The Trans-Labrador Highway (TLH) is the primary public road in Labrador, the mainland portion of the province of Newfoundland and Labrador, Canada. The highway's total length is . The paving of the entire highway was completed in July 2022. The original western/central portion of the TLH is designated as Route 500 and measures divided as follows: Quebec - Labrador boundary to Labrador City/Wabush (, asphalt surface) Labrador City/Wabush to Churchill Falls (, asphalt surface) Churchill Falls to Happy Valley-Goose Bay (, asphalt surface) Heading southeast is Route 510, the north portion of the TLH that has been designated Labrador Coastal Drive and measures divided as follows: Happy Valley-Goose Bay to Cartwright Junction ( asphalt, gravel, the remainder was paved in 2022 Cartwright Junction to Port Hope Simpson (, asphalt surface) Port Hope Simpson to Mary's Harbour (, asphalt surface) Mary's Harbour to Lodge Bay (, asphalt surface) Lodge Bay to Red Bay (, asphalt surface) Red Bay to Quebec - Labrador boundary via Blanc-Sablon (, asphalt surface) The TLH runs through dense wilderness for most of its length with no roadside services between communities. Route 500 connects with Quebec Route 389, which runs through wilderness north from Baie-Comeau to the Quebec - Labrador boundary. Cell phone reception along the Trans-Labrador Highway is limited. In the 2020 budget, the provincial government allocated $200,000 for a pre-feasibility study for a road to connect the north coast of Labrador to the Trans-Labrador Highway. Construction and development Phase I, upgrading Labrador West to Happy Valley-Goose Bay The original TLH from Labrador West (Labrador City/Wabush) to Happy Valley-Goose Bay was completed in 1992. Some sections were poorly built or in need of upgrades due to increased traffic use, particularly the section between Churchill Falls and Happy Valley-Goose Bay. In the summer of 1999, $60 million was allocated to upgrade the highway as part of the "Labrador Transportation Initiative". The Phase I section of the TLH began undergoing paving operations in 2009; by October 2011, a stretch of approximately leading east from Labrador West had been paved, as well approximately heading west from Goose Bay towards Churchill Falls. The entire Phase I section of the TLH was completed in 2015. Route 510 In 1997 the Government of Newfoundland and Labrador committed to building an extension of the TLH, connecting Happy Valley-Goose Bay with an existing isolated road network serving coastal communities on the Strait of Belle