Water hazard means the risk of water to an area, regardless of whether the risk is posed by water bodies or artificial water accumulations (flooding, ice skating) or is caused by other events (e.g. cloudburst, rupture of water water storage).
If immediate precautions are necessary to avert an emerging water hazard, the neighbouring municipalities, even if they are not threatened, are obliged to provide the necessary assistance in accordance with Section 52 (1) of the Hessian Water Act (HWG) if this is the order of the day. can happen without significant disadvantages of its own. The municipality obliged to do so must act on its very toits as soon as it recognizes the water hazard at the latest on the call for help from the threatened municipality and not only on the order of the water authority. If a dike is at risk in the event of flooding, the residents of the threatened and, if necessary, the neighbouring communities shall, by means of personal services or other services on the orders of the water authority in accordance with Section 52 (2) hWG, have necessary assistance.
Where necessary, the water authorities shall set up flood warning and reporting services to above-ground waters in order to warn the local competent authorities in good time of expected flooding, Section 53 (1) HWG. Municipalities which, according to experience, are endangered by flooding must establish a water defence service in accordance with Section 53 (2) hWG.
In the event of an imminent imminent danger and in the event of a decalibration of the Rhine and Main winter dikes, the water authority is authorised to carry out operations by the units and facilities of the civil protection (Section 26 of the HbKG). The obligation to pay costs and the reimbursement of costs for the use of the fire brigades are governed by Sections 60 and 61 of the HBKG.