Newlands Project

The Bureau of Reclamation has a contract with the Truckee-Carson Irrigation District to operate and maintain the Newlands Project on behalf of the Federal government. The Newlands Project has features in both the Carson and Truckee River basins with the Truckee Canal allowing interbasin diversions from the Truckee River to the Carson River. The Newlands Project is made up of two divisions, the Truckee Division and the Carson Division. The Truckee division includes:  Lake Tahoe Dam, Derby Diversion Dam, the Truckee Canal and irrigation delivery system for service to approximately 5,000  acres of irrigated lands. The Carson Division includes: Lahontan Dam, Lahontan Power plant, Carson River Diversion Dam and canals, laterals, and drains for irrigation of approximately 55,000 acres of farmland.

interactive image of Lake Tahoe DamFacility:  Lake Tahoe Dam - Lake Tahoe Dam was built in 1913 but was not acquired by the Bureau of Reclamation for the Newlands Project until 1915. The concrete dam has 17 vertical gates and is used to regulate the outflow into the Truckee River. It is 18 feet high and 109 feet long. The storage capacity is 744,600 acre-feet.



interactive image of Derby DamFacility:  Derby Diversion Dam - This concrete dam was built in 1905 on the Truckee River about 20 miles east of Reno. This feature of the Newlands Project was the first construction project of the Bureau of Reclamation. It is 31 feet high and 1,331 feet long. The dam diverts water into the Truckee Canal for delivery to the Truckee Division of the Newlands Project and to Lahontan Reservoir.


interactive image of Lahontan DamFacility:  Lahontan Dam - Lahontan Dam was completed in 1915. It is an earth and gravel fill structure 162 feet high and 1,500 feet long. The storage capacity of Lahontan Reservoir at the spillway level is 289,721 acre-feet and with the addition of 20-inch flashboards will hold 312,984 acre feet. The dam is the only major reservoir on the Carson River and stores water diverted from the Truckee River and the natural flows of the Carson River

Facility:  Carson River Diversion Dam - The Diversion Dam is located on the Carson River approximately 5 miles below Lahontan Dam. It is a contrete structure 23 feet high and 241 feet long. It is used to divert water into two main canals for irrigation of lands in the Carson Division of the Newlands Project.

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Old Lahontan Power Plant Title Transfer

interactive image of Derby Dam

The Secretary of the Interior is authorized under the John D. Dingell, Jr. Conservation, Management, and Recreation Act of 2019 (Title VIII–Water and Power) to transfer title to Bureau of Reclamation (Reclamation) project facilities to qualifying entities on the completion of repayment of capital costs.

On May 24, 2019, the Truckee-Carson Irrigation District (TCID) requested title to the Old Lahontan Power Plant (OLPP) and appurtenances from the United States. The OLPP title transfer area consists of a total of approximately 11 acres. TCID currently provides the care, operation, and maintenance of Newlands Project features, including OLPP, under a 25-year Reclamation contract (No. 7–07–20–X0348).

The OLPP, a stone and concrete structure containing three generators, was completed in 1911 to facilitate the construction of Lahontan Dam. It sits on Federal lands that were acquired for the Newlands Project approximately 650 feet downstream of Lahontan Dam on the left bank of the Carson River. The OLPP was originally powered by water directly from the Truckee Canal; water is currently supplied from Lahontan Reservoir. After passing through OLPP the water is used for authorized Newlands Project purposes downstream.

Reclamation will execute a title transfer agreement to convey OLPP, associated electrical generation equipment located therein, and other structures (e.g., original Truckee Canal penstock) to TCID. There is no anticipated change in OLPP power generation operations under the title transfer, and TCID will continue to receive the revenue from power sales. TCID will be responsible for all future operations and maintenance of transferred structures.

For more information on the OLPP title transfer, contact Deborah Page at 775-884-8392 or

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Last Updated: 8/27/21