A major construction phase of I-75 will begin next week south of downtown Dayton.

A deteriorating 3-mile stretch of I-75 in the Moraine and West Carrollton area will be demolished and replaced next week, part of a $47 million project that will take another two years to complete.

In the next phase of the project, which began last year, crews will completely rebuild 4.7 miles of highway from Exit 47 in West Carrollton to Exit 50A (Dryden Road) north of Exit 50A (Dryden Road), clearing the surface to the ground and replacing existing pavement. .

The Ohio Department of Transportation evaluates pavement using a pavement condition rating system, taking into account factors such as rutting and cracks. ODOT planning engineer Ben Wiltheis previously said that this section of I-75 is experiencing a “much faster decline” than usual as the deterioration of the road surface makes surface repairs less effective.

“It is clear that we are always doing our best to improve our transportation infrastructure for drivers,” said ODOT spokeswoman Mandy Dillon. “One of our big goals is also to keep what we have and take care of the roads we have and make the necessary improvements on those roads.”

Other fragments of the project

Traffic shift: I-75 will have multiple lane closures in both directions starting Sunday evening through April 21st. The lanes will be closed every night from 19:00 to 07:00.

During this period, crews will work to move one northbound lane to the south side of I-75, allowing this new traffic pattern to have three lanes in each direction, ODOT said.

Closing a long ramp: At Dryden Road, the I-75 northbound exit will be closed from April 9 until July 2025 as part of the I-75 redevelopment plan. There will be a detour from Dryden Road to Northlon Avenue to Springboro Pike (Ohio 741) to I-75 north.

The 550-foot southbound deceleration ramp from I-75 to Dryden Road will be widened by about 100 feet in 2024.

Best middle hurdle: Nearly 1 mile section of the old “Jersey” shaped median barrier from Edwin S. Moses Boulevard to Ohio 741. will be replaced. The new barrier will have a single slope shape, which will improve the diversion of vehicles onto the roadway, officials said.

The new barrier will also be taller, officials said, to negate the glare of oncoming headlights.

Other changes: There will be minor repairs to various bridges in the area between this year and 2025, Dillon said, with most work northbound this year and southbound in 2024, with all aspects completed by autumn 2025.

Stormwater facilities, lighting, signage and related components in the hallway will be replaced and upgraded as needed, Dillon said. Some of this work began in 2022 and will be completed in various stages until autumn 2025.

Project Cost Explanation

According to Dillon, the original $20 million figure for the project, reported by this news outlet in April 2021, was “a planning-level estimate.”

“As we moved into detailed design, the figure increased due to the addition of additional work and refinement of the quantity as the project was completed,” she said. “We have added (cost) refurbishment of the median barrier wall, lighting, drainage structures, and added a pavement upgrade to the northern part of the project.

Covered 1.5 miles between Stewart Street and Ohio 741, this northern portion was originally part of a bridge replacement project, but ODOT moved it to this project to ensure that the new pavement is free of scars from work area road markings, Dillon said.

According to her, the increase was also affected by inflation and rising gas/oil prices.

“The main cost of this project is asphalt, which is very dependent on the oil market, as well as transportation costs,” Dillon said. “The county has seen an increase in the price per cubic foot of asphalt of about 30-40% across all of our resurfacing projects across the county, and this one was no exception.”

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