The Second Preparatory Survey Report for Outline Design on the Project for Improvement of Honiara Port Facilities in Solomon Islands
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Ministry of Infrastructure Development Solomon Islands THE SECOND PREPARATORY SURVEY REPORT FOR OUTLINE DESIGN ON THE PROJECT FOR IMPROVEMENT OF HONIARA PORT FACILITIES IN SOLOMON ISLANDS NOVEMBER 2013 JAPAN INTERNATIONAL COOPERATION AGENCY ECOH CORPORATION EI JR 13-242 Ministry of Infrastructure Development Solomon Islands THE SECOND PREPARATORY SURVEY REPORT FOR OUTLINE DESIGN ON THE PROJECT FOR IMPROVEMENT OF HONIARA PORT FACILITIES IN SOLOMON ISLANDS NOVEMBER 2013 JAPAN INTERNATIONAL COOPERATION AGENCY ECOH CORPORATION PREFACE Japan International Cooperation Agency (JICA) decided to conduct the preparatory survey and entrust the survey to ECOH CORPORATION. The survey team held a series of discussions with the officials concerned of the Government of Solomon Islands, and conducted a field investigation. As a result of further studies in Japan, the present report was finalized. I hope that this report will contribute to the promotion of the project and to the enhancement of friendly relations between our two countries. Finally, I wish to express my sincere appreciation to the officials concerned of the Government of Solomon Islands for their close cooperation extended to the survey team. November, 2013 Mr. Kazunori Miura Director General Economic Infrastructure Department Japan International Cooperation Agency Summary SUMMARY (1) Background and Summary of the Project Solomon Islands is an island country consisting of 6 main islands and about 1,000 small islands. The import and export of international cargoes and the most of the domestic cargoes are depending on sea transportation. Although there are 6 major ports in the country, the international cargoes are mainly handled in Honiara Port located at the capital city in Guadalcanal Island. The major commodities imported to the country comprise food, industrial material and equipment, apparel, fuel and others that are essential for the life of people. The major products exported are palm oil, cacao, lumber, fisheries products and others that are important to support the country’s economy. A tribal conflict has occurred from the latter part of 1990’s and the cargo handling volume in Honiara Port has greatly decreased once, but it has sharply increased by the economic recovery after conflict in 2003. As the result, the existing port facilities are in the situation to exceed the cargo handling capacity at this moment and many container ships are obliged to wait for berthing in offshore for a long time. In addition, although Honiara Port has an international berth with the extension of 120m, berth extension does not meet to cater for large sized calling ships and a portion of the berth has less capacity of structural strength to handle heavy cargoes. Therefore, safety and efficiency of cargo handling operation are the problems to be settled urgently. The major export products such as palm oil and mineral resources are expected to increase in future. Therefore, the improvement of cargo handling efficiency and safety of this port are urgently required for the future economic development of this country. Under such circumstances, the Governmrnt of Solomon Islands has requested “The Project for Improvement of Honiara Port Facilities in the Solomon Islands” to construct the Second International Wharf under the grant aid cooperation to the Government of Japan. However, after this request was made, PIAC (Pacific Infrastructure Advisory Centre) that is coordination institution for the development of infrastructures of Pacific Ocean has released the report on scoping study of Honiara Port. According to this report, the Second International Wharf has been analyzed not to be necessary until around the year of 2020, in case that a new copra wharf is constructed. JICA was in need to verify the urgency and necessity of this project, considering that analyzed results and etc. Therefore, the Preparatory Study (No.1) was conducted in September 2012 and confirmed the followings. i) Offshore waiting time of calling ships have been increased due to the congestion of rapid increase of container ships, ii) Cargo handling operation has been inefficient due to the shorter berth length against the size of calling ships and iii) Due to the narrow water area adjacent to the international wharf, a risk is growing for both of large sized international ship and small sized domestic ships. (I) As the results, the conclusion was reached that the execution of this project is necessary to implement earlier than the year of 2020 described in the PIAC report for the capacity improvement and the safety of Honiara Port. Based on the results and relevant information obtained through preparatory study (No.1), this study aims to confirm the necessity and urgency of the requested project components. And proper preliminary design and project implementation plan including cost estimation of the project are carried out as the project under grant aid scheme. Furthermore, PIAC has reported the necessity to make and improve a business plan from the view of organizational operation of related authorities. The organizational operation system is necessary to review more since the great impact is considered due to the double operations of the existing wharf and the new international wharf when the project is implemented. Therefore, the alternative plan is proposed in this study by studying practical organizational operation focusing on the out-sourcing of stevedoring works to cater for multiplied operations of the existing berth and the new international wharf. (2) Summary of Study and Components of Project The Government of Japan decided to conduct the preparatory study (No.2) at the request of Solomon Islands and dispatched the study team as follows, Field Survey : March 7 to April 28, 2013 Outline Design Explanation : October 1 to October 11, 2013 The international wharf of Honiara Port has been constructed essentially as a general cargo wharf. However, it is used as wharf for container handling in order to cope with container cargoes which increased rapidly by recent introduction of larger sized container ships. With the gap between the existing condition of port facilities and utilization situation, various problems presently become obvious in its vessel congestion, the efficiency and safety of cargo handling operation and the counter measures become urgent issues. In order to solve the issues, the new international wharf in addition to the existing international wharf is considered to be absolutely imperative. Following necessary and very urgent components are selected out of the project components of the request letter in August, 2011. These components are necessary for the construction of the new international wharf. * International Wharf : Berth, End Revetment, Dredging and Filling, Mooring Dolphins * Container Yard : Yard Pavement * Accessories : Water Supply to Wharf, Lighting Facility (II) In view of safety navigation of vessels, beacons to show the berth location during night to be included as navigation aids facility. 1) New International Wharf The new international wharf is planned in a comprehensive manner according to the results of sizes of calling ships, arrival draft of calling ships and ship maneuvering operation at the berthing and deberthing, water depth distribution with sounding survey, direction of prevailing wind, normal wave characteristics and etc. Target ships for berth planning are selected from the calling liner container ships to Honiara Port. According to their ship particulars such as overall length and draft of the representative ships, berth dimensions such as berth extension and water depth are determined. The berth extension is set as 150m by examining the coverage of ship geared crane to the wharf and location of mooring dolphins. The water depth of the berth is set as 11.0 m below low water leverl by arrival draft and full draft of calling container ships. Structural type of the quay are examined by three alternative type, namely steel pipe sheet pile structure, sheet pipe pile open jetty and caisson type structure. Steel pipe sheet pile structure is selected through comparison of emviromental aspects, construction cost, construction period and construction condition. Due to steep bathymetry of the adjacent water area, breakwater to protect the wharf from intruding wave can not constructed in the project area, so that the facility planning and design are carried out by considering the wave condition. Based on the forecasted wave condition of surrounding water area, rate of effective workable days of the berth is predicted in allowable range without breakwater protection. To facilitate wave overtopping to the wharf, the crown height of the berth is set as highest within the height stipulated in the criteria. And parapet is intalled on the top of the north and south revetment to reduce wave overtopping, as well. As to the land area of the wharf, access roads with 2 lanes are included in the north and the south end for smooth container transportation to the container yard. 2) Container Yard Container yard plan is established based on the container handling volume of the year of 2020. Container yard allocation is examined by efficient operation jointly with the new container yard of the new international wharf and the existing container yard. Container stacking plan is set by reviewing container traffic movement during most congested period of container ship operation. Paving area of the container yard is installed to the all area of the new whalf, as well as the some urgently required area of the existing container yard. Remaining area of the existing container yard will be carried out by SIPA, because SIPA is capable to construct by itself. Pavement structure of the container yard and access road are determined according the heavy traffic of container handling equipment. (III) 3) Accessories Regarding the water supply facility, SIPA is to extend the water supply pipe up to back of the new wharf and pipe laying from the back to inside of yard is executed by this project. Night cargo handling works are made in the new international wharf of Honiara Port.