Live Chat I-80 Community Nearby Traffic Gretna Post Office (Amenity postoffice) 2024-06-12 Roadnow Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to Gretna Post Office (Amenity Postoffice) Omaha, NE 8.70 Springfield, NE 9.65 Ashland, NE 11.99 Interstate highway exits close to Gretna Post Office (Amenity Postoffice) Exit 432, i80 2.69 Exit 439, i80 8.69 Exit 440, i80 10.89 Interstate highways close to Gretna Post Office (Amenity Postoffice) i80 map 2.69 i680ne map 18.19 i29 map 32.42 State roads close to Gretna Post Office (Amenity Postoffice) US 6 NE map 0.20 US 77 NE IA map 24.39 US 75 NE map 26.73