Smith Lake is about 264 feet deep at its maximum depth near the dam, and its average depth is often reported around 65 feet. The lake’s depth varies a lot by location, so some areas are much shallower while others drop well over 150 feet.

Quick Scoop

  • Maximum depth: 264 feet at the dam.
  • Average depth: about 65 feet.
  • Depth range: some areas are shallow, while other pockets exceed 150 feet.
  • Context: Lewis Smith Lake is also described as the deepest lake in Alabama.

Why it varies

Smith Lake is a reservoir with long, finger-like arms, so the underwater terrain changes a lot from cove to cove. That means boating, fishing, and swimming conditions can feel very different depending on where you are on the lake.

TL;DR: Smith Lake is very deep for Alabama, with a maximum depth of 264 feet and an average depth of roughly 65 feet.