The N-145 is a Spanish national road in Catalonia, Spain.

It is 9.7 km (6.0 mi) long and runs through the comarca of Alt Urgell, parallel to the Gran Valira.

[1] These works consisted of asphalting part of the road, the construction of a false tunnel to prevent the fall of rocks near the customs office and the construction of the Túnel del Bordar near Anserall.

With the construction of this tunnel, access to Anserall has been improved and renewed.

The interior of the tunnel has a capacity for three lanes, although there are only two, one for each direction, with a safety separation in the middle.