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Home My WebLink About3815 Precision Dr - Special Inspections/Engineering - 09/05/2013Rid q-5-13 EARTH ENGINEERING COMPANY, INC. February 6, 2013 LandMark Solutions, Inc. 1170 West Ash Windsor, Colorado 80550 Attn: Mr. Bob Brex Re: Foundation Bearing Observation 1d 3815 Precision Drive- 6 Plex 11� 1 �3 i hyu 1 U Fort Collins, Colorado EEC Project No. 12-01-190 Mr. Brex: 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 January 8, 2013, EEC personnel observed foundation bearing materials for the foundation footings for the referenced multi -family residence. We understand the multi -family residences will be lightly loaded wood frame structures constructed on full basements. At the time of our field observations, the building area had been excavated to approximate foundation -bearing elevation. Reddish brown sandy to very sandy clay soils were observed at foundation bearing level at that location. A hand auger boring was excavated to a depth of approximately 3 feet below the basement foundation bearing level revealed like materials to the depths explored. Dynamic cone penetrometer tests indicated that the in -situ materials were generally stiff to very stiff in consistency. A swell/consolidation test was performed on a representative sample of the foundation bearing materials at the basement foundation bearing elevation to determine swell potential with variation in moisture content. The reddish brown sandy to very sandy clay soils at the basement foundation bearing level showed low potential for swelling at present moisture and density conditions. P.O. Box 271428 P.O. Box 49322 FORT COLLINS, COLORADO 80527- 1 428 COLORADO SPRINGS, COLORADO 80949-9322 (970) 224- 1 522 (FAx) 663-0282 (7 19) 442-68 1 3 (FAx) 447-9635 Earth Engineering Company, Inc. EEC Project No. 12-01-190 February 6,2013 Page 2 Areas of loose soil remained in the open excavation after excavating; therefore, any loose soils beneath the foundation elements should be removed prior to placement of the foundation concrete. The materials observed in the excavation were generally consistent with those outlined in the soils report prepared by Earth Engineering Company, Inc., dated September 21, 2012. Based on the results of the outlined field testing and observations, it is our opinion the in -situ, natural sandy to very sandy clay materials could be used for support of the footing foundations at the design maximum net allowable total load soil bearing pressure of 1500 psf. Care should be taken to avoid placing any foundation footing elements and floor slabs on areas of frozen soil prior to concrete placement. 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. RPp0 RIG/Sr p ,.-•�oslH-..F ' 3 24' • Michael J. Co ey, P. . Principal Engineer MJC/d1a cc: Chris Douglass — LandMark Solutions, Inc.(gdouglass(iblandmarksolutionsinc.com) SWELL / CONSOLIDATION TEST RESULTS Material Description: Reddish Brown Sandy to Very Sandy Clay Sample Location: S-2 @ 5.5' (Basement Foundation Bearing Level) Liquid Limit: -- IPlasticity Index: - % Passing #200: -- Beginning Moisture: 10.5% 1Dry Density: 105.3 pcf Ending Moisture: -- Swell Pressure: <500 psf % Swell @ 500 psf: None 10 8 3 6 4 c 2 m E d 0 0 c m 2 Vf a t r dded a -2 a -4 0 -0 a �o C -6 O U -8 -10 0.01 0.1 1 10 Load (TSF) Project: 3815 Precision Drive - 6 Plex Fort Collins, Colorado Project No.: 12-01-190 Date: January 2013 February 6, 2013 LandMark Solutions, Inc. 1170 West Ash Windsor, Colorado 80550 Attn: Mr. Bob Brex Re: Foundation Drain and Damp Proofing Observation 3815 Precision Drive Fort Collins, Colorado EEC Project No. 12-01-190 Mr. Brex: EARTH ENGINEERING COMPANY, INC. As requested, Earth Engineering Company, Inc. (EEC) personnel have completed the construction observation services you requested for the referenced project. Those services included observations of the foundation drain placement and damp proofing at the referenced address. The results of those observations are included with this report. Two site visits were needed to complete these observations. On January 24t° and February 4`°, 2013, EEC personnel observed the foundation drain for the referenced project. The foundation drain consisted of 6-inch perforated pipe bedded in gravel around the below grade exterior perimeter of the structure which appeared to slope to drain towards two basement sump pits located in the east and west end units. The gravel was covered with filter fabric. The damp proofing consisted of a grey spray -on coating that appeared to cover all exterior below grade living areas of the basement walls. 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. 0 REG/S v 3 724 m e Michael J. Coldy, P Principal Engineer Chris Douglass — LandMark Solutions, Inc. —(couglass(a)landmarksolutionsinc.coni) P.O. Box 271 428 P.O. Box 49322 FORT COLLINS. COLORADO 80527- 1 428 COLORADO SPRINGS. COLORADO 80949-9322 (970) 224-1522 (FAx) 663-0282 (719) 442-6813 (FAX) 447-9635 February 6, 2013 LandMark Solutions, Inc. 1170 West Ash Windsor, Colorado 80550 Attn: Mr. Bob Brex Re: Wall Steel Reinforcement Observation 3815 Precision Drive — 6 Plex Fort Collins, Colorado EEC Project No. 12-01-190 Mr. Brex: EARTH ENGINEERING COMPANY, INC. 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 multi -family residence. The results of the observations completed by EEC personnel are included with this report. Two site visits were needed to complete the observations. On January 16t' and January 21 ”, 2013, EEC personnel observed the reinforcing steel for the foundation walls for the referenced multi -family residence. The reinforcing steel observed at the porch and basement walls consisted of two #5 bars placed horizontally at the top and bottom of the foundation walls along with one #5 bar placed horizontally at the approximate mid -height of the foundation walls. In addition, one #5 bar was placed vertically at approximately 24 inches on -center throughout the length of the walls. 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 #5 rebar tied to the bottom horizontal reinforcement within the forms and extended vertically approximately 1 foot above the foundation wall at the northwest corner of the west unit and at the northeast corner of the east unit. P.O. BOX 271 428 P.O. BOX 49322 FORT COLLINS. COLORADO 80527- 1 428 COLORADO SPRINGS, COLORADO 80949-9322 (970) 224-1522 (FAX) 663-0282 (719) 442-6813 (FAX) 447-9635 Earth Engineering Company, Inc. EEC Project No. 12-01-190 February 6, 2013 Page 2 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 Realarchitecture, Project No. 1107, dated October 8, 2012. 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. gyp, .•��osEFA,*-. 3 724 Michael J. C ley P.E. Principal Engineer MJC/dla cc: Chris Douglass — LandMark Solutions —(cdout;lass(u)landmarksolutionsinc.com) EARTH ENGINEERING COMPANY, INC. February 6, 2013 LandMark Solutions, Inc. 1170 West Ash Windsor, Colorado 80550 Attn: Mr. Bob Brex Re: Basement Foundation Footing Observation 3815 Precision Drive — 6 Plex Fort Collins, Colorado EEC Project No. 12-01-190 Mr. Brex: Earth Engineering Company, Inc. (EEC) personnel have completed the construction observation services you requested for the referenced project. Those services included an observation of the foundation footing dimensions placed for the referenced address. The results of the site observations completed by EEC personnel are included with this report. On January 9, 2013, EEC personnel observed footing foundation widths for the foundation footings for the above referenced single-family residence. The basement footings were approximately 24, 26 and 30 inches wide by 8 inches thick at various locations. Two #5 bars were placed horizontally and continuous along with one #5 bar placed transversely at approximately 20 inches on -center throughout the length of the footings. At the time of our observations, it appeared that the foundation footing dimensions and observed reinforcing steel had been placed in general accordance with the construction plans prepared by Realarchitecture, Project No. 1107, dated October 8, 2012. P.O. BOX 271428 P.O. Box 49322 FORT COLLINS, COLORADO 80527- 1428 COLORADO SPRINGS, COLORADO 80949-9322 (970) 224-1522 (FAX) 553-0282 (719) 442.6813 (FAX) 447-9635 Earth Engineering Company, Inc. EEC Project No. 12-01-190 February 6, 2013 Page 2 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. 0 REG I �O�•�ioseF,y TF,p • 35 24 • ASS. ...... •' G Michael J. Coley, E. Principal Engineer MJC/dla cc: Chris Douglass — LandMark Solutions —(couglassQlandmarksolutionsinc.com)