|Length:||7.7 miles (12.4 km)|
|Meets:||A5104, A494, A550, B5441, B5126, A548|
|Route outline (key)|
The B5129 is a medium-length B-road in eastern Flintshire.
The road starts on the A5104 (former A55) on the edge of Saltney, essentially a suburb of Chester. It heads north along Saltney Ferry Road, crossing the Chester to Holyhead railway line before reaching the River Dee. The ferry has gone but a pedestrian footbridge now spans the river.
The B5129 heads west (downstream) along the Dee for a short distance (although the river cannot actually be seen) before turning away. It crosses the railway line again before skirting Hawarden Airport. At a roundabout at one of the entrances to the airport it turns right. From a map it appears that the airport was built on top of the B5129 and so the road was rerouted round the edge. This is not actually the case: the B5129 has always gone this way.
The B5129 now heads northwest along a dead-straight road through Sandycroft and into Pentre, part of Queensferry. The road bends to the left to reach a roundabout intersection with the A494 and A550, although originally the road continued straight on.
The B5129 leaves the roundabout and quickly meets the B5441 at traffic lights. Our road continues northwest along the same dead-straight road into Shotton, then goes under the Wrexham to Bidston Railway Line by Shotton High Level Station.
All this urban area is essentially part of Connah's Quay. The civic centre is soon passed on the left after crossing the Wepre Brook. Continuing along the High Street the B5126 is met, with different junctions for outbound and inbound traffic. The road runs parallel to the Chester to Holyhead railway line although this is not visible. The towers and cables of the Flintshire Bridge, carrying the A548 over the River Dee, are visible to the right but only from time to time. After passing Deeside College the B5129 meets the A-road. They run parallel for a short distance before our road ends at a dumbbell GSJ.