National Secondary Route 239, is a road in Costa Rica between Ciudad Colón, San José province and Parrita, Puntarenas province. It is the main access road of the Puriscal canton of San José province. From Puriscal to Parrita, the road is dirt and gravel.

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National Secondary Route 239
Ruta nacional secundaria 239
Route information
Maintained by Ministry of Public Works and Transport
Length	87.505 km (54.373 mi)
Major junctions
North end	Route 22 (Ciudad Colón)
Major intersections	Route 209 Route 136 Route 137 (Road to Barbacoas) Route 318 Route 316 Route 314
South end	Route 34 (Parrita)
Location
Country	Costa Rica
Provinces	San José, Puntarenas
Highway system
National Road Network of Costa Rica
← Route 238 → Route 240

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In San José province the route covers Puriscal canton (Santiago, Mercedes Sur, San Antonio, Chires districts), Mora canton (Colón, Guayabo, Jaris, Quitirrisí districts).

Received mayor improvements in 2019, where gabion walls were constructed near Puriscal downtown to stabilize the sides of the road, similar work was done at Route 317.^[1]

On October 4, 2019, the central government announced plans to invest CRC ₡7,083,000,000 to pave with asphalt the 51.89 km gravel road between Puriscal and Parrita, due to its importance as an alternative route from the Greater Metropolitan Area to the Pacific. For forty five years, a local committee asked for this work to be done.^[2] Works will start in April 2020, with the first 10 kilometers awarded to a private contractor.^[3]

This route was severely damaged in November 2020 due to the indirect effects of Hurricane Eta.^[4]