Blog Archive

TCU DMC

BHB provided civil, mechanical and electrical engineering design for the 155,000 SF, $72 million renovation and addition […]

BHB’s History

Three engineers were working comfortable administrative positions at Yandell & Hiller in Fort Worth. But they missed […]

Gregory Avenue

Earlier this year, we offered a lunch-n-learn to our municipal clients, titled Roadway Reconstruction, Soft Subgrade and […]

BHB’s New Look

In 2016, a core team of professionals began discussions on a company rebrand to depict the firm’s inventive, long-term […]

25 years of Building Partners

We just celebrated our 25th Aniversary – what a milestone achievement! The festivities took place Thursday, April 27 […]

Gregory Avenue

Earlier this year, we offered a lunch-n-learn to our municipal clients, titled Roadway Reconstruction, Soft Subgrade and Lessons Learned at Gregory Avenue. This continuing education program was attended by 26 public works professionals representing 9 municipalities. Gregory Avenue was a street maintenance project that after several sessions of edge-mill and overlays, had to be reconstructed.

Gregory Avenue had a 12″ to 18″ pronounced crown and exhibited significant linear cracking. The existing east and west curb and gutters were in fair condition with few sags, but the west curb and gutter appeared to have settled and rolled in several areas. Also, record drawings indicated that the existing water line was made of cast iron and was installed in 1960.

This project consisted of the complete reconstruction of Gregory Avenue, from E. Pipeline Road, 1,150 LF northward, to Gettysburg Place. The reconstruction included the removal and replacement of the existing concrete curbs, gutters, driveways, valley gutters and asphaltic pavement. The existing 6-inch water line from Pipeline Road to Gettysburg Place was also replaced with a new 8-inch water line.

Although a typical and relatively small project, the reconstruction of Gregory Avenue proved to be quite challenging.

During construction, we encountered an unusual issue. In the middle-half of the overall project, the proof rolling indicated that the subgrade was soft/yielding (also known as pumping subgrade). Further investigation and testing suggested mechanical stabilization may be appropriate. The solution was to replace the 8-inch Cem-Line stabilized subgrade with a 6-inch flex base reinforced with a Tensar BH1200 Triaxial Geogrid. The flex base was crushed stone and the geogrid was polypropylene.

Our presentation discussed underlying soils, topography, drainage, groundwater, roadway design/cross-section, construction process, Cem-Line for subgrade stabilization, flex base as subgrade and the use of a geogrid in the subgrade. This presentation was also given at the American Public Works Association, Texas Chapter, 2017 Short Course.

Would you be interested in learning more? Contact us for more information.

CONTRIBUTORS

  • Konstantine Bakintas, PE

Blog Archive

TCU DMC
BHB’s History

Three engineers were working comfortable administrative positions at Yandell & Hiller in Fort Worth. Bill Baird was in charge of Marketing and worked as a Civil Engineer, Merlin Hampton oversaw Production and Electrical Engineering, and Les Brown was a Senior Project Manager and Mechanical Engineer.  But they missed their true passion: building partners through interactive […]

Gregory Avenue

Earlier this year, we offered a lunch-n-learn to our municipal clients, titled Roadway Reconstruction, Soft Subgrade and Lessons Learned at Gregory Avenue. This continuing education program was attended by 26 public works professionals representing 9 municipalities. Gregory Avenue was a street maintenance project that after several sessions of edge-mill and overlays, had to be reconstructed. […]

BHB’s New Look

In 2016, a core team of professionals began discussions on a company rebrand to depict the firm’s inventive, long-term solutions for which the firm is known. When Baird, Hampton & Brown (BHB) was established in 1992, we were focused on civil, electrical and mechanical projects. Today, the firm has evolved to also provide land surveying […]

25 years of Building Partners

We just celebrated our 25th Aniversary – what a milestone achievement! The festivities took place Thursday, April 27 at the Will Rogers Memorial Center from 4-8 p.m. Our clients and community are very important to all of us at BHB. That’s why we made sure to integrate both into this commemorative night. By incorporating small […]