Webster Groves holds nonmandatory pre-bid for 25PW05 mill-and-overlay and concrete slab work on Edgar Road and nearby streets

This is a nonmandatory pre-bid meeting for Project 25PW05, Mill and Overlay, covering Edgar Road, Murdoch Avenue, South Elm and three parking lots, City of Webster Groves Department of Public Works staff said.

The project calls for milling 2 inches of asphalt and placing a 2-inch overlay on the identified asphalt roadways and parking lots, replacement of eight-inch-thick concrete roadway slabs at specific locations on Murdoch and South Elm, and striping work including 4-inch double-yellow hot thermoplastic centerlines, 24-inch white thermoplastic crosswalks and stop bars and bicycle shared-road symbols on Edgar Road.

Brad, a City of Webster Groves Department of Public Works staff member, told attendees the contract separates line items for streets versus parking lots because of different work features, and that temporary traffic control will be paid as one lump sum for the entire job. "We were not contemplating closing Edgar Road," he said, adding that the city expects to leave a lane open with flagger control or temporary signal in places where needed.

Concrete slab replacements are limited (the bid documents list removal and replacement of eight-inch-thick slabs on Murdoch and South Elm) and will require second-shift work because of traffic volumes. The city advised that contractors should plan for overnight or off-peak operations for those slab repairs; the city said it is acceptable if some slabs remain curing the next morning when needed for traffic or truck access.

Long Cabin parking lot work will be phased to avoid closing the entire lot at once; the bid documents require two-phase completion for that lot. The Desoto lot may be closed entirely for work, the city said. Contractors may propose traffic-control plans for lots with multiple entrances to maintain some access during phased construction.

Staff noted certain unknowns that bidders should consider: existing asphalt thickness in some lots and curb transition areas was not fully documented, so a 2-inch mill could expose underlying aggregate or require base repairs. City staff said bidders should document perceived discrepancies before bidding so the city can issue clarifications or addenda.

The city set a 30 working-day contract time and said bidders should expect the work to be scheduled to avoid major conflicts with Webster University housing move-in and other peak periods. Brad said, "If you don't see anything, it means that there's no addenda," and that any addenda would be posted by the end of Thursday to give bidders at least one to three working days before the bid opening.

Bids must be submitted in hard copy only and addressed to Department of Public Works, City of Webster Groves, Missouri 63119; electronic submissions will not be accepted for this solicitation. The bid opening is scheduled for 10 a.m. next Tuesday; the city plans to post the solicitation and any addenda at a web link that will go live by the end of the day.

Other technical details reviewed included use of BP-1 versus county Type C mix (staff said mixes are very similar and bidders should request clarification if needed), thermoplastic application on concrete, placement of bike symbols, and coordination with MoDOT where the city’s work meets state right of way. Staff said prevailing wage requirements are in the contract documents.

Next steps: the city will post the bid packet and any addenda to the project web link, and will accept hard-copy bids per the bid documents. Contractors with questions were told to contact the Public Works staff listed in the bid documents.

Notes on risk and unknowns from the meeting: bidders were warned that milling could expose base material or rock in areas where prior overlays are thin, which may trigger unanticipated base repairs; the city said bidders should flag such locations in inquiries so the city can provide consistent guidance via addenda.