H1 2026 Evaluation
Chad Reservoir Transparency
F0Opaque — Ranked #163 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
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: Chad has no significant national dams or managed reservoirs. The Lagdo Dam on the Bénoué River is located in Cameroon (upstream), not Chad. Lake Chad itself — a transboundary water body — is monitored by the Lake Chad Basin Commission (LCBC), which provides some data through its Lake Information System (LIS). No Chadian national entity publishes reservoir storage data because no such reservoirs exist domestically.
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: The LCBC LIS platform provides access to some spatial and non-spatial IWRM data, including streamflow from 3 hydrometric stations and rainfall from 11 stations. This is a transboundary body, not a national Chadian data portal. The SNE (national electricity utility) and water ministries publish no publicly accessible hydrological data.
Coverage
30% of total score
Capacity-weighted (v1.3.0): 0/0 Mm³ — structural N/A. Chad has no major dams or impoundments above the RTI capacity threshold; coverage scored 0 by convention for absence of a measurable denominator. Prior justification (preserved for context): Methodology denominator counts reservoirs with capacity >10 hm³. Chad has zero qualifying national reservoirs. Lagdo Dam (which affects southern Chad) is located in Cameroon and not attributable to Chad's denominator. Lake Chad is a natural transboundary lake, not a constructed reservoir. With no qualifying reservoirs, coverage is structurally zero. LCBC's Lake Information System provides regional context but does not constitute Chadian sovereign reservoir-coverage.
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: The LCBC and academic sources provide Lake Chad water level records extending back decades, including data supporting studies on the lake's shrinkage from approximately 25,000 km² in the 1960s to current levels. This historical depth applies to Lake Chad, not to any Chadian national reservoir.
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: LCBC publishes Annual Monitoring Reports (AMR) and State of the Basin reports, but these are not real-time or monthly data releases. Lake Chad satellite-derived extent data is available from global platforms but not through any Chadian national system.
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: LCBC and IAEA documentation of Lake Chad basin monitoring methodology is partially available through published reports and scientific literature. The LCBC observational network methodology is described in transboundary assessment documents. National Chadian measurement methodology does not exist for reservoirs.
Language and Usability
5% of total score
LCBC documentation is available in both French and English. Chad's official languages are French and Arabic; French-language documentation meets the needs of regional users. However, there is no dedicated public data interface in Arabic for Chadian users.
Evaluator notes
Chad receives a near-zero RTI score primarily because it has no national managed reservoir infrastructure. The country is almost entirely dependent on the Lake Chad basin and the Logone/Chari river systems for surface water. The Lagdo Dam, which significantly affects downstream flooding in southern Chad, is operated by Cameroon — not Chad — and Cameroon's data on Lagdo releases is not systematically shared with Chadian authorities or the public. The LCBC Lake Information System represents the best available transparency mechanism for the region's water systems, but it is a regional body with limited national-level data granularity. Chad's Sahel geography and the continuing Boko Haram security crisis in the Lake Chad basin region further constrain any domestic capacity for water data infrastructure development. The country ranks among the lowest globally on water governance capacity indices.
Evaluated by Jaime Delgado · 2026-09-15 · Methodology v1.3.0