spill·​way | \ ˈspil-ˌwā How to pronounce spillway (audio) \

Definition of spillway

: a passage for surplus water to run over or around an obstruction (such as a dam)

Examples of spillway in a Sentence

Recent Examples on the Web When water levels reach the threshold needed to trigger operation under the U.S. Army Corps of Engineers' authorization, the spillway redirects water from the Mississippi and floods the Atchafalaya River and swamp. Halle Parker | Staff Writer, NOLA.com, "Longtime protectors of the Atchafalaya's swamps form coalition, push to join state task force," 25 Dec. 2020 Booms outlined the shallow water, along with a tall stack of sand bags, as workers scurried around the floor of the spillway. Matthias Gafni, SFChronicle.com, "42,000 gallons of gasoline leak under canal in Walnut Creek; residents furious," 10 Dec. 2020 And while the work on the dam and spillway at Lower Shaker Lake was thought to have been completed last year, it has been drained a few times since. Thomas Jewell, cleveland, "Horseshoe Lake dam project back on drawing board with $10 million estimate," 22 Sep. 2020 Those of us who run, bike or just generally enjoy the greenspaces of White Rock Lake regularly pass the preserve’s small gate, near the spillway parking lot, without giving it much thought. Sharon Grigsby, Dallas News, "Oncor carved out part of White Rock Lake’s heart. How does Dallas stop the next land massacre?," 23 Oct. 2020 The hurricane risk reduction project is on the east-bank of the Mississippi River in St. Charles, St. John the Baptist and St. James parishes, from the Bonnet Carré spillway to Garyville. Staff Reports, NOLA.com, "Hurricane risk reduction meeting, book talks and more metro-area community news," 21 Oct. 2020 The project will allow water to be released from the spillway when tropical storms or hurricanes threaten the Houston region. Savannah Mehrtens Staff Writer, Houston Chronicle, "Releases not required: Lower pooling keeps SJRA from sending water downstream during storms," 25 Sep. 2020 The entire length of the earthen dam -- basically running the whole walkway between North Park and South Park boulevards -- needs to be shored up, with modifications to the spillway. Thomas Jewell, cleveland, "Horseshoe Lake dam project back on drawing board with $10 million estimate," 22 Sep. 2020 After the crumbling Oroville Dam spillway threatened to plunge the northern Sacramento Valley under a 30-foot wall of reservoir water, Sheriff Kory Honea ordered a massive evacuation from the floodplain. Lizzie Johnson, San Francisco Chronicle, "The Siege at Station 62," 18 Sep. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'spillway.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of spillway

1889, in the meaning defined above

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Time Traveler for spillway

Time Traveler

The first known use of spillway was in 1889

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Statistics for spillway

Last Updated

20 Jan 2021

Cite this Entry

“Spillway.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spillway. Accessed 28 Feb. 2021.

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