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Owasso approves up to $786,000 interlocal agreement with Tulsa County for Mingo Road rehabilitation
Summary
The Owasso City Council approved an interlocal agreement with Tulsa County to rehabilitate Mingo Road — a two‑mile stretch staff says will be milled and overlaid — with the city’s share not to exceed $786,000; staff said the method avoids raising roadway grade in floodplain areas and is more cost‑effective than private contracting.
The Owasso City Council approved an interlocal agreement with Tulsa County for pavement work on Mingo Road, authorizing payment not to exceed $786,000 toward a project staff characterized as a cost‑effective alternative to hiring a private contractor.
City public works presenter Roger Stevens told the council the proposed agreement covers rehabilitation of Mingo Road "from East 90 Sixth Street North to East Hundred Sixteenth Street North," and that Tulsa County would provide equipment, material and labor while the city would reimburse the county for equipment use, labor, traffic control and materials. "The estimated cost to the city…is now $786,000," Stevens said, adding that hiring a private contractor for the two‑mile stretch would likely cost about $1.5 million to $1.6 million.
Stevens explained staff changed the planned pavement method after consulting with county staff. Rather than pulverizing the existing pavement, the county will perform a 4‑inch asphalt mill and then place 4 inches of new asphalt across the project. Stevens said milling avoids raising the roadway grade in areas inside the floodplain and floodway, which would have been a concern if pulverizing and re‑grading the surface raised the elevation. He said the city has about six inches of existing asphalt in places; milling will leave approximately two inches of the original asphalt intact beneath the new overlay.
On lifecycle expectations, Stevens told the council the method should provide about 15 years of service life. He attributed much of the cost increase since the 2023 approval of a related annual local agreement to rising material prices, especially asphalt and tack oil. Stevens said funding for the work is included in the capital improvements fund and the half‑penny streets fund.
Councilors asked whether the county had already approved the change; Stevens replied the county approved the plan the previous Monday and that work was scheduled to begin April 14, weather permitting. The council voted to approve termination of the earlier interlocal agreement from June 6, 2023, and to authorize execution of the new agreement and payment not to exceed $786,000.
The motion passed by roll call with all members voting yes. Stevens and councilors noted the county‑provided approach yields savings for the city while accommodating floodplain constraints and ongoing public works planning for the area.
