Accession Number : AD0012077


Title :   DANUBE RIVER LOCK AND DAM SYSTEM AT PASSAU, GERMANY. HYDRAULIC EFFECTS OF REGULATION, OPERATIONS, OR POSSIBLE DEMOLITION


Descriptive Note : Special study


Corporate Author : ARMY ENGINEER DISTRICT WASHINGTON DC MILITARY HYDROLOGY R AND D BRANCH


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/012077.pdf


Report Date : Mar 1952


Pagination or Media Count : 44


Abstract : Information is presented regarding the hydraulic effects of regulation or demolition of the Kachlet Dam located on the Danube River above Passau, Germany. The reach of the river which would be affected extends from the mouth of the Isar River in Germany to Engelhartzell, Austria. The data which are given include: (1) the stage, discharge, and velocity of the river; (2) channel characteristics, river profiles, and channel widths; (3) the magnitude and duration of flood waves created by breaching the dam, and their effect on the bridging, crossing, and navigation of the river; (4) the effects created by upsetting the operation of the hydraulic structures of the Isar River; and (5) the effects on bank conditions, crossings, and navigation resulting from lowering or raising the reservoir behind the Kachlet Dam. Demolition of the dam is expected to interrupt navigation and military-ferrying operations for the initial 2 to 4 hr for a distance of 25 km below the dam. Waterfront structures in Passau would be severely damaged, but little damage would occur to railroad and highway bridges or river banks. Navigation between Passau and Vilshofen would be severely restricted. Breaching the Hofham Lock would make navigation hazardous on the Isar River for 6 hr but would do little other damage. No significant still-water barriers appear to be possible by raising the water stage of Kachlet Dam, but they can be created on the Danube by breaching the flood-control dikes from the mouth of the Isar of Hofkirchen.


Descriptors :   *DAMS , WATERFRONT STRUCTURES , WATER , DEMOLITION , TIME , PROFILES , NAVIGATION , WIDTH , RIVERS , FLOODS , BANKS(WATERWAYS) , HYDRAULICS , AUSTRIA , HIGHWAYS , CHANNELS , HYDRAULIC EQUIPMENT , WAVES , BRIDGES , GERMANY(EAST AND WEST) , MOUTH , VELOCITY , DAMAGE


Subject Categories : Civil Engineering
      Military Operations, Strategy and Tactics
      Armor


Distribution Statement : APPROVED FOR PUBLIC RELEASE