Heves megyei aprónyomtatványok 1/C

The backwater reach and the reservoir formed by the river stretch between Kisköre és Tiszalök and by the flood plain between Kisköre and Tiszabábolna which is flooded by the dammed water and transformed to a flat-land reservoir. The useful storage capacity at the ultimate development is 400 million cu. m, its surface area is 127 sq.km, while its average depth is 2,5 m.

The reservoir will be developed gradually: bed retention at El. 87,50 m A. O. D. from 1973, retention at El. 89,00 m A. O. D. with 96 million m3 useful volume of water and with 100 sq. km surface area in 1978, retention at El. 90,50 m A. O. D. with 300 million cu. m storage capacity from 1981 will be created according to the plans.

After the completion of the Csongrád Barrage the retention level will be at El. 91,20 m A. O. D. and the volume of stored water 400 million cu. m.

The reservoir was developed upstream of the barrage. The levees of the reservoir in a small part were constructed as new levees, but to the greatest part, in a length of about 65 km, were constructed as reinforcement of the existing flood protection levees.

The cross-section of the reservoir levees is formed according to the conditions of the retention. The slope of its bank is 1 :4 down to El. 90,50 m A. O. D. Further under this elevation the slope is 1 :10 and 1 :6 on the water side and on the protected side, respectively. The crest width is 6 m and its height contains 1,5 m freeboard above the flood level of an estimated 1% propability of occurrence.

To collect the seepage water moving under the levees seepage canals have been constructed along the protected side of the reservoir levees. The groundwater from the first aquifer under