Live Chat I-40 Community Nearby Traffic William B Umstead State Park 2024-04-25 Roadnow Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to William B Umstead State Park Morrisville, NC 10.71 Durham, NC 11.81 Cary, NC 12.37 Interstate highway exits close to William B Umstead State Park Exit 285, i40 7.60 Exit 287, i40 7.75 Exit 284, i40 7.99 Interstate highways close to William B Umstead State Park i40 map 7.60 i440nc map 9.28 i85 map 17.39 State roads close to William B Umstead State Park US 70 NC map 1.33 NC 50 map 5.21 NC 540 map 7.93