--- title: CASE STUDY | Sunnyside, WA | STELCOR Pile description: Using STELCOR pile as an alternative, we helped finish installation three days ahead of schedule in this big foundation project in Seattle, WA. Learn more. image: https://www.idealfoundationsystems.com/hubfs/Imported_Blog_Media/darigold-case-study-ideal-stelcor-1200-11-1024x615.jpg --- [Skip to main content](https://www.idealfoundationsystems.com/blog/case-study-sunnyside-wa-ideal-stelcor-pile#maincontent) [ «  View All Posts ](https://www.idealfoundationsystems.com/learning-center/) # CASE STUDY | Sunnyside, WA | IDEAL STELCOR Pile March 27th, 2015 1 min read By [Bruce Stroyer](https://www.idealfoundationsystems.com/blog/author/bruce-stroyer) ![](https://www.idealfoundationsystems.com/hs-fs/hubfs/Imported_Blog_Media/darigold-case-study-ideal-stelcor-1200-11-1024x615.jpg?width=1024&height=615&name=darigold-case-study-ideal-stelcor-1200-11-1024x615.jpg) **Using the STELCOR DDM (Drilled-In Displacement Pile) as an alternate, the pile count was cut from 246 to 113 and installation was completed 3 days ahead of schedule.** **OVERVIEW:** The manufacturing facility needed 8 new silos and pipe racks with deep foundations to be installed at their working manufacturing facility. The project was designed for helical piles and TBH brought in the [STELCOR Drilled-In Displacement Pile](https://www.idealfoundationsystems.com/stelcor/) as a cost-saving alternate. **CHALLENGE:** There was a time frame of 10 days to install 246 micropiles. With standard micropiles, the installers average 6-8 per day which would have put them well beyond the 10 day limit. The piles needed to be installed in areas with space restrictions and traffic. Because the facility had to remain open during construction, tractor trailers had to pass through the area where the work was being performed. **SOLUTION:** TBH presented the STELCOR Drilled-In Displacement Pile alternate, which reduced the pile count from 246 to 113 – 45 helical piles in phase 1 and 68 STELCOR piles in phase 2. With the faster install time, TBH performed installation during hours when there was little or no truck traffic. Given a 10 day window to install the 68 STELCOR piles to a depth of 20’, they completed the work in 7 days. ![IDEAL STELCOR Piles for Darigold Plant in Sunnyside, WA](https://www.idealfoundationsystems.com/hs-fs/hubfs/Imported_Blog_Media/darigold-case-study-ideal-stelcor-1200-3-204x300.jpg?width=204&height=300&name=darigold-case-study-ideal-stelcor-1200-3-204x300.jpg) ![IDEAL STELCOR Piles for Darigold Plant in Sunnyside, WA](https://www.idealfoundationsystems.com/hs-fs/hubfs/Imported_Blog_Media/darigold-case-study-ideal-stelcor-1200-2-263x300.jpg?width=263&height=300&name=darigold-case-study-ideal-stelcor-1200-2-263x300.jpg) **[Download the Case Study](https://www.idealfoundationsystems.com/hubfs/CASE%20STUDY/DARIGOLD.pdf)** **INSTALLER:** TBH & Associates, LLC Vancouver, WA **GENERAL CONTRACTOR:** Design Group Facility Solutions Seattle, WA **ARCHITECT:** Design Group Facility Solutions Seattle, WA **STRUCTURAL ENGINEER:** Design Group Facility Solutions Seattle, WA **GEOTECHNICAL ENGINEER:** PBS Engineering & Environmental Kennewick, WA **LOADS** 100 tons – 100 kips ultimate compression 45kips/90kips max uplift 2.0kips/4.0kips max lateral **SPECIFICATIONS:** 5.5” pile shaft .304 wall thickness 80 ksi 16” tip or drive plate 12” corrugated grout column 9” solid grout column 8” reverse auger **SOILS + EMBEDMENT DEPTH:** 20’ View soils report **TIME FRAME:** 10 days. Work was completed in 7 days. **[Click to learn more about the STELCOR Pile – Drilled-In Displacement Piles.](https://www.idealfoundationsystems.com/stelcor/)** Topics: [ Case Study ](https://www.idealfoundationsystems.com/blog/topic/case-study) [ Drilled-In Displacement Piles (DDM) ](https://www.idealfoundationsystems.com/blog/topic/drilled-in-displacement-piles-ddm) [ STELCOR ](https://www.idealfoundationsystems.com/blog/topic/stelcor) Don't forget to share this post: ## Related Articles [![](https://www.idealfoundationsystems.com/hs-fs/hubfs/Baltic%20St_.png?width=713&height=401&name=Baltic%20St_.png) ### STELCOR Supports a Complex Development Site in Brooklyn’s Gowanus Neighborhood May 18th, 2026|1 min read ](https://www.idealfoundationsystems.com/blog/stelcor-supports-a-complex-development-site-in-brooklyns-gowanus-neighborhood) [![](https://www.idealfoundationsystems.com/hs-fs/hubfs/16-777x246.jpg?width=777&height=246&name=16-777x246.jpg) ### STELCOR Piles Installed Adjacent to Elevated MTA for Lorimer House Project May 18th, 2026|1 min read ](https://www.idealfoundationsystems.com/blog/stelcor-piles-installed-adjacent-to-elevated-mta-for-lorimer-house-project) [![](https://www.idealfoundationsystems.com/hs-fs/hubfs/image-webp.webp?width=1350&height=900&name=image-webp.webp) ### NYC - 272 STELCOR Piles Installed for a 14-Story Development in Gowanus August 1st, 2025|1 min read ](https://www.idealfoundationsystems.com/blog/nyc-272-stelcor-piles-installed-for-a-14-story-development-in-gowanus) [![](https://www.idealfoundationsystems.com/hs-fs/hubfs/86%20DELANCEY%20web(16)--jpg.jpeg?width=720&height=471&name=86%20DELANCEY%20web(16)--jpg.jpeg) ### NYC - 112 STELCOR® Piles to 30' for a 12-Story Mixed-Use Rental Building June 23rd, 2025|1 min read ](https://www.idealfoundationsystems.com/blog/nyc-112-stelcor-piles-to-30-for-a-12-story-mixed-use-rental-building) [![](https://www.idealfoundationsystems.com/hs-fs/hubfs/Imported_Blog_Media/INSTALL-SNIP-2-WEB.jpg?width=720&height=404&name=INSTALL-SNIP-2-WEB.jpg) ### 5.5″ HELICAL PILES FOR A HOSPITAL PARKING GARAGE RETROFIT December 28th, 2022|1 min read ](https://www.idealfoundationsystems.com/blog/5-5-helical-piles-for-a-parking-garage-retrofit) [![STELCOR® DDMS TOUCHING DOWN AT JFK AIRPORT](https://www.idealfoundationsystems.com/hs-fs/hubfs/Imported_Blog_Media/20220617_140517-WEB-scaled.jpg?width=2560&height=1920&name=20220617_140517-WEB-scaled.jpg) ### STELCOR® DDMS TOUCHING DOWN AT JFK AIRPORT October 31st, 2022|1 min read ](https://www.idealfoundationsystems.com/blog/stelcor-at-jfk) [![](https://www.idealfoundationsystems.com/hs-fs/hubfs/Imported_Blog_Media/install-gap-2.jpg?width=2400&height=1354&name=install-gap-2.jpg) ### 42 STELCOR® DDMS FOR WIND TURBINES IN CALIFORNIA July 25th, 2022|1 min read ](https://www.idealfoundationsystems.com/blog/42-stelcor-ddms-for-wind-turbines-in-california) [![FLYING EXCAVATORS AND STELCOR DDM’S AT A PAPER MILL IN DULUTH, MN](https://www.idealfoundationsystems.com/hs-fs/hubfs/Imported_Blog_Media/duluth-3-web-1.jpg?width=900&height=505&name=duluth-3-web-1.jpg) ### FLYING EXCAVATORS AND STELCOR DDM’S AT A PAPER MILL IN DULUTH, MN June 29th, 2022|1 min read ](https://www.idealfoundationsystems.com/blog/flying-excavators-and-stelcor-ddms-at-a-paper-mill-in-duluth-mn) [![](https://www.idealfoundationsystems.com/hs-fs/hubfs/Imported_Blog_Media/20210611_100954-WEB.jpg?width=2048&height=1536&name=20210611_100954-WEB.jpg) ### 93 STELCOR DDM’S INSTALLED FOR A 7-STORY HOSPITAL ADDITION March 3rd, 2022|1 min read ](https://www.idealfoundationsystems.com/blog/93-stelcor-ddms-installed-for-a-7-story-hospital-addition) [![](https://www.idealfoundationsystems.com/hs-fs/hubfs/Imported_Blog_Media/DSC00162-1.jpg?width=872&height=583&name=DSC00162-1.jpg) ### NYC – 75 STELCOR Piles for 8-Story Cantilevered Condos July 30th, 2021|1 min read ](https://www.idealfoundationsystems.com/blog/nyc-75-stelcor-piles-8-story-cantilevered-condos) [![](https://www.idealfoundationsystems.com/hs-fs/hubfs/Imported_Blog_Media/DC-SEWER-2-150x150-1-1.jpg?width=150&height=150&name=DC-SEWER-2-150x150-1-1.jpg) ### Keeping it Clean in Washington D.C. 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With STELCOR February 2nd, 2018|1 min read ](https://www.idealfoundationsystems.com/blog/keeping-it-clean-washington-d-c-stelcor) ```json { "@context" : "https://schema.org", "@type" : "BlogPosting", "author" : { "@type" : "Person", "name" : "Bruce Stroyer", "url" : "https://www.idealfoundationsystems.com/blog/author/bruce-stroyer" }, "dateModified" : "2025-01-20T18:36:41.469Z", "datePublished" : "2015-03-27T14:50:38.000Z", "headline" : "CASE STUDY | Sunnyside, WA | STELCOR Pile", "image" : [ "https://www.idealfoundationsystems.com/hubfs/Imported_Blog_Media/darigold-case-study-ideal-stelcor-1200-11-1024x615.jpg" ], "mainEntityOfPage" : { "@id" : "https://www.idealfoundationsystems.com/blog/case-study-sunnyside-wa-ideal-stelcor-pile", "@type" : "WebPage" }, "publisher" : { "@type" : "Organization", "logo" : { "@type" : "ImageObject", "url" : "https://www.idealfoundationsystems.com/hubfs/ASSETS/logos/Ideal-Logo.png" } } } ```