| Río Hondo Bridge | |
| Location: | Highway 156, km 26.9 Barrio Río Hondo Comerío, Puerto Rico |
| Coordinates: | 18.2087°N -66.243°W |
| Map Alt: | Locator map |
| Area: | 92.7m2 |
| Built: | 1881 (original construction) 1908 (installed at final site) |
| Customarchitect Title: | Engineer |
| Customarchitect: | Rafael Nones |
| Architecture: | Double Warren pony truss |
| Added: | July 19, 1995 |
| Refnum: | 95000842 |
| Mpsub: | Historic Bridges of Puerto Rico MPS |
| Nocat: | yes |
| Designated Other1 Name: | Puerto Rico Historic Sites and Zones |
| Designated Other1 Color: |
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| Designated Other1 Num Position: | bottom |
| Designated Other1 Number: | 2000-(RC)-22-JP-SH |
| Designated Other1 Abbr: | RNSZH |
| Designated Other1 Date: | March 15, 2000 |
The Hondo River Bridge (Spanish; Castilian: Puente del Río Hondo) was a historic bridge over the Hondo River in Comerío municipality, Puerto Rico. As of 1995, it was the oldest bridge truss in Puerto Rico, employing a double Warren pony truss design and unique open web transverse joists. It was originally installed in 1881 as one of three spans of the Reyes Católicos Bridge over the Plata River on the San Juan–Mayagüez road, using metal parts fabricated in Belgium. After a hurricane destroyed one of the other spans of the Reyes Católicos Bridge in 1899, this surviving span was moved and re-installed on new abutments under the supervision of engineer Rafael Nones in 1908, as part of the Comerío–Barranquitas road.[1] It was finally removed and replaced in 2001.[2]
The bridge was added to the U.S. National Register of Historic Places in 1995 and to the Puerto Rico Register of Historic Sites and Zones in 2000.[3] [4]