What Happens To Boulder City If Lake Mead Hits Dead Pool

This fall, Lake Mead sat lower than at any time on record, and every projection the Bureau of Reclamation released in October has it falling further in 2027. Somewhere below the surface, at 895 feet above sea level, is a line called dead pool. If the lake drops to it, Hoover Dam can no longer send water downstream, even with the reservoir behind it still holding water. On the dam's Nevada side, Boulder City has three things riding on where the lake stops. The town of about 15,000 people gets its tap water out of Lake Mead. Part of its electricity comes from Hoover's turbines. Its sales tax revenue leans on the people who come to the lake and the dam. Each of those ties sits at a different depth, and one of them has already started to give.

At Dead Pool, Hoover Dam Could No Longer Release Water Downstream

Lake Mead is still more than 100 feet above dead pool, and it keeps moving closer. The lake beside Boulder City dropped to 1,040.5 feet on August 7, 2026, edging past the old record of 1,040.58 feet set in July 2022. Reclamation measured it at 1,037.80 feet at the end of September, and the agency's October projections put it near 1,035 feet by the end of October. The driest of those projections takes the lake to about 1,004 feet in July 2027.

Dead pool is the elevation of Hoover Dam's lowest outlet, and below it, in the Southern Nevada Water Authority's words, "Hoover Dam can no longer deliver Colorado River water to downstream users." Water would still fill the deepest part of the reservoir, but only an intake set below 895 feet could reach it.

Boulder City Would Lose Its Hoover Power Before the Lake Reached Dead Pool

The level Reclamation projected for late October, about 1,035 feet, is where Hoover's power begins to fall away. Twelve of the dam's 17 turbines are not designed to run in low water, and Circle of Blue reported in May 2026 that once the lake drops below 1,035 feet, Hoover's generating capacity will be cut by 70 percent. Every one of Reclamation's October projections has the lake below that line by the end of November. Reclamation is spending $52 million on three new turbines that can generate down to 950 feet, which would hold the cut to 58 percent. At 950 feet, the dam's minimum power pool, Hoover stops producing electricity.

Boulder City runs its own electric utility, and it receives about 1.7 percent of the power the dam generates. The rest of its supply comes from federal hydropower through the Salt Lake City Area Integrated Projects, solar from the Townsite facility, and purchases on the open market through the Silver State Energy Association. In July 2026, City Manager Ned Thomas said the city's electric rates are the lowest in Southern Nevada.

Councilman Steve Walton called 1,035 feet "the magic number" that same month and said the city would need to buy power on the open market. "But that's theoretical," he added. Boulder City paid 3.945 cents per kilowatt-hour for open-market power in 2018 and 23.859 cents in 2023, about six times as much.

The Nearest Boat Ramp to Boulder City Would End 135 Feet Above the Water

Down at the shoreline, the water pulled away from Boulder City's side of the lake years before the record. The ramp at Boulder Harbor, beside Boulder Beach, became too shallow, and the National Park Service closed it in 2021 along with all services there. Boulder Beach is still open, but the receding lake has exposed silty mud where vehicles get stuck, and the park lists Hemenway Harbor as the nearest place to launch a motorboat. Hemenway has four lanes available and reaches a minimum safe elevation of 1,030 feet via a pipe mat. Low water has already cost it its fishing pier.

That 1,030-foot floor is the next one the lake reaches on its way down. Every one of Reclamation's October projections takes Lake Mead below it in 2027, including the wettest, which bottoms out near 1,021 feet in May. The park aims to keep lake access open down to about 1,000 feet where it can, and Temple Bar, on the Arizona shore, already works down to 950 feet, the same elevation where Hoover's turbines stop.

Fewer Lake Visitors Would Cut Into Boulder City's Sales Tax

Those ramps and beaches feed a town that depends on visitors. "Considering Boulder City's chief economic driver is tourism; any decline is impactful," Chamber of Commerce CEO Jill Rowland-Lagen told the Boulder City Review in October 2025. Lake Mead National Recreation Area drew around 7 million visits a year before 2020 and about 6.4 million in 2024. The city's sales tax revenue, including alcohol and tobacco levies, relies heavily on tourism, and City Manager Ned Thomas said the city was planning for less of it. Boulder City is one of only two Nevada cities that prohibit gambling, so there are no casinos in town.

Several of the area's draws sit on dry land. Reclamation says Hoover Dam hosts nearly 1 million visitors a year. The Historic Railroad Trail passes through five tunnels, and in town, the Nevada State Railroad Museum runs weekend train rides that pause in the peak summer heat. A large share of the city's budget comes from land, too. Leases on solar farms in the Eldorado Valley were projected to bring the general fund about $13.75 million in fiscal 2025, roughly a third of its revenue.

Boulder City's Taps Would Keep Running Below Dead Pool

Boulder City's tap water comes from the Alfred Merritt Smith Water Treatment Facility on Lakeshore Road, inside the city. The Southern Nevada Water Authority treats Lake Mead water there, and Boulder City buys it and sends it through its own system. The plant's supply comes up from Intake No. 3, whose opening sits at 860 feet above sea level. Since April 2022, a low lake level pumping station has lifted water from that intake to the plant, and SNWA says the two let it pump from a lake elevation of 875 feet. Hoover's releases end at 895, which leaves the plant 20 feet of lake to keep drawing from after deliveries through the dam stop.

Most of Boulder City's Used Water Would Still Miss the Lake

Once Boulder City has used that water, most of it stays out of the lake. As of late 2022, the majority of the city's treated wastewater was pumped into nearby evaporation ponds. That year, SNWA offered to build and pay for a $26 million pipeline from Boulder City's treatment facility to the treatment plant in Henderson, which would send the water down the Las Vegas Wash and into Lake Mead, where returned water does not count against Nevada's 300,000-acre-foot allocation. The council did not commit at the time. SNWA's 2025 water resource plan includes work with Boulder City to capture, treat, and recover that wastewater, backed by a $1.0 million federal grant for a feasibility study. Since 2003, the city's codes have also prohibited installing grass in commercial developments.

At dead pool, the Alfred Merritt Smith plant on Lakeshore Road would still be pulling water out of Lake Mead through an intake set at 860 feet above sea level, below the outlets that carry Hoover's releases downstream. That water would reach a town whose other links to the lake had already loosened. The ramp at Boulder Harbor has been closed since 2021, Hemenway Harbor's lanes end at 1,030 feet, and Hoover's turbines go quiet at 950. What Boulder City can still change is where its water goes after it leaves the taps. Sending it back down the Las Vegas Wash would return it to the same reservoir the intake draws from, and in SNWA's 2025 plan, that project was still at the feasibility-study stage.