Emergency services dealt with a single vehicle accident at Windy Corner this afternoon (Friday).
A red Volkswagen Golf is believed to have turned onto its roof, although there were no serious injuries.
The road between Creg-ny-Baa and Brandywell was closed for about 90 minutes, until around 3pm.
Mixed views from businesses as Manx Grand Prix returns to extended schedule
Hospitality sector reports tourism boost, but some attractions see visitor numbers drop during road closures
Mountain Road to close for installation of temporary speed limit signs
Closure in place between Ramsey and Creg-ny-Baa from 10am to 12pm
2025 MGP/Classic TT schedule offers more flexibility, says clerk of the course
But Gary Thompson says marshals urgently needed for first day
Eight-year-old walking Raad ny Foillan for charity
Marlo Lister hoping to raise money for the Manx Stroke Foundation