Blog – We Want To Hear From You

Do you have questions about the Selmon Extension construction process or have you ever wondered why a certain procedure takes place? If so, submit your construction-related questions by email to, or by calling the Selmon Extension Project Information Line at 813-613-2306.

Your questions will be answered by members of the Design-Build Team.

Blog – Always Put Safety First


For your safety and the safety of others, please use caution when driving, walking or biking around the Selmon Extension Construction Zone. Wearing a safety belt is the single most effective way to protect people and reduce fatalities in motor vehicle crashes. The Selmon Extension Team takes all the necessary steps to reduce construction effects.

There are lots of moving parts to the construction process with workers and equipment present.  Allow extra time to reach your destination and always remember to obey all posted signs and speed limits.

Blog – What is a Bulldozer?


Generally bulldozers are believed to be the most heavy-duty machines on the market. Bulldozers are incredibly strong and the best choice for shifting large amounts of dirt on sites where there are wide open spaces, rough grading and grinding rock. Bulldozers are easily identified by the huge blade at the front of the equipment that is controlled with the use of hydraulic pistons.

Bulldozers aren’t just used in construction. Militaries around the world also use these machines. One notable military bulldozer is the Israel Defense Forces’ Caterpillar D93, nicknamed “Doobi.” This bulldozer was used to demolish structures during combat.

Blog – Clearing and Grubbing


You may have noticed some dirt being moved around the Gandy Boulevard medians.  Crews are currently Clearing and Grubbing in preparation for construction and maintenance and for the safety of the traveling public.  Clearing and grubbing removes existing vegetation and obstructions from the work area in preparation for dirt work.

The two-step process starts with clearing, which removes brush, grass, weeds, downed trees and other materials. Followed by grubbing, which uses a root rake to remove any underground obstructions such as stumps, roots, buried logs and other debris.


Blog – What is a Backhoe Loader?


One of the first pieces of construction equipment that we all recognize is what is known as a Backhoe Loader. This machine has long evolved into one of the most popular machines on job sites due to its versatility and maneuverability.

Backhoe loaders have a very unique appearance — they have components sticking out every which way. A backhoe loader is an interesting invention because it is actually three pieces of construction equipment combined into one unit. A backhoe loader is: A tractor, loader and a backhoe all in one. Each piece of equipment is suited to a particular sort of work. On a typical construction site, the backhoe operator usually uses all three components to get the job done. You are sure to see a Backhoe Loader on the Selmon Extension Project.

Blog – What is an Excavator?


Curious about what type of construction machine you’re looking at? Over the next few blogs you will learn about key construction machinery that probably will be used for the Selmon Extension.  There are too many to share, but we wanted to highlight the most common ones.

Excavators are used most often to shovel dirt or lift heavy pieces of materials. They are usually obvious on account of their long bucket arm attached to a cab which pivots.

The excavator was an extremely important innovation in the construction industry. With these new mechanical tools, builders were able to manipulate the landscape far more quickly and efficiently than they had even been able to before.

If there is any doubt in your mind at just how effective excavators can be when it comes to speeding along the construction process, the fact that they can do a job that is equivalent to as many as 20 manual laborers working on the same project should change your mind.

Meet the Selmon Extension Team



Did you know the Selmon Extension is a Design Build Project?  Meet our Partners.  The Selmon Extension Project is being managed by the owner and operator of the Selmon Expressway, the Tampa Hillsborough Expressway Authority (THEA), Construction Services are provided by Kiewit Infrastructure South Co., AECOM is the Designer and Atkins is providing Construction Engineering and Inspection services in support of FDOT District 7.

The Design Build concept involves pairing a design team with a construction team to create one, synergistic entity that delivers a project from beginning to end. This differs from the more traditional “design-bid-build concept” where one firm designs a project that is then put out to bid and awarded to a construction company to build.

The Design Build method can save time and money by overlapping the design and construction phases. Other benefits include improved design efficiency through on-going constructability reviews and better management of the project schedule including doing more work in a shorter amount of time.

So the next time you’re maneuvering through a sea of orange cones on Gandy Boulevard, remember that the Selmon Extension Team is working to make your everyday commute safer and more efficient – and saving time at the same time!

Quality Control

Our Selmon Extension Project team are trained, certified professional Quality Control Inspectors that reviews information from Pre-Construction to Post-Construction in every aspect of work.  They use effective electronic, written and photographic inspection techniques and provide complete and accurate documentation.

Our Inspectors evaluate every construction task from geotechnical work, drilled shafts, selection of equipment, tooling, concrete mix design, drilling methodology and more.  All Material certifications are reviewed to ensure they are current and active to ensure zero defects in delivered goods.

Total Quality Control is a commitment of the Selmon Extension Project and involves many elements. Design reviews to ensure safe and effective construction procedures are a major element. Other elements include extensive training and certifications for personnel and continually maintaining equipment.

Proper inspection requires not only technical expertise and knowledge of the materials and procedures to be used, but also sound judgment, diplomacy and good communication skills. All Contractor’s activity is inspected and documented.  Rest assured the Selmon Extension is being monitored and inspected to the highest level.

Media Alert – Crews are conducting preconstruction activities on the Selmon Extension


Media Alert

January 19, 2018
Contact Information:
Mellisa McColley, Project Information Officer

Tampa, FL – Crews are conducting preconstruction activities on the Selmon Extension

Beginning Sunday, January 21, 2018 through Friday, January 26, 2018 short intermittent lane closures may occur along Eastbound and Westbound Gandy Boulevard to allow contractors to complete geotechnical boring in the area. There will be minor traffic disruptions for motorists and noise will be kept to a minimum.

Construction activities that will not impact traffic include relocating utility poles, the removal of roots and stumps, excavation and erosion control to prepare for the construction and maintenance of the highway and for the safety of the traveling public.

Please be reminded that both the Gandy Park South on the Southside of Gandy Boulevard and the Al Palonis Park on the north side of Gandy Boulevard are closed for the duration of the Selmon Extension construction. The Gandy Boat ramp will remain open. Thank you for your patience and understanding.

Please watch out for sudden stops, merging traffic and work zone operations.  For more information, call 813.613.2306 or email


Potholing For Utilities


The Selmon Extension Construction Team is currently Potholing for Utilities.  Potholing is a method that includes vacuum excavation for the purpose of obtaining visual confirmation of utilities and underground obstructions near or crossing the planned bore path. This is a process by where a small, exploratory hole is dug along the proposed path of underground construction to ensure there’s no conflict with existing subsurface construction or any other feature that will interfere with the project.

Trenchless technology, like any subsurface construction, requires our Contractors to know exactly where any adjacent underground utilities and obstructions are located.

Contractors will be Potholing for Utilities until the middle of February.  There will be minimal impacts to the traveling public while this task is being performed.


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