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Lower Monumental State Airport (WSDOT-Managed)

City: Kahlotus
ID: W09

All State Airports Image - Kahlotus/Lower Monumental State/W09  

Winter airport opening now in effect. Rwy 01/19 is now open for winter recreational aviation use only. Do not land if there is snow on the runway. No winter snow removal will be conducted. Runway surface may be softer than normal when wet. Please check NOTAM's and call Airport Manager for further information at 360-618-2477.


Located five miles south of Kahlotus, Washington, Lower Monumental is one of our airports on the Snake River we lease from the Corps of Engineers. You may camp on the airport or take the children to see the "real" way our power is made. It is the most primitive of the three on the Snake River, and the dam is quite far from the airport. For dam tours, call 509-282-3219.

The 3,300 foot gravel runway is located part way up the west wall of the canyon. The airport elevation is 813 feet, and density altitude problems are common in the summer.  The surface is gravel and in good condition and has been compacted and oiled yearly since 2009.  A vehicle access gate has been installed to limit unauthorized airport access; however people and animals have been observed on the runway. Spray operators also occasionally use the facilities. Vehicle access is allowed by permission only on a limited basis by contacting the state airport manager.  

The windsock is located midfield on the west side. Terrain rises quickly east and south of the field. There is a powerline 2300 feet north of the airport, and another paralleling the field 500 feet west. We recommend overflight to determine field conditions and check for obstructions. Watch for snakes while walking around. The airport is generally open from June 1st to October 1st.

Available Information for Lower Monumental State Airport

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