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Owasso approves $24,400 amendment to intersection engineering; drainage work deferred to corridor project
Summary
The council approved Amendment No. 1 for engineering services at East 86th Street North and 61st East Avenue, authorizing $24,400 to revise plans that reduce pavement width, remove intersection bicycle lanes and limit drainage work to the Park Place/Preston Lakes entrance to avoid property acquisition and control costs.
The Owasso City Council on Jan. 8 approved Amendment No. 1 to the engineering services agreement for the East 86th Street North and 61st East Avenue intersection improvements, authorizing $24,400 to revise plans to reduce pavement width, eliminate bicycle lanes in the intersection area and scale back downstream drainage work.
Dwayne Henderson, the project presenter, told the council engineers found the planned intersection geometry would come close to a private residence at the northeast corner of the project. To avoid acquiring the house and the additional cost and complications that would bring, staff instructed the engineer to “cut the intersection down in size” and remove bicycle lanes within the intersection footprint. Henderson said the narrower plans save an estimated $20,000 in pavement costs and could avoid several hundred thousand dollars in land‑acquisition costs, though he said the city has not appraised the property.
Henderson also described drainage concerns. The original scope extended drainage improvements farther west, but engineers found the downstream work would require large pipes, regrading ditches and potentially reconstruction of the Homestead subdivision entrance. To limit cost and complexity, the amendment directs the engineer to stop drainage design at the east entrance of Park Place/Preston Lakes and defer the remaining downstream drainage work to a forthcoming corridor project. Henderson said the deferred approach would allow the city to “design downstream upwards” on the larger corridor project and better control grades, potentially reducing impacts and costs.
Staff recommended and the council approved Amendment No. 1, funded from the capital improvement fund. The amendment cost of $24,400 covers plan revisions to reduce pavement width, eliminate bicycle lanes at the intersection, revise drainage plans and remove large‑diameter pipe and ditch grading for the deferred section. The council approved the amendment by unanimous voice/roll call.
The item included questions from councilors about project limits and right‑of‑way. Public works staff later presented the monthly project status report with updates on several corridor projects, including rebidding of Garnett Road improvements (expected to be rebid in February), the status of multiple intersection projects and right‑of‑way obtainment (one corridor noted 11 parcels needed, with three acquired to date). Staff said the larger corridor design and bridge project will be presented as a separate item to provide the downstream drainage design and right‑of‑way planning.
