With the recent floods that have happened or continue to happen, routes into many pulls may be altered. Arlington is no exception to this. You cannot enter Arlington via US Highway 30 from the west. East into town is open.
If you are coming from the west or north, highway 275 that runs down past Fremont, Nebraska has a detour posted to get to US Hwy 30. At the present time, I-29 is open to Missouri Valley, Iowa where you can pick up Highway 30 west and it will take you directly into Arlington.
From the south, you will have to find a route that will get you to I-29 at Missouri Valley, IA where you can pick up US Hwy 30. I-29 is closed south of Council Bluffs and into northern Missouri.
Coming from the east, US Hwy 30 is open all the way into Arlington.