For most reservoirs, the discharge capacity of the various outlet facilities influence flood routing. The administration of the discharge works is a function of the operating procedure for the reservoir. Therefore, it may be useful, in lieu of routing the flood, to secure the design notes and operating schedules from the agency responsible for operating the reservoir. Operational releases can exist for a long period of time and can even threaten the highway with sustained inundation. For this reason, the design notes and operating schedules should be carefully evaluated.