H1 2026 Evaluation
Myanmar Reservoir Transparency
F1Opaque — Ranked #150 out of 167 countries
weight 30%
weight 20%
weight 15%
weight 13%
weight 10%
weight 8%
weight 5%
Primary source evaluated
Department of Meteorology and Hydrology (DMH) — moezala.gov.mm
https://www.moezala.gov.mm/hydrological-divisionDimension breakdown
Data Availability
20% of total score
Coverage is 0 (no national reservoirs >10 hm³ with public data). Quality dimensions for the COVERED subset are therefore 0 by definition. Original notes preserved below: No government source publishes current reservoir storage volumes publicly. The DMH (moezala.gov.mm) provides daily river water-level forecasts at gauge stations for flood early warning, but these are river stages, not reservoir storage. MOEP (Ministry of Electric Power, moep.gov.mm) returns HTTP 404 as of mid-2026. MOALI's irrigation department website (irrigation.gov.mm) is similarly unreachable. The Shweli I–III cascade, operated by a Chinese joint venture, publishes no operational data. Lawpita/Baluchaung plants are in active conflict zones in Kayah State and have no public reporting. Hydropower generation statistics cited in World Bank and RFA reports are derived from secondary sources, not from direct government data portals.
Technical Accessibility
15% of total score
Coverage is 0 (no national reservoirs >10 hm³ with public data). Quality dimensions for the COVERED subset are therefore 0 by definition. Original notes preserved below: No REST API, no bulk download, and no open machine-readable format identified for reservoir data. The DMH Climate Data Portal (dmh-cdp.wowspace.org) exists but was unreachable during research (connection timeout) and covers meteorological/climatological series rather than reservoir storage. The moezala.gov.mm site publishes bulletins as web pages and PDF documents without structured data endpoints. Myanmar's 2025 Cyber Security Law and nationwide VPN blocks using Deep Packet Inspection further restrict external access to any government digital infrastructure that remains online.
Coverage
30% of total score
v1.3.0 capacity-weighted: coverage = round(100 × covered_capacity_hm³ / total_national_capacity_hm³). Myanmar's total reservoir capacity above 10 hm³ is approximately 50,000 Mm³ across ~30-60 qualifying reservoirs, including the major hydropower assets (Yeywa 790 MW, Shweli I 600 MW, Sedawgyi, Baluchaung/Lawpita ~168 MW, Mone Chaung, Paunglaung, Upper Paunglaung) plus a subset of the 308+ IWUMD irrigation reservoirs (IWUMD reported 24,953 MCM aggregate capacity across 308 reservoirs as of 2016). No public storage data is published for any of these by any Myanmar government source: MOEP and MOALI irrigation department websites are offline post-coup, hydropower operators publish nothing, and DMH covers river gauges only. Covered capacity = 0 Mm³. Coverage = round(100 × 0 / 50,000) = 0.
Historical Depth
13% of total score
Coverage is 0 (no national reservoirs >10 hm³ with public data). Quality dimensions for the COVERED subset are therefore 0 by definition. Original notes preserved below: No machine-readable historical reservoir storage time series is publicly accessible from any Myanmar government source. Global databases (GRanD, GeoDAR, Global Dam Watch) include Myanmar dam locations and static attributes derived from pre-2021 secondary sources, but contain no operational time-series storage data. The Open Development Myanmar datahub lists 76 water-resources datasets, but these are predominantly static GIS shapefiles and pre-coup policy documents. DMH maintains historical climate and river-gauge records internally, but these are not published as downloadable datasets and do not include reservoir storage. The USGS/NASA GRACE terrestrial water storage anomaly covers Myanmar at coarse resolution (>300 km grid), providing no facility-level historical series.
Update Frequency
10% of total score
Coverage is 0 (no national reservoirs >10 hm³ with public data). Quality dimensions for the COVERED subset are therefore 0 by definition. Original notes preserved below: The only hydrological data updated with any regularity is DMH's daily river water-level forecast (moezala.gov.mm), which covers gauge stations for flood management — not reservoir storage volumes. No reservoir storage dataset from any Myanmar government source is updated on a defined schedule. Frontier Myanmar's energy monitor aggregates secondary reports from Irrawaddy, RFA and World Bank, but these are journalistic summaries rather than primary data releases. Hydropower generation declined 15% in 2024 and 34% in January 2025; these figures come from investigative journalism, not official statistics portals.
Methodological Transparency
8% of total score
Coverage is 0 (no national reservoirs >10 hm³ with public data). Quality dimensions for the COVERED subset are therefore 0 by definition. Original notes preserved below: No documentation of reservoir storage measurement methodology has been identified from any Myanmar government agency. IWUMD's pre-2021 publications list aggregate irrigation capacity figures without describing gauge networks, bathymetric survey methods, or data-quality protocols. Hydropower plant operators — including the Chinese joint venture running Shweli I (Yunnan Joint Power Development Company) — publish no technical methodology for storage monitoring. Myanmar did not participate in the ICOLD World Register of Dams quality-assurance processes. There is no equivalent to a national hydrological yearbook or measurement standards document publicly available.
Language and Usability
5% of total score
The DMH website (moezala.gov.mm) offers a language toggle and some pages are partially available in English, covering weather forecasts and flood bulletins. However, the data that does exist — limited to river gauge forecasts — is primarily in Burmese/Myanmar script. No reservoir-specific content is available in English from any official source. The Open Development Myanmar portal (opendevelopmentmyanmar.net) is English-language and hosts water-resources documentation, but its reservoir datasets are static shapefiles with no operational storage data. International users face compounding barriers: government sites unreachable, internet censorship, and Burmese-language primary content.
Evaluator notes
Myanmar receives a tier-F assessment reflecting near-total collapse of public reservoir data infrastructure compounded by political crisis. Data transparency was already poor before the February 2021 military coup: no reservoir storage portal existed, hydropower operators did not publish operational data, and irrigation statistics were confined to periodic aggregate reports. Since 2021, the situation has deteriorated sharply. Key government websites (MOEP, MOALI irrigation department) are offline or returning errors. Civil Disobedience Movement participation among government staff has gutted institutional capacity. Active armed conflict in Kayah State (Lawpita/Baluchaung sites) and near the Shweli cascade in Shan State has made on-site monitoring impossible. Myanmar's 2025 Cyber Security Law and deployment of Deep Packet Inspection systems to block VPNs now structurally hinder any international access to government digital services. Myanmar is not an MRC member, so it benefits from none of the Mekong Commission's river monitoring obligations. Its largest hydropower assets are Chinese-built and operated under opaque PPAs: Shweli I is remotely controlled from Yunnan province, and its reservoir storage data has never been published. The only functioning hydrological data stream — DMH's daily river-gauge forecasts — covers flood early warning, not reservoir operations. Independent monitoring by satellite (Mekong Dam Monitor, GRACE) provides coarse-resolution anomalies at the basin scale but no facility-level storage data. This score should not be interpreted as indicating Myanmar lacks reservoirs of hydrological significance — the country has some of Southeast Asia's most consequential hydropower and irrigation infrastructure. The score reflects exclusively the absence of public, machine-readable, systematically maintained data about their storage levels.
Evaluated by Jaime Delgado · 2026-09-15 · Methodology v1.3.0