ACPA Quarter 4 2018

Concrete Pavement Progress www.acpa.org 12 Dover Oklahoma County Road EW-73, Kingfisher, OK CONTRACTOR: Duit Construction Company, Inc. OWNER: Oklahoma DOT ENGINEER: Circuit Engineering District 8 At first glance, County Road EW-73 in Kingfisher County may appear to be indistinguishable from other roads, but there’s much more to this recently paved road than meets the eye. Daily traffic count is nearly triple the population of its nearest town, thanks to major sand pits in the area that serve a large area that includes Oklahoma City. Also, EW-73 is one of the few concrete county roads in the state of Oklahoma, and there are few exceptions other than roads designed for high truck traffic. The contractor, Duit Construction, had previously completed concrete sections roads that provided industrial access to wind-energy farms and fertilizer plants in the area. Duit saw the most competitive option for the first segment would be consistent road surfaces on the remaining 13 miles of pavement. Duit was the low-bidder on the project, which consist- ed of 45,407 SY of doweled, jointed pavement along a 3.4-mile alignment. Most the concrete was 7-in. thick concrete, except for 10-in. thick pavement used at the intersection of US-81 and the sand plant entrance. The greatest hurdle during the project was maintain- ing local traffic at all times. The alignment included 30 drives, two cross streets and a high production sand plant facility. The contractor kept property owners (including the home- owners and the sand pit operators) informed with construction signs and door-to-door communication prior to the start of construction. As a result of ingenuity, hard work, and extra efforts, the paving project was completed without delays and a week ahead of schedule. County Roads Weld County Road 49 Design-Build: I-76 to US 34, Weld County, CO CONTRACTOR: Interstate Highway Construction, Inc. OWNER: Weld County, Colorado, Division of Engineering Felsburg Holt & Ullevig As the first design-build pavement project for Weld County, this was also the largest single contract awarded in the county’s history. The selection of con- crete pavement was a big step for the owner, which historically used their own asphalt paving crews and, until recent years, had not constructed any major concrete roadway projects. As one of only two major north-south farm-to-market routes within the County, WCR 49 is essential to the area, but the existing roadway was also one of the most dangerous in the county. County officials expedited the roadway reconstruction and issued the two-year design build-effort project in place of one originally planned for 10 years. The total project length was 19.96 miles and included 937,000 SY of concrete paving over 19.96 miles. The project called for 500,000 tons of aggregates for the concrete. Transporting the would have created an enormous environmen- tal impact, so IHC worked with a local aggregate supplier to use an existing aggregate and sand pit on the project site. Close communications and teamwork among the design-build team members resulted in many other innovations, including the use of a geogrid, which eliminated 230,000 CY of excavation and embankment from the project scope. The complete 27-month project duration included design, construction, ac- quiring remaining right of way, working with 17 utility companies and Union Pacific Railroad. Despite a delayed start to the project, this project was com- pleted under budget and almost 30 days ahead of schedule. County Roads E X C E L L E N C E A W A R D S MEMBER MEMBER