Live Chat I-680 NE Community Nearby Traffic Portsmouth Traffic 2024-09-28 Roadnow Click for Real Time Traffic Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to Portsmouth Panama, IA 8.73 Tennant, IA 9.05 Persia, IA 10.41 Interstate highway exits close to Portsmouth Exit 29, i80 17.03 Exit 27, i80 17.71 Exit 29b a, i680ne 17.82 Interstate highways close to Portsmouth i80 map 17.03 i680ne map 17.82 i29 map 34.69 State roads close to Portsmouth IA 44 map 0.53 US 59 IA map 15.17 IA 37 map 15.31