Vízügyi Közlemények, Kivonatok, 1965
Dégen Imre: Az 1965. évi dunai árvíz és árvízvédelmünk fejlődése
(45) section has a 6 m wide crest and slopes inclined at 1 : 3 and 1 : 5 on the water- and land sides, respectively. The terrain adjacent to the levee is cleared, borrow pits and depressions are backfilled, while over levee sections through forested areas strips of suitable width are cleared on both sides. 3.5 FLOOD CONTROL AROUND BAJA AND ALONG MARGITTA ISLAND By N. Molnár and A. Vukovári. Civ. Engrs. (For the Hungarian see pp. 226) The Lower-Danube Valley District Water Authority is responsible for flood control on the left-hand bank of the Danuoe over the reach between Dunaföldvár and the Hungarian —Yougoslav border, from river station 1560 to river station 1433 km. The length of the levees along the Danube is 133 km, while along the tributaries 22 km. An area of 112.600 hectares is protected. In Chapter 1 main parameters of the levees and the 1965 highwater are related. A plan showing the location of flood levees is given in Fig. 1. The rate of construction work for strengthening levees, begun after the 1956 flood disaster and completed strengthening work are shown in Figs . 2 and 3, respectively. Active control operations were started substantially on the 27th April, but peaking did not occur until the 19th June, i.e. after 54 days, when stages reached the level of the levee crest (Fig. 4), especially over the reach bounded by the southern border of the country. The duration of high water on the Mohács gage is shown in Fig. 5. Protection works that became necessary along the levee section to the south of Baja, protecting Margitta island, are described in Chapter 2. Operations carried out with the objective of preventing adverse effects of underseepage are dealt with first (Figs. 6 and 7), followed by measures taken against leakage through the levee body. Weak spots calling for especially large efforts over the stretch downstream of Baja are indicated in Fig. 8, while different stages; of work are illustrated in Figs. 9 to 14. Protective works along the levees of the Danube-Valley Main Canal discharging above Baja into the Danube are outlined in Chapter 3. In Chapter 4 a summary is given of the main figures of flood protection over the section of the Lower Danube Valley District Water Authority. Danger causes have been compiled in Table II, while materials used for protection are shown in Table III. A brief account is given of reinforcement work commenced after the high water and cross sections to which levees are currently enlargened.
