ACPA Quarter 4 2018

Concrete Pavement Progress www.acpa.org 16 Intersection of SH-51 (6th Street) & US-177 (Perkins Road), Stillwater, OK CONTRACTOR: Duit Construction Company, Inc. OWNER: Oklahoma DOT ENGINEER: Benham Stillwater, OK, is home to more than 49,000 people, but thanks to Oklahoma State University (OSU), the population increases by almost 26,000 students every August. The intersection of SH 51 and SH 177 was the site of a test section of 4 in. fiber-reinforced concrete placed on asphalt pavement. The section was in service for 19 years, but with ADT of 21,167 ADT and 4% trucks, the owner had to replace the intersection as part of a plan to increase capacity and upgrade the bridges adjacent to the intersection. Because of the large volume of traffic on the intersection, ODOT and the city put internal milestones in place to ensure that traffic was flowing during all the OSU football games. Knowing that as many as 60,000 fans could be drawn to the area during football games, ODOT wanted to make sure this intersection was open in time for the beginning of the season. Duit was required to start the day after the final football game and to ensure the pavement was operating at full capacity by the first game in September of the following year. Thanks to the team efforts between Duit, ODOT, the City of Stillwater, and the Benham Group, the team was able to complete the project in time for the first football game. For the paving, Duit placed more than 18,800 SY of concrete 8 in. thick, jointed reinforced pavement, equaling more than 2.8 lane miles. In spite of the utility delays, the project was completed on time. State Roads Iowa Highway 196, Sac County, IA CONTRACTOR: Cedar Valley Corp., LLC OWNER: Iowa DOT ENGINEER: Iowa DOT This nearly 10-mile project involved the removal of 135,000 SY of existing pavement, comple- tion of 900,000 CY of earthwork, and placement of almost 109,000 tons of subbase and shoul- der aggregates. The contractor, Cedar Valley Corp., paved almost 200,000 square yards of detour, mainline, and shoulder paving on the project. The contract period was stated to be 255 calendar days with a goal of opening to traffic by the day be- fore Thanksgiving, but it was an especially wet year in Sac County. Almost 40 inches of rain hit the area. The prime contractor first scheduled the paving to start on August 3, but the start date slid to September 20, again to October 5, and finally to October 12. However, when mid-November arrived, Cedar Valley caught up with the prime contractor’s grading and subbase operation, so the chances of opening Highway 196 to traffic during the calendar year was looking pretty bleak. As cold weather arrived, Iowa DOT officials expressed concerns about leaving a potentially dangerous 12-mi. detour in-place during inclem- ent weather. The contractor developed a plan that outlined the extra measures and expenses needed in order to make sure Highway 196 was opened to traffic in the late fall. Exceptional plan- ning and execution allowed Cedar Valley to pour the two outside lanes and the median on the south end of the project, effectively closing the detour until spring. On the following April 4, work started up again and traffic was rerouted and placed back on to the established project detour, so CVC could complete the remaining 16 miles of paved shoul- ders, along with a couple of paved driveways. In spite of the many challenges and the extraor- dinary steps needed to battle the weather and meet the schedule, Cedar Valley had no injuries or recordable vehicular accidents after 35,500 man-hours. State Roads E X C E L L E N C E A W A R D S MEMBER MEMBER