A477 road

A477
The A477 near Kilgetty
Route information
Length	27.8 mi[1] (44.7 km)
Major junctions
East end	St Clears 51°48′59″N 4°30′18″W / 51.8163°N 4.5049°W / 51.8163; -4.5049 (A477 road (eastern end))
Major intersections	A40 A478 A4075 A4076
West end	Johnston 51°45′03″N 5°00′06″W / 51.7508°N 5.0016°W / 51.7508; -5.0016 (A477 road (western end))
Location
Country	United Kingdom
Primary destinations	St Clears Pembroke Dock
Road network
Roads in the United Kingdom Motorways A and B road zones

The A477 is a major road in South Pembrokeshire and Carmarthenshire connecting St Clears and Johnston. Its route includes the Cleddau Bridge, a former toll bridge linking Pembroke Dock and Neyland.

From the A40 in St Clears, the A477 is a trunk road with primary status as far as the Waterloo roundabout in Pembroke Dock, on the southeast side of the Milford Haven Waterway. Responsibility for the management and maintenance of this section lies with the South Wales Trunk Road Agent on behalf of the Welsh Government. From there the responsibility for maintaining the A477 is held by Pembrokeshire County Council.