INFORMATION ON THE LAHMEYER INTERNATIONAL GROUP, NO. 49 / JANUARY 2005

BOSNIA-HERCEGOVINA: ICELAND: 690 MW HYDROPOWER PLANT 400 KV TRANSMISSION LINE KÁRAHNJÚKAR

YEMEN: SUDAN: 70 MW DIESEL POWER PLANT AL-MANSURA BASIC SURVEYING FOR MEROWE DAM PROJECT ONTENTS p. 3 Albania: The Reform of the Power Sector

C p. 4 Yemen: 70 MW Diesel Power Plant Al-Mansura

p. 4 Kingdom of Saudi Arabia: 2400 MW Combined Cycle Power and Sea Water Desalination Plant in Jubail

p. 5 Pakistan: Feasibility Study for Fauji Korangi CCPP

p. 5 Bosnia-Hercegovina: 400 kV Transmission Line

p. 6 Germany: New 110/15 kV Substation Dessau-Alten

p. 7 Georgia: SCADA/EMS and Communication Systems for High-voltage Transmission Grid

p. 7 Iran: 30 MW Wind Park in Manjil

p. 8 Korea: Consulting Services for Business Development in the Photovoltaic Industry

p. 9 Iceland: 690 MW Kárahnjúkar Hydroelectric Power Plant

p. 10 Burkina Faso: Celebration on the Occasion of "Availability of Water from the Ziga Reservoir" in Ouagadougou

p. 11 Germany: Preliminary Design for the New Pumped Storage Plant Waldeck I

p. 12 Jordan: Mujib Dam

p. 13 Mozambique: Strategic Sanitation Plans for Seven Municipalities

p. 14 Sudan: Basic Surveying for Merowe Dam Project

p. 15 Croatia: Modernization of Railway Corridor Vc

p. 15 Greece: Stavros Depot of Athens Metro

p. 16 Venezuela: Metro Los Teques

p. 17 Greece: SYGROU - FIX Transfer Station in Athens

p. 18 Germany: Modernization of the Auxiliary Klingenberg Dam

p. 19 Germany: New Development of the ‘Berliner Platz’ in the City of Gießen

COVER MASTHEAD

Mujib Dam, Jordan Publisher: Lahmeyer International GmbH, The Mujib Dam is located near the most Bad Vilbel, Germany ancient road in the world, which has been Editorial Office: Jutta Kaufmann, Business Development continuously in use up to now, and which Design and Lithography: SaarRepro, Ottweiler, Germany was used in past times by Abraham and Print: Ottweiler Druckerei und Verlag GmbH, Ottweiler, Germany Lawrence of Arabia. The Wadi Mujib is also called Jordan’s Grand Canyon. It cuts Photographic Evidence: Lahmeyer International’s Photo Archive through the Jordanian highlands and, com- ing from the east, it flows into the Dead © Lahmeyer International GmbH 01/05 Sea, the world’s deepest lake.

2 ALBANIA The Reform of the Power Sector NERGY E Electricity generation groups, under consideration of by hydropower plants financial and social aspects, in a at the river Drin cost-covering level, • to prepare the organisation of the power industry in Albania not only for the commercialisa- tion and privatisation but also for the integration into the UCTE1 zone and the Southeast European Electrical System.

Based on this study, the Govern- ment of Albania worked out a strat- egy for the modernisation of the energy sector. In 2004, the first measures for the unbundling of the three functions (generation, trans- mission and distribution) were intro- duced at KESH.

For further support, KESH has engaged in November 2004 Lahmeyer International with another project financed by the World Bank. The objective of the project is to state and compare the different Since almost one and a half reasons, but also because the options for: decade, the engineers and consult- capacities of the transmission sys- ants of Lahmeyer International tem were not sufficient, only one •the organisation of the Albanian realise the technical and economic part of the electricity gap could be electricity generation units, restructuring of national utilities in filled through electricity imports. The •the organisation of the Albanian several transition economies. population and the economy suf- electricity distribution divisions, fered from massive electricity out- • the privatisation of the genera- A peculiarity is presented in Albania. ages. tion and distribution functions, Almost 99 % of the electricity gen- • the introduction of competition. eration is provided by domestic Very low tariffs and high technical hydropower. At the beginning of the and non technical losses of 40 to The project shall be finished in July nineties, the country exported 20 % 50 % in total were essential reasons 2005. of its power generation. for the high increase in electricity consumption. KESH could not It is the start for the successful In the nineties our power plant and afford the costs of the power privatisation of KESH that should be electrical engineers advised KESH, imports with own resources. The finished, according to the plans of the Albanian Power Corporation, on government felt obligated to pay the Albanian government, in the the modernisation of the largest direct subventions at KESH. year 2007. hydropower plant (the Drin River cascade), the additional extension Due to the energy crisis in Albania, Hans-Joachim Kießling, with thermal power plants and the the projects for Lahmeyer Rosa Tarragó construction of a new hydropower International in the country also plant. changed. In 2002 our engineers and economists participated in a At the end of the nineties the bal- sectoral study. They recommended, ance supply situation in the among others: Albanian power sector fundamental- ly changed. The steadily increasing • to slow down the high increase electricity demand (about 10 % per of the electricity consumption, year from 1992) and unfavourable • to reduce the technical and non hydrological conditions followed to technical losses of service electricity shortages in the country. through the improvement of the At the beginning of this century, the network capacities and adminis- domestic power plants could only trative measures, cover about 50 % of the national • to bring step-by-step the elec- 1 UCTE – Union for the Coordination of electricity consumption. For financial tricity tariffs for all consumption Transmission in Europe

3 YEMEN 70 MW Diesel Power Plant Al-Mansura NERGY E The Public Electricity Corpora- of higher capacities – generate convertible to dual fuel / natural gas tion (PEC), the Yemeni state-owned intermittent only due to outages and operation in the future. utility under the Ministry of maintenance, resulting in an overall Electricity, operates approx. 50 availability of around 60 %. The The project is financed by a loan thermal power plants, out of which Ministry of Electricity estimates the from the Saudi Fund for Develop- three are conventional oil-fired demand on new power plants until ment and by funds from the Yemen steam turbine power plants. All 2020 at 1,650 MW. Government. Lahmeyer International other plants are diesel engine driven plants, 40 of them operated in iso- The 70 MW Diesel Power Plant lated grids. Al-Mansura is being built on the south coast of the country in Aden. The steam turbines in Ras It will comprise seven medium Kanastib at Al-Hodeidah, in Al- speed diesel generator sets of simi- Mukha and in Al-Hiswa at Aden lar type incl. auxiliary equipment, have a total capacity of 450 MW. waste heat recovery steam system, The diesel power plants in the net- electrical plant installation with work compound have a combined 33 kV GIS switch gear, instrumenta- capacity in excess of 200 MW, while tion and control systems, water the diesel power plants operating in treatment as well as interim fuel

Aden site inspection in Mai 2004

was selected among ten short-listed consulting firms under Quality- and Cost-Based Selection (QCBS) to provide the consulting services for this project.

The consulting services during the implementation period of 18 months comprise the project man- agement, design review and The future location of the 70 MW diesel approval, witness of factory tests, power plant Al- supervision of construction including Mansura near Aden commissioning, testing and handing over, as well as assistance to the isolated grids have a capacity of storage capacities, in addition to the client during the 12 months defects 235 MW. However, the contribution pipeline connection. The plant is liability period. of the grid connected diesel plants designed to operate initially on to the power generation is consider- heavy fuel oil as the main fuel and Harald Neff ably lower. Numerous plants – even light fuel oil as backup, and to be

KINGDOM OF SAUDI ARABIA 2400 MW Combined Cycle Power and Sea Water Desalination Plant in Jubail

In July 2004, Lahmeyer The dual-purpose installation Bid submission from internation- International, leading an advisory shall provide power and desalinated al pre-qualified developers is consortium, has been commissioned water to the customers in Jubail expected in February 2005. by the Power & Water Utility City at the Saudi Arabian East Company for Jubail and Yanbu Coast, one of the most important Dr. Uwe Dammel (Marafiq) as Owner’s Engineer for the industrial areas in Saudi Arabia. The so called Independent Water & IWPP comprises a 2400 MW power Power Project (IWPP) in Jubail, being station and a sea water desalination one of the first and biggest privately plant of 300,000 m3 per day. funded projects in Saudi Arabia.

4 PAKISTAN Feasibility Study for Fauji Korangi CCPP NERGY E Supply Agreement (GSA), other related agreements, and liaison with the concerned local and interna- tional agencies for facilitating and expediting progress of private sec- tor power projects.

The LI-NESPAK consortium will pro- vide the following services:

• Review of existing pre-feasibility study report • Data collection of the selected site • Review of basic project parame- ters and conditions • Determination of general plant requirements •Transportation study •Identification of optimized tech- nical plant concept/configuration The site for the future Combined Cycle Power Plant Fauji Korangi nearby the city of Karachi •Preparation of plant conceptual design and implementation con- cept Fauji Foundation has been declared sector entity. Its welfare operations • Environmental impact assess- as pre-qualified by Private Power are financed through its industrial ment (EIA) Infrastructure Board (PPIB), Govern- and commercial projects. It has 9 • Review of existing project agree- ment of Pakistan and intends to million beneficiaries and has welfare ments setting up a 150 MW dual-fired operation in education, health and • Estimation of project cost and combined cycle power plant (CCPP) vocational training areas. It spends financing plan at Korangi nearby Karachi under an 80 % of its earnings on welfare. •Financial analysis and tariff cal- IPP scheme. culations The PPIB is the contract point to • Risk analysis The consortium Lahmeyer private sector investors concerning •Identification of required permits International GmbH (LI) – National establishing Independent Power and approvals Engineering Services Pakistan (Pvt.) Producer (IPP) projects and related •Preparation of feasibility study Limited (NESPAK) has been award- infrastructure in Pakistan, including report ed to undertake a feasibility study the negotiation of the for this new CCPP. LI is consortium Implementation Agreement (IA). The successful co-operation leader. PPIB also provides support to the between LI and NESPAK has been power purchaser and fuel supplier proven in several former projects. Fauji Foundation is Pakistan’s largest while negotiating the Power welfare cum industrial organization Purchase Agreement (PPA), Fuel Bernhard Paulus, and a fully self-supported private Supply Agreement (FSA) / Gas Michael Dürr

BOSNIA-HERCEGOVINA 400 kV Transmission Line

Prior to the Balkan War, the The transmission network com- the war. The energy supply is now entire installed power generation prised a total length of 5,400 km, being reconstructed in three steps: capacity in Bosnia-Hercegovina was and the local distribution networks 13 Gigawatt (GW), while the maxi- 92,000 km. The transmission back- •Power I, Emergency Programme mum demand was 11 GW. 40 % of bone consisted of a 400 kV network for Energy Supply the generation was by hydropower with 8 substations, which was inter- • Power II, Rehabilitation of stations, and 60 % by thermal connected with the transmission Energy Supply power stations. During the war, 56 systems of Croatia, Montenegro % of the installations were damaged and Serbia. 60 % of the intercon- These two steps have already or rendered unusable. nections were also damaged during been completed.

5 In June 2002, Lahmeyer The services of LI for eleven International (LI) was contracted by transmission lines with different

NERGY the World Bank, to provide consul- designs cover the following: tancy services for the third step E (Power III). This project is being •reconstruction and repair of war financed by a credit from the World damages, Bank, and comprises the rehabilita- •landmine clearing in the trans- tion of the damaged 110/220 and mission routes, the access 400 kV transmission network, and roads, and clarification of rights rehabilitation of the hydropower sta- of way, tion Rama. •reconstruction of existing tow- ers, and erection of new towers For these works, LI establishes (including foundations), the technical specifications and bid- •removal and replacement of ding documents for an international damaged conductors including competitive bidding (ICB). The local all components like insulator power utilities Elektroprivreda strings and fittings, Bosne i Hercegovine (EP-BiH), •installation of new optical cables Elektroprivreda Hrvatske Zadjednice for the damaged 400 kV trans- Herceg-Bosne (EP-HZHB) and mission network, and Elektroprivreda Republike Srpske •the clearing of tower locations. (EP-RS) are being assisted during and its metropolis Sarajevo, Mostar the bidding stage, in bid evaluation When the works will be com- and Banja Luka as well as the inter- and during contract negotiations, as pleted by the end of April 2005, a connection with the UCTE Grid. well as the future construction comprehensive supply of power will supervision. be secured for Bosnia-Hercegovina Joachim Lezim

GERMANY New 110/15 kV Substation Dessau-Alten

Model of the new 110/15 kV Substation Dessau-Alten, anticipated to be in service in 2006

In spring 2004, Dessauer interconnection to the load control •Arc-suppression coil Stromversorgung GmbH (DSV) centre of the Dessauer Stromver- • Auxiliary systems entrusted Lahmeyer International (LI) sorgung (DSV). • Electrical protection and control with the design, engineering, ten- systems dering and site supervision of the The main components of the • Remote substation control sys- 110/15 kV Substation Dessau-Alten. substation are as follows: tem •Switchgear control building The scope of services contains •Implementation of four 110 kV amongst others the design for a transmission lines The new installations will be 110 kV air insulated switchgear • 110 kV AIS outdoor switchyard, erected and installed on the existing (AIS), one 15 kV SF6 gas insulated nine bays premises, close to the old outdoor switchgear (GIS), double busbar • 15 kV SF6 insulated indoor switchyard. type which will be situated in a sep- switchgear, 31 feeders arate switchgear building, electrical • 110/15 kV transformers, The project execution will be protection and control systems, 2 x 40 MVA carried out mainly by the LI office in remote control implementation to • 110/15 kV transformer, Dresden, Germany. Up to now the the existing SCADA systems and 1 x 31,5 MVA following services were performed:

6 • Conceptual design • Design approval of contractors under all circumstances during the •Preparation of EU-wide tender design switch-over and interconnection

documents • Site supervision, including time activities from the existing switch- NERGY •Tender evaluation scheduling and cost controlling yard to the new switchyard. This E • Support during tender negotia- • Supervision of commissioning task requires a close and duly co- tions activities ordination of all parties concerned, • Performing of acceptance tests since the Substation Dessau-Alten LI has entrusted a local engineer- • Review and approval of the “as- is the central grid station between ing office in Dresden for the civil built” documentation Dessau city and the nation-wide design works. power supplier. Special emphasis has to be paid The following services will be to the co-ordination of the commis- Klaus-Uwe Huhnke performed by LI during the project sioning activities. Outages of the execution: power supply must be avoided

GEORGIA SCADA/EMS and Communication Systems for High-voltage Transmission Grid

Lahmeyer International (LI) was supervision of installations and The network control system will assigned by Georgian State implementation of the systems as implement SCADA functions for Electrosystem (GSE) in June 2004 well as the acceptance tests. The supervision and control of 39 sub- with the preparation of tender docu- tender documents will be complet- stations and power plants as well as ments for SCADA/EMS systems ed after reviewing and adaptation of energy management functions and and communication installations for the preliminary design studies. network application modules. the transmission grid of GSE with 500 kV, 220 kV and 110 kV substa- The project serves in continuation In addition to new radio links tions as well as the connection of of the commercialisation of GSE with- and new own fibre optic cable links, metering installations for monitoring in the framework of an extensive existing transmission capacities on of energy exchange between GSE reform programme of Georgia’s ener- fibre optic systems of other and its partners. gy sector. The objective is the unbun- providers will also be used for com- dling of generation, transmission and munication. LI will also participate in con- distribution in order to develop a lib- tracting with suppliers, in project eralised energy market. Financing is Walter Buckow, management and controlling, in shared by the World Bank and other Dr. Siegmar Leutloff quality assurance of deliveries, the international organisations.

IRAN 30 MW Wind Park in Manjil

Lahmeyer International together wind speeds of about 6 m/sec (at those months which have powerful with the Iranian engineering compa- 40 m measuring height above solar radiation is observed. The long ny Moshanir was assigned to devel- ground) in winter and by superb drawn-out valley in north-south op a technical and a financial feasi- wind conditions especially in sum- direction and the sudden contrac- bility study for 30 MW wind park mer. The strong north-wind in the tion near the city Manjil, additionally located next to Manjil in the months from May to September leads to a jet-effect with exception- province of Gilan. The Japanese with an average wind speed of 14 ally high wind speeds. government is supporting this pro- m/sec (at 40 m above ground) and ject with a US Dollar 60 mill. credit. more can be explained with the During the last years, two wind local climatic and geographic cir- parks were constructed in Manjil Manjil is situated about 220 km cumstances. Through the different which presently will be extended. north-east of Teheran and 80 km distribution of temperature of the Already in 1995 a 10.1 MW park south of the Caspian Sea in the Caspian Sea and the landmasses with 300 kW and 500 kW turbines province of Gilan. The wind condi- south of the Caspian Sea, a forma- was installed with support of the tions are characterized by average tion of sea breeze especially in Global Environment Facility (GEF). In

7 an additional wind park near the focussed on the production of wind reservoir of Manjil, further turbines of energy plants.

NERGY an Iranian manufacturer were installed. The company has signed a con- E tract with the international market With the goal to achieve the leader regarding technical co-opera- added value for industrial parts in tion and technology transfer with a the country itself, the Iran initiated budget of Euro 25 mill. In close co- various activities with regard to the operation of the partners, a 660 kW wind industry. wind energy plant will be produced.

Under the umbrella of an Iranian Bert Hagenkort corporate group a company is Factory for the production of wind energy plants in Teheran

KOREA Consulting Services for Business Development in the Photovoltaic Industry

In the Republic of Korea a renewable energy law similar to the one implemented in Germany was enacted in 2004. The goal was set to increase the renewable energy share in primary energy consump- tion to 5 % by 2011, which requires an expansion of the renewable energy generating capacity by 20 % per year. This will be achieved main- ly through the utilisation of photo- voltaic (PV), wind and biomass energy systems – technologies which are supported by the law.

In Korea, at the moment, photo- voltaic systems with a total power of 2 MW are installed each year. Dr. Jeong, Dr. Yeo and representatives of RWE Schott Solar in Alzenau, Germany Thus the market is small compared to Germany, where about 250 MW of PV systems are installed every as well as of European PV compa- solar cells or in system integration. year. Nevertheless, it is expected nies. Lahmeyer International further Both strategies have permitted high that due to favourable feed-in tariffs facilitated contacts to possible busi- growth rates in relation to the world for photovoltaic generated electrici- ness partners for the Dongbu Group. market, which currently has a vol- ty, set by the Korean Renewable ume of Euro six billion. Energy Law and other financial ben- In Germany the Renewable efits, the volume of PV system Energy Law has significantly stimu- After intensive co-operation, installations per year will rapidly lated the PV market volume, which successful meetings and a study increase in Korea to about 40 MW grew over the last few years at a tour of projects and manufacturers, by 2006. rate of 30-40 % annually. In this our Korean client has the chance to strongly expanding market sector decide on the attractive options for In October 2004 the Korean prices are decreasing by more than co-operation with several European company Dongbu contracted with 5 % per year, and various new PV industry companies. Lahmeyer International for advisory companies have been established services with regard to their photo- successfully with different strategies: Furthermore, the delegation voltaic systems business develop- There are highly vertically integrated from Dongbu acquired information ment in Korea. Dongbu is a large companies with manufacturing relevant and helpful for their busi- Korean Group with business activi- activities at almost every step of the ness planning, strategy develop- ties primarily in manufacturing and value chain from silicon production ment and joint ventures. chemical production. Lahmeyer to the complete installation of a PV International conducted a study for plant. Other companies are spe- Werner Klaus Dongbu of the European PV market cialised, e.g. in the production of

8 ICELAND

690 MW Kárahnjúkar Hydroelectric Power Plant TER A W

the access tunnels to the caverns. All excavation works for the under- ground structures, with the excep- tion of the raise bored pressure shafts, are being carried out by the Drill & Blast Method. All excavation works will be completed by December 2004. Works at certain sections are currently six to eight months ahead of schedule.

The excellent progress achieved can be attributed to the high por- tion and standard of mechanised work and to the fact that, to the maximum extent possible, various phases of the work were carried out in parallel. Spray robots, provided with multiple booms, were used for applying shotcrete, generally rein- Raise Boring Machine for pressure shaft excavation forced with steel fibres. The excava- tion of the two 415 m-long pressure Iceland’s largest hydroelectric In August 2003 the contract for shafts was carried out by a Raise power plant with a total capacity of construction supervision on behalf Boring Machine and was completed 690 MW is currently under con- of the Owner for lot KAR-15 was in five months, i.e. in two and a half struction in the north-eastern part of awarded to the joint venture with months per shaft. the country, built by the national Lahmeyer International as leading Icelandic Power Company firm, in co-operation with the The first electric power genera- Landsvirkjun. The generated power Icelandic partners Hönnun, tion is scheduled for April 2007. The will be exclusively used for alumini- Almenna, VSO and Rafhönnun. Lot use of these hydropower resources um production for which a new alu- KAR-15 powerhouse area compris- for the production of aluminium is minium smelting factory is concur- es all structures from the top of the considered a valuable contribution rently under construction in the pressure shafts to the water dis- to Iceland’s economic development nearby seaport, Reyđarfjörđur. charge into the river. The and the improvement of its infra- Contractor, Fosskraft, which is a structure. The future Hálslón reservoir, with joint venture of Germany’s Hochtief, a capacity of 2100 million m3, will as sponsor, and three Icelandic Rolf-Günter Köhn, be created by a 193 m-high con- partners, is carrying out the con- Gunnar Gudmundsson crete-faced rockfill dam supported struction works. by two saddle dams. From the power intake the water will be trans- The physical conditions prevail- ferred via a 40 km-long headrace ing in this area, only about 300 km tunnel to two 415 m-high steel-lined to the south of the Arctic Circle, pressure shafts feeding six Francis demand immense efforts and untir- turbines with a capacity of 115 MW ing engagement from the people each. The electro-mechanical instal- involved. The equipment is subject lations will be accommodated in to considerable wear and tear. two caverns, which are accessible Regardless of partly adverse weath- via a tunnel approx. 1 km long. The er conditions, the progress of works generated electric power will be achieved up to now in lot KAR-15 is transmitted via a cable tunnel enormous. Underground works approx. 1 km long to an open-air commenced in October 2003 with sub-station, from where it is trans- ferred to the final consumer by a new high-voltage overhead trans- mission line, also currently under construction. After passing the tur- bines the water will be discharged into the Jökulsá i Fljótsdal River via a tailrace tunnel approx. 1.3 km long and an open-air channel. Status of powerhouse hall in September 2004

9 BURKINA FASO TER

A Celebration on the Occasion of „Availability of Water from the

W Ziga Reservoir“ in Ouagadougou

On 10th July 2004 celebrations took place at great expense and in the presence of the State President of Burkina Faso to mark the most significant phase of the Ziga Project: For the first time water from the Ziga reservoir was available in the capital.

A glance at the history of this project shows why this symbolic event was met with so much enthu- siasm by the local media and the population.

In 1984 Lahmeyer International (LI) carried out the first studies for water supply for Ouagadougou Everybody is happy about the water from the Ziga reservoir financed by Kreditanstalt für Wieder- aufbau. Nevertheless, LI could exe- On the day of the celebration, awards to firms who had con- cute the final design of the main lot 10,000 people gathered at the main tributed to the success of the proj- between 1994 and 1996 and project pump station. This area was ect, some of which – including LI – implementation began in 1998. reserved for invited guests and was are still involved. decked out with a large fountain, The main cause of the delay stands and tents. The highlight of the celebrations was the funding at that time of 107 was the opening by State President billion CFA Francs (163 million Euro) The ceremony was celebrated Blaise Compaoré of the shut-off by 12 different international devel- with music, traditional and modern valve of the distribution line, causing opment banks with various credit dance performances, speeches and a 10-metre-high fountain.

The water from the Ziga reser- voir is still not available to the major- ity of the consumers. It will take a further two to three years before all the planned new pump stations, water towers, distribution pipes and house connections have been built. LI is responsible for site supervision and technical assistance on the project and will be involved in the region for some time to come.

State President Blaise Harald Hechler Compaoré, at the opening of the Ziga distribution line

conditions. ln Burkina Faso this is Technical Data of the Ziga Project still a record amount for a project. Catchment area of the Ziga dam 20,800 km2 3 The water deficiency in the capi- Storage capacity 200 million m 3 tal is chronic, with recurring emer- Flood relief 2,400 m /s Distribution pipeline DN 1000 43 km length gencies at the end of each dry sea- Water treatment plant son. There has been no important and pumping station 4 500 m3/h improvement in the water supply Water towers 8 x 2000 m3 system concerning water quantities Main distribution network 54 km DN 300 to DN 900 over the last 20 years, which makes Distribution network 103 km DN 100 to DN 300 the urgency of the situation particu- New house connections 50,000 larly clear. Estimated project costs 2004 230 million Euro

10 GERMANY

Preliminary Design for the New Pumped Storage Plant Waldeck I TER A W

The pumped storage plant Waldeck I, owned by E.ON Wasser- kraft GmbH, has been operational since 1932 and is situated down- stream of the Edertal dam on the Eder river near Kassel, Germany. The four conventional generating sets, with a head of 297 m and a total installed capacity of 140 MW, are out-of-date and, after 70 years of continuous operation, in need of substantial repair or even replace- ment. At present it is anticipated that a new shaft-type powerhouse, equipped with a single 70 MW pump turbine unit, will be added to the existing structure. Furthermore two of the old turbines of the con- ventional sets are to be refurbished to provide short-term reserve capacity.

As basis for the investment deci- Powerhouse and penstocks of the existing pumped storage plant Waldeck I sion of E.ON Wasserkraft GmbH, Lahmeyer International executed the The location for the new shaft ment of the new pressure tunnel preliminary design between May powerhouse was chosen adjacent and the draft tube/shaft - for a com- and August 2004 for a new shaft to the existing powerhouse. As a pact and thus cost-effective layout powerhouse with 70 MW, alterna- consequence of a straight extension of the shaft powerhouse, has a tively 50 and 90 MW installed capac- and connection to the existing pen- number of operational advantages ity as well as for the necessary stocks, this location leads to min- resulting from the unchanged rehabilitation works at the upper imised hydraulic losses, allows - as accessibility of the existing struc- reservoir and on the old turbines. a result of a perpendicular arrange- tures, and provides enhanced flexi- bility in the arrangement of the draft tube/shaft and the outlet structure.

The shaft powerhouse has a diameter of 17 m and a depth of 35 m to provide the required suc- tion head for the new 70 MW pump turbine of –25 m. In addition, major parts of the existing switchyard, the lower reservoir and - after a neces- sary rehabilitation - also the upper reservoir continue to be used for the new pumped storage plant Waldeck I.

The design provided contains a technically sound and excellently executable concept, which makes best use of the existing components so as to contribute to an economic implementation. Provided that a prompt decision for construction is made, it may be possible to com- mence the new plant’s commercial operation in spring 2009.

Dr. Volker Spork Powerhouse with electro-mechanical equipment from 1932

11 JORDAN

TER Mujib Dam A W

technical site conditions which were only revealed in detail after the con- struction started. It was also required to optimise the RCC mix design to take account of the avail- able aggregates, the climatic condi- tions and the load conditions to be applied.

Because of the ongoing con- struction contract the design adjust- ments had to be done under extreme time pressure. Everyone working in the construction field can imagine that such a situation results in some contractual difficulties.

The trivial insight that adequate geotechnical and material investiga- tions are imperative for the success- ful execution of a dam project was once again confirmed. Mujib Dam with full reservoir Bernhard Stabel The Mujib Dam built for irrigation A total of 660,590 m3 RCC and purposes is located some 100 km each 26,000 m3 facing mix and south of Amman on Wadi Mujib. bedding mix were placed. For the The owner is the Jordan Valley rockfill dams 1.3 mil. m3 were used. Authority. The maximum height of The possible maximum flood (PMF) the dam is 67 m and the crest is 5840 m3/s and results in a specif- length is 764 m – of which the cen- ic discharge of 19.5 m3/s/m over tral 466 m are made of roller com- the dam. pacted concrete (RCC). The flood release is effected by an ungated The design adjustments were spillway across the RCC dam. caused by the geological and geo- Construction started in January 1999 and was completed in December 2003. The inauguration by King Abdullah II took place on Easter, April 12, 2004.

The construction contracts had already been signed when Lahmeyer International came into the project. After reviewing the tender design some design changes were intro- duced. These included:

• change of RCC with high to one with low cementitious content, • omitting the concrete slab in the stilling basin, i.e. rock excavation only, •introduction of clay core rockfill dams at both abutments in order to bridge a weak and soft mudstone layer surfacing above the valley floor, • curving the dam axis at the left abutment in order to improve foundation conditions. Mujib Dam with partial impounding

12 MOZAMBIQUE

Strategic Sanitation Plans for Seven Municipalities TER A W

Lahmeyer International, in cooper- • Data collection and situation ation with German and local partners, analysis of all sectors in all munic- prepared Strategic Sanitation Plans ipalities, considering existing plan- covering storm water drainage, waste- ning documents and ongoing water and waste management and projects e.g. for water supply institutional development for the • Analysis of urban development municipalities of Maputo, Matola, plans, present and planned land Beira, Dondo, Nampula, Pemba and use, population projections Quelimane in Mozambique. • Immediate measures • Socio-economic assessments Since the end of the civil war in • Discussion of development con- 1991 strong efforts have been cepts / options, comparison of mobilised to rehabilitate urban infra- alternatives, preliminary designs structure at a minimal level. The devel- for all main components as part opment policies of the Government of feasibility studies have concentrated since the end of • Assessment of the potentials for Preliminary design for the rehabilitation and expan- sion of storm water drainage in the centre of the nineties on the elaboration of service improvements and reor- Nampula medium and long-term perspectives ganisation of the responsible for the efficient upgrading of infrastruc- municipal departments, options The implementation costs are ture and the improvement of service for private sector participation estimated at more than USD 250 quality considering the extremely limit- • Cost estimates and budget plan- million; preference was given only to ed financial and human resources. ning for the implementation phas- the most cost effective solutions. For es of 2, 5 and 8 years storm water drainage cost estimates The Project is part of the First • Financial analyses, options for cover the primary system compo- National Water Development Project cost recovery and tariff systems nents. In 2 municipalities sewerage (1998-2003), implemented by the systems shall be rehabilitated and Government with support of the World Personnel of the National extended to a total capacity of Bank and other bi and multilateral Directorate of Water was continuous- 500,000 population equivalents. partners. During the first years of the ly and intensively involved in the plan- Project, activities concentrated on ning process. The municipalities were After completion of the services water resources management and represented by multi-disciplinary in August 2004 the Client is to pre- improvements to the water supply. In working groups chaired by the may- pare the implementation of Phase 1 October 2002 the National Directorate ors. and 2, with a duration of 2 and 5 of Water, Ministry of Public Works and years, respectively. Housing, commissioned a Joint For the planning horizon the Venture of German consulting firms Strategic Sanitation Plans defined, Rolf Koch with Lahmeyer International as lead structured and estimated costs for firm, to establish the complex and more than 200 subsequent projects demanding master planning. (around 80 planning and general sup- port projects and approx. 120 reha- The Strategic Sanitation Plans bilitation and expansion projects), for the most important cities of which are summarised in sector Mozambique, with a present popula- budget plans for each municipality. tion of more than 3 million, approxi- mately 50 % of the urban population of the country in 2003, consider a planning horizon of 15 years up to 2017 and cover the following infra- structure sectors:

•Storm water drainage •Wastewater management and excreta disposal • Collection and disposal of munici- pal waste • Disposal of hazardous and health care wastes

The work programme was imple- mented in three project phases and comprised the following main compo- nents: Preliminary design of the main components of the proposed sewerage in the centre of Maputo

13 SUDAN

TER Basic Surveying for Merowe Dam Project A W

During the 42 days of the DGPS campaign 1.3 GB of raw data were gained for the calculation of 1044 baselines. The precise levelling was carried out by means of digital level- ling instruments. In inhospitable ter- rain with temperatures of almost 50° Celsius a distance of approx. 2000 km had to be covered by walking.

The evaluation of the surveying data showed that the demanded GPS measurement in one of the 200 new control points accuracy was not only kept but even exceeded. With the completed At the fourth cataract of the Nile control network the Merowe Dam River during the next seven years Project dispose of a very homoge- the Merowe Dam is under construc- nous, precise and permanent Location of project area tion. This is considered to be a key marked surveying network which project for the economical and suites in all respects for the future social development of North Sudan. demands and tasks. to survey the fourth cataract at the highest water level. But even then Since 2000 Lahmeyer The bathymetric survey of the many passages could only be navi- International (LI) is commissioned by river Nile totally consisted of 312 gated with great difficulties. the Merowe Dam Project Implemen- cross sections at intervals of about tation Unit (MDPIU) of the Ministry of 2 km. The average length of one In contrast to this the riverbanks Irrigation and Water Resources, section amounts to approx. 1 km. In were surveyed during the low water Khartoum, to carry out extensive the future reservoir area the section season in order to obtain an overlap surveying works within the frame of width ranges between 2 and 10 km. between echo sounding measure- the Merowe Dam Project. By mid Three different methods were ments and RTK GPS measure- 2003 LI was instructed to carry out applied for the cross section sur- ments. the basic surveying for the planning veys. With GPS supported echo and the construction execution of sounding measurements the depths With the completion of the raw the project. of the riverbed were defined, RTK data processing and production of GPS observations provided data for cross and longitudinal sections, The basic surveying comprises islands and riverbanks and in addi- detailed and comprehensive infor- the installation of a long-range con- tion an existing terrain model was mation about the Nile River topog- trol network and the bathymetric used for the reservoir area. raphy between Abu Hamed and survey of the Nile River. The new Dongola is now available for the first control point network was sup- The field work was a challenge time. posed to provide a planimetric and for team and equipment due to the altimetric accuracy at centimetre many cataracts and the numerous Leonhard Weimper level which was in view of the local outcropping and hidden rocks with- circumstances a very challenging in the Nile itself and required an stipulation. extraordinary logistical effort. The measurements were carried out Consisting of 200 new control during the flooding season in order points the network stretches from Abu Hamed downstream to Dongola over a length of 600 km along the river Nile. Pillars made of concrete with a 3-D-Mark on top were especially produced for the marking of the control points. Due to the high demand in accuracy dif- ferent surveying methods were applied for the determination of the coordinates: The static DGPS method for the determination of the planimetric coordinates and precise levelling for the determination of the Overcoming the elevations. fourth cataract

14 CROATIA Modernization of Railway Corridor Vc

To improve the European trans- Chart showing the Croatian Railway Networks with Corridor portation corridors, the railway corri- Vc from the Hungarian border dor Vc running north-south through to the border of Bosnia and Croatian territory will be rehabilitated Hercegovina; from the border of and modernized. Bosnia and Hercegovina to the Adriatic Coast RANSPORTATION

The line sections in question T were originally developed for a max- imum speed of 160 km/h. The line extends southwards over some 123 km from northeast of Beli Manastir through Osijek and Slavonski Samac to Metkovic and the port of Ploce on the Adriatic Coast.

The total cost for the modern- ization of the railway infrastructure facilities will be Euro 96.62 million. The construction works include •installation of Railway Automatic A portion of the costs are being the line overhaul and diversion of a Telephone network and financed by a loan of Euro 40 million part of the line, reconstruction or exchange, from the European Investment Bank refurbishment of bridges, tunnels •installation of fibre optic cables to the Republic of Croatia. On July and stations. For electrical works, along the whole length of the 26th 2002, Lahmeyer International power and telecommunications: line, (LI) has been commissioned as •the establishment of a remote Consultant together with German • Reconstruction of electric power control of train traffic system and and Croatian partners by the supply facilities, the installation of GSM-R and Croatian Railways for track works, • electrification of the line from UHF networks in the main sta- station buildings, tunnels, bridges Beli Manastir to Strizivojna/ tions. as well as signaling, telecommuni- Vrpolje, cations and catenary. • new catenary on the sections The project started in June Strizivojna/Vrpolje – Slavonski 2002. Construction works in the The main services to be provid- Samac and Metkovic – Ploce, southern section were completed in ed by LI and its partners cover the • the reconstruction or improve- June 2004. Start of construction review of existing preliminary and ments to the low voltage net- works in the northern section are detailed designs, assistance in com- work for stations incl. lighting, scheduled for the middle of 2005. piling the relevant tender documents • the installation of Auto-Stop Completion of the project is sched- and in the tender evaluation equipments, securing of level uled for the end of 2006. process, the construction supervi- crossings to improve traffic sion and issue of reports. safety, Dieter Krüger

GREECE Stavros Depot of Athens Metro

The Stavros Depot is located at the end of Metro Line 3, in the direction of Athens International Airport. The Depot had to be com- pleted before the Olympic Games in Athens in 2004 to improve efficiency of the public transport system between the airport and the city. In 2002, Lahmeyer International was awarded the detailed final structural and electro-mechanical design by Stavros Depot during Themeliodomi S.A. construction

15 The Stavros Depot has an area The track level of Stavros is top-down method to construction of 27.000 m2 and is for the mainte- located some 8 m below ground was used. Diaphragm walls were nance and repair of the rolling stock level, supported by retaining walls used as perimeter walls and bored of Line 3. Furthermore, the future up to 12 m high, and about 800 m piles as columns. The roof slab was rapid rail connection to Athens long. The retaining walls are partly poured directly on the ground, and International Airport will be linked constructed as twin walls, with an the excavation was through an with the Metro at Stavros. access ramp in between. At the far open area in one corner of the roof end, there is a cut-and-cover tunnel slab. The metro maintenance building which widens like a trumpet for the is 130 m by 90 m wide having 13 entry of the trains into the depot. Dr. Gertraud Lappas tracks. The roof of the building will also serve as the ground floor for An underground rainwater catch 3 RANSPORTATION an 8-storey high car park which will basin, capacity of 4,500 m , was

T accommodate some 2,400 cars. planned as a temporary buffer in The car park will have direct access case of heavy rainfall. To gain time, to the Attiki Odos highway and the this basin was built after the depot nearby bus transfer station. building. Due to restricted space a

VENEZUELA Metro Los Teques

Caracas, the capital of Venezu- ela, has a population of over 4.5 million, and is the economic centre of the country. The explosive growth of the population is attributed to migration of the rural population from the poorer areas to the city.

This rural exodus requires that the infrastructure of the city and the region has to be continuously devel- oped. To date there is still a lack of an efficient public transport system in the region.

Because of the difference in alti- tude, the climate in the suburb of Los Teques is milder than that in Caracas, which is why people prefer to live in Los Teques and commute to their work in Caracas.

The only direct link is the Terminal Los Teques during construction "Panamericana", which is one of the most used roads in Venezuela. With The Metro climbs the mountain- tunnel ventilation system, giving pri- the construction of the Metro Los ous track in less than ten minutes at ority to the operational safety and Teques, the daily congestion of this a speed of 80 km/h. At the terminal security. One critical aspect was the link road will be avoided or at least station the track of the Metro Los compatibility of the existing infra- reduced. Teques will be connected to the structure with Metro Caracas. Line 2 of Metro Caracas, which runs The Metro Los Teques is 9.5 km into the centre of the city of In the next project phase these long and runs through a topographi- Caracas. studies will be the basis for the ten- cally difficult area in the narrow, der documents and for tendering of winding Rio San Pedro valley, which In 2003, Lahmeyer International all electro-mechanical equipment for is also characterized by highly ero- formed a consortium with a local Metro Los Teques. sive surface conditions. Several river partner and another international training measures were necessary consulting firm to perform studies to Max Läuchli to protect respective valley sections establish the design criteria and where heavy landslides can occur in specify in broad terms the rolling the rainy season. stock, the power supply and the

16 GREECE SYGROU - FIX Transfer Station in Athens

The Athens Metro has been in operation since 2000 and is contin- uously being extended. Transfer sta- tions are necessary to allow pas- sengers to change from private car, bus or tram to the Metro. RANSPORTATION T The first of these transfer sta- tions "Sygrou - Fix" is located close to the centre of Athens between two busy roads. Construction was completed before the Olympic Games in August 2004, allowing traffic diversions to be removed. In 2002 the Greek contractor AEGEK- EKTER-METON awarded Lahmeyer International the design works for the excavation support and the final structural, architectural and electro- mechanical works. The transfer station Sygrou-Fix is located close to the centre of Athens between two busy roads.

The station comprises an under- building, the safety against uplift ground structure and of the 5- ground car park with 6 parking lev- was insufficient. Permanent soil storey building els. Shops occupy part of the first anchors were not permitted to be parking level. On the ground level used. The thickness of the slabs in A non-linear analysis was carried there is a bus stop with space for 4 two thirds of the area was increased out. For all possible load combina- articulated busses. An external cor- from 0.30 m to 0.42 m to improve tions (before and after failure of the ridor for pedestrians from level -1 to stability of the structure. The rein- ground anchors, maximum or mini- level -2 allows direct access to the forced concrete piles of the retain- mum ground water level, with or Metro Station. A tram stop is locat- ing wall of the excavation pit were without earthquake) the required ed on the opposite side of one of integrated into the structure as reinforcement for each structural the roads. additional weight, where possible. member was calculated separately. This was achieved by constructing Envelopes of the required reinforce- The car park accomodates 650 corbels on the external walls below ment were used for detailed engi- cars having an area of 5100 m3 and the cap beams, which connect the neering drawings. a volume of 110,000 m3. A 5-storey piles. building is planned to be built on Dr. Gertraud Lappas top of the car park. The main part of the statical cal- culation was done using a three- Initially, Lahmeyer International dimensional finite element model. suggested the Top-Down Method, This model comprised beam and to minimize interference with the column elements, which are com- neighbouring Metro station and tun- bined with plane elements repre- nel. However, for reasons of con- senting slabs, walls and ramps. The struction time and to protect possi- foundation slabs and the external ble archeological findings, the cut walls were assumed to be elastically and cover method was decided bedded on the surrounding soil. upon, using reinforced concrete piles with ground anchors. The following load cases were considered in the analysis: During excavation, one side of the Metro station was completely • Dead loads of the car park and exposed, which resulted in unsym- of the 5-storey building metrical loads due to soil and water • Earth pressure due to dead and pressure from only one side. live loads from each side (effec- Therefore, re-calculations of the sta- tive after failure of the anchors) bility of the Metro station were nec- •Water pressure, inclusive uplift essary. • Live loads inside and on top of the car park Detailed calculation of the uplift • Live loads of 5-storey building pressure showed that before con- • Earthquake earth pressure struction of the planned 5-storey • Earthquake loads of the under-

17 GERMANY Modernization of the Auxiliary Klingenberg Dam ROUP G

The Klingenberg dam in the Wilder Weisseritz Valley was con- structed in the years 1908–1914 according to plans prepared by the Royal Hydraulic Engineering Administration of Saxony, to secure flood protection and also improve management of low water flows in ONSULTING the lower reaches as well as the

C drinking water supply for Dresden.

The auxiliary dam at the root of the Klingenberg dam was commis- sioned in 1954 in order to improve the water quality. The auxiliary dam was badly damaged by the extremely high floods of August 2002 and has been provisionally repaired in the meantime.

In order to carry out the planned full-scale reconstruction of the main dam, the reservoir must be com- The existing auxiliary Klingenberg dam and flood relief spillway pletely emptied. During this time the release of raw water will be from the auxiliary dam reservoir, which struction will have a height of dam being affected by the inflow of will be enlarged. approx. 12 metres and the length of disturbed sediment. Two bottom its crest will be around 144 metres. outlets, each with a nominal diame- The Dams Administration of the The dam volume will be approx. ter of DN 800, will be integrated into Free State of Saxony commissioned 25,000 m3. the front face of the flood relief spill- Hydroprojekt in December 2003 to way. modernize the auxiliary dam includ- The spillway – because of its ing the construction of a replace- ground plan named duck’s bill – has Additionally, to improve the ment inflow gauging station. a height of 10 metres. The fixed water quality and management, the spillway edge is a good 45 metres cross-connection to the auxiliary The modernization measures will long. In addition, a vertical slide dam will be converted into a low include the construction of a homo- gate (4 x 2) for controlling the flood overfall, the inlet section and the geneous dam on the same site protection capacity will be fitted on downward gradient step at the old which will be 4 metres higher than the front face. During normal opera- Beerwalde gauging station will be the existing one. This will increase tion the gate is open. It will be converted river bottom slide and an the operating volume from 70,000 closed when necessary to prevent oil barrier also installed. Further, the to 240,000 m3. The new dam con- the body of raw water in the main Beerwalde gauging station will be

The proposed site of the new gauging station for the measuring of water levels and water quality parameters

18 renaturized, the replacement inflow flows are measured with a high order to take into account the dis- gauging station constructed, a float- degree of accuracy. In the same way, placement at the site. ROUP sam barrier erected and improve- flood discharges up to 50 m3/s are ment of forest roads carried out. to be recorded. As with the existing The planning documents for the G gauging station, besides water lev- new gauging station are presently in The existing inlet gauging station els, water quality parameters will be the hands of the authorities for will be filled in the future and there- measured also in the future. approval. Construction is expected fore no longer usable. to begin in early 2005. Parallel recording of measuring For the management of the dam data of the new and old levels will Jörg Jahn it is important that low and mean be necessary for at least one year in Hydroprojekt Ingenieurgesellschaft mbH ONSULTING C

GERMANY New Development of the ‘Berliner Platz’ in the City of Gießen

The Municipal Council of the City of Gießen intends to bring together all its Municipal employees, who are currently based in different buildings spread over the city, under one roof, in the new development of the Berliner Platz (Berlin place), in the centre of the city. The existing building ensemble currently accom- modates 200 employees and a police station. These buildings are no longer suitable to provide up to date, both, community and local government services.

The site will be big enough to accommodate the Municipality as Berliner Platz well as commercial and/or private developments. Further tasks to be achieved: Public Private Partnership (PPP) model is not limited to find the best To find a company or group of • Definition of project tasks, innovations comprising design, con- companies that will develop an inte- • Establishment of an internet struction, operation and mainte- grated concept for both, the munici- based communication, nance, but also to find the best pal administration and the commer- •Project manual including project financial investments for the project. cial sector remains one of the lead- specifications, job description, ing goals. documentation structure, The current running architectural • Scrutinising architectural and competition will close at the end of The total project is split into the engineering design. January 2005. The purpose of this following sub-projects: competition is to identify the best In respect to the various sub- concept regarding design, invest- •Architectural competition, projects, involved parties and inter- ment costs and operating costs and •Master plan development, faces, the establishment of a sound to select an architect to carry out •Removal of the present users project structure and project organi- the detailed planning work. • Demolition and soil remediation, sation is the key factor for a suc- •Tendering and investors' com- cessful execution of the project. All the design proposals submit- petition, ted for the competition will be • Design and construction, The technical project manage- exhibited for a period of 3 weeks. •Procurement of architects / ment is carried out by Lahmeyer consultants. Rhein-Main, while the legal project We look forward to the selected management by the law firm FPS, design which will henceforth be Due to the complexity, a tough Fritze Paul Seelig, Frankfurt a.M., intensified in the following stages. co-ordination of the various sub- Germany. projects is required to manage and Thomas Börner monitor the project successfully. The reason for establishing a Lahmeyer Rhein-Main

19 Lahmeyer International GmbH Friedberger Str. 173 61118 Bad Vilbel Germany Tel.: +49 (61 01) 55-0 Fax: +49 (61 01) 55-22 22 E-Mail: [email protected] Internet: www.lahmeyer.de