| Huntsville Northern Bypass | |
| Alternate Name: | Martin King Jr Boulevard |
| Other Name: | Research Park Boulevard |
| Type: | Loop |
| Length Mi: | 13.462 |
| Country: | United States |
| Location: | Huntsville, Alabama |
| Terminus A: | Interstate 565 |
| Direction A: | Southwest |
| Junction: | Jordan Lane Memorial Parkway |
| Terminus B: | US 231 |
| Direction B: | Northeast |
| Commissioning Date: | 1969 |
| Completion Date: | Western part: 2005Northern part: 2025 |
The Huntsville Northern Bypass is a road project located in the city of Huntsville, Alabama. It is a route that loops around the Northern portion of the city, and will be used to alleviate traffic on University Drive (US 72) and Interstate 565. The first half of the loop will be finished by 2025, while the eastern half does not have an estimated completion date.[1] Construction of the section east of Pulaski Pike began in November 2023 and the cost to complete the project is expected to be around $53 million.[2] The project East of Pulaski will be 3.4 miles long, with an additional mile of road maintenance on existing sections of the route, signed as Alabama State Route 255 (Martin Luther King Jr Boulevard).[3] The contract to construct this portion of the bypass was granted to the Wiregrass Construction company for $28.46 million.[4]