Court approves IGMP #2 addendum as jail conversion work advances; GMP projected at $55.5–$56.5 million

McLennan County commissioners on April 28 approved an addendum to the county’s construction manager‑at‑risk agreement to allow work covered by Interim Guaranteed Maximum Price (IGMP) proposal package No. 2 to proceed, the court heard during a construction progress update on the courthouse conversion project.

The county’s construction representative told the court the official first day of work on the project was Feb. 24, 2025, and that selective demolition, mechanical‑electrical‑plumbing removals and surface blasting are complete in many areas. “Our official first day of work on the project was 02/24/2025,” the presenter said. He said crews have cleaned concrete surfaces in preparation for fiber‑reinforced polymer (FRP) wrapping, and that the FRP subcontractor was scheduled to mobilize the following Monday.

Why it matters: the court was asked to approve addendum No. 2 and the IGMP package so the county can place orders for stone, aluminum/glass and other long‑lead items needed to keep the schedule. The construction representative told the court that the county is trending toward a total Guaranteed Maximum Price (GMP) for the entire conversion of about $55.5 million to $56.5 million and that the IGMP #2 request — the procurement and subcontracting values assembled for envelope work and related scope — totals $18,783,038.

Project status and near‑term milestones: the construction representative reported that five of eight drilled piers in the basement were complete and crews were drilling pier No. 6, with the last two piers expected to follow within days. The team said it targets starting new structural steel erection in the basement in June after the remaining concrete foundations are poured. The presentation also described work to install temporary transformer pads and relocate existing transformers in May so the old jail can be taken off its current electrical service when new service is ready.

Budget and procurement: the presenter walked the court through the firm’s range estimates and post‑bid reconciliation. Based on bid results and scope reviews, the firm said it expected the total GMP to fall between $55.5 million and $56.5 million when IGMP package #3 (the final GMP submission) is presented in the coming weeks. He described IGMP #2 as containing the masonry/stone cladding, aluminum and glass, roofing and metal stud framing subcontract scopes; the proposed dollar amount for IGMP #2 was shown as $18,783,038.

Court action and next steps: after the presentation the court voted to record the construction progress update and then approved the requested addendum and IGMP #2 by voice vote. The construction manager said it will return to the court within a few weeks with IGMP #3 (the full GMP) and a projection comparing the final GMP to prior budget amounts.

The court’s approvals authorize the county and the construction manager to finalize and execute subcontracts included in IGMP #2 and to commence procurement and production activities for those scopes. The county will receive an updated GMP request when the remaining bid reconciliations and scope reviews are complete.

What the court did not decide: the court approved the addendum and the IGMP package to allow procurement and subcontract execution; commissioners did not yet approve a final GMP. Further vetting and a subsequent court agenda item were promised for the final GMP presentation.