PAST PROJECTS showcase
Click on the project names to see an image gallery for that project.
Dallas Area Rapid Transit Green Line Expansion | Location: Dallas, Texas
Approximately 1,600 drilled shafts totaling more than 68,000 linear feet were installed over a 28 mile expansion of the DART rail system. The range of work included drilled shafts for light pole bases, catenaries, canopies, stations, track slabs, and bridge piers. Diameter and depths varied widely from 18” diameter and 20’ deep to 120”diameter and 90’deep.
Access was very restricted in most locations and low clearance equipment was required in certain areas. The project alignment is underlain by Quaternary alluvial and trace deposits and the Austin Chalk Formation. The alluvial and terrace deposits typically consist of clays, sandy clays, silts, sands, and gravels. These soils overlie the Austin Chalk Limestone Formation. The Austin Chalk Limestone Formation consists of gray limestone with thin interbedded shale layers. The predominant method of installation was the casing method. Casings were installed using processed native materials, polymer slurry or vibratory hammers.
Marsha Sharp Freeway | Location: Lubbock, Texas
The Marsha Sharp Freeway is Lubbock's primary east-west access road. It has or will provide a western connection to West Loop 289, gives greater access Texas Tech University, downtown Lubbock and other high traffic areas and encourages development of the central business district.
Our work consisted of retaining walls and bridge structures and included approximately 1,000 drilled shafts of various sizes from 18” – 60” in diameter, approximately 34,000 linear feet.
State Highway 130 | Location: Austin, Texas
Improved mobility for Central Texas is on the way with a 40-mile extension of State Highway (SH) 130 from Austin to Seguin. SH 130 is a state-owned toll road being developed under public-private partnership with the SH 130 Concession Company. Under the agreement, the developer is designing, constructing, operating and maintaining the toll road over 50 years. The developer is also financing the project, including right of way costs, thereby lifting the financial burden from Caldwell, Guadalupe and Travis counties.
The $1.3 billion private investment in the state transportation system gives the state a share of the toll revenue, which will be used for other regional mobility improvements.
The SH 130 extension, opening in 2012, is from SH 130/SH 45 Southeast near Creedmoor to I-10 east of Seguin. Our portion of this project included installing 1,760 drilled shafts of all sizes from 18” to 132” in diameter, approximately 72,000 linear feet.
US75 North, Central Expressway | Location: Dallas, Texas
The reconstruction of US75 north was completed in November 1999. Total reconstruction cost was around $600 million. The new facility has a minimum of 8 continuous general-purpose lanes and is in a trench for six miles. Its architecturally distinctive design distinguishes it as one of the nation's most attractive urban freeways, but the real accomplishment was actually getting it built. Building a freeway in a trench on an extremely narrow right-of-way while keeping the existing freeway open was a challenging construction task. In some sections, the feeder roads are cantilevered over the main lanes because of the narrow right-of-way.
The total lineal feet of drilled shafts installed was in excess of 123,000 linear feet.
SH 121 Southwest Parkway Section 2C | Location: Fort Worth, Texas
Southwest Parkway is a $1.3 billion dollar proposed 8.7 mile, six-lane tollway that will extend from the City of Fort Worth's Central Business District at IH 30 to southwest Fort Worth. The North Texas Tollway Authority (NTTA), the Texas Department of Transportation (TxDOT) and the City of Fort Worth, in conjunction with a Citizens Advisory Group have cooperatively developed a Corridor Master Plan to guide the design development of the corridor with respect to aesthetic features.
Our portion of this project included working with Union Pacific Railroad in and around their Davidson Yard. We will install over 1,000 drilled shafts of all sizes from 18” to 96” in diameter, approximately 32,000 total linear feet.