The first is a project to widen a 3/4–mile section of State Highway 5 near Melissa, Texas. The $6.2 million project will allow McCarthy to replace the highway asphalt roadway and four existing structures and their approaches, along with constructing three new support bridges. Currently, this section of the highway lies in a floodplain of the West Fork branch of the Trinity River; these new, higher bridges will reduce the risk of flooding.
McCarthy will use a three-step process to complete the project under challenging live-traffic conditions. First, crews will widen to the west, then widen to the east, and finally, fill in the remainder of the road in the middle section. McCarthy’s Texas Division has perfected this technique working on numerous other transportation projects, including the reconstruction of 2.3 miles of Beltline Road for Dallas County in 2008.
“For projects like this, the process we use allows as many drivers as possible to continue using the roadway,” said Jerry Mayer, project director for McCarthy. “As always, we want to minimize disruptions and inconveniences to residents and restore the highway to its full usage by the scheduled completion time.”
McCarthy will be grading the project site’s embankments to complement the higher roadway grades, using temporary shoring and lime-treated subgrade soil to stabilize the site and then laying asphaltic concrete pavement to create the road. McCarthy will also install a drainage system, pavement markings and signs for future highway use. The project is scheduled for completion in April 2012. The engineer on this project is Lockwood, Andrews & Newnam, Inc., of Dallas.
The month, McCarthy will also start work on project a railroad grade separation structure for farm-to-market road 1960 in Liberty County in south Texas.
The project consists of realigning approximately 1.4 miles of existing roadway and constructing a grade separation over an existing railroad, eliminating the need for automobile traffic to pass over a railroad crossing. McCarthy be driving nearly 17,000 linear feet of pre-stressed concrete piling in the ground, utilizing more than 3,500 cubic yards of concrete for structures and erecting approximately 14,000 linear feet of pre-stressed concrete girders.
During construction, McCarthy will construct a temporary detour to allow crews to work on the construction of the bridge structure and roadway realignment to minimize disruptions to drivers. The project is scheduled for completion in April 2012.
McCarthy (mccarthy.com) is one of the nation’s oldest privately held construction firms in America. An employee-owned company, McCarthy offers general contracting, construction management and design/build services for the following project types: transportation, bridges and highways, healthcare, parking structures, educational, office buildings, laboratory, biotechnology, entertainment, retail, microelectronic, and industrial facilities, tenant interiors, and mixed-use. In addition to Dallas and Houston, McCarthy has offices in Sacramento, San Francisco, San Diego and Newport Beach, Calif.; Phoenix; Las Vegas; St. Louis and Atlanta.