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680-224 project to raise bridge



Published: Fri, April 30, 2010 @ 12:06 a.m.

By Denise Dick

By DENISE DICK

denise_dick@vindy.com

BOARDMAN

A roughly $4.4 million project to improve the interchange from southbound Interstate 680 to the westbound U.S. Route 224 exit ramp also includes raising the height of the U.S. 224 bridge.

The project is set to be advertised for bids in fall 2012 with construction to start in 2013, said Justin Chesnic, a spokesman for Ohio Department of Transportation District 4.

The U.S. 224 bridge will be raised 4 inches — from 15 feet 2 inches high to 15 feet 6 inches — as part of the project.

“The legal limit for a bridge is 13 feet 6 inches,” Chesnic said. “But federal guidelines say it should be 15 feet 6 inches in urban areas and 16 feet 6 inches in rural areas on the interstate.”

The U.S. 224 bridge is considered to be in an urban area.

Chesnic said the heights are based on clearance to allow for vehicles that carry equipment.

ODOT is aiming for the 15-feet, 6-inch height for bridges in the I-680 corridor, Chesnic said.

“We’re not going to redo all of the bridges in the district,” he said. “If a bridge was done 15 years ago, six years ago, and it’s still in good shape, we’re not going to redo it.”

The height will be raised if a bridge also needs other major work such as redecking.

The bridge raising is only part of the plan for the interchange.

“The ramp [from I-680 south to U.S. 224 west] will be moved about 350 feet east,” said Kathleen Rodi, transportation director at Eastgate Regional Council of Governments.

The relocated ramp will form a “T” at Route 224, officials have said.

The new ramp intersection also will get a new traffic signal that will connect with the signal at 224 and Tiffany Boulevard.

The exit ramp also will be widened to two right-turn lanes with overhead signs provided.

A right-turn lane also will be added on westbound 224 to northbound Tiffany Boulevard.

Another portion of the project is construction of a free-flow right-turn lane on the westbound Route 224 approach to the I-680 northbound entrance ramp, with barriers erected to separate the right-turn lane from the intersection.

“It will help eliminate some of the weave,” Rodi said, referring to people who get off of I-680 southbound and head west on Route 224.


Comments

1golfball(15 comments)posted 4 years, 3 months ago

While they are digging up all the ground to move the ramp why don't they just dig 680 4" deeper for 40' than raise the whole bridge? Is it cheaper to raise a bridge than dig up the road under it and repave it?

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2walter_sobchak(1889 comments)posted 4 years, 3 months ago

Actually, there is significant work to lowering an interstate roadway. It would be necessary to totally remove all of the sub-base and then excavate the earth and replace it. This would have to be done for a significant length of the roadway as the profile has certain grade restrictions due to the high speed design. Maintaining traffic would be a challenge. In addition, this could create a significant low spot and proper drainage could be difficult to attain. With the bridge structure, since the road is a lower speed, the altering of the profile grade poses less restrictions. In addition, bridge decks have a very limited life due to volume of traffic and the use of de-icers attacking the steel reinforcing in the concrete. Thus, they need to be replaced anyway and this allows a good view of the girders to be inspected for deterioration. Your question is a good common sense question to a normal person without engineering or constrruction experience.

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3Silence_Dogood(1330 comments)posted 4 years, 3 months ago

Big Lebowski I thought the same way that Golfball did, thank you for clearing that up.

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4walter_sobchak(1889 comments)posted 4 years, 3 months ago

NoBS,
I'm not saying there is a logistical nightmare, just that it would be a challenge. Roadway alighnment is on a curve and there are exit lanes in all four quadrants of the bridge layout. If it is time to redeck the bridge deck due to chloride inclusion in the concrete, it makes more sense to raise the bridge. I also sounds like they are reworking the I680 southbound exit to 224 by making it a "T" with signal control. This should have been done long ago.

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