ACPA Quarter 4 2018

Concrete Pavement Progress www.acpa.org 20 159th Street Reconstruction (Nall Ave. to Mission Rd.), Overland Park, KS CONTRACTOR: Miles Excavating, Inc. OWNER: City of Overland Park ENGINEER: Affinis Corp This project is in one of the fastest-growing area in the county. Increased traffic volumes had elevated the need for this project, which expanded the 159th Street from a two-lane country toad to a four-lane, divided roadway. The approximately $8.93 million project also included other improvements, including bike lanes; a new roundabout at the Mission Road intersection; curb and gutter; and storm sewers. The project also called for a reinforced concrete box culvert under the road; street lighting; sidewalks; and a multi-use trail. Some of the project challenges were anticipated, including the need for significant grade changes that required large solid rock excavation; utility relocations before and during construction; and continuous access to a utility substation and three nearby schools. One factor that was less predictable was the number and frequency of 100-year rain events during the proj- ect. The project team worked together to rise to the challenge and overcome each one without sacrificing safety or schedule along the way. During construction, the city and contractor focused attention on sustainability measures. For example, concrete was chosen for the roadway because of its inherent sustainability benefits, including reduced maintenance and reduction of waste, such as millings associated with asphalt overlays. The contractor and city also hired a water pollution control manager to oversee erosion control on the project. The contractor place 35,377 SY of concrete for a total of just over five lane miles of roadway. As a result of the exceptional team effort, this rapidly-growing area now has an arterial roadway that will serve the city for many years. Urban Arterials and Collectors SH 45 Pueblo Boulevard (SH 96 to US 50), Pueblo, CO. CONTRACTOR: Castle Rock Construction Company OWNER: Colorado DOT Region 2 ENGINEER: Colorado DOT Region 2 State Highway 45 in Pueblo is a 3.5 mi. stretch of heavily-trafficked roadway that connect the town of Pueblo west of US 50 to the downtown area. The existing asphalt roadway was severely damaged with transverse cracking and needed complete replacement. Several concrete contractors, including Castle Rock Construction, met with the Colorado DOT prior to the bid process to discuss constructability of concrete on SH 45. The existing median curb and gutter sections needed to remain in place for a portion of the project, and adjacent to the curb and gutter, the paving needed to be constructed with zero clearance for paver tracks. The industry worked through those concerns with the DOT. The project included 190,000 SY of asphalt planing/ milling and 170,000 SY of full-depth reclamations, as well as 38,000 CY of excavation and mitigation of unsuitable subgrade using aggregate subbase course with geogrid reinforcement. The project also called for 160,000 SY of 8.25 in. doweled concrete pavement. Additional work included traffic signal reconfigurations; bridge jacking, rehab, and resurfacing; and rock check dams, and drainage grading. In addition to performing its own contract work, Castle Rock also provided direct oversight of 22 sub- contractors while working with 14 contract modifica- tions totaling approximately $1M. The project had three main phases, with multiple smaller phases. Dividing the paving into so many phases, along with the three bridges and gaps at all four intersections could have adversely impacted the pavement smoothness, but with proper planning, the effects were minimized. The owner, taxpayers, and travelers now have a long- lasting concrete roadway that will provide many years of service. Urban Arterials and Collectors E X C E L L E N C E A W A R D S MEMBER MEMBER