Structures
Interested in joining our Structures group?
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Our Structures Group has the capabilities and staff to match the largest local firms in Florida, with a broad spectrum of experience to meet any project’s needs. We offer design expertise ranging from miscellaneous structures to the most complex bridges, including major interchange structures, high-level water crossing bridges, and structure rehabilitation projects.
PGA structures staff is familiar with districtwide structures contracts, general engineering structure-type contracts, and regular transportation design contracts, and additionally supports FDOT in seven out of eight districts. We also work closely with FDOT implementing new technologies, such as the use of Fiber Reinforced Polymer (FRP) reinforcement on the District One US 41 over North Creek bridge replacement project, and we were the prime on District One’s first Geosynthetic Reinforced Soil-Integrated Bridge System (GRS-IBS) pedestrian bridge—the Legacy Trail Overpass over Laurel Road. We also have experience working on design-build projects such as the SR 821 (HEFT) Widening from N. of SW 40th Street to SR 836 and the Gateway Expressway/I-275 from S. of Gandy Blvd. to N. of 4th St. N.
Our structural projects (bridges and miscellaneous structures) have all been constructed without any contractor claims, which is a testament to our quality of work and expertise.
Some areas of expertise includes:
- Short-span concrete and steel bridges
- Major concrete and steel bridges
- Pedestrian overpasses
- Box and bridge culverts
- Signal structures
- Permanent and temporary retaining walls
- Overhead sign structures
- ITS structures
- Lighting structures
Featured projects
Senior Staff
Joe Losaria, PE
Principal, Structures Director
Joe Losaria, PE
Principal, Structures Director
Areas of Expertise:
Minor and Major Bridge Design (Concrete and Steel), Miscellaneous Structures and Specialty Engineering.
Joe is a renaissance man boasting a variety of hobbies. When not working or spending time with his family, you can might find Joe with a guitar, camera, drone, or piano!
Johnny Fung, PE
VP, Tampa Structures Group Leader
Johnny Fung, PE
VP, Tampa Structures Group Leader
Areas of Expertise:
Conventional and complex concrete and steel highway bridges, pedestrian bridges, miscellaneous structures
Johnny is huge fan of the UF Gators and Boston Red Sox. In his spare time, he enjoys, taking pictures of the bridges and structures that he designed over the years and improving his tennis skills.
Juan Ortega-Rosales, PE
Orlando Structures Group Leader
Juan Ortega-Rosales, PE
Orlando Structures Group Leader
Areas of Expertise:
Structural design and rehabilitation of transportation structures
Juan is a Florida transplant from California. His happy place is gaming or watching a movie with his family, but when forced to leave the house, he enjoys live music and finding new hole-in-the-wall eateries.
Dennis Tanner
Structures CADD Group Leader
Dennis Tanner
Structures CADD Group Leader
Areas of Expertise:
Structures/Bridge Plans Production, Rebar Detailing; Retaining Wall Geometric Layout
Dennis loves spending time in his workshop (usually doing a woodworking project for his daughter), fishing, golfing, or relaxing on his porch enjoying the views of the North Carolina mountains.
Chris Cromwell, PE
Associate, Chief Structures Engineer
Chris Cromwell, PE
Associate, Chief Structures Engineer
Areas of Expertise:
Concrete Bridge Design, Retaining Walls and Misc. Structures Design, Bridge Rehabilitation
Chris is a native Floridian and USF graduate. He loves spending time with his large family, so he doesn’t always have time for his hobbies. When he has spare time, woodworking is another passion.
Spencer Baker, PE
Associate, Structures Engineer
Spencer Baker, PE
Associate, Structures Engineer
Areas of Expertise:
Concrete Bridge Design, Steel Bridge Design, Finite Element Analysis, Bridge Load Rating, Retaining Walls and Misc. Structures Design
Spencer has a bachelors and a masters degree from USF. He enjoys traveling with his family of five and spending time with extended family. He is also a college football fan (and a fan of sports in general) and an active volunteer at his church.
Mark Lauckner, PE
Chief Structures Engineer
Mark Lauckner, PE
Chief Structures Engineer
Areas of Expertise:
Project management, structural design, and development of contract documents for conventional and complex bridges.
When not involved in another home improvement project on what he refers to as “the money pit,” Mark can be found on a boat somewhere in the gulf soaking up some Vitamin D!
Tommy Peake, PE
Chief Structures Engineer
Tommy Peake, PE
Chief Structures Engineer
Areas of Expertise:
Long-span Complex Bridges, Steel Bridges, Precast Segmental Concrete, and Construction Engineering
Tommy enjoys spending time with his family, traveling to new places, and going on adventures. He also enjoys home improvement projects and cheering on the Clemson Tigers.
Sullie LeFrançois, PE
Chief Structures Engineer
Sullie LeFrançois, PE
Chief Structures Engineer
Areas of Expertise:
Bridge Design, Grade Separations, Water Crossings, Railroad Crossings, Quality Control, Quality Assurance
Sullie enjoys traveling the world, scuba diving, snow skiing, and spending time with her family. Outside of work, she also teaches a graduate course on Bridge Design at Florida Institute of Technology.
Craig Kuthy
Chief Structures Designer
Craig Kuthy
Chief Structures Designer
Areas of Expertise:
Structures/Bridge Plans Production, Rebar Detailing & Cadd Set Up
Craig loves spending time with his family; working with his son on their classic mustang, and taking trips with his wife and son to visit his two daughters who are currently serving in the military. He also enjoys projects around the house, relaxing with friends by the pool during the summer, and exploring the food scene in Oklahoma City.
Jill Lukas
Chief Structures Designer
Jill Lukas
Chief Structures Designer
Areas of Expertise:
Bridge Plans Production and Misc. Structures Plans Production
Jill is a US Army Veteran. After her and her husband’s enlistment ended, they settled in Tampa to start a family. Her weekends are filled with family time, beach trips, festivals, and movie nights!