Wikipedia

Johan van Veen

Johan van Veen (Uithuizermeeden, 21 December 1893 – The Hague, 9 December 1959) was a Dutch hydraulic engineer. He is considered the father of the Delta Works.

Johan van Veen
Johan van Veen (1953)
Born(1893-12-21)21 December 1893
Uithuizermeeden, Netherlands
Died9 December 1959(1959-12-09) (aged 65)
The Hague, Netherlands
Alma materDelft University of Technology
OccupationCivil engineer
EmployerRijkswaterstaat
OrganizationGovernment
Notable workDelta Works

Education

edit

Johan van Veen was the fifth child of seven in a farming family. He was the brother of Marie van Veen, married to the artist Johan Dijkstra. In 1913, after high school graduation, he started his studies in Delft at the Technische Hoogeschool van Delft. He studied civil engineering. In 1919, he graduated as "ingenieur" (equivalent to M.Sc. in engineering).[1]

Provincial Water Authority Drenthe

edit

Van Veen worked as an engineer for the Drainage Department of the Provincial Water Authority of the Province of Drenthe. The task of this department was to develop plans to improve the drainage and road structure of the province. In turn, this would enlarge the agricultural yield and to transport the products in a more efficient way to the markets (in the western part of the Netherlands).

During World War I, it became evident that the Netherlands depended too strongly on food products from abroad. The interwar years were focused on agriculture. In order to have solid grounds for such plans, the borders of watersheds were charted, discharge measurements were made and leveling out valleys and the adjacent higher grounds works were executed. Van Veen carried out these studies in cooperation with agricultural engineer F.P. Mesu (who graduated in Wageningen).[2]

Surinam

edit

In 1926, van Veen left the Provincial Water Authority. From August 1926 to October 1928, he worked in Surinam at the Surinaamse Bauxiet Maatschappij (Suriname Bauxite Company), later a subsidiary of Alcoa, in Moengo, Suriname.[3]

Rijkswaterstaat

edit

In 1929, after his return to the Netherlands, van Veen held a position at Rijkswaterstaat (the Executive Agency of the Dutch Ministry of Infrastructure). He became head of the newly created Research Department for Tidal Rivers and Estuaries. His first assignment was to improve the hydraulic conditions at Hellegat, a complicated bifurcation of estuary branches. He also developed a new method to calculate tides, an improvement on the formulas developed by Hendrik Lorentz on the closure of the Zuiderzee. He published his Ph.D. thesis on sand movement in the Strait of Dover (which was relevant for Dutch coastal morphology), based on extensive measurements in that area. He wrote many (Dutch) reports on the coasts, tidal movements, estuaries and salt intrusion.[4]

In the years before and during World War II, van Veen executed many studies on the problem of salt intrusion into tidal rivers. During the war, he prepared a plan called "Verlandingsplan" to manipulate tidal rivers in such a way that natural silting-up would take place, and that to reclaim this new land would be easy. Just after the war, he presented this plan again, but mainly because at that time the country focused rather not on reclaiming land, but on repairing war damage.[5]

Delta Plan

edit

From 1937 onward, van Veen warned about the deplorable condition of the Dutch flood defences. He stipulated that a disaster was imminent, but politically he found no support for his warnings, the main reason being that improvement of dikes would cost a lot of money, which was not available in the Netherlands just after the war (the country depended mainly on money from the Marshall Plan).

In 1939, Pieter Jacobus Wemelsfelder, a colleague of van Veen, published a paper in the journal de Ingenieur (English: The Engineer) that was the first to apply statistical methods to the occurrence of storm surges.[6] His research suggested a shift in design approach, moving away from basing flood design on the highest observed flood level towards designing for a flood with a calculated probability. In the same year, van Veen conducted a factor analysis of storm surges for the first time. His work explored how changes in river run-off, river channel geometry, and sea level rise affected the design flood. Despite these studies focusing on different aspects of storm surges, they arrived at the same conclusion: that the delta region of The Netherlands faced significant dangers.[7] Since 1938, van Veen had been working on plans to mitigate these risks. He proposed constructing a dike ring for four islands, a storm surge barrier in the Lek, and a high ring of dikes around Dordrecht.

Van Veen published a book in English on the history of Dutch Hydraulic Engineering (Dredge, Drain, Reclaim, the Art of a Nation).[8] In later reprints of this book he added a chapter by "Dr. Cassandra" as he used this pseudonym, including these warnings. His final warning report was a study describing the risks, including a plan to improve the situation by closing some estuaries. This document was dated January 29, 1953. During the following night The Netherlands were struck by the biggest storm surge ever, the North Sea flood of February 1st, 1953. After the disaster a State Commission was installed (18 February 1953), and Johan van Veen was appointed Secretary of the State Commission.

In May 1953, the commission offered its first interim report, recommending immediate closure of the Hollandse IJssel with a storm surge barrier Flood barrier, and to implement Van Veen's plan to close the estuaries (the Delta Works). Eventually this work had been carried out; the final report of the commission was published in 1960, one year after Johan van Veen died. In The Netherlands Johan van Veen is remembered as the "father of the Delta Plan" and in England as "Master of the Floods".[9][10]

Inventions

edit

Johan van Veen has a number of inventions to his name. Notable is the Van Veen Grab Sampler, a device to take (disturbed) bed samples from the seabed (around 1930).[11] He is also the inventor of the pneumatic barrier to prevent salt intrusion (around 1940).[12] In 1930, he proved the analogy between electricity and water flow. From this principle he developed an analog computer to calculate tidal flow (electric analogon).[13] In the period 1944-1956 it had become operational. Later on this machine was updated and became the practical computer to calculate tidal flow and water levels in the Dutch Delta to predict the effect of closure works, the Delta Works. This analog computer now bears the name Deltar.[14]

Personal life and death

edit

On May 5, 1927, van Veen married Hendrika ("Henny") Aalfs during his stay in Suriname. They had three children. Unfortunately, their marriage was not very happy. Although he came from a Dutch Reformed Church family, he converted to Christian Science until 1937, following his sister Anna, who lived in the United States.[15]

Van Veen suffered from a number of heart attacks, the first one in 1937 and later in 1948 a heavy one after his "four-island-plan" was rejected. In 1959 he had his last, fatal attack in the train when on his way to a meeting regarding his plan of a new harbour near Delfzijl, the Eemshaven.[16]

Publications (in English)

edit

For a full list of all his publications (mainly in Dutch) is referred to the Tresor of Dutch Hydraulic Engingeering.

Notes

edit
  1. ^ Van der Ham (2003), ch. 1
  2. ^ Van der Ham (2003), ch. 2
  3. ^ Van der Ham (2003), ch. 3
  4. ^ "Publications of Johan van Veen". Trésor der Hollandsche Waterbouw (in Dutch). Stichting Blauwe Lijn. Retrieved 2021-07-24.
  5. ^ Van der Ham (2003), ch. 4
  6. ^ Wemelsfelder, P. J. (1939). "Wetmatigheden in het optreden van stormvloeden" [Regularities in the occurrence of storm surges]. De Ingenieur (in Dutch). 54 (9): B31-35.
  7. ^ van Veen, J. (1939). "Te verwachten stormvloedstanden op de benedenrivieren : eerste voorlopige becijfering" [Expected storm surge levels on the lower rivers: first preliminary calculation]. Rijkswaterstaat Publicatie Platform (in Dutch). Retrieved 2023-04-01.
  8. ^ Van Veen, Johan (1962). Dredge, Drain, Reclaim, the Art of a Nation. The Hague, Netherlands: Matinus Nijhoff. p. 200.
  9. ^ Van der Ham (2003), ch. 8
  10. ^ Maris, A.G. (1955). "The Sealing Operation on the Zeeland Coast". Proceedings of the Institution of Civil Engineers. 4 (6): 809–827. doi:10.1680/iicep.1955.11427. ISSN 1753-7789. Retrieved 13 August 2023.
  11. ^ Van Veen (1936), p164-166
  12. ^ Van Veen (1941)
  13. ^ Van Veen (1937)
  14. ^ Rooijendijk 2009, p347
  15. ^ Van der Ham (2003), p24
  16. ^ Van der Ham (2003), p228

References

edit
  • Rooijendijk, Cordula (2009). Waterwolven: een geschiedenis van stormvloeden, dijkenbouwers en droogmakers [waterwolves, a history of storm surges, dike builders and reclaimers] (in Dutch). Uitgeverij Atlas. ISBN 9789046703380.
  • Van der Ham, Willem (2003). Meester van de zee. Johan van Veen (1893-1959), waterstaatsingenieur [Master of the Sea. Johan van Veen (1893-1959), Engineer at Rijkswaterstaat] (in Dutch). Uitgeverij Balans. ISBN 9050185959.
  • Van Veen, Johan (1936). Onderzoekingen in de hoofden [Research in the Strait of Dover] (Thesis) (in Dutch). Utrecht University.
  • Van Veen, Johan (7 May 1937). "Getijstroomberekeningen met behulp van wetten analoog aan die van Ohm en Kirchhoff" [Calculation of tidal current using laws analog to those of Ohm and Kirchhoff]. De Ingenieur (in Dutch). 52 (19): B73–B81.
  • Van Veen, Johan (7 March 1941). "Twee middelen om het zoutbezwaar bij zeesluizen op te heffen" [Two methods to solve the salt-intrusion problems at navigation locks]. De Ingenieur (in Dutch). 56 (10): B33–B34.
edit
Retrieved from "https://en.wikipedia.org/w/index.php?title=Johan_van_Veen&oldid=1258495476"
  NODES
HOME 1
languages 1
mac 2
Note 3
OOP 1
os 12