Tidwell Park Is Now Closed. The Three-Year Lake Lanier Detour Has Begun

Tidwell Park is now closed for a three-year construction project to build a new raw-water intake for Forsyth County. Boaters will need to use alternative Lake Lanier ramps while construction continues, including work along nearby Pilgrim Mill Road.

Tidwell Park’s long construction closure is no longer an approaching inconvenience. The gate is now closed, removing a familiar Lake Lanier access point from Forsyth County’s recreation map for approximately three years.

The park closed Aug. 3 to accommodate construction of Forsyth County’s new raw-water intake facility. A reopening is expected in 2029, although the larger water project will continue beyond the park closure.

North Atlanta Star first warned residents about the approaching closure in July. Its effect is now practical: boaters, anglers and families accustomed to launching at Tidwell must choose another access point, and the remaining ramps may become busier during warm-weather weekends.

Where Tidwell users can go instead

Forsyth County previously identified four locally operated Lake Lanier parks with ramps that would remain available when federal facilities closed. Visitors should still confirm the day’s status before towing a boat to the lake, particularly after storms or during periods of unusually high attendance.

Alternative access pointGeneral locationPractical consideration
Charleston ParkNorthern Forsyth shoreUseful for residents approaching from north and east Forsyth
Mary Alice ParkNear the City of CummingConvenient to Cumming and the GA-400 corridor
Six Mile Creek ParkSouth ForsythOne of the more practical substitutes for southern Forsyth residents
Young Deer Creek ParkEastern ForsythAnother option for boaters coming from the GA-141 and eastern Forsyth area

The county maintains a Lake Lanier boat-ramp directory. The U.S. Army Corps of Engineers also publishes day-use locations and launch fees, but operating conditions can change faster than general facility directories are updated.

That makes a same-day check particularly important. A ramp that is normally open can become unavailable because of maintenance, federal staffing, storm damage or water conditions.

Why a park must close for a water project

Tidwell is not closing for an ordinary park renovation. The shoreline site is central to one of Forsyth County’s largest long-term infrastructure projects.

Forsyth currently depends on a Lake Lanier intake owned by the City of Cumming for its raw-water supply. The county purchases that untreated water and then moves it through its own treatment and distribution system.

A 2021 U.S. Supreme Court ruling in the long-running regional water dispute cleared the way for Forsyth to develop its own intake. The county describes the project as a move toward greater water independence and redundancy, rather than an effort to increase the total amount withdrawn from Lake Lanier.

The planned system includes:

  • An intake positioned in deeper lake water
  • A six-foot-diameter tunnel extending approximately 2,000 feet beneath the lakebed
  • A shoreline pump station
  • Approximately three miles of 48-inch transmission pipeline connecting the intake with the existing county system

The initial pumping capacity is planned at 40 million gallons per day, with infrastructure allowing an eventual increase to 80 million gallons per day. Forsyth has said the separate intake could save approximately $3 million annually in raw-water purchases while reducing the risk of relying on a single shared facility.

The project follows the county’s recently completed expansion of its Antioch Road water-treatment plant. That $21 million project increased peak treatment capacity from 33 million to 40 million gallons per day, according to Forsyth County’s June completion announcement.

Together, the projects prepare the water system for a county population now approaching 283,000.

Pilgrim Mill Road will feel the construction too

The disruption will not remain entirely behind Tidwell’s closed entrance.

The intake must be connected to the county’s existing pipeline network, placing part of the construction corridor along Pilgrim Mill Road. Previous investigative work for the project has required intermittent lane closures between Holtzclaw Road and Tidwell Park.

Residents along that corridor should expect additional construction notices as utility exploration, pipeline work and other phases advance. Those effects are likely to be intermittent rather than one continuous road closure, but they may add delays to a route already used heavily by neighborhoods and Lake Lanier traffic.

Forsyth is also taking a larger role at the lake

The Tidwell closure arrives as Forsyth County assumes greater responsibility for several recreation properties previously managed primarily by the Army Corps of Engineers.

A new cooperative agreement covers Tidwell, Vann’s Tavern, Two Mile Creek, Keith’s Bridge and Long Hollow. The county will contribute maintenance and visitor services while the Corps remains responsible for major capital work and federal land management.

County officials say the arrangement is intended to improve upkeep and keep more recreation access available. Tidwell is the immediate exception because the water-intake construction requires a prolonged shutdown.

The agreement may become increasingly important during the closure. If other ramps experience temporary staffing or maintenance problems, Forsyth will need to manage heavier demand at the access points that remain available.

What happens next

For recreational users, the immediate adjustment is straightforward: remove Tidwell from lake-day plans and identify a backup ramp before leaving home.

For nearby residents, the project will become more visible as construction moves from shoreline work into tunneling, pumping infrastructure and pipeline installation.

The tradeoff is unusually clear. Forsyth County is temporarily giving up a well-used recreation site to reduce its long-term dependence on another government’s water intake. Residents will not receive the full benefit for several years, while boaters and anglers will feel the inconvenience immediately.

Tidwell’s eventual reopening will therefore mark more than the return of a boat ramp. It will signal that one of the most disruptive phases of Forsyth County’s push for an independent water supply is finally complete.

Photo, courtesy of Flavio Villanustre

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