Representative
Projects
- Sogamoso
- Andaquí
- Bucaramanga
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Sogamoso
Studies and investigations for the design of the dam,
appurtenant works and related equipment for the Sogamoso Hydroelectric
Project.
General:
- Installed
capacity:
1,035 MW.
- Reservoir
volume:
4,800 Mm³.
- Source
of water for the project: Sogamoso River.
Civil works:
Dam:
- Heigth:
190 m.
- Type:
Concrete face gravel and rock fill dam.
- Crest:
330 masl; 345-m long and 9-m wide crest.
Diversion
Works:
- Upstream
cofferdam: Roller compacted concrete; 53 m high above the
riverbed foundation rock.
- Tunnels:
Two. Curved-wall horseshoe section, 9.5 m net diameter; 840 m and
879 m long, respectively, concrete lined.
- Slope
protection: downstream of the dam, RCC slab to be constructed
simultaneously with the fills to serve as a control structure in the
event the river overpasses the dam during the first year of dam construction.
Spillway:
- Location:
Left abutment of the dam.
- Component:
72 m wide, four 15 x 20 m radial gates.
- Tailrace
channel:
354 m long by 72 m wide.
- Maximum
discharge:
17,100 m³/s
Low-level
outlet:
-
This project component consists of a concrete structure housing two
pairs of floodgates.
Power
generation works:
Underground powerhouse:
- Length:
163.1 m.
- Width:
24.7 m.
- Height:
45.7 m.
- Equipment:
4 Francis Turbines.
Intake:
- Inclined
structure, located on the right abutment, composed of four submerged
structures conveying 800 m³/s through four 6.1-m diameter, 270-m
long headrace tunnels to the underground powerhouse.
Tailrace
tunnel:
- Turbine
discharge is initially conveyed through a 46-m long horseshoe tunnel,
14.8 m high by 12 m wide, followed by two horseshoe tunnels 510 m
long and 10.45 m by 8.5 m section.
Access
tunnel:
- Access
to the underground powerhouse is anticipated through a 370-m long
two-way traffic tunnel.
Social
component:
The Environmental
Impact Study was prepared for the Sogamoso Hydroelectric Project. It
Included preparation of the social and environmental baseline, assessment,
description and prioritization of impacts and design of the Environmental
Management Plan. The studies included mainly the following aspects:
- Social
diagnosis of the local population affected by the project. Fieldwork:
interviews and direct observation. Design and development of consultation
workshops with the community and application of a socioeconomic and
land census.
- Design
of social management programs; amongst these programs were the resettlement
of the population and the information and compromise with the community
programs.
Client:
ISAGEN S.A. and Electrificadora de Santander.
Location:
Girón, Betulia, Zapatoca, Los Santos, San Vicente de Chucurí
and Barrancabermeja, Administrative Department of Santander.
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