Isikhumbuzo seSizwe seNtaba yaseSt. Helens singaphakathi kweHlabathi leSizwe laseGifford Pinchot. Eyona ndlela ifumaneka ngokufanelekileyo ukusuka ecaleni lasentshonalanga, njengoko kuboniswe kwimephu engezantsi. Ukusuka kwi-Interstate 5, thabatha ukuphuma 68 kwaye uqhube phambili empuma kwi-Highway State 504. Amaziko angamahlanu ahambeleyo angatholakala kwi-504.
Ingqungquthela yaseNtabeni yaseSt. Helens kunye neGifford Pinchot Ihlathi leSizwe linokufumaneka kwakhona ukusuka kwicala langasempuma, ngeendlela zenkonzo yehlathi # 99, okanye ukusuka kumzantsi, ngeNdlela ka-50 Highway kunye neDolophu yaseCourgar.
Kwihlathi leSizwe laseGifford iPhinchot kunye neNtaba yeSizwe yeNtaba yeHolum yaseHelens uHelen, ukuxhamla kuphela phakathi kweendlela eziphambili zihamba ngeendlela zokuncedisa ihlathi. Imephu yemisebenzi yehlathi, ngaphezu kwebalazwe yendlela yomgwaqo, ikhuthazwa kakhulu kwiindwendwe ezicwangcisa ukuhamba ukusuka kwi-Highway 504.
Ezinye iimephu zeMount St. Helens
- Ihlathi leSizwe laseGifford Pinchot (PDF)
- INtaba yaseSt. Helens yoLonwabo (PDF)
- 1980 Uphulo lwe-Ashfall Map