Sole Source Determination / Amendment Request – NM DOT – CN 6101371

This contract is a four‑year, sole‑source professional services agreement with Bohannan Huston, Inc. to perform flood‑plain and hydraulic modeling for the Rio Puerco River (Gallup, NM) as part of the Allison Road Corridor project and to satisfy requirements of a Federal Railroad Crossing Elimination grant and FEMA Zone AE mapping. The scope is divided into six major task groups covering data collection, hydrologic analysis, multiple 2‑D hydraulic model runs (historic and current conditions, with/without levees and unpermitted fill), and floodway analysis, each requiring draft and final deliverables, stakeholder and FEMA reviews, and virtual meetings. The amendment dated 04 July 2026 adjusts milestone dates but does not change the contract value, which remains $415,064.13 (plus estimated taxes). The work is time‑sensitive, and the agency justified the sole‑source award on the basis that BHI is the engineer of record with proprietary plans, and changing contractors would jeopardize grant funding and project timelines. • Professional engineering services for flood‑plain modeling (hydrology, 2‑D hydraulic, floodway). • Six task groups with multiple deliverables and stakeholder/FEMA review cycles. • Fixed contract value of $415,064.13 for a four‑year term, with milestone dates adjusted via amendment.