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HomeMy WebLinkAbout1014 Burrowing Owl Dr - Special Inspections/Engineering - 11/19/2007November 19, 2007 Shadow Creek Homes 12000 Zuni Street, Suite 14 The Arabian Horse Center Building Westminster, Colorado 80234 Attn: Mr. Toby Terhune Re: Foundation Excavation Observation Provincetowne Residential Development 1014 Burrowing Owl Drive — Lot 3, Block 13 Fort Collins, Colorado Terracon Project No. 20075058 Mr. Terhune: Irerracon Consulting Engineers & Scientists 301 North Howes Fort Collins, Colorado 80521 Phone 970.484.0359 Fax 970.484.0454 www.terracon.com On November 19, 2007, a representative from Terracon observed the foundation excavation for the above referenced lot located within the Provincetowne Subdivision in Fort Collins, Colorado, as requested. The soil conditions exposed within the upper and lower foundation excavations consisted of a sandy lean clay fill material underlain by native sandy lean clay. These soil strata are similar to those described in our "Geotechnical Engineering Report" prepared for this portion of the site, Project No. 20075058 dated July 11, 2007. Based on our observations, the structure could be supported by a spread footing foundation system designed in accordance with the recommendations set forth in the report. At the time of the observation, no free groundwater or bedrock was encountered within 3-feet of the foundation elevation. Based on recommendations set forth in the Geotechnical Engineering Report, it is our opinion a dewatering system should be placed around the lower level of the structure. The drainage system should be designed and constructed in accordance with the recommendations set forth in the report. Sincerely, Terracon Consultants, Inc. Paul D. Graham Engineering Geologist Copies to: (2) Addressee ...-Jr 40208 p' L.'Denton, II, P.E. Geotechnical Department Manager Delivering Success for Clients and Employees Since 1965 More Than 80 Offices Nationwide November 21, 2007 Shadow Creek Homes 12000 Zuni Street, Suite 14 The Arabian Horse Center Building Westminster, Colorado 80234 Attn: Mr. Toby Terhune Irerracon Consulting Engineers & Scientists Re: Foundation Footing Sizes, Wall Steel and CEE Observations Provincetowne Residential Development 1014 Burrowing Owl Drive — Lot 3, Block 13 Fort Collins, Colorado Terracon Project No. 20075058 Dear Mr. Terhune: 301 North Howes Fort Collins, Colorado 80521 Phone 970.484.0359 Fax 970.484.0454 www.terracon.com A representative from Terracon observed the interior and exterior footing sizes and wall steel reinforcement, including the "concrete -encased electrode" (CEE), for the above referenced lot on November 20, and November 21, 2007, as requested. Observations made during the foundation construction indicate that the interior and exterior footing sizes, wall steel, and CEE placement were in general accordance with the plans for this project. Sincerely, Terracon Consultants, Inc. �6� "&VJ- " Paul D. Graham Engineering Geologist Copies to: Addressee (2) p�jp L. D%� �� 02: 40208 :Z ,It(2((a7 11, "P. E. Geotechnical Department Manager Delivering Success for Clients and Employees Since 1965 More Than 80 Offices Nationwide November 28, 2007 Shadow Creek Homes 1200 Zuni Street, Suite 14 Westminster, Colorado 80234 Attn: Mr. Toby Terhune Re: Exterior Perimeter Drain Observation Provincetowne Residential Development 1014 Burrowing Owl Drive — Lot 3, Block 13 Fort Collins, Colorado Terracon Project No. 20075058 Dear Mr. Terhune: Irerracon Consulting Engineers & Scientists 301 North Howes Fort Collins, Colorado 80521 Phone 970.484.0359 Fax 970.484.0454 www.terracon.com A representative from Terracon observed the exterior perimeter drain at the above referenced address within the Provincetowne Subdivision on November 28, 2007, as requested. At the time of our site visit, a 4-inch diameter, perforated pipe had been placed around the exterior perimeter of the basement foundation and was observed to exhibit positive gravity flow toward an interior sump. The pipe was observed to have a layer of %-inch washed gravel beneath the pipe. The filter fabric and %-inch washed gravel were observed to be on -site and appeared ready for installation above the pipe. The waterproof dampening was also observed and in our opinion was uniformly applied to the exterior foundations. The portion of the exterior perimeter drainage system observed was constructed in general accordance with the plans and specifications for the project. Sincerely, Terracon Consultants, Inc. f�1^'v''1'v✓C`� V Paul D. Graham Engineering Geologist Copies to: (2) Addressee 2. -o 40208 a; �0c;,(�2�lf�7�� ass �•NA/LE��` aymond L. Denton, II, E. Geotechnical Department Manager Delivering Success for Clients and Employees Since 1965 More Than 80 Offices Nationwide