The New Mombasa Waterfront Highway, also referred to as Coastal Highway, is a highway that runs along the coastline of the Mombasa island on the seawall surrounding the metropolis of New Mombasa. It is run by the New Mombasa Transit Authority.
During the second day on October 21, 2552, three ODSTs (The Rookie, Edward Buck and Veronica Dare) fought their way along the highway to safely escape the city with a critical asset, a Huragok holding important data from Vergil, a subroutine of the city's Superintendent Artificial intelligence. After pushing through heavy Covenant resistance on the highway and fending off waves of Covenant at the main entrance to the Uplift Nature Reserve, they were eventually extracted by a Covenant Phantom dropship stolen by the squad. The highway, along with the entire city, was destroyed when the Covenant glassed the area in order to uncover the Forerunner structure beneath it.
The highway snakes around southeastern tip of Mombasa Island. The highway travels along the southern and northern coasts of the island until an unknown point on either coast. At the eastern most point of the highway, it curves around ONI Alpha Site. However, connections to Alpha site and the highway are known to exist. Several exits exist on either coast as well. One exit on the south coast is to the Uplift Nature Reserve.