Almirante Sarmento Rodrigues Bridge, also known as the Highway Bridge of Barca d'Alva () is a road bridge over the Douro river, located near the village of Barca d'Alva in the Guarda District, Portugal, around west of the border with Spain. It carries national route N221.
The bridge was designed in 1955 by Edgar Cardoso. It is named for Portuguese naval officer and colonial administrator Sarmento Rodrigues.