Puente del Priorato: A Roman-Origin Bridge in Cihuri, Spain
Site at a Glance
- Rating
- 4.6
- Popularity
- Low
- Country
- Spain
- Primary era
- Classical
- Eras represented
- Classical, Medieval
- Civilizations
- Crown of Castile, Roman
- Site type
- Infrastructure
- Remains
- Bridge
On this page11 sections
History
Puente del Priorato, also known as the Roman Bridge of Cihuri, is a Roman-origin stone bridge in Cihuri, Spain, crossing the Tirón River and generally dated to the late first or early second century AD. Its later history was closely connected with the Monastery of San Millán de la Cogolla and the development of Cihuri as a local centre.
Roman and medieval phases
The bridge was remodelled during the Middle Ages, probably in the thirteenth century. This work altered parts of the earlier structure and adapted the crossing to the growing importance of the route through Cihuri. The medieval phase is reflected in several elements of the surviving masonry and passageway.
The priory and the crossing
In 947, Fernán González, a tenth-century Castilian count who helped consolidate Castile politically, granted Cihuri and the disappeared Monastery of San Juan de Cihuri to the Monastery of San Millán de la Cogolla, an important medieval monastic centre in La Rioja. The grant authorized settlement, construction, and expansion beside the Tirón River, and later lords and monarchs reaffirmed it.
San Millán’s authority increased the bridge’s importance as a crossing for movement through Cihuri. The grants contributed to the village’s development as a commercial and administrative centre, while the monastery established a priory, a religious and administrative house governed by a prior under an abbot’s authority. The bridge consequently acquired the name Puente del Priorato. Local monastic activity included wool processing and shearing beside the river.
From historical route to protected monument
A geographical and historical dictionary published in the mid-nineteenth century described the bridge as well preserved and as a route used by monks travelling to the monastery’s possessions in Cihuri. At the beginning of the twentieth century, authorities considered reusing it for regular road traffic, but instead built a second bridge parallel to it upstream. The arrangement helped preserve the older crossing.
Puente del Priorato was declared a Monument of Historical-Artistic Interest in 1979 and a Property of Cultural Interest in the category of Monument in 1982, with the latter declaration issued on 26 February. Repairs in 1989 replaced deteriorated ashlar blocks, cleaned the principal arch, and restored part of the parapet. The bridge remains adapted for cars and other vehicles, and cases of vandalism have been reported.
Remains
Layout and construction
The surviving bridge is an approximately 27.83-metre-long stone-arch structure built mainly from sandstone, probably quarried locally. Its three-arch arrangement crosses the Tirón River with a principal central opening, a pointed arch on the left bank, and a smaller semicircular opening on the right bank. The present paving belongs to a later phase rather than to the original construction.
Arches and masonry
Principal arch
The principal arch is semicircular but slightly pointed in profile. It has a double ring of voussoirs, wedge-shaped stones arranged in two concentric vaulted rows. One row aligns with the faces of the masonry, while the other lies deeper within the structure. The arch rests on the natural rock of the river’s right bank.
Bank arches
The arch on the left bank is pointed and has a single ring of voussoirs. Its upstream side rests on a cutwater, a projecting structure that divides and deflects the current, while a projecting spur supports it downstream. Both features point to the medieval remodelling. The third arch, on the right bank, is semicircular and acts as a relieving opening, a smaller arch that reduces the load on the main structure or allows more water through. Beginning about one metre above the masonry base, it appears to retain its original Roman form.
Evidence of successive building phases
The Roman origin is reflected in the dimensions of most ashlar blocks, which follow the Roman foot, a standard ancient Roman building measure. The central arch’s position set back from the wall faces and the bridge’s proportions also correspond broadly with Roman construction models. Irregular ashlar blocks in the wall faces and the medieval character of the passageway belong to the later rebuilding.
Associated remains
The Casa del Priorato, a seventeenth-century building connected with the priory, stands near the bridge. Near the banks of the Tirón, in the area used for wool shearing, probable seventeenth-century watering troughs and Roman ceramic remains have also been found.
