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: : Panama Hydrographic Basins : :
Hydrographic Basins in Panama

With the execution of the Hydrometeorological Centralamerican Project (PHCA, 1967-1972) under the coordination of the Regional Comitee of Hydraulic Resources (CRRH) and with the sponsor of the World Meteorological Organization (WMO), supported by the United Nations Program for the Development (PNUD) was agreed to unify criteria for the trace an numbering of the main hydrographic basins in all the countries in the Central American Isthmus (Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua & Panama).

The project was developed with the purpose of assigning a nomenclature to the hydrometeorological stations, and to ease that way the processing and sharing of the information. Besides, it layed the foundations for the strengthening of the meteorological and hydrological stations that help determine the disponibility, in quantity and quality, of the surface hydric resources.

Back then, was agreed that the Atlantic slope basins were assigned odd numbers starting by basin N° 1 in Guatemala, to the 121 in Panama. In the Pacific, even numberss starting from 2 to 164.

As a result of the Central American Hydrometeorological Project, the continental and insular territory of the Republic of Panama, with an area of 75,524 Km², has been divided into 52 hydrographic basins. From these basins, 18 are in the Caribbean slope (30% of the national territory) and correspond to odd numbers starting at 87 through 121; 34 belong to the Pacific Ocean slope (70% of the national territory), with odd numbers from 100 to 166. It can be noticed that the basins areas in the Republic of Panama vary from 133.5 Km² in the Platanal river (basin N° 107) and 4,984 Km² in the Bayano River (Basin N° 148).

PANAMA HYDROGRAPHIC BASINS
Basin N° River Name Basin Total Area (Km2) River Length (Km) Basin's Main River
87 Sixaola River* 509.4 146.0 Sixaola
89 Rivers between Sixaola and Changuinola 222.5 37.3 San San
91 Changuinola River 3202.0 110.0 Changuinola
93 Rivers betwen Changuinola and Cricamola 2121.0 51.9 Guariviara
95 Cricamola River and between Cricamola and Calovébora 2364.0 62.0 Cricamola
97 Calovébora River 485.0 39.0 Calovébora
99 Rivers between Calovébora and Veraguas 402.2 44.8 Concepción
100 Coto River and Vecinos * 560.0 52.0 Palo Blanco
101 Veraguas River 322.8 46.0 Veraguas
102 Chiriquí Viejo River 1376.0 161.0 Chiriquí Viejo
103 Belén River and between Belén R. and Coclé del Norte R. 817.0 55.6 Belén River
104 Escárrea River 373.0 81.0 Escárrea
105 Coclé del Norte River 1710.0 75.0 Coclé del Norte
106 Chico River 593.3 69.0 Chico
107 Rivers between Coclé del Norte and Miguel de la Borda 133.5 14.2 Platanal
108 Chiriquí River 1905.0 130.0 Chiriquí
109 Miguel de la Borda River 640.0 59.5 Miguel de la Borda
110 River Fonseca and between Chiriquí R. and San Juan River 1661.0 90.0 Fonseca
111 Indio River 564.4 92.0 Indio
112 Rivers between el Fonseca and el Tabasará 1168.0 67.0 San Félix
113 Rivers between el Indio and el Chagres 421.4 36.9 Lagarto
114 Tabasará River 1289.0 132.0 Tabasará
115 Chagres River 3338.0 125.0 Chagres
116 Rivers between el Tabasará and el San Pablo 1684.0 56.5 Caté
117 Rivers between el Chagres and Mandinga 1122.0 34.1 Cuango
118 San Pablo River 2453.0 148.0 San Pablo
119 Mandinga River 337.0 41.3 Mandinga
120 San Pedro River 996.0 79.0 San Pedro
121 Rivers between el Mandinga and Armila 2238.0 26.5 Cartí
122 Rivers between el San Pedro and el Tonosí 2467.0 40.4 Quebro River
124 Tonosí River 716.8 91.0 Tonosí
126 Rivers between el Tonosí and La Villa 2170.0 45.0 Guararé
128 La Villa River 1284.3 117.0 La Villa
130 Parita River 602.6 70.0 Parita
132 Santa María River 3326.0 168.0 Santa María
134 Grande River 2493.0 94.0 Grande River
136 Antón River 291.0 53.0 Antón River
138 Rivers between el Antón and el Caimito 1476.0 36.1 Chame
140 Caimito River 453.0 72.0 Caimito
142 Rivers between el Caimito and el Juan Díaz 383.0 6.0 Matasnillo
144 River Juan Díaz and between River Juan Díaz and Pacora 322.0 22.5 Juan Díaz
146 Pacora River 388.0 48.0 Pacora
148 Bayano River 4984.0 215.0 Bayano
150 Rivers between el Bayano and el Sta. Bárbara 1270.0 22.4 Chimán
152 River Sta. Bárbara and between Chucunaque 1796.0 78.1 Sabanas
154 Chucunaque River 4937.0 215.0 Chucunaque
156 Tuira River 3017.0 127.0 Tuira
158 Tucutí River 1835.0 98.0 Tucutí
160 Rivers between el Tucutí and el Sambú 1464.0 23.9 Marea
162 Sambú River 1525.0 80.0 Sambú
164 Rivers between el Sambú and el Juradó 1158.0 46.7 Jaqué
166 Jurado River * 91.2 63.0 Juradó
Notes:     *     International Basins.
The areas in international basins only belong to panamanian territory.
The basin areas are measured until the moth of the main river.
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