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KYTC Graves County - KY 849 and KY 2194

Graves County, Kentucky

Bridge Replacements/Stream Crossings

Installation:

KY 2194: October 29, 2018 and KY 849: November 5, 2018

Technical Description:

• 24'-8" span x 10'-6" rise x 36' long Aluminum Box Culvert with Headwalls and Wingwalls
• 23'-10" span x 10'-1" rise x 36' long Aluminum Box Culvert with Headwalls and Wingwalls

Recent flooding on two deteriorating structures located along KY 2194 and KY 849 led to both roads being closed for several months. A timely solution was needed and Aluminum Box Culverts (ALBC) from Contech Engineered Solutions was the right solution. The Contech ALBCs provided a quick design solution and reduced the overall construction time, minimizing the road closure time significantly as compared to a traditional bridge replacement. 

The ALBC structures provided efficient and reliable installations and proved to be a cost effective system. KYTC worked with Contech to determine the appropriate sized structure for each of the sites. On KY 2194, the deteriorating pipe was replaced with a 23'-10" x 10'-1" ALBC, 36' in length. On KY 849, the deteriorating bridge was replaced with a 24'-8" x 10'-6" ALBC, 36' in length. Due to the short structures and the required 3-4' fill heights, Contech helped KYTC redesign the prefabricated headwalls and wingwalls to fit the specific site requirements for both structures. In addition, Contech provided onsite support and assistance to the KYTC maintenance crew. 

"The age and loads placed on the deteriorating structures were the most prominent reason for the need of replacement," stated Jason W.  Looper, P.E., L.S., Project Delivery and Preservation, Branch 1 Mayfield Section Supervisor with Kentucky Transportation Cabinet (KYTC). "However, recent flooding events caused major scour issues which led to the need to close both structures until a suitable replacement could be installed." 

"The use of Contech's ALBC product was a suitable choice," concluded Looper.  "We have used this product in the past with great success. One of the main advantages of the ALBC line is the ability of KYTC to utilize state forces to perform a majority of the work. This leads to a cost savings for the department which translates down to more projects that can be completed in the future. These particular sites proved to be challenging projects simply due to the weather and time of year the installations took place. Nonetheless, the projects were considered successful due to the amount of money saved and the ability to get the roadway back open to the public." 

Technical Description:

• 24'-8" span x 10'-6" rise x 36' long Aluminum Box Culvert with Headwalls and Wingwalls
• 23'-10" span x 10'-1" rise x 36' long Aluminum Box Culvert with Headwalls and Wingwalls

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