Anthony Dulio at American Underwater Services is an expert in culvert inspections and repairs, and he has taken the time to put together this article explaining the process of Culvert Inspection, Cleaning, and Repairs. If you have any questions about pond dredging contact Anthony about his Culvert Inspection, Cleaning, and Repairs article.
Culverts are the unsung heroes of our cities. They efficiently and safely move water under roads and bridges and help prevent catastrophic flooding. When working as intended, they’re virtually invisible. Out of sight, out of mind.
Culverts only become a problem when they run into disrepair or are otherwise clogged up by natural or man-made materials. Once that happens, city officials and maintenance crews are in a race against time as they try to locate the source of the problem and fix it before it causes any property damage.
In this blog post, we’re going to look at what exactly a culvert is, how we inspect them, and options to fix whatever problems we find.
What is a Culvert?
A culvert is defined as a tunnel that is intended to carry a stream of water underneath a railway or road. Sometimes, they can also act as a bridge to carry pedestrian and vehicle traffic. There are several different types of culverts, such as arch, pipe, and box. They type of culvert used is based upon several things such as water surface elevation, roadway type, hydraulic, and other considerations.
Culverts can be made out of one of several materials such as concrete, aluminum, High-Density Polyethylene (HDPE), or steel. The materials they’re made out of are determined by required hydraulic efficiencies, local construction practices, needed strength, overall cost, and durability.
Why do Culverts Fail?
Many things can cause a culvert to fail. Catastrophic floods or other acts of God, lack of maintenance, poor installation, corrosion of the materials they’re made out of, and erosion of the soil are just a few of the many reasons a culvert can fail.
Sometimes a tiny crack can form which will go unnoticed for many months or years. It’s not until that crack suddenly becomes bigger does the full extent of the problem emerge. At this point, it’s a race against time to locate and fix the problem before it gets any bigger.
What does a Culvert Inspection Entail?
A culvert inspection consists of much more than a guy in a hardhat, nodding his head while scribbling furiously on a clipboard. It’s a systematic process in which the engineers and divers will use several manual and technological methods at their disposal to assess the overall state of the culvert then come up with a repair plan.
If a blockage is found, it’s best to get it cleaned out as soon as possible. Sometimes blockages will be covering up areas of damage or disrepair. Companies like American Underwater Services can not only help clean up the blockages but perform repairs as well. All it takes is one minor weather event, storm surge, or other act of God to cause total and complete culvert failure.
Some of the things that the experts at American Underwater Services will inspect for are:
Cracks or separations within the pipes
No matter what material they’re made out of, pipes can and do break. Sometimes it’s due to the age and deterioration (including lack of maintenance), other times it’s due to outside forces such as weather events, sudden earth movements, and construction equipment operator errors.
A small crack can turn into massive pipe failure in a relatively short period. If the culvert hasn’t undergone an inspection, it could be a ticking time bomb. Sinkholes and complete pipe failure can occur from cracks or separations as well.
Looking for debris or sediment
Inspectors will also search for sediment or debris that is blocking the flow of water. If left uncleaned, it can lead to clogged pipes which restrict storm water runoff, and that could cause flooding of streets or property.
Inspecting for marine growth
Over time, marine growth such as algae, nuisance water plants, and other biological materials can clog up the flow of water.
The divers at American Underwater Services were sent out to a job site for a municipality on the Texas coast. City officials were wanting to figure out why their city streets were regularly flooding. The divers found that their pipes were blocked with over 50% marine growth and sand.
Nationwide Culvert Inspection, Cleaning, and Repair
At American Underwater Services, we have decades of experience helping cities and municipalities inspect, clean, and repair damaged culverts. Give us a call at (866) 594-1272 to schedule a consultation. We’re based in Fort Worth, Texas, but our technicians, divers, and field experts can travel anywhere in the country. No job is too big, or too small.