Lake Nottely Water Levels & the 32-Foot Drawdown

Why Nottely Draws Down So Much

Lake Nottely sits at the headwaters of the Hiwassee River watershed, which drains into the Tennessee River system. TVA built Nottely Dam in 1941-1942 as a flood control reservoir — its primary engineering function is to store water that would otherwise cause flooding downstream in the Tennessee River valley. Nottely has a flood storage capacity of approximately 61,588 acre-feet, which is the volume of water TVA reserves by drawing the lake down each fall and winter to create room for the rainfall that the Hiwassee watershed receives during the wet season.

The 32-foot drawdown is proportionally very large relative to Nottely's surface area compared to other TVA mountain reservoirs. Lake Chatuge, the nearest comparable TVA lake, draws down only about 10 feet for flood storage. Nottely's more dramatic drawdown reflects a combination of the specific flood storage objectives TVA manages for the Hiwassee watershed and the shape of the reservoir — Nottely is deeper relative to its surface area than some other TVA mountain lakes, which means a larger vertical drop is required to create the same flood storage volume. The 32-foot figure has been consistent for decades and should be treated as a permanent feature of owning on this lake, not as an unusual or temporary condition.

The Timeline: When Nottely Goes Up and Down

TVA manages Nottely's water levels on a seasonal schedule coordinated with the nine other major tributary reservoirs in the system above Chickamauga Dam. The general pattern for a normal year:

• May through August: Lake at or near full pool (1,779 feet). Summer recreation season, docks fully operational, the lake at its most photogenic and most active.
• September through October: TVA begins gradual drawdown to build flood storage capacity. The drop is slow — measured in inches per day in early fall, not feet per week. Fall color season typically coincides with the beginning of the drawdown.
• November through January: Drawdown continues, reaching its lowest point typically in January or early February. The lake can be 28 to 35 feet below full pool at winter low, depending on annual precipitation and TVA's system-wide needs.
• February through April: TVA begins allowing the reservoir to recover. Spring rainfall and reduced downstream flood risk allow TVA to let Nottely rise back toward full pool over eight to twelve weeks.

These are typical patterns. In exceptionally wet years, TVA may draw down more aggressively to create additional flood storage. In dry years, the lake may not drop as far. The 32-foot average is the operational norm, not a ceiling. TVA's release schedules are posted daily at tva.com/environment/lake-levels/nottely and can change without notice due to weather and power system requirements.

What the Drawdown Looks Like at Your Property

The visual and practical impact of the drawdown varies dramatically depending on where on the lake you own and what the terrain and bottom depth look like at your specific dock location. These are the general categories:

Main lake channel, steep terrain, deep water (15+ feet at full pool): At 32 feet below full pool, you still have meaningful water depth at the dock — perhaps 5 to 10 feet or more, depending on the specific site. The dock stays afloat, the gangway is extended but still walkable, and the lake is navigable in front of your property. The exposed bank ring around the lake is visible but the operational impact on your specific use is manageable.

Mid-lake coves, moderate terrain, moderate depth (8-12 feet at full pool): At 32 feet below full pool, the depth in front of your dock may be minimal or zero. The dock may be sitting on the bottom, exposed mud, or in very shallow water that is not navigable for any but the shallowest-draft boats. The cove looks and feels fundamentally different than it did in summer — wide mud flats, the dock stranded far from the water's edge in the worst cases.

Upper arms and tributary channels, gentle terrain, shallow depth (3-6 feet at full pool): At 32 feet below full pool in these sections, there is no water. The upper reaches of the lake's arms literally dry out at winter low pool. Properties here are effectively landlocked from October through April, with no meaningful water access until TVA begins refilling in late winter. This is not a hypothetical — it describes real sections of Lake Nottely at winter low pool.

The January Visit Is Not Optional

For any Lake Nottely buyer who is seriously considering purchasing a lakefront property, visiting the specific property in January — or at any point during the winter drawdown period when the lake is near its lowest — is the most important due diligence step available. Not reading about the drawdown. Not having the seller or agent describe it. Actually driving to the property in January and standing at the waterline to see what the lake looks like at that point in the seasonal cycle.

Buyers who have purchased on Nottely without a winter visit have reported significant surprises — discovering post-closing that the cove they saw full of water in July is a mud flat in January, that the dock they bought in full summer condition is sitting on the bottom for three months per year. These are not hidden defects — the drawdown is publicly documented, TVA posts the water levels daily, and local agents who specialize in Nottely know to disclose it. But disclosure in words is not the same as seeing it. If visiting in January is logistically impossible before your closing, hire a local agent or property manager to photograph and video the property at winter low pool on your behalf. The few hundred dollars this costs is the cheapest insurance available on a six-figure purchase.

Monitoring Current Water Levels

TVA provides real-time and predicted water level information for Lake Nottely through multiple channels:

• TVA lake levels website: tva.com/environment/lake-levels/nottely — current observed elevations and predicted levels updated throughout the day
• TVA Lake Info app: Available for iPhone and Android, with current and predicted levels for Nottely and all other TVA reservoirs
• TVA Phone: For questions about current operating schedules, call the TVA Watershed Team in Murphy, NC at 704-837-0237

TVA's standard warning applies to Nottely as to all its reservoirs: water release schedules can change without notice due to unanticipated weather changes or power system requirements. Large amounts of water could be discharged at any time. For safety, obey all posted regulations at the dam and powerhouse area, and be aware that downstream conditions in the Nottely River below the dam can change rapidly when generation releases occur.