Dowel bar retrofit

Okay kiddo, so dowel bar retrofit is like when we add some extra support to the concrete on the road. You know how sometimes you see big cracks in the road or it starts to break apart? Well, that's because the concrete can't handle all the heavy trucks and cars driving over it.

To fix that, engineers use these special metal bars called dowel bars. They are kind of like big, strong toothpicks that they stick into the concrete before it dries. These dowel bars help the concrete stay strong and not crack as easily.

Now, sometimes the old roads don't have enough dowel bars in them or they weren't put in correctly. That's when we have to do a dowel bar retrofit. This means we have to drill holes into the old concrete and put in new dowel bars to make the road stronger.

It's kind of like getting a filling at the dentist. When you have a big hole in your tooth, the dentist fills it up with a strong material to make it strong again. The dowel bars do the same thing for the concrete on the road!