| Arkansas 7/51 Bridge | |
| Location: | AR 7/51, Arkadelphia, Arkansas |
| Coordinates: | 34.1231°N -93.0464°W |
| Builder: | Luten Bridge Co. |
| Architecture: | Parker truss |
| Added: | February 1, 2006 |
| Area: | less than one acre |
| Refnum: | 05001591 |
The Ouachita River Bridge is a steel Parker through truss bridge carrying Arkansas Highway 7 and Arkansas Highway 51 across the Ouachita River at Arkadelphia, Arkansas. The trusses of the bridge were manufactured in 1933 by the Luten Bridge Company, and were first used to carry Highways 7 and US 67 over the Caddo River. That bridge was disassembled in the 1950s, and the trusses were stored until used to build this bridge in 1960. The main trusses span 202feet, while the approaches combined measure 301feet, giving the bridge a total length of 503feet. The deck is concrete laid on steel girders and is 24feet wide. It is one of two crossings of the Ouachita River in Clark County.[1]
The bridge was listed on the National Register of Historic Places in 2006. It is scheduled to be replaced in late 2018.[2]