When.com Web Search

Search results

1. Results From The WOW.Com Content Network

2. Lock (water navigation) - Wikipedia

   en.wikipedia.org/wiki/Lock_(water_navigation)

   A plan and side view of a generic, empty canal lock. A lock chamber separated from the rest of the canal by an upper pair and a lower pair of mitre gates.The gates in each pair close against each other at an 18° angle to approximate an arch against the water pressure on the "upstream" side of the gates when the water level on the "downstream" side is lower.

3. Pond liner - Wikipedia

   en.wikipedia.org/wiki/Pond_liner

   Pond liners are manufactured in rolls or accordion-folded on pallets. When deployed in the field their edges and ends are overlapped and seamed together. Methods are thermal fusion, solvents, adhesives and tapes. The edge of the pond liner is generally rolled over the top of the soil slope and secured in an anchor trench or it can be fixed to a ...

4. Chicago Harbor Lock - Wikipedia

   en.wikipedia.org/wiki/Chicago_Harbor_Lock

   The west gate is open and the east gate is closed putting the lock chamber at the level of the river. The Chicago Harbor Lock, also known as the Chicago River & Harbor Controlling Works, is a stop lock and dam located within the Chicago Harbor in Chicago, Illinois at the mouth of the Chicago River. It is a component of the Chicago Area Waterway ...

5. Panama Canal locks - Wikipedia

   en.wikipedia.org/wiki/Panama_Canal_locks

   The Panama Canal locks (Spanish: Esclusas del Canal de Panamá) are a lock system that lifts ships up 85 feet (26 metres) to the main elevation of the Panama Canal and down again. The original canal had a total of six steps (three up, three down) for a ship's passage. The total length of the lock structures, including the approach walls, is ...

6. AOL Mail

   mail.aol.com

   You can find instant answers on our AOL Mail help page. Should you need additional assistance we have experts available around the clock at 800-730-2563.

7. Silt fence - Wikipedia

   en.wikipedia.org/wiki/Silt_fence

   Silt fence. A silt fence, sometimes (misleadingly) called a "filter fence," [1] is a temporary sediment control device used on construction sites to protect water quality in nearby streams, rivers, lakes and seas from sediment (loose soil) in stormwater runoff. Silt fences are widely used on construction sites in North America and elsewhere ...