Four pedestrian tunnels under Muirfield Drive will close to cyclists and walkers by Sept. 14 for concrete sealing and repairs.

The city expects the work to wrap up by the end of October, according to a construction update posted by Dublin. Each tunnel will close individually during active work, with signs and barricades directing users around the construction zone. The city said impacts to vehicular traffic should be minimal.

The tunnels sit where Muirfield Drive crosses Tarton Drive and Whittingham Drive, with one northbound and one southbound tunnel at each intersection. Built in the early 1970s alongside Muirfield Drive itself, the structures are roughly 50 years old. Each has a 108-inch inner diameter, and they range from 72 to 80 feet long.

Crews will apply epoxy and urethane sealers to all concrete surfaces and make spot repairs to deteriorating concrete and tunnel joints. The city said the coatings will protect the tunnel surfaces and improve their appearance.

Dublin City Council voted 7-0 on Aug. 10 to award the project to Martin Painting and Coating Company, which submitted the lowest of three bids at $105,629, according to council meeting minutes. The engineer's estimate had been $115,000. Funding comes from the 2026–2030 Capital Improvements Program, which set aside $300,000 for concrete sealing maintenance.

Gable, the city's Deputy Director of Engineering – Design and Construction, presented the project to council. Mayor Amorose Groomes asked at the Aug. 10 meeting whether the work would conflict with the anticipated Columbus Fourth Water Plant pipeline, which may pass through the area. Staff confirmed the pipeline project is planned to go around or bore under the tunnels without direct impact, and that coordination has taken place.

The Muirfield Drive closures are part of a broader tunnel maintenance push in 2026. Earlier this year, the city began work on pedestrian tunnels at Emerald Parkway and under Dublin Road at River Forest.

No specific detour routes have been published. Residents with questions can call the city at (614) 410-4400.