Harbour design and coastal protection Crucita - Ecuador

Harbour design and coastal protection Crucita - Ecuador

Bakker, P.B.

Ligteringen, H. (mentor)
Booij, N. (mentor)
Van de Graaf, J. (mentor)
Groenveld, R. (mentor)

Civil Engineering and Geosciences

2001-06-01

In this study, research has been done to the nature and causes of an erosion problem in Crucita by calculating wave properties along the coast and the resulting sediment transports. Furthermore measures against this erosion have been examined and a fishery port has been designed. Finally the feasibility of both these actions has been investigated. Based on the calculations performed, the erosion seems a permanent problem, caused by increasing longshore sediment transport along the coast. This transport increases due to increasing wave heights towards the North. The shape of the bay and the predominant wave direction cause this increase in wave height. According to the calculations, beach nourishment is the most promising measure to protect the coast, but since a port is desirable as well, a large breakwater combined with onetime beach nourishment is advised. A cost-benefit analysis of a possible project in Crucita has been performed, based on a prediction of the future fleet and future number of tourists. According to this analysis, combining both the coast protection and the port is the best option. Based on this analysis, 20% of the total income from tourism and fisheries is required during the lifetime of 30 years to pay of the investments. This is 40% of the extra income (income generated by the project) from tourism and 73% of the extra income from the fisheries. The increase in income due to the project is 10% for fisheries and 60% for tourism. The implementation of the project therefore seems to be beneficial for the region. It produces more income and employment. It does however not seem a feasible project for financing by a commercial investor.

coastal erosion
fishery port design

http://resolver.tudelft.nl/uuid:935424ad-905a-4067-9de3-24d7dec92353

TU Delft, Civil Engineering and Geosciences, Hydraulic Engineering

Student theses

master thesis

(c) 2001 Bakker, P.B.