H1 2026 Evaluation
Eswatini Reservoir Transparency
F26Opaque — Ranked #91 out of 167 countries
weight 30%
weight 20%
weight 15%
weight 13%
weight 10%
weight 8%
weight 5%
Primary source evaluated
Dimension breakdown
Data Availability
20% of total score
Two complementary sources publish fill percentages without download or time-stamp. EWSC homepage displays current fill % for four dams (Luphohlo, Hawane, Maguga, Mnjoli) with no date shown, no context, and no archive. South Africa's DWS weekly system independently covers Maguga Dam (332 Mm³) as part of its transboundary KOBWA monitoring and publishes a percentage weekly. Neither source exposes raw volume data, both omit the majority of Eswatini's nine major dams (total ~740 Mm³), and neither is an official Eswatini government portal. The MNRE/DWA published a single dam-status snapshot in November 2022 on its gov.sz page, but no bulletin series exists.
Technical Accessibility
15% of total score
No REST API, no open-format downloads (CSV, JSON, XML) and no bulk data access exist from any Eswatini source. EWSC renders fill percentages as HTML widget with no machine-readable endpoint. South Africa's DWS weekly PDF covers only Maguga. KOBWA publishes river-flow gauging data but not dam storage figures. No registration is required to view the EWSC widget, but the data cannot be consumed programmatically.
Coverage
30% of total score
Eswatini has nine major dams with a total storage capacity of approximately 740 Mm³. EWSC displays four of them (Luphohlo, Hawane, Maguga, Mnjoli), and South Africa's DWS independently covers Maguga (332 Mm³) via the shared KOBWA monitoring. Lubovane Dam (155 Mm³, SWADE-managed for LUSIP irrigation) and smaller irrigation/hydro dams are entirely absent from any public source. Score lowered from 30 to 25 to apply a conservative discount: the data shown on EWSC is bare percentages without volume/timestamp/context, and the smaller dams represent meaningful national storage that is fully invisible to the public.
Historical Depth
13% of total score
No machine-readable historical archive is publicly available from any Eswatini authority. EWSC shows only a current snapshot with no date attached and no archive section. The DWS weekly system for Maguga provides one year of weekly comparison (current week vs. same week last year) but no downloadable multi-year series. MNRE/DWA mentions a hydrological database maintained by its Hydrology Section but this is not accessible online. News articles (e.g., Eswatini Daily News, Eswatini Positive News) document point-in-time values from mid-2024 onward but represent journalism, not systematic data release.
Update Frequency
10% of total score
Maguga Dam data is refreshed weekly via South Africa's DWS system (last confirmed 2026-05-25), making it the only Eswatini reservoir with a documented weekly cadence. The EWSC homepage widget appears to reflect near-current levels (values consistent with seasonal news reports) but carries no timestamp, no stated update schedule, and no SLA. The MNRE issues ad hoc press releases to local media during notable events (drought, overflow) but there is no regular official bulletin. Weekly coverage of a single dam and undated coverage of three others yields a below-average but not negligible score.
Methodological Transparency
8% of total score
No published methodology document describes how storage percentages are calculated, what reference capacity figures are used, or what instrumentation is deployed at each dam. KOBWA's OTT datalogger network for river gauging at Maguga and Driekoppies is documented by the equipment supplier but not by KOBWA itself on its public site. The MNRE Hydrology Section page names 36 monitoring stations and two hydrologists but provides no technical protocol. Neither EWSC nor MNRE has published measurement standards, uncertainty ranges, or sensor calibration procedures.
Language and Usability
5% of total score
English is one of Eswatini's two official languages (alongside siSwati), and all government and utility websites (ewsc.co.sz, gov.sz, kobwa.co.za) operate exclusively in English. Every dam-level data source, press release, and institutional page found during research is fully in English with no language barrier for international users. The score is capped below the maximum because the data is sparse rather than linguistically inaccessible.
Evaluator notes
Eswatini occupies an unusual position among small Southern African states: it has functioning monitoring infrastructure and at least two channels that surface fill percentages publicly, yet neither meets basic transparency standards for open data. The EWSC homepage widget is the most accessible national source — no login required, English, four dams — but it lacks timestamps, volume figures, historical series, and any machine-readable format. Maguga Dam (332 Mm³, ~45% of national capacity), jointly operated by KOBWA with South Africa, benefits from South Africa's robust DWS weekly reporting system and appears in the ProvinceWeek portal with a one-year comparison, making it by far the best-documented Eswatini reservoir. The remaining major dams — Lubovane (155 Mm³, SWADE/irrigation), and smaller hydro/irrigation facilities — have no public online presence whatsoever. The Department of Water Affairs maintains a 36-station hydrological monitoring network and an internal database, and the Dam Operations section is mandated for flood and drought forecasting, but this data does not reach the public web. The gap between operational capacity and public disclosure is the defining characteristic of Eswatini's transparency profile. MNRE communicates dam levels reactively through press releases to local media (Eswatini Daily News, Times of Swaziland), not through a structured bulletin. No API, no CSV, no open-data portal, and no hydrological yearbook have been identified. The RTI composite for Eswatini is pulled up modestly by English accessibility and by the existence of the EWSC widget and the DWS/KOBWA Maguga feed, and pulled down sharply by the absence of historical data, machine-readable formats, methodology documentation, and coverage of the majority of national storage capacity. A structured national water information system, even a basic monthly PDF bulletin from MNRE covering all nine major dams, would substantially improve the score.
Evaluated by Jaime Delgado · 2026-09-15 · Methodology v1.3.0