The A1311 number is allocated to Marsh Way to the east of Dagenham, which is a link road between the A13 and the A1306. Whilst the route number is generally unsigned, both ends of the road display a route confirmation sign showing the number.
The road is D2 in its entirety. In its short length it runs from a dumbbell interchange in an industrial estate north over the LTS Line to end at traffic lights; it is little more than a bridge.
The road opened in 1998 along with the new A13 Thames Gateway between here and Wennington, and was temporarily part of the A13 during construction of the Marsh Way to Goresbrook section, which opened at the end of 1999. Interestingly, red-bordered bridge-strike emergency information panels still bear the "A13" label!
There is speculation that the A1311 could be drastically increased as part of proposals of the Belvedere Bridge. The crossing link would begin at the A13 Marsh Way Junction, cross the River Thames, and meet the A2016 north of Belvedere. This would increase the length of the A1311 by approximately 1.7 miles (2.7km).