Tanzania Waterways: Hydrological Vector Data with Swahili Toponyms

Tanzania's hydrological network is mapped through OpenStreetMap features including rivers, wetlands, and bays, exported by the Humanitarian OpenStreetMap Team (HOT). The collection provides vector data updated as of March 2026 across multiple formats like SHP, KML, and GeoJSON. It captures both natural water bodies and man-made waterway infrastructure.

Use Cases

• Hydrological modeling using the waterway and natural tags to distinguish between rivers and wetlands
• Infrastructure assessment by identifying obstructed paths via the blockage and tunnel columns
• Local language map production utilizing the name:sw and name:en fields

Strengths

• Available in five geospatial formats including GARMIN IMG and GeoPackage
• Includes localized Swahili toponyms via the name:sw attribute
• Captures specific hydrological infrastructure like tunnels and blockages

Limitations

• Crowdsourced nature may result in uneven geographic coverage between urban and remote regions
• Physical dimension fields like width and depth are often unpopulated

Provenance

Source

OpenStreetMap via Humanitarian OpenStreetMap Team (HOT)

Collection Method

Crowdsourced geospatial contributions

Freshness

Last updated March 2026.

Geography

Tanzania