The Southern Main Road is a major road in Trinidad and Tobago

Trinidad and Tobago

Trinidad and Tobago officially the Republic of Trinidad and Tobago is an archipelagic state in the southern Caribbean, lying just off the coast of northeastern Venezuela and south of Grenada in the Lesser Antilles...

 running from Curepe

Curepe

Curepe is a town in the East-West Corridor of Trinidad and Tobago. It is located west of St Augustine and east of St Joseph. Curepe abuts the St Augustine campus of the University of the West Indies. Many of the students attending the university live in Curepe.Curepe began as a crossroads, where...

 in the north through Chaguanas

Chaguanas

The Borough of Chaguanas is the largest municipality 2000 census) and fastest-growing town in Trinidad and Tobago. Located in Central Trinidad about south of Port of Spain. It grew in size due to its proximity to the Woodford Lodge sugar refinery. It remained a minor town until the 1980s when it...

, Couva

Couva

Couva is a town in west-central Trinidad, south of Chaguanas and north of Claxton Bay and San Fernando. The Greater Couva area includes the Point Lisas Industrial Estate and the Port of Point Lisas. Couva's southern boundary is at the town of California, and to the north Couva stretches to McBean...

 and San Fernando

San Fernando, Trinidad and Tobago

The City of San Fernando with a population of 55,419 according to the 2000 census, is the larger of Trinidad and Tobago's two cities and the second largest municipality after Chaguanas. It occupies 18 km² and is located in the southwestern part of the island of Trinidad...

 to Point Fortin

Point Fortin

Point Fortin, the smallest Borough in Trinidad and Tobago, is located in southwestern Trinidad, about southwest of San Fernando. After the discovery of petroleum in the area in 1906 the town grew into a major oil-producing centre. The town grew with the oil industry between the 1940s and 1980s,...

 in the south.

The Southern Main Road was the major north-south road in Trinidad until 1957 when the Princess Margaret Highway (now the Uriah Butler Highway

Uriah Butler Highway

The Uriah Butler Highway, sometimes referred to as UBH, is one of the major north-south highways in Trinidad and Tobago, named after Tubal Uriah Butler. It runs from Champs Fleur to Chaguanas where it meets the Sir Solomon Hochoy Highway. It crosses the Churchill-Roosevelt Highway at Valsayn...

) was built to more directly connect Chaguanas with the Churchill-Roosevelt Highway

Churchill-Roosevelt Highway

The Churchill–Roosevelt Highway is the major east-west highway in Trinidad and Tobago. It runs for from Barataria in the west to Wallerfield in the east where it ends in the former US Army base on Fort Read. It crosses the north-south Uriah Butler Highway at Valsayn...

, and in 1970s when the Sir Solomon Hochoy Highway

Sir Solomon Hochoy Highway

The Sir Solomon Hochoy Highway is the major north-south highway in Trinidad and Tobago. It connects Chaguanas with San Fernando. It meets the Uriah Butler Highway at Chaguanas. The highway was named for Solomon Hochoy, the first Caribbean-born Governor of Trinidad and Tobago and the first...

was built to connect Chaguanas with San Fernando. The Southern Main Road remains the major road connecting San Fernando with Point Fortin, but plans are underway to extend the Sir Solomon Hochoy Highway to Point Fortin.

The Southern Main Road makes it way through communities such as Chaguanas, Freeport, St. Mary's, McBean, Couva, Pt. Lisas, California, Claxton Bay, Marabella, and Vistabella in Central Trinidad, before passing into San Fernando. In the areas just listed, the Southern Main Road (sometimes simply referred to by the locals as "de main road") contains most of the business establishments.