Many times communities must respond to flash flooding, which occurs mostly in the summer in small water basins after drenching storms. You can check water levels of local streams and rivers at the Corps' RiverGages.com. The district’s Emergency Management Office often assists communities during these and other flood emergencies and can provide sandbags, temporary floodwalls and technical assistance. To obtain these services, community officials must contact their county emergency officials who in turn will contact us.