Safety at Lakes, Oceans, Rivers, etc.
Lakes, rivers, oceans, and other natural bodies of water have many inherent hazards often overlooked by the general public. Areas not designated for recreation (swimming, boating, etc.) can be especially dangerous since they are untested and unimproved and may hide such hazards as:
- Dangerous aquatic plants and animals
- Drains and sewer systems
- Murky water
- No lifeguard service
- Rising and falling water levels
- Unknown bottom conditions
- Waves and seiches
The best way to avoid such hazards is to restrict activities to areas that have been selected and prepared for recreational activities.
Arroyos, Canals, Ditches, Flood Water
- Flood water
- Swift water rescues and training
Beaches, Oceans, Great Lakes
- Beach safety 101 (WebMD)
- Beach safety for kids (Livestrong)
- Beach survival guide (UNSW)
- Lake Michigan safety (Pentwater Police)
- Lake Superior safety (NMU)
- Ocean safety (California Dept of P&R)
- Ocean safety (Surfer’s Handbook)
- US ocean safety (US Ocean Safety)
- US beach safety flags
- International beach safety flags
- Longshore current (NOAA)
- Longshore current and beach drift (gvsu.edu)
- Understanding longshore drift (Folly Island)
Piers and jetties
- General information
- Rip current rescues
Rocks and reefs
Sand and Sandbars
- General information
- Great Lake waves
- Rescues in strong surf
- Science of the Surf
- Shore break waves
Winds and floats
The purposes of a dam are to impound water for a variety of reasons, including to add to the human or livestock water supply, to provide irrigation, to generate energy, to provide flood control, to create a recreational area, etc. There are 85,000 dams in the US, as few as 85 in Delaware and more than 7,000 in Texas. Most states have over 1,000. The average age of a US dam is 53 years old.
- Hydroelectric dams
- Low head dams/hydraulic currents
Lakes, Ponds, Etc.
A lake is an inland body of standing water. A small lake is called a pond. Similar bodies of water include estuaries, lagoons, pools, and quarries.
- Lakes and ponds
- One reason why the male 15-24 year age group has a high rate of drowning and spinal injuries (dca04001) - Swimming in quarries is usually illegal; jumping from a height is risky enough but back flips; is alcohol involved? Possibly….
- Quarry dangers (THV)