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Home My WebLink About750 Jerome St - Special Inspections/Engineering - 05/26/2016May 26, 2016 tENGINEERING Project No: 2873-01-15 Tikchik LLC 238 Cajetan Street Fort Collins, Colorado 80524 Attn: Jesse and Amy Laner Re: Lots G-1 to G-6, Block 5, Old Town North; Fort Collins, Colorado 750 Jerome Street — Detached Garages a4eo ¢ /# S Bldg. Permit #Is B1508508 / B1508510 / B1508512 / B1508521 / B1508524 / B1508543 Dear Mr. and Mrs. Laner, Excavation observations were completed by Soilogic, Inc. during the period of Tuesday, May 3, 2016 to Saturday, May 7, 2016. It is our understanding that during these observations, Soilogic, Inc. directed the excavation to extend through all undocumented near -surface fill material and as a result, the excavation was deeper than anticipated, requiring taller foundation walls. In lieu of installing taller foundation walls, the contractor decided to place approved, compacted backfill material in order to raise the elevation of the excavation. Testing of the overexcavation/backfill materials was also completed by Soilogic, Inc. during the above referenced period. A residential site observations report summarizing the observations and testing results was prepared by Soilogic, Inc., titled "Residential Site Observations Report; Lots M1 — M6 and GI — G6, Block 5, Old Town North Subdivision; Jerome Street, Fort Collins, Colorado"; Soilogic Project # 15- 1216; report dated May 18, 2016. Allowable soil bearing capacities noted include a maximum net allowable soil bearing pressure of 1,500 pounds per square foot (dead load plus full live load), and a minimum dead load pressure of 500 pounds per square foot. The above referenced residential site observations report by Soilogic, Inc. has been attached for immediate reference. These lots are suitable for a spread footing foundation system. The foundation plan for the proposed detached garages prepared by Shear Engineering Corporation dated December 2015 was used. Footings were designed for a maximum allowable bearing capacity of 1,500 pounds per square foot (dead load plus full live load) and a minimum dead load of 500 pounds per square foot according to the recommendations of the site -specific geotechnical exploration report prepared by Soilogic, Inc. titled "Geotechnical Subsurface Exploration Report; Lots M1 - M6 and G1 - G6, Old Town North Subdivision; Jerome Street; Fort Collins, Colorado'; Soilogic Project #15-1216; report dated September 9, 2015. Shear Engineering Corporation was present on Wednesday, May 18, 2016 and Thursday, May 19, 2016 for fi2gtjpg formwork and footing reinforcing placement observations. Shear Engineering Corporation was present on Wednesday, May 25, 2016 for foundation wall reinforcing placement observations. These observations were made to confum that footing formwork and reinforcing placement and foundation wall reinforcing placement were completed in substantial compliance with the direction, details and specifications noted on the foundation plan and with modifications approved by Shear Engineering Corporation during construction. 9 N A R, 17 3*05FP1 4836 S. College, Suite 12 Ft. Collins, CO 80525 (970) 226-5334 Fax (970) 282-0311 www.shearengineering.com PAGE 2 May 26, 2016 Project No: 2873-01-15 Re: Lots G1— G6, Block 5, Old Town North; Fort Collins, Colorado 750 Jerome Street —Detached Garages ✓ Bldg. Permit #'s B1508508 / B1508510 / B1508512 / B1508521 / B1508524 / B1508543 All footing formwork and footing reinforcing placement and foundation wall reinforcing placement was completed in substantial compliance with the direction, details and specifications noted on the foundation plan and with modifications approved by Shear Engineering Corporation during construction. During footing formwork and footing reinforcing placement observations, Shear Engineering Corporation noted that the detached garage footings are being installed in two separate pours. The first footing pour, on Wednesday, May 18, 2016 consisted of the rear detached garage footings only. The rear detached garage footings were formed to be twelve inches (12") thicker than specified on the plans (i.e. 20" thick vs. 8" thick). This is so the concrete contractor can use three foot (3') tall wall forms at the rear foundation wall. Due to site limitations and access issues, three foot (3') tall wall forms must be used at the rear foundation wall otherwise the exterior wall form would have to be abandoned in place. Shear Engineering Corporation directed the installation of additional rebar extending from the rear footing forms so that the second footing pour is sufficiently tied to the first footing pour. The second footing pour, on Thursday, May 19, 2016, consisted of the remainder of the detached garage footings. The remainder of the detached garage footings installed with the second pour were installed per plan. During footing formwork and footing reinforcing placement observations, Shear Engineering Corporation verified that Ufer ground rods were sufficiently tied to the strip footing reinforcement mats and extend vertically to meet generally accepted Ufer ground installation requirements. The Ufer ground rods placed with footing reinforcement meet generally accepted Ufer ground installation requirements. If you have any questions concerning our observations, please call us at (970) 226-5334 Sincerely, Brian A. Bruckbauer, P.E. Shear Engineering Corporation BAB / bws attachment INDU ZJ Oct, aRG�s�, O Z 50077 cc: City of Fort Collins Building Department Dave Phillips; Philgreen Construction, Inc.