A bidder asked the state this week to push back the September 17 letting on the Robert Moses Causeway painting contract, arguing the job's size and Labor Day vacation schedules were choking subcontractor and supplier quotes. NYSDOT's answer, posted Tuesday morning, runs one sentence: a postponement is not anticipated. So the date holds, and the documents — which this desk has read in full — explain why bidders wanted the time.

The job is the full repaint of both Great South Bay bridges: every square foot of existing paint comes off and gets replaced — about 331,000 square feet on the southbound bridge and 485,000 on the northbound, roughly 816,000 in all. The bid schedule carries disposal quantities of 425,000 pounds of hazardous lead paint waste and another 425,000 pounds of non-hazardous — 850,000 pounds of old coating leaving the crossing in drums. Alongside the painting: about 12,700 pounds of steel replaced across a hundred-plus tabulated repair locations, 700 square feet of pack-rust repair, 23 weld repairs, and 260 rivets drilled out for high-strength bolts. Completion: June 29, 2029.

The calendar is the hard part. No closures on weekends, none at morning or evening peaks any day — and from the Friday before Memorial Day through Labor Day, no daytime lane closures at all, with night work starting no earlier than 10 p.m. Beach traffic owns the causeway for a third of every year. Blow a closure window and the meter runs by the quarter hour: up to $2,000 an hour depending on bridge and time of day.

Then there is the water. The work runs from barges that may not touch bottom, must leave the navigation channel every night, and can only be reached by boat. Welding and blasting stop whenever a vessel approaches and stay stopped until it passes. A marine radio watches channels 16 and 13 all shift. Winter shutdown of painting requires 14 days' notice; spring restart, 30. And before any of it, each bridge gets a bat survey — if roosting bats turn up between April and September, the affected work squeezes into an October-to-December window. Migratory bird nests can halt cleaning; hawk and eagle nests can never be touched.

The money mechanics reward careful reading. Fixed allowances include $770,000 for field changes, $144,000 for crew medical testing and $119,000 for exposure monitoring — the lead-health apparatus is priced for you. The Class A containment systems that wrap each bridge must be designed by a licensed engineer, and pollution liability coverage is mandatory. Mobilization is capped at 4 percent. And one number that stands out on a job this size: the federal DBE participation goal is zero percent.

For the painting and steel trades, this is the anchor contract of the next three seasons on Long Island — the kind of job that books a specialty contractor's barges, containment gear and certified crews into 2029. The full proposal books, plans and this week's Q&A are free on the state's contract-documents page. Bids open September 17 at 10:30 a.m., and the state just told you the date is real.