What is shoreline erosion? For those of you not familiar with the term, shoreline erosion is what happens when the elements, waves, and strong weather forces such as wind grind up against where the land meets the water, displacing soil and other sedimentary particles. Over time, these simultaneous actions wreak havoc on the shoreline of a body of water, eroding and eating away at it slowly yet consistently at the turn of every season.
How do seawalls help prevent against shoreline erosion? A seawall or retaining wall is perhaps the best defense against shoreline erosion control, as its sole purpose is to ultimately protect the land from the natural, yet damaging, interaction between water and land. Of course, however, the seawall is exposed to the same destructive forces that the shoreline was once subjected to, meaning that the proper installation of a seawall or the restoration of a failing seawall is of utmost importance. While indeed having a seawall constructed in the first place is a great way to protect your waterfront property from the inevitable weathering of the shoreline, recognizing that seawalls are a long term solution to shoreline erosion is key.
As you can see, the consequences of improper drainage can be quite severe, and devastating to your shoreline. Therefore, if you notice your existing seawall starting to move, do yourself a favor and contact us at Aaron Concrete Inc. today for a FREE estimate of your seawall repair job!
The purpose of weep holes is to relieve hydrostatic pressure that inevitably will be behind the wall. These weep holes should also be maintained periodically to ensure that they do not become clogged. Panel seams which have opened up or toe failure of the wall can be an indicator of unrelieved pressure due to clogged or insufficient weep holes.
Rip rap is also used to protect soil from further erosion due to concentrated runoff. It is used to stabilize ground that is unstable due to water seepage. It is also used to slow the velocity of concentrated runoff which in turn increases the potential for infiltration.
Common reasons for seawall repairs. Probably the two most common reasons for seawall repairs are improper drainage and insufficient tiebacks (and the combination of these two is just a recipe for disaster!). With either of these issues present in a seawall, the result is often a shifting seawall that looks as though it’s been pushed outward. This is very often due to built up hydrostatic ground pressure and/or water retention of the wall itself (in other words, poor drainage).