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The Newcastle Railroad Embankment Dam, located in Newcastle, Washington, was completed in 1900 for the primary purpose of flood risk reduction along the Tr - May Creek.
This earth dam with a stone core stands at a hydraulic height of 55 feet and a structural height of 50 feet, providing a maximum storage capacity of 120 acre-feet. The dam covers a surface area of 1 acre and has a drainage area of 0.23 square miles, with a maximum discharge capacity of 1530 cubic feet per second.
Despite its critical role in flood risk management, the Newcastle Railroad Embankment Dam has been assessed as being in poor condition with a high hazard potential. The last inspection conducted in August 2018 revealed the dam's deteriorating state, prompting concerns about its ability to withstand potential flooding events. With the dam falling under state jurisdiction and regulation by the Washington Department of Ecology, there is a pressing need for maintenance and potential repair work to ensure the dam's continued effectiveness in protecting the surrounding area from flooding.
Year Completed |
1900 |
Dam Length |
150 |
River Or Stream |
Tr - May Creek |
Primary Dam Type |
Earth |
Surface Area |
1 |
Hydraulic Height |
55 |
Drainage Area |
0.23 |
Nid Storage |
120 |
Structural Height |
50 |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
55 |
| Location | Reservations | Toilets |
|---|---|---|
Point Robinson Campground
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Tolt-MacDonald Park Campground
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Tolt MacDonald Park
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Site 27
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Site 36
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Site 37
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Newcastle Railroad Embankment Dam
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