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Flood History In Chehalis, Washington
The city of Chehalis is located in Washington state and rests upon the Chehalis River. Due to the city's location in the Chehalis Valley along with the nearby confluences of the Newaukum River south of Chehalis and the Skookumchuck River in neighboring Centralia, the community has suffered from numerous floods. Some floods have occurred resulting from overflows of creeks and minor tributaries in the Chehalis river basin, and severe cresting of the Cowlitz River has occasionally led to flooding in the Chehalis area. The flood stage levels of the Chehalis, Newaukum, and Skookumchuck have fluctuated upwards historically, based on the height of dikes, levees, and floodplain surveys. Water inundation from heavy rains and excessive snowmelt has led to a considerable number of historic flooding events in the twin cities of Centralia and Chehalis. Accounts of floods are traced as far back as early Native American settlement and since the beginnings of the city of Chehalis. Most floods ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
100-year Flood
A 100-year flood is a flood event that has a 1 in 100 chance (1% probability) of being equaled or exceeded in any given year. The 100-year flood is also referred to as the 1% flood, since its annual exceedance probability is 1%.Holmes, R.R., Jr., and Dinicola, K. (2010) ''100-Year flood–it's all about chance 'U.S. Geological Survey General Information Product 106/ref> For coastal or lake flooding, the 100-year flood is generally expressed as a flood elevation or depth, and may include wave effects. For river systems, the 100-year flood is generally expressed as a flowrate. Based on the expected 100-year flood flow rate, the flood water level can be mapped as an area of inundation. The resulting floodplain map is referred to as the 100-year floodplain. Estimates of the 100-year flood flowrate and other streamflow statistics for any stream in the United States are available.Ries, K.G., and others (2008) ''StreamStats: A water resources web application 'U.S. Geological Survey, Fac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lintott-Alexander Park
Lintott-Alexander Park is a park in Chehalis, Washington, located west of Interstate 5, I-5 and south of Washington State Route 6. Due to its location in a bend of the Chehalis River (Washington), Chehalis River and at the confluence of the Newaukum River, the park can flood in most years. History Locally referred to as Alexander Park after the family who owned the grounds, the land was used as a park by the regional population before it was donated to the city of Chehalis. The park, situated in a curve of the Chehalis River, was known at the time for its deep swimming hole, also known locally as the Ol' Swimmin' Hole, and its sandy beach. Initial offers by the Alexander family to donate the land for a park began in 1919 and in April 1920, the parcel was deeded to the city. Plans such as the building of bath houses, water and sewer systems, and more accommodating access from Ocean Beach Highway, were undertaken before it was to be officially transferred. The Alexander family f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
