Change Order Notice_2305 Buwick Change Order #1

This solicitation is a change order (Change Order #1) to an existing contract for the Office of Mines and Minerals. The amendment modifies the primary lake outlet structure: the original precast concrete structure will be replaced with a larger precast box structure, and the inlet pipe will be upgraded from a concrete pipe to a longer ductile‑iron pipe. The work falls under NIGP 912‑44 (Excavation Services) and is classified as an amendment/change order with no dollar increase indicated. • Replace existing precast concrete structure with larger precast box. • Switch inlet piping from concrete to longer ductile‑iron pipe. • Scope limited to structural modification and associated excavation.