# Stillwater Ionwave #17-2026 Addendum 1

Stillwater roadway, waterline, and streetscape construction improvements

**Posted:** October 17, 2026
**Respond By:** November 18, 2026
**Identifier:** 17-2026 Addendum 1
**NAICS:** 237310, 237110, 237990

The City of Stillwater is seeking a contractor for roadway, waterline, and streetscape improvements on three Stillwater streets.
- **Government buyer:** City of Stillwater, Oklahoma, and Stillwater Utilities Authority; Engineering Department. Project documents also identify Public Works, Water/Wastewater Utilities, and the Office of the City Clerk.
- **Project:** Project 25TR04 — Knoblock Street, 4th Avenue, and Lincoln Street roadway and utility improvements.
- **Scope:** Reconstruct pavement; replace and relocate waterlines; perform drainage, sidewalk, curb-ramp, landscaping, irrigation, lighting, and traffic-marking work; restore affected areas.
- **Major quantities:** 9,306 SY of dowel-jointed concrete pavement placement; 1,590 CY of pavement concrete; 4,176 LF of curb and gutter; 916 SY of plain concrete sidewalk; 500 tons of Type E traffic-bound surface course; 83 SY of stamped concrete finish; 970 LF of 1-1/4-inch Schedule 40 PVC conduit; and 326 CY of excavation in an alternate.
- **Waterline materials:** PVC AWWA C900 DR-18 and HDPE AWWA C906 DR9 in multiple diameters, with valves, fittings, hydrants, and service connections. The bid schedule lists 655 LF of 8-inch PVC, 950 LF of 8-inch restrained-joint PVC, 439 LF of 10-inch bored HDPE, and 309 LF of 8-inch bored HDPE, among other quantities.
- **Alternates:** Asphalt pavement; decorative concrete pavers; bike racks and litter receptacles; and additional pedestrian lighting.
- **Notable requirements:** Contractor self-performance minimum is 51%, reduced to 35% if add/deduct alternatives are awarded. Work must maintain traffic and pedestrian access, coordinate utility interruptions and restoration, and accommodate Oklahoma State University events. A superintendent is required for each geographically separated work area; the City coordinates material testing. PVC-coated rigid elbows and risers are required, asphalt is priced at a firm unit price, and the irrigation power receptacle is incidental to other electrical pay items.
- **OEMs and vendors:** No OEMs, manufacturers, or product vendors are identified by name in the provided materials.
- **Period:** Substantial completion is due within 293 calendar days after Notice to Proceed; final completion is due within 323 days or 30 days after substantial completion, whichever comes first. Separate roadway-section milestones also apply.

### Description

The City of Stillwater / Stillwater Utilities Authority is seeking bids for roadway reconstruction, utilities replacement, and streetscaping improvements on Knoblock Street, 4th Avenue, and Lincoln Street. Bids are submitted electronically through the City’s Ionwave portal, and attendance at the October 27, 2026 pre-bid conference is mandatory. The notice requires a bid guarantee of at least 5% of the bid amount; the successful bidder must provide specified bonds and insurance and execute a contract within 14 calendar days of notice of award.

[View original listing](https://stillwater.ionwave.net/PublicDetail.aspx?bidID=406&SourceType=1)