Autovía A-21

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Autovía A-21 shield}}

Autovía A-21
Autovía del Pirineo
Route information
Length: 110 km (70 mi)
Major junctions
From: Pamplona
To: Jaca
Highway system
Autopistas and autovías in Spain

The Spanish Autovía A-21 is a proposed highway between Jaca, in Aragon, and Pamplona, in Navarre.

It follows or is an upgrade of the N-240 and will link the Autovía A-15 east of Pamplona with the Autovía A-23 at Jaca providing a link through the southern Pyrenees and the pass from France to Zaragoza.


There is a great difference in the percentage of completion between the Navarre Region and the Aragon Region. Navarre has completed its sections while only two out of the eight sections in Aragon (totalling 8.3 km) are open. Two more sections (13 km) are in progress in Aragon but works has been suspended on two sections (10 km) and has not even started on two others (18.2 km).

Road Number Description Status (2013) Kilometres
A-21 Noáin -Monreal Open (2006) 12
A-21 Monreal - Izco Open (2009) 8.6
A-21 Izco - Venta de Judas Open (2010) 7.2
A-21 Venta de Judas - Yesa Open (2012) 10
A-21 Yesa- Border of Navarra/Aragón Open (2012) 6.5
Border of Navarra/Aragón - Tiermas Open (2013) 4.4
Tiermas - Sigüés Project halted 6.57
Sigüés - A-1601 Open (2015) 2.5
A-21 A-1601 - Barranco de Colladas Open (2011) 2.9
A-21 Barranco de Colladas - Fago (Border of Zaragoza/Huesca) Open (2011) 5.4
Fago (Border of Zaragoza/Huesca) - Puente la Reina de Jaca Project halted 11.63
Puente la Reina de Jaca - Santa Cilia Started but suspended until 2017 7.2
Santa Cilia - Jaca (A-23) Under construction with no opening date 9.0