Introduction

The dynamic and complex interaction of waves, currents, tides, and land in coastal areas are collectively known as nearshore processes. “Nearshore” generally refers to the coastal area where waves begin to break onshore to the landward limit of storm-induced wave action at the beach face.
It is very important that those responsible for design and maintenance of infrastructure, particularly roadways and bridges located in coastal areas, have accurate and detailed information regarding nearshore processes. Low-lying roadways and bridges are especially vulnerable to wave, current, and tide impacts during tropical storms and hurricanes, which are often associated with large storm surge, strong wave forces, and increased risk of erosion.
This section seeks to:
  1. Synthesize – at a high level – the various factors that contribute to nearshore forces (waves and currents) along the Texas coastline; and
  2. Provide guidance on estimating design wave heights and velocities necessary for engineering of coastal transportation infrastructure and coastal armoring for transportation asset protection.