John Dunn Bridge, Steel bridge in Arroyo Hondo, New Mexico.

John Dunn Bridge is a steel structure that crosses the Rio Grande near where the Rio Hondo flows into it, connecting both banks with its truss design. The bridge provides access to hiking trails, fishing spots, and water routes along the river.

John Dunn built this bridge in 1908 to carry travelers and mail into Taos, operating it as a toll facility with a one dollar charge per person. It became a key point connecting the region to Taos in the early 1900s.

John Dunn charged $1 per person to cross and less for livestock, and his nearby hotel served travelers fresh fish from the Rio Grande and milk from his own cow. Since 1912, when New Mexico bought the bridge, crossing has been free. The name John Dunn Bridge Road and County Road B-007 still mark the route.

It sits three miles west of Arroyo Hondo on a gravel road, so a vehicle is necessary to reach it. Visitors should come prepared for changing road conditions and bring gear suited to hiking or water activities.

A river section known as the Taos Box starts at this bridge and stretches for about 18 miles, offering one of the region's most challenging whitewater routes. The narrow canyon walls and fast rapids here attract experienced paddlers from all over.