The Plainedge Public Library in Nassau County is doing the thing that almost never happens in the library market: not a renovation, not an addition — a teardown and full ground-up replacement. Voters approved a $16,865,795 bond last October, 876 votes to 425, and the construction money now hits the street as four prime contracts bidding September 10 at 11 a.m.: general construction, plumbing and fire protection, HVAC, and electrical with fire alarm.

The new building runs about 24,000 square feet on the site of the current 1968 structure, and the contract divisions span the whole book — concrete, masonry, metals, openings, finishes, conveying, fire suppression, communications, earthwork. For Long Island's mid-sized primes and mechanical shops, four separate contracts on one voter-funded building is the best kind of procurement: direct contracts with the owner, no GC markup between a trade firm and the work.

One rule in the documents deserves bold type: bidders must register with the project architect to obtain plans, and a bid from a firm that never registered comes back unopened. That registration-or-nothing convention has tripped contractors on other jobs run by the same firm — it is cheap insurance to register even while deciding whether to bid. The pre-bid walk-through in late August was not mandatory, so the field remains open.

The bid math to respect: 5 percent bid bond, full performance and payment bonds, prevailing wage. And the schedule reality of every library rebuild — the institution keeps operating somewhere while its building comes down, which makes phasing, temporary services and site logistics as real as the concrete. The bond number is public; the bids will tell Long Island's construction market what a from-scratch civic building actually costs in 2026.