3 724 Michael J. Coley, P.E. Principal Engineer MJC/dla cc Mr.,Landon Williams."Qandon:*illia ns@ "aup lscoip.crarh) November 2, 2011 The Pauls Corporation 270 St. Paul Street Denver, Colorado 80206 Attn: Mr. Landon Williams Re: Foundation Bearing Observation Lot 35 — Harmony Ridge Fort Collins, Colorado EEC Project No. 11-01-135 Mr. Williams: EARTH ENGINEERING COMPANY, INC. As requested, Earth Engineering Company, Inc. (EEC) personnel have completed an observation of the foundation bearing materials for footing foundations for the referenced project. The results of those observations along with site photos are included with this report. On July 14, 2011, EEC personnel observed foundation bearing materials for the foundation footings for the referenced residence. We understand the residence will be a lightly loaded wood frame structure constructed on a full basement. At the time of our field observations, the building area had been excavated to approximate foundation - bearing elevation and the footing forms were already in place. The garage and crawlspace footing foundation bearing level was at a depth of approximately 3 feet below original grade. Reddish brown clayey sand materials with gravel were observed at foundation bearing level at that location. The clayey sand materials were underlain by reddish brown sand and gravel materials at a depth of approximately 1 foot below the garage and crawlspace foundation bearing level. The materials observed in the basement excavation area generally consisted of reddish brown sand and gravel materials with cobbles. Dynamic cone penetrometer tests indicated that the in -situ clayey sand and sand and gravel were generally dense in consistency. D Box 2714b28 Do ,. 76 FORT COLLINS, C©LORADO 80527- 1 428'. CCU€ RACic7.S('RitJGS, .CoLr>Rnoo 80949 9322. (9'70) 224- 1 522 (Five) (56;3-0282 f 7 I' 9}..442 6$ 13fFait7 447 9835 Earth Engineering Company, Inc. EEC 'Project -No. 11-01-13.5 November 2, 2011 Page 2 A swell/consolidation test was performed on a representative sample of the foundation bearing materials in the garage/crawlspace -foundation 'bearing elevation to determine swell potential. with variation in moisture content. The clayey sand materials at the garagelcrawlspace foundation bearing, level showed low potential for swelling at present moisture and density conditions. The materials observed in the excavation were generally consistent with those outlined in the soils reportprepared by Earth Engineering Company, Inc., dated July 10, 2006. Based on the results of the outlined field testing and .observations, it is our opinion the in -situ materials could be used for support of the footing foundationsat the design maximum net allowable total.load soil bearing pressure of 1500 psf. We appreciate the opportunity to be of service to you on this project. If you have any questions regarding this report, or if we can be of further service to you, in any way, please do not hesitate to contact us.. Very truly ,yours, Earth Engineering Company, Inc. Michael..J..Coley, P.E. Principal Engineer cc: Mr. Landon Williams.(landon,witharns( paulscom—con ) No Text No Text No Text No Text