Can a Bridge be Replaced in One Weekend?

An innovative technique is used to minimize the impact on drivers.

📅   Fri August 21, 2015 - National Edition
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The slide-in construction method will be used to replace the northbound bridge the weekend of August 21st.
The slide-in construction method will be used to replace the northbound bridge the weekend of August 21st.

MONTPELIER, Vt. (AP) - The Vermont Agency of Transportation says it’s replacing an Interstate 91 bridge in White River Junction in one weekend using an innovative technique to minimize the impact on drivers.

The slide-in construction method will be used to replace the northbound bridge the weekend of August 21st. The bridge at exit 11 will close Friday at 6 p.m. Hydraulic jacks will slide the bridge 18 inches at a time. The new bridge is expected to open by 6 a.m. on Monday.

Agency Secretary Sue Minter says the technique substantially reduces the amount of inconvenience to travelers by limiting closure.

The $11.1 million project is mostly covered by federal funding. Vermont will pay 5 percent of the cost.

A demonstration of the technique can be seen here: