Bureau of Reclamation

The Bureau of Reclamation is the federal agency within the Department of the Interior that manages water resources in the 17 western states — operating over 600 dams, 53 hydroelectric power plants, and 300+ reservoirs that deliver water to more than 31 million people and irrigate approximately 10 million acres of farmland. Created by the Reclamation Act of 1902 to "reclaim" arid western lands through irrigation, the Bureau has grown into the largest wholesale water supplier and second-largest hydroelectric power producer in the United States.

Current Law (2026)

Legal Authority

• 43 U.S.C. § 372 — Water right as appurtenant to land (the right to use reclamation water is tied to the land irrigated; beneficial use is the basis, measure, and limit of the right)
• 43 U.S.C. § 373 — General authority of Secretary (Secretary of the Interior authorized to perform all acts and make regulations necessary to carry out reclamation law)
• 43 U.S.C. § 373a — Commissioner of Reclamation (Bureau administered by a Commissioner appointed by the President with Senate confirmation)
• 43 U.S.C. § 383 — State laws unaffected (nothing in reclamation law affects or interferes with state water law or vested rights acquired under state law — the doctrine of federal deference to state water allocation)
• 43 U.S.C. § 390aa — Reclamation Reform Act of 1982 (amends and supplements original reclamation law; commonly referred to as RRA)
• 43 U.S.C. § 390dd — Limitation on ownership (irrigation water may not be delivered to qualified recipients for lands exceeding 960 acres of class I land or equivalent — the "acreage limitation")
• 43 U.S.C. § 390ee — Pricing (water delivered to landholdings exceeding the acreage limitation must be priced at full cost; water within the limitation is priced at subsidized project rates)

How It Works

The Reclamation Act of 1902 launched one of the largest public works programs in American history. The premise was simple: the arid West could not be settled and farmed without large-scale irrigation infrastructure that no private entity could afford to build. The federal government would construct dams and irrigation systems, and settlers would repay the costs over time through water charges. This model produced Hoover Dam, Grand Coulee Dam, Glen Canyon Dam, and hundreds of other projects that transformed the western landscape.

Water rights under reclamation law follow the western doctrine of prior appropriation rather than the eastern riparian rights system. The critical principle (§ 372) is that "beneficial use shall be the basis, the measure, and the limit of the right." Water rights are appurtenant to the land — meaning they belong to the specific parcel being irrigated, not to the water user personally. Crucially, § 383 preserves state water law: reclamation projects operate within state allocation frameworks, and the Bureau must obtain water rights under state law.

The Reclamation Reform Act of 1982 (RRA) updated the acreage limitation — the original anti-monopoly provision designed to ensure that reclamation benefits went to family-sized farms, not large agribusinesses. Under the RRA, a "qualified recipient" (an individual or legal entity meeting residency and reporting requirements) may receive subsidized irrigation water for up to 960 acres of class I equivalent land. Landholdings exceeding this limit may still receive water but at "full cost" — which includes interest on the federal construction investment. This pricing distinction creates a significant financial incentive to stay within the acreage limit.

The Bureau's infrastructure portfolio is enormous. Major facilities include Hoover Dam (Lake Mead), Grand Coulee Dam (one of the largest concrete structures ever built), Glen Canyon Dam (Lake Powell), and hundreds of smaller dams, canals, and pumping stations. These facilities serve multiple purposes: irrigation, municipal and industrial water supply, hydroelectric power, flood control, recreation, and fish and wildlife habitat. See Federal Water Reclamation for the broader policy context.

Hydroelectric power from Reclamation facilities is marketed by the Western Area Power Administration and other power marketing administrations. Revenue from power sales helps repay project construction costs and subsidize irrigation water delivery.

Law enforcement authority at Bureau facilities was established by § 373b, allowing the Secretary to issue regulations for public safety and security at dams, reservoirs, and other reclamation facilities — reflecting post-9/11 concerns about infrastructure protection.

How It Affects You

If you farm or ranch in the West with a Reclamation water contract: Your water deliveries, rates, and acreage limitations are all governed by reclamation law and your irrigation district's contract with the Bureau. The 960-acre acreage limitation under the Reclamation Reform Act means that if your farming operation (counting related entities) exceeds 960 acres, water for the excess acreage must be priced at "full cost" — which includes the original federal construction investment with interest, typically 3–10× the subsidized project rate. Many large western farming operations have structured land ownership to stay within the 960-acre limit per qualified recipient; the Bureau audits these arrangements and has assessed back-charges for ownership structures that exceeded limits. You must file an Annual Certification (Form 7-2090 or equivalent for your district) each year confirming your landholding status. Contact your local irrigation district or the Bureau's regional office at usbr.gov to understand your acreage limitation exposure. Water delivery schedules are set by your district and are subject to reduction during drought emergencies — the Bureau can curtail deliveries under its contracts when reservoir levels trigger shortage conditions.

If you depend on Colorado River water — agriculture or municipal: The 2007 Colorado River Interim Guidelines governing shortage declarations expire after 2026, and the seven Colorado River Basin states are in active negotiations over post-2026 operating rules. This is the most consequential western water policy development in decades. Arizona, Nevada, and Mexico took substantial cuts under recent shortage declarations as Lake Mead dropped toward dead pool (27% capacity in 2022). The structural deficit — the Colorado River is over-allocated by approximately 1–3 million acre-feet per year relative to recent average flows — has not been resolved by recent wet years. If your operation depends on Colorado River water (delivered through Central Arizona Project, Southern Nevada Water Authority, MWD of Southern California, or dozens of irrigation districts), the post-2026 framework will determine how cuts are apportioned. Track negotiations at the Colorado River Research Group (coloradoriverresearch.org) and the Bureau's usbr.gov/lc/region/g4000/crsp.

If you live in a western city served by Reclamation infrastructure: More than 31 million people in 17 western states receive drinking water ultimately traced to Bureau of Reclamation projects — from Denver's Colorado-Big Thompson deliveries to Phoenix and Tucson's Central Arizona Project supply. Your local water utility manages the final delivery, but the upstream infrastructure is federal. Drought years directly affect reservoir levels that determine how much water your utility receives under its Reclamation contracts. Water utilities across the West have invested in demand management, recycled water programs, and alternative supplies to reduce Colorado River dependence — but many cities remain structurally exposed. Check your utility's Urban Water Management Plan (required for California utilities, voluntary elsewhere) to understand supply reliability planning.

If you recreate on Reclamation reservoirs: Lake Mead, Lake Powell, Blue Mesa, Flaming Gorge, and hundreds of other Reclamation reservoirs are major recreation destinations managed under Bureau recreational use authorities. But recreation is the lowest-priority use — water supply, power generation, and flood control come first. When Lake Powell dropped to 22% capacity in 2022, boat ramps were closed and some areas became inaccessible. Reservoir levels recover slowly and are highly variable with precipitation. Before planning a trip to a Reclamation reservoir, check current water levels through the Bureau's real-time data at water.usbr.gov — particularly for Lake Mead and Lake Powell, which are monitored obsessively by western water watchers and have dedicated level-tracking sites.

State Variations

Reclamation law operates within the framework of state water law:

• Each of the 17 western reclamation states has its own water allocation system based on prior appropriation
• The Bureau must obtain water rights under state law for its projects
• State water agencies regulate water rights, adjudicate disputes, and manage allocations that interact with federal reclamation deliveries
• Interstate compacts (e.g., Colorado River Compact) allocate water among states sharing river basins served by Reclamation projects
• State environmental and land use laws affect Reclamation project operations

Implementing Regulations

• 43 CFR Part 404 — Reclamation Rural Water Supply Program (§§ 404.12–404.14 — construction assistance, prioritization criteria, notice of assistance opportunities)

• 43 CFR Part 3816 — Mining in areas managed by Reclamation (§ 3816.3 — Reclamation recommendations to open lands)

• 43 CFR Part 3601 — Mining and reclamation on public lands (§§ 3601.40–3601.43 — mining and reclamation plans, required information, BLM approval process)

• 43 CFR Part 423 — Public Conduct on Bureau of Reclamation Facilities, Lands, and Waterbodies: the visitor conduct and use regulations that apply to BOR's approximately 6.9 million acres of land and 476 reservoirs (including Lake Mead, Lake Powell, Hoover Dam, Glen Canyon Dam, and hundreds of other major federal water infrastructure sites and recreation areas). Part 423 establishes the rules that visitors must follow and the authority Reclamation has to open, close, and manage public access. Key provisions:

  • §§ 423.10–423.18 — Open and closed areas: all Reclamation lands and facilities are open to lawful public use unless specifically closed; closed areas include dam faces, power plants, pump stations, intake structures, control facilities, and similar infrastructure where safety or security requires exclusion; an authorized official may close additional areas in non-emergency situations with advance notice and documentation of the reason; emergency closures (floods, fire, law enforcement incidents) take effect immediately; closures must be physically posted with signs, fences, or buoys
  • § 423.20–423.21 — General conduct rules: visitors must comply with all applicable federal, state, and local laws, plus Reclamation-specific regulations and posted notices; visitors are responsible for informing themselves of applicable rules — ignorance of a closure or restriction is not a defense
  • § 423.25 — Vandalism and tampering: tampering with, moving, or adjusting Reclamation property (including dam controls, gate mechanisms, or safety equipment) is prohibited — this is the provision that would apply to anyone interfering with water control infrastructure; carries criminal liability under federal statutes
  • § 423.29 — Natural and cultural resources: destroying, removing, or disturbing natural resources (fish, wildlife, plants, rocks, soil) or cultural resources (historic structures, archaeological sites, human remains) on Reclamation land is prohibited; this applies even to apparently minor disturbances like removing rocks or picking plants
  • § 423.30 — Weapons and firearms: visitors may possess firearms on Reclamation lands in accordance with applicable federal, state, and local law (reflecting the general principle that Reclamation land is not a weapons-free zone), but firearms may not be discharged in ways that create safety hazards or violate state hunting regulations; explosives and fireworks are generally prohibited without authorization
  • § 423.31 — Fires: fires must never be left unattended and must be fully extinguished before departure; no fires in closed or restricted-fire areas; an authorized official may impose additional fire restrictions seasonally or during drought conditions
  • § 423.32 — Hunting, fishing, and trapping: permitted in accordance with federal and state law on areas open to such activities; state fishing licenses are required; Reclamation reservoirs are among the West's most significant public fishing areas — Lake Mead, Lake Powell, Shasta, and dozens of other large reservoirs attract millions of anglers annually
  • § 423.33 — Camping: permitted on Reclamation lands generally, subject to restrictions established by the authorized official; many Reclamation recreation areas are managed under agreement with the National Park Service, Army Corps of Engineers, or state agencies that impose specific camping rules and fees; dispersed camping policies vary by project
  • § 423.36 — Swimming: permitted on Reclamation waters at the swimmer's risk, except where prohibited by signs, fences, buoys, or barriers; closed swimming areas typically include near-dam zones, intake areas, and areas with hazardous currents or underwater infrastructure; "swim at your own risk" is the baseline posture at most Reclamation open-water sites
  • § 423.38–423.39 — Vessels: boats and watercraft must comply with federal (Coast Guard) and state vessel laws; personal watercraft (jet skis) are subject to any additional Reclamation restrictions; vessels must be in safe, seaworthy condition; motorized vessels are subject to state speed limits and no-wake zones posted on the water
  • §§ 423.60–423.65 — Violations and sanctions: violations of Part 423 are punishable under 43 U.S.C. § 373a by fines up to $5,000 and imprisonment up to 6 months; BOR officers (and officers from managing partner agencies operating under BOR authority) may issue citations; repeat violations may result in exclusion orders barring a person from Reclamation lands

  Bureau of Reclamation manages roughly 90,000 miles of irrigation canals, 476 dams, and associated reservoir recreation areas — making it one of the federal government's largest providers of western outdoor recreation alongside BLM and the National Park Service. Recent rulemakings: 88 FR 80992 (November 21, 2023) — updated Part 423 to clarify firearms provisions and align with current federal firearms law; 73 FR 75349 (December 11, 2008) — original Part 423 rulemaking establishing the current framework.

Pending Legislation

• HR 7487 — Broaden hydropower development on Bureau of Reclamation projects, clarify FERC authorization rules. Status: Introduced.

Recent Developments

The Bureau of Reclamation is at the center of the western water crisis. Severe drought and declining Colorado River flows have forced unprecedented water cuts to Arizona, Nevada, and Mexico, and driven emergency negotiations among the seven Colorado River basin states. Lake Mead and Lake Powell have dropped to historically low levels, threatening both water supply and hydroelectric generation. The Infrastructure Investment and Jobs Act (2021) provided billions in new funding for western water infrastructure, including aging dam rehabilitation, water recycling, desalination, and drought resilience. The Bureau has been increasingly involved in water conservation, demand management, and tribal water rights settlements as the gap between western water supply and demand continues to widen.

• Colorado River post-2026 framework negotiations: The 2007 Colorado River Interim Guidelines that govern shortage declarations expire after 2026. Negotiations among the seven Colorado River Basin states (upper: Colorado, Utah, Wyoming, New Mexico; lower: Arizona, Nevada, California), plus federal agencies and tribal nations, have been underway since 2022 to develop post-2026 operating rules. The key tensions: California holds senior water rights and has resisted deep cuts; Arizona and Nevada took large cuts under interim shortage declarations; upper basin states want to protect their future development rights. A post-2026 framework is critical — without new guidelines, the 1922 Colorado River Compact's all-or-nothing structure could trigger litigation among states.
• Lake Mead/Powell recovery and 2023-2024 wet years: Unusually heavy snowpack in 2023 partially refilled Lake Mead and Lake Powell from their historic lows (Mead dropped to 27% capacity in 2022). The recovery bought time for negotiations but did not solve the structural deficit — the Colorado River is over-allocated by an estimated 1-3 million acre-feet per year relative to average annual flow in recent decades. Water managers emphasize that good years are temporary and structural cuts are still needed.
• DOGE and Bureau of Reclamation: DOGE reviews of Interior Department agencies in 2025 included the Bureau of Reclamation. Staffing reductions affected dam operations, water delivery contracts, and environmental compliance programs. Western water users — including the agricultural sector that receives ~80% of Bureau water deliveries — raised concerns about disruptions to contract water delivery operations that serve millions of acres of irrigated farmland.
• IIJA water infrastructure spending: The Infrastructure Investment and Jobs Act provided $8.3 billion to the Bureau of Reclamation for water storage, recycling, desalination, aging infrastructure, and drought resilience. Projects funded include large-scale water recycling (Southern California's Pure Water project, expanding Arizona's water banking), dam safety rehabilitation (Hoover, Glen Canyon), and rural water supply. The DOGE freeze on federal grants created uncertainty about IIJA water project funding in 2025, though infrastructure spending has faced less political opposition than climate-specific grants.