A Grand Island Traffic Jam 2018 Nebraska Official State Travel Guide Far beyond ordinary, a traffic jam in Grand Island takes place every March when half a million sandhill cranes — and several million geese — fill the skies. To experience this crazy loud, surround sound, jam-packed, unplugged wildlife wonder, book a viewing-blind tour with the Crane Trust. CraneTrust.org | 308-382-1820 SeeTheCranes.com