Project Cartagena: "A flood free city"

Cartagena is a city located at the Caribbean coast of Colombia, founded in 1533 by the Spanish. Its population consists over one million inhabitants, making it the fifth largest city in Colombia. Due to its strategic location, the port of Cartagena has grown into the largest port of the Caribbean coast, making it very important for the Colombian...

Umhlanga Rocks coastal defense

The eThekwini coastline is a vulnerable coastline subject to chronic erosion and damage due to sea level rise. In 2007 a severe storm caused major physical and economic damage along the coastline, proving the need for action. Umhlanga Rocks is a densely populated premium holiday destination on the eThekwini coastline suffering from similar...

Recife: Coastal protection plan

Over the past decades the north-eastern coast of Brazil has been degrading due to erosion. This degradation has both natural- and men-made causes. Brazil has no specific laws and acts which relate to coastal protection and management up to this date. Beaches in the metropolitan area of Recife show variety in beach width according to the seasons....

Feasibility study on the use of a floating breakwater to protect a new artificial beach in Balchik, Bulgaria

The coast of Bulgaria is subject to erosion. Because of this fact, around the town of Balchik, which is situated on the Black Sea coast, almost no sandy beaches are present. Last years there have been vast tourist developments in and around Balchik. Because of these developments, the province demands solutions to adapt coastal protection...

A Numerical Study on Design of Normal and T-Head Coastal Groins

Groins are old and intuitive means of reducing erosion and are found along the coast worldwide, although according to CEM (Coastal Engineering Manual 2003), “they are probably the most misused and improperly designed of all coastal structures”. The original purpose of groins was to reduce local erosion, that is, to hold the width of beach in...

Erosion of the beach of Historic Varadero, Cuba

Master project report. This report handles the erosion problems on the main tourist resort of Cuba, Varadero, situated on the Peninsula de Hicacos. With a length of 22 km, a maximum width of 500 m, The Peninsula de Hicacos constitutes a natural barrier separating the shallow waters of Cardenas Bay from the Florida Strait (Figure 1-3)....

Development west coast Taiwan: Redesign coastal area between Da’an River and Dajia River

Master project report. In the year 2004 there was a flooding in an area between Da'an River and Dajia River in Taichung County, Taiwan. The flooding was caused by outlets which were clogged up, thus lacking the capacity to discharge the amount of rainwater that the typhoon caused into the sea. A survey conducted by the project group, showed that...

Eigenschappen van gabionboxen onder golfaanval

Dit afstudeerverslag handelt met name over de golftransmissiecoefficient van gabionboxen belast door golven. Het onderzoek is uitgevoerd in het kader van een afstudeerproject aan de Technische Universiteit Delft, in samenwerking met baggermaatschappij Boskalis. Gabions worden op dit moment vooral toegepast als bodembescherming tegen de...

The impact of gas extraction and sea level rise on the morphology of the Wadden Sea: Extension and application of the model ASMITA

It is the policy of the Dutch government to aim at the extraction of gas from the smaller gas fields in The Netherlands to spare the large Slochteren field in Groningen. The gas reservoirs below the Wadden Sea are counted among the smaller fields. Their capacity is estimated to 200 thousand million cubic metres, and their economic value is equal...

Hard, zacht of een combinatie?: Kostenanalyse van de methoden voor kustverdediging

Al eeuwenlang wordt er in Nederland gestreden met de zee. Erosie van de kust zorgt voor een grote bedreiging van het achterland van overstromingen met vaak grote schade tot gevolg. Om de steeds waardevollere infrastructuur in het achterland te beschermen, worden er steeds verdergaande maatregelen getroffen om de kust tegen overstromingen te...

Modelling the impact of an offshore breakwater on the shore

This report is the result of a master thesis of the author, student at Delft University of Technology, faculty of Civil Engineering. The study was carried out at DELFT HYDRAULICS. In this report the effects of an offshore breakwater on the shore are investigated with the morphodynamic models DELFT2D-MOR and DELFT3D. These, respectively 2...

Paalrijen als kustverdediging

Een paalrij bestaat uit naast elkaar aangebrachte vertikale palen of balken en staat als geheel loodrecht op de kust. De geometrie van paalrijen (in bovenaanzicht) komt overeen met die van stenen strandhoofden. Het primaire doel van paalrijen is het reduceren van het langstransport, waardoor een eventuele erosie wordt verminderd of een aanwas...