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Sema Construction Leads $588M I‑35 Merge Project
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Description
TxDOT awarded the I‑35/35E/35W Merge reconstruction project to Sema Construction under a $588.8 million contract, 18 percent above the engineer’s estimate. The 56‑month project began in January 2025 and is scheduled for completion in January 2030.
Contract Details
Contract Amount
$588,780,841
Vendor
SEMA CONSTRUCTION
Agency
Sanctuary Mud 2 Of Denton County, TX
Contract Type
CONSTRUCTION
Document Date
April 29, 2026
Contract Term
56 months of barricades; January 13, 2025 – January 2030 (anticipated completion)
Renewal Date
2030-01-31
Renewal Info
Long‑term construction contract with fixed working days; no renewal provisions mentioned.
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