Río Porce
| Río Porce | ||
 Río Porce, 800 m below the junction of the Río Medellín and Río Grande |
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| Data | ||
| location |
 Colombia
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| River system | Río Magdalena | |
| Drain over | Río Nechí → Río Cauca → Río Magdalena → Caribbean Sea | |
| Confluence of |
Río Medellín and Río Grande 6 ° 33 ′ 14 ″ N , 75 ° 12 ′ 33 ″ W. |
|
| Source height | 1052 m | |
| muzzle |
Río Nechí coordinates: 7 ° 27 ′ 0 ″ N , 74 ° 54 ′ 27 ″ W 7 ° 27 ′ 0 ″ N , 74 ° 54 ′ 27 ″ W. |
|
| Mouth height | 74 m | |
| Height difference | 978 m | |
| Bottom slope | 7 ‰ | |
| length | 140 km | |
| Catchment area | approx. 5200 km² | |
| Drainage at the Puente Gabino gauge |
MQ |
68 m³ / s |
| Left tributaries | Guadalupe River | |
| Right tributaries | Río Riachón, Río Mata, Río Caná | |
| Reservoirs flowed through | Porce II , Porce III | |
 Porce II dam |
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The Río Porce is a 140 km long river in north central Colombia , in the Department of Antioquia . It is the most important tributary of the Río Nechí , into which it flows on the right.
River course
The Río Porce arises at the confluence of the Río Medellín and Río Grande near Puente Gabino , 50 km northeast of the city of Medellín . The river flows through the Central Cordillera in a predominantly north-northeast direction and flows into the Río Nechí 6 km southeast of the city of Zaragoza . It has a height difference of 978 m on its course. The dams Porce II (at river kilometer 94) and Porce III (at river kilometer 75) lie on the course of the river . Above the Porce III reservoir, at river kilometer 88, the Río Guadalupe meets the Río Porce from the left. Río Riachón , Río Mata and Río Caná are notable tributaries from the right, which flow into the Río Porce at river kilometers 32, 22 and 8. The small town of Amalfi is 6 km east of the middle reaches.
Hydrology and catchment area
The Río Porce drains an area of an estimated 5200 km². The mean discharge of the Río Porce at Puente Gabino is 68 m³ / s.
Water quality
The water quality of the Río Porce is considered to be poor. Industrial wastewater from the Medellín metropolitan area enters the river via the Medellín River.
