It is named for its proximity to Dartmouth Avenue SE, just north of the bridge.

The 125-foot (38 m) long, 148-ton box girders were fabricated in Gary, Indiana and transported up the Mississippi River by barge in October 1963.

The current span uses a steel I-beam construction supported by two bridge piers.

Prior to August 2007, the bridge carried four lanes of traffic in each direction.

Due to favorable response, the additional lane was made permanent and currently remains in use.