Corps of Engineers Dock Permits on Old Hickory & Percy Priest

Both Old Hickory Lake and J. Percy Priest Lake are federally-managed reservoirs. Before you drive a piling or move a piece of riprap, you’re going to need a permit from the U.S. Army Corps of Engineers — and the homeowners who learn that the hard way usually learn it twice.

If you own a lakefront home on Old Hickory or Percy Priest, the water in front of your property doesn’t belong to you. It belongs to the federal government, and any structure that touches that water — a new dock, a replacement dock, a boat lift, a seawall, a few stones of riprap — falls under the jurisdiction of the U.S. Army Corps of Engineers (USACE), Nashville District.

That doesn’t mean you can’t build. It means you need to do it through the permit process. Here’s how it actually works.

Why These Two Lakes Are Federal

Old Hickory Lake was created by Old Hickory Dam in 1954. Percy Priest Lake came online in 1968 behind J. Percy Priest Dam on the Stones River. Both are flood-control and navigation reservoirs operated by the Nashville District of the USACE. The Corps owns the lakebed, the shoreline easement (typically up to a defined contour), and authority over anything built in or over the water.

That means a dock isn’t a backyard improvement — it’s a structure on federal property. The Corps issues a shoreline use permit that lets you build and maintain a dock on the easement adjacent to your property.

What a USACE Shoreline Use Permit Covers

A typical residential shoreline use permit on Old Hickory or Percy Priest authorizes some combination of:

• A single private dock, sized within Corps limits
• A boat lift or PWC port within the footprint of the dock
• A walkway, gangway, or stairway from the bank to the dock
• Approved vegetation management within a defined corridor
• Shoreline stabilization (riprap, biotechnical methods) where appropriate

It does not automatically allow you to install seawalls, dredge, build storage structures, or run unapproved electrical. Those require separate review.

What the Application Actually Requires

The Corps wants drawings, not napkin sketches. A complete application generally includes:

• A plan-view drawing showing your property, the dock, dimensions, and distance from neighboring docks
• A side-view (profile) drawing showing water depth, draft, and how the structure sits relative to summer and winter pool
• Material specifications — floats, framing, decking, hardware
• Proof of ownership or appropriate authorization for the adjoining parcel
• Any electrical plans, if power is going on the dock

If you’re modifying an existing dock, you also need a clear “before” and “after” that shows exactly what’s changing.

What Trips Up Most Applications

After dozens of permit packets on these two lakes, the same handful of issues come up over and over:

1. Dock size out of spec. The Corps publishes maximum square footage and slip dimensions. Drawings that exceed those limits get rejected automatically.
2. Spacing from neighbors. There are minimum offsets from adjacent property lines extended into the water. Crowding a neighbor will sink your application.
3. Vegetation removal. Clearing trees or brush within the federal easement without authorization is one of the fastest ways to start the relationship on the wrong foot.
4. Unauthorized work in progress. Submitting after you’ve already started construction makes everything harder.
5. Vague drawings. Hand-drawn sketches without scale, dimensions, or material call-outs come back for revision.

How Long It Takes

Realistic review timelines vary by season, project complexity, and current Corps workload. Simple residential dock applications can move faster than seawall or shoreline-impacting work, which often requires additional environmental review. The smart move is to start the permit conversation before you want to break ground — not after.

Why the Contractor You Hire Matters

An experienced lakefront builder knows the Corps’ size limits, drawing conventions, and what kind of detail the Nashville District wants to see. A weekend welder doesn’t. The permit work is half the job on these lakes, and choosing a contractor who handles it in-house can be the difference between building this season and building next.

What This Means for Your Project

If you’re planning a dock build, modification, lift install, or shoreline work on Old Hickory or Percy Priest, expect a permit. Build it into the timeline. Bring in a contractor who has done this before. And don’t skip steps — the Corps does enforce, and unpermitted structures can be ordered modified or removed.