--- title: DFW Connector I-635 SH 121 Interchange Completion description: Positive impact of DFW Connector I-635/SH 121 Interchange to be felt across North Texas. HVJ Associates proud to be on team that made it happen. image: https://www.hvj.com/hubfs/DFW%20Connector%20-%20Post%20Card%20Pic%20%26%20Social%20Media.jpg --- [![HVJ Logo](https://www.hvj.com/hs-fs/hubfs/HVJ%20logo_141x71.png?width=110&height=71&name=HVJ%20logo_141x71.png "HVJ Logo")](https://www.hvj.com/) ** [ Let's talk ](https://www.hvj.com/contact-us) ** ** Geotechnical Engineering Soil, rock, and groundwater conditions at every site are different. We assess the specific site conditions and design earth structures (slopes, channels, and dikes), foundations (retaining walls, bridges, buildings, tanks), and subsurface structures (clarifiers, lift stations, buried utilities, tunnels) to economically achieve the specific project objectives. 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We offer a rewarding work experience, opportunities for advancement and competitive benefits. Learn More → Employee Stories Check out what our employees say and learn about the HVJ experience! Great people and even greater teams are behind every project. Learn More → Current Openings We're always looking for talented individuals who fit our culture and can bring new perspectives and experiences to our growing teams. Learn More → The Opportunity Own a successful engineering business by adding our proven systems to your engineering talent and network. Learn More → How It Works Help us branchise – you help us build a branch office and then convert it into your own franchise. Learn More → Who's A Fit? Are you energetic and confident? See if this might be an opportunity that fits you. Learn More → FAQs What do you want to know?  Find the answers to common questions. 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Learn More → Search **Menu** ** ** [![Let's Talk](https://hubspot-no-cache-na2-prod.s3.amazonaws.com/cta/default/5496911/6233d0db-c76c-4678-9152-08331c17b6f1.png)](https://hubspot-cta-redirect-na2-prod.s3.amazonaws.com/cta/redirect/5496911/6233d0db-c76c-4678-9152-08331c17b6f1) ![](https://www.hvj.com/hubfs/DFW%20Connector%20-%20Banner-1.jpg) [Announcements](https://www.hvj.com/blog/tag/announcements) | [Dallas](https://www.hvj.com/blog/tag/dallas) | 1 min read # DFW Connector I-635 SH 121 Interchange Completion Written by [HVJ Associates](https://www.hvj.com/blog/author/hvj-associates) November 2, 2021 ![TXDOT logo](https://www.hvj.com/hs-fs/hubfs/TXDOT%20logo.png?width=213&name=TXDOT%20logo.png)HVJ Associates® is excited to announce that several years of dedication and hard work by the [Texas Department of Transportation](https://www.dfwconnector.com/newsroom/upcoming-events/i-635-sh-121-virtual-ribbon-cutting-ceremony/) have culminated with the completion of the DFW Connector I-635 SH 121 Interchange. The project is open to traffic, and their accomplishment is improving transportation for residents all across North Texas.    The Interchange project saw TxDOT take on major challenges to improve the quality of travel for North Texas residents. It was a $370 Million project with many moving pieces and high standards for safety and integrity. Their construction and modifications spanned 3 miles, 20 bridges, and used 220,000 CY of concrete pavement. Through tireless efforts, TxDOT widened highway sections and added new connections that will offer Texas motorists safer and more reliable travel experiences.    Starting in August 2018, HVJ had the immense privilege to support [Jacobs Engineering](https://www.jacobs.com/) while contributing to TxDOT’s efforts to improve North Texas transportation. HVJ performed its role by providing accurate and on-time Owner Verification and Inspection services, in addition to more general guidance with Engineering Judgment Recommendations. Working on the Interchange with TxDOT gave HVJ the opportunity to positively affect the surrounding communities.   The DFW Connector I-635/SH 121 Interchange is an extraordinary achievement whose positive impact will be felt across North Texas. TxDOT has performed a great service to the people of Texas, and HVJ Associates is proud to have been part of the team to make it happen.   Previous Story [← 5 Questions With An Expert: Hossam Esmail](https://www.hvj.com/blog/5-questions-with-an-expert-hossam-esmail) [** ](https://www.hvj.com/blog) Next Story [Welcome John Bilyeu, 25-year TxDOT Veteran →](https://www.hvj.com/blog/welcome-john-bilyeu-25-year-txdot-veteran) ## You May Also Like These Stories on Announcements [![](https://www.hvj.com/hubfs/Austin%20Compressed-1.jpg) ](https://www.hvj.com/blog/project-announcement-city-of-austins-pilot-knob-water-line-project) [Announcements](https://www.hvj.com/blog/tag/announcements) ### [Project Announcement: City of Austin’s Pilot Knob Water Line Project](https://www.hvj.com/blog/project-announcement-city-of-austins-pilot-knob-water-line-project) May 18, 2026 | 1 min read [![](https://www.hvj.com/hubfs/NRA.jpg) ](https://www.hvj.com/blog/nueces-river-authoritys-new-water-for-south-texas-project) [Announcements](https://www.hvj.com/blog/tag/announcements) ### [Nueces River Authority's New Water for South Texas Project](https://www.hvj.com/blog/nueces-river-authoritys-new-water-for-south-texas-project) March 17, 2026 | 1 min read [![](https://www.hvj.com/hubfs/Bird.jpg) ](https://www.hvj.com/blog/introducing-jodi-bird-business-development-manager-for-north-texas) [Announcements](https://www.hvj.com/blog/tag/announcements) ### [Introducing Jodi Bird, Business Development Manager for North Texas](https://www.hvj.com/blog/introducing-jodi-bird-business-development-manager-for-north-texas) March 10, 2026 | 1 min read ## No Comments Yet Let us know what you think #### HVJ Associates, Inc. 6120 S. 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