Waaxda Beeraha ee Mareykanka ayaa soo saartay tirakoobkii ugu dambeeyay ee 2017 ee tirooyinka beeraha bartamaha Abriil; Tirakoobka dhammaan Gobolka Multnomah ayaa laga heli karaa halkan. Natiijooyinka tirakoobka ayaa muujinaya muhiimada EMSWCD's dadaallada ilaalinta dhul-beereed ee shaqeeya, maadaama Degmada Multnomah ay lumisay 15% dhul beereedkeeda laga bilaabo 2012 ilaa 2017 - ama qiyaastii 2.5 acres maalintii.

Beeralayda Degmada Multnomah waxay celcelis ahaan 2 sano ka yar yihiin asaagooda Oregon iyo Maraykanka, taas oo ay sii xoojisay our Barnaamijka Incubator Headwaters beeralayda cusub iyo kuwa bilaabay. Iyo celceliska qiimaha acre-kiiba ee dhulka beeralayda iyo dhismayaasha oo kordhay 75% ee Degmada Multnomah ilaa kan labaad ee ugu sarreeya degmo kasta oo Oregon ah, muhiimada shaqadeena si aan u wanaajino helitaanka dhul beereed la awoodi karo ayaa ka weyn sidii hore.