The Mill Creek Expressway projects will widen and resurface I-75 between Paddock Road and the Western Hills Viaduct in Hamilton County. Projects will also include interchange improvements at Hopple Street, I-74, Mitchell Avenue, Norwood Lateral, and Paddock Road. Total project investments are estimated at $550 million to $650 million.

The Mill Creek Expressway projects have been split into 12 phases, some of which are complete already. Phases were not completed in order. Phase 5A is currently under construction, which will widen I-75 between Hopple Street and Mitchell Street, connect prior improvements from Hopple Street and Mitchell Street projects.

Current and Upcoming Phases

Phase 5A: I-75 widening between Hopple and Mitchell streets

UNDER CONSTRUCTION NOW  •  $86.9 MILLION

Widen I-75 and connect improvements from Hopple Street and Mitchell Street projects. Project is under way and schedule to complete in September 2022.

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Phase 5B: I-74/I-75 interchange improvements

CONSTRUCTION TO BEGIN IN SPRING 2022  •  $91 MILLION

Reconfigure I-75 southbound connection to I-74 eastbound, and improve the I-74 eastbound connections to I-75.

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Phase 8: I-75 widening between SR 562 and SR 126

CONSTRUCTION TO BEGIN IN SUMMER 2022  •  $121.6 MILLION

• Widen and resurface I-75 between state Route 562 and state Route 126
• Rehabilitate existing bridges
• Reconstruct the state Route 562/Norwood Lateral interchange
• Remove the Towne Avenue interchange
• Improve the Paddock Road interchange
• Tie in existing state Route 126/Ronald Reagan Cross County Highway interchange southern ramps

Project scheduled to begin in summer 2022. Estimated cost: $121.6 million

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Completed Phases

Project Development

COMPLETE  •  $10.9 MILLION

Preliminary engineering and right-of-way acquisition.

Phase 1: I-75/Mitchell Street interchange improvements

COMPLETE  •  $53.7 MILLION

Reconstruct the Mitchell Avenue interchange with I-75.

Phase 2: Monmouth Street and Bates Avenue bridge work

COMPLETE  •  $6.8 MILLION

Replace the Monmouth Street overpass and convert Monmouth Street to a through street between Colerain Avenue and Central Parkway, and remove the Bates Avenue overpass and pedestrian bridge over I-75.

Phase 3: I-74/Beekman Avenue interchange construction

COMPLETE  •  $13.3 MILLION

Realign the intersection of Colerain and Beekman avenues, add a new ramp from Beekman Avenue to I-74 westbound to create a full interchange, and eliminate existing ramps from I-74 to Spring Grove Avenue.

Phase 4: I-75 widening between Western Hills Viaduct and Monmouth Street

COMPLETE  •  $90.6 MILLION

Widen and resurface I-75 between Western Hills Viaduct and Monmouth Street, reconstruct the I-75 and Hopple Street interchange, and remove the pedestrian bridge over Central Parkway.

Phase 6: Railroad bridge replacement

COMPLETE  •  $22 MILLION

Replace the Indiana Ohio Railway bridge over I-75, just south of state Route 562/Norwood Lateral.

Phase 7: Mitchell Avenue and SR 562 widening

COMPLETE  •  $29 MILLION

Widen and resurface Mitchell Avenue and state Route 562/Norwood Lateral, and reconstruct bridge over Vine Street.

Phase 8A: Seymour Avenue and Paddock Road bridge replacements

COMPLETE  •  $7.6 MILLION

Replace Seymour Avenue bridge and reconstruct portions of the Paddock Road bridge over I-75 in preparation for mainline improvements.

Phase 9: Building demolition

COMPLETE  •  $1.8 MILLION

Demolish buildings near the Hopple Street interchange in preparation for mainline construction.