Why did so many homes near Red Chute Bayou flood in March 2016?
The March 2016 rain fell across northwest Louisiana in a few days, more than 20 inches in total, and the bayou rose. Local news coverage reported that Bossier City neighborhoods were flooded, including areas along the bayou, and that more than 3,500 families were forced from their homes across the region.
A bayou rises when the ground can no longer take the rain and the water moves toward the lowest channels. Houses on the low side of a lot, or near a channel, take in water at the foundation and along the sills before the water reaches the rooms.
The lesson for the homeowner is that bayou water is not always a river crest. It can arrive from the rain running off the lot and the streets as much as from the bayou itself, so the cleanup and the repair both need to look at the outside of the house as well as the inside.
How does bayou flood water get into a house?
Bayou water usually enters through the foundation edge, the crawl-space vents, the bottom of the doors and any gap where the house meets the ground. It can also come up through a floor drain when the drainage system is overloaded, and that is a separate job from the rest.
Once inside, the water runs along the sill plate and under the floor, and it reaches the wall cavities through the bottom plates. A house can look nearly dry on the surface while the framing near the foundation is still holding water.
The crew traces the route from the wet areas to the entry point. Tracing the route matters because the repair has to close it; drying a wall without closing the gap means the next rain brings the water back.
Can a bayou-flooded floor be saved?
Hard surfaces such as sealed concrete and some tile can often be cleaned and dried in place. Carpet pad, soaked wood subfloors and insulation are usually removed where the readings show they cannot be dried back to a safe state.
Solid-wood flooring may be saved if it is dried quickly and its moisture readings fall back, but it can cup or lift if the water has been held under it for long. The crew reports what it sees and explains the choice before any board is lifted.
Subfloor panels that have swelled or softened are removed and replaced, because they cannot support a finish floor until they are dry and sound. The replacement is planned once the structure reaches the dry goal.
What moves the cost of bayou flood damage up or down?
The depth of water, how long it stood, the number of materials that must be removed, whether the crawl space and the garage were affected, and how many visits the drying takes all change the cost. No price figure is published, and the price is explained and approved before work begins.
Crawl-space work and foundation-edge drying take more time than work on a finished floor, because access is tight and the readings have to be taken at several points. Those hours are part of the price, and the crew explains them.
Keeping as much of the house as the readings allow lowers the total. The crew's decisions on removal and retention should be explained to you one by one, with the reasons, before any work starts.
When can the repairs start on a bayou-flooded house?
Repairs can start when the readings in the framing, the subfloor and the foundation edge have reached the dry goal and stayed there across more than one check. Starting before that can trap moisture behind new finishes.
Some repairs need a permit, particularly where structure, wiring or plumbing is replaced. The Bossier Parish and City of Bossier City permit offices answer repair-permit questions for their own jurisdictions. Fees and permit types have not been verified for this page, so confirm them before work starts.
The crew sends the drying report to the owner, and that report is what a contractor will want to see before closing up walls. Keep a copy with the repair paperwork.