| Alamitos Bay | |
|---|---|
 Alamitos Bay, 2015 | |
  Alamitos Bay | |
| Location | Long Beach, California |
| Coordinates | 33°44′59″N118°07′05″W / 33.74972°N 118.11806°W /33.74972; -118.11806 |
| Part of | Pacific Ocean |
| Primary inflows | Los Cerritos Channel |
| Ocean/sea sources | Pacific Ocean |
Alamitos Bay is an inlet of eastSan Pedro Bay[1] on thePacific Ocean coast ofsouthern California, United States, between the cities ofLong Beach inLos Angeles County andSeal Beach inOrange County, at the outlet of theSan Gabriel River. It is near Los Angeles.
The bay is named for theSpanish word for 'littlepoplars'.[2]
Alamitos Bay is protected by both the natural sand spitPeninsula and theLong Beach Breakwater.It is divided from theSan Gabriel River andSeal Beach by a pair ofjetties. The natural geography has been heavily altered by dredging and landfill subsequent to development.
The bay was severely impacted by the1939 California tropical storm.[3]
Alamitos Bay containsMarine Stadium, created for Olympic rowing events.
After efforts to clear contaminated sediment and improve circulation,Heal the Bay has re-assessed the water's quality.[4] In a 2020 report, the "Summer Dry Grade" at the 2nd Street Bridge was "B," and at Mother's Beach "A."[5] "Winter Dry Grades" were "C" and "B," respectively. "Wet Weather Grades" were both "F."
The water quality of the bay could be diminished in the future if the pumps of the nearbyAlamitos Energy Center are decommissioned. The city is assessing a replacement for these pumps to maintain the bay's water circulation.[4][6]
Naples, a collection of three islands, is entirely within Alamitos Bay.
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