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!

Why do you post “Construction Ahead” signs when no work is going on?



A lot of times, you’ll see construction ahead signs and see no workers on the job site. Even if you don’t see any obvious construction workers, it’s still imperative that you obey the posted speed limit signs. Never assume that just because you don’t see workers right now, that they won’t be working a little ways up the road or that the speed limit doesn’t apply.

Not only will speeding in a construction zone put workers at risk, but you could also receive a hefty fine for doing so if you’re caught by police.


Merge Promptly at Lane Closures



One of the most common causes of accidents and road rage in construction zones is that of lane closures. When you see a sign posted for an upcoming lane closure, be sure to merge as soon as safely possible. Do not wait until the lane is coming to an end to force your way over into the next lane over. This is not only rude to the other drivers who followed the posted signs and merged when they were supposed to, but it can also be dangerous if you cut somebody off or even cause a road rage incident.

Construction zones can be frustrating and dangerous to navigate, but all drivers have a responsibility to keep themselves and others safe while behind the wheel. We will work to keep lane closures to a minimum and during non-peak hours.  Be sure to keep these tips in mind the next time you find yourself needing to navigate through a construction or work zone.

What Exactly Are Merging Tapers?



Merging tapers move traffic laterally from the normal lane to an adjacent lane of traffic at prevailing highway speeds.  Merging tapers require the longest taper lengths because drivers are required to merge into a common road lane.  An example of a merging taper is one used on an interstate highway lane closure where two lanes are required to “merge” into one.  A merging taper should be long enough to enable merging drivers to have adequate advanced warning and time to merge into a single lane before the end of the transition.

Merging tapers are set up with orange traffic cones to transition drivers from one lane to another lane.  Be on the lookout in the future as we could have a few of these along Gandy Blvd. so our workers can build the Selmon Extension.  These merging tapers help in aiding the workers a safe working environment.


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