Carolina Crossroads I-20/26/126 Corridor Improvement Project - Phase 3D – I-26/I-126 System Interchange

The South Carolina Department of Transportation (SCDOT) is seeking qualified firms to submit Statements of Qualifications (SOQs) for the design‑build of the I‑26/I‑126 System Interchange, a key component of the Carolina Crossroads I‑20/26/126 Corridor Improvement Project Phase 3D. The effort covers full‑scope highway design and construction services, from preliminary engineering through final construction, to upgrade traffic flow and safety in the Lexington and Richland County corridor. • Design‑build delivery method – a single contract for both design and construction. • Scope includes all phases of highway design, utility coordination, right‑of‑way acquisition, and construction of the interchange. • Candidates must demonstrate experience with large‑scale transportation projects, especially complex interchanges and urban corridor improvements. • Submissions are due by September 24, 2026 (10:00 am) and must include a detailed SOQ illustrating past performance, technical capability, and team qualifications. • Project location is in Lexington and Richland Counties, SC, requiring familiarity with local regulations and stakeholder engagement.