ADDENDUM%20NO%201%2026017%202026%20Water%20Mains%20Replacement

The City of Salina’s 2026 Water Mains Replacement project (ID 26017) calls for the removal and replacement of aging water‑main infrastructure, associated valve boxes, and related roadway/sidewalk concrete work. The addendum clarifies technical requirements, such as minimum excavation depths, shoring responsibilities, and material standards (ductile‑iron pipe pressure classes, Type K copper for short services). Bidders may choose open‑cut trenching or directional boring, with two mandatory directional bores under an existing storm sewer. No monetary values or schedule dates are disclosed in this addendum. • Revised general notes require minimum 24‑in. box depth, 6 in. of commercial‑grade topsoil, and contractor‑provided OSHA‑compliant shoring. • Specification changes remove pipe‑thickness constraints for directionally bored pipe; ductile‑iron pipe must meet Pressure Class 350 (≤ 12 in.) or Class 250 (≥ 16 in.). • Meter‑pit dimensions and copper service‑line requirements are detailed; adapters for sub‑1‑in meters must be supplied by the contractor. • Both open‑cut and directional‑boring methods are permitted; two directional bores are mandatory beneath a storm sewer.