rivers on the list1,415 RiversTotal registered gazetteer streams
of river, their official lengths added up35,706 kmCombined recorded waterway length
can be matched by name to any open map (OpenStreetMap, Wikidata, GeoNames)378 RiversLocated on OSM or Wikidata
cannot: on the government's list, but on no open map by name1,037 RiversNo open vector geometry traced
1,415
rivers on the list
35,706 km
of river, their official lengths added up[Ministry of Water Resources]
378
can be matched by name to any open map (OpenStreetMap, Wikidata, GeoNames)[Ministry of Water Resources]
1,037
cannot: on the government's list, but on no open map by name

No.RiverDistrictLengthFrom → toOpen map

How the list was rebuilt

The PDF was made from Excel with the Nikosh font, and its text layer gives 17 glyphs the wrong letters (the i-kar comes out as ল, the e-kar as দ, and গ, জ, দ and শ as ে). The embedded font's own character map gives the right letter for each, and 16 more joined letters were identified from their words and checked against the printed page. We then put the vowel signs Bangla draws before a consonant back after it, and cut the cells along the table's own lines.

The result was checked three ways: every division is one of the eight, every district is one of the 64 (apart from four spelling variants in the source itself), and 24 rows we had read by eye from the page images match word for word. Two typos are in the original and are kept as printed. Names, districts and lengths are the government's; "open map" is our search, by name and district, in OpenStreetMap, Wikidata and GeoNames.

Delta River Atlas

Investigate missing rivers and field dossiers

Explore why 1,037 gazetted rivers lack open cartographic lines, and inspect ground-level evidence on dying and grabbed waterways.