The KYTC Daviess Highway County crew is also installing a pre-fab culvert along Kentucky 662 east of Maceo this week, with another to follow nearby.
The use of pre-fabricated units has helped to speed the work and provided a savings to taxpayers.
The pre-fabricated culverts are constructed out of aluminum. Instead of closing the roadway for one or two months to construct a new concrete culvert on-site, the pre-fab units can be assembled and installed in a couple of weeks. They are also less expensive than concrete units constructed on-site.
The project along Kentucky 145 at mile point 5.5 in Henderson County is to replace a small bridge about 3 miles south of Corydon at the intersection with Sulphur Springs Road. A small bridge at that location had deteriorated to a point where it was restricted to a 3-ton load limit. That pretty much limited the roadway to passenger vehicles only.
That restriction limited the ability of farmers to move crops and kept school buses from using the highway. The new culvert will restore normal traffic flow along that section of Kentucky 145.
The pre-fab units have been especially useful on dead-end roadways where there is only one way in and one way out because they greatly reduce the amount of time the roadway is closed for construction.
The Transportation Cabinet has used these pre-fab units, both concrete and aluminum, on a more or less experimental basis for several years. McLean County and Muhlenberg County installed a pre-fabricated concrete bridge on a county road at the county line near Bremen about 2 years ago that has worked well.
The pre-fab units can be installed by state highway crews, helping save taxpayer money. After confirming that the units reduce installation time with substantial cost savings, engineers are now starting to use them in more applications. You can expect more of them to be installed in coming years.Engineers estimate about $300,000 in savings for each of the three installations planned for this month.
Information provided by Keith Todd
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