At Testo's Roundabout with the A184 (for Gateshead and The Boldons), the A19 originally ended as the A1 took over to run through the Tyne Tunnel, before that classification became assigned to the Newcastle Western Bypass from the Angel of the North to Kingston Park. To the east the A19 now approaches the Tyne Tunnel, where a second tunnel has recently been completed to relieve traffic congestion. There is a limited access junction (from the north) for Hedworth, and the road is crossed by the Green Line of the Tyne and Wear Metro. It meets the A194 (for South Shields) at an interchange. At the Jarrow Interchange, there is a roundabout for the A185 (for Hebburn) and the B1297 at the start of the single-carriageway £13 million Tyne Tunnel, opened in October 1967 as the A108. The former route north of Sunderland is now the A1018.