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Randy Liebelt <br />Field Engineer <br />Education <br />BS in Civil Engineering, North Dakota <br />State University <br />Technical Certifications <br />MnDOT — Aggregate Production <br />MnDOT — Grading and Base <br />Tester/Inspector <br />MnDOT — Concrete Field <br />Tester/Inspector <br />MnDOT — Concrete Plant Tester <br />MnDOT — Bituminous Street Inspector <br />MnDOT — Bituminous Plant <br />Tester/Inspector <br />MnDOT — Bridge Construction <br />MnDOT — Concrete Strength Tester <br />Troxler Nuclear Density Gauge and <br />Hazmat <br />OSHA 10-Hour Safety <br />Construction Site Management — <br />Erosion and Stormwater <br />Contact <br />rliebelt@teamAET.com <br />Office' 651-659-9001 <br />Randy Liebelt is a Field Engineer with over 8 years of experience in <br />construction materials observation, testing, and inspection. His <br />background includes performing both quality control (QC) and quality <br />assurance (QA) testing and observations for a wide range of private <br />and public sector clients. He is experienced in supporting field <br />operations to ensure construction materials and practices meet <br />applicable specifications, standards, and client requirements. <br />Relevant Project Experience <br />Word of Peace Church Addition - Rogers, MN 2025-Present <br />This church addition project included the main addition on the north <br />side of the existing building, a new mezzanine overlooking the <br />gymnasium, and extra parking stalls along the northwest drive lane <br />entrance. Randy served as the project manager of the construction <br />materials testing and special inspection services. <br />Greenfield Road Reconstruction - Greenfield, MN 2024-2025 <br />The reconstruction of Greenfield Road consisted of rebuilding and <br />widening the main road core (often stabilizing with geogrid), placing <br />bituminous pavement, upgrading drainage with storm sewer and <br />concrete curb/gutter, and improving site lines. Randy worked with the <br />engineer to perform grading and base inspections and performed <br />plastic concrete testing. <br />169 Redefine - Elk River, MN 2022-2023 <br />This three-year project involved reconstructing all four -lanes of Hwy <br />169 through Elk River from TH-10 to 197th along with improvements <br />for adjacent roadways, constructing four new interchanges, upgrading <br />underground infrastructure and utilities, improving interchange access, <br />and replacing the northbound Hwy 101/169 bridge. Randy worked <br />jointly with MnDOT, the City of Elk River, and Sherburne County <br />project staff as a grading inspector and the lead materials tester. <br />MN Highway 23 North Gap <br />2022 <br />This two-year project reconstructed and expanded nine miles of Hwy <br />23 from two to four lanes between Stearns CR 33 in Paynesville and <br />Hwy 22/Grant Ave SW in Richmond. The project played a vital part in <br />improving traffic flow, corridor performance, capacity, and overall <br />safety. Randy worked with MnDOT as the lead materials tester. <br />February, 2026��AET <br />