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Location Map ( geo)
Cameraicon.png View gallery (8)
From:  Kilbirnie (NS315546)
To:  Stevenston (NS270421)
Via:  Dalry, Ardrossan
Distance:  14.7 miles (23.7 km)
Meets:  A760, B777, B784, A737, B781, A78, A738, B714, A738
Former Number(s):  B783, A739, A738
Highway Authorities

North Ayrshire

Traditional Counties


Route outline (key)
B780 Kilbirnie - Ardrossan
(A738) Eglinton Road, Ardrossan
B780 Ardrossan – Stevenston
B780 (Branch) Roche Way, Dalry
B780 (Branch) Harbour Street, Ardrossan


The B780 is a medium-length B-road in North Ayrshire, running from Kilbirnie to Stevenston. It is quite hilly too; the northern section is more fun as it goes though the hills.

Northern section: Kilbirnie – Ardrossan

The road starts at a roundabout on the A760 in the centre of Kilbirnie. It heads south through town and shortly meets a mini-roundabout where the road ahead is the B777 and the B780 bears right. A short distance further on the road enters open country and runs across the fields to meet the B784. Shortly afterwards the road becomes urban once more. It passes the DSM factory and crosses the Rye Water to reach Dalry. The road continues ahead along Roche Way to reach the A737 at traffic lights but the mainline of the B780 had to TOTSO west beforehand.

Near Dalry

The through route heads west along James Street then TOTSOs right at a T-junction. It then zigzags across undulating terrain to reach Munnoch Reservoir where it TOTSOs left; the road ahead is the B781. The road then skirts the reservoir and then a second as it runs beneath Busbie Moor with its easily visible wind farm. It heads south along a valley before climbing out and reaching a roundabout on the A78 Ardrossan bypass. The road continues south into town to reach the A738, which is crossed via a short multiplex between adjacent sets of traffic lights.

Southern section: Ardrossan – Stevenston

Dalry Road, Ardrossan

This section is basically the former A738 though the three towns, so the description of the road is taken from that road's article. This section of the B780 is dead straight, though it is slightly hilly. In Ardrossan Town the road reaches a set of traffic lights. From here it has another spur as it continues ahead along Harbour Street, apparently ending at the railway level crossing. However, the mainline TOTSOs left along Princes Street and crosses the Ardrossan Branch Line to the ferry port at another level crossing. Now the road is on Ardrossan South Bay.

The B714 then takes the bay road while our road turns away from the sea and heads to Saltcoats. On the way towards Stevenston, it has a roundabout in Saltcoats Town Centre.

Saltcoats has been heavily modernised. We pass the Sainbury's supermarket, where you can park for the superb West End Café. We pass the opened-out Saltcoats station and we collect the B714 from the seaside; the B780 now sees the sea again, albeit at a distance. It also has green fields from the school we're passing.

You now enter Stevenston and its small town centre - this is the smallest of the Three Towns (at least for its centre) and so it goes quite quickly. Very soon you arrive at the A738 - this was where the A738 used to multiplex with the A78 but now, though, marks the end of the B780. The options are left for Saltcoats, right for the rest of Stevenston and the A78.


The B780 originally ran between the A737 in Dalry and the A78 (now A738) in Ardrossan. In 1935 the road was extended north along the ex-B783 to reach Kilbirnie.

The southern section of the B780, through Ardrossan, was formerly the A738 (although Glasgow Street was the A739 until 1935). This section was renumbered in 2005 to the current number.

Original Author(s): A Beaton

Related Pictures
View gallery (8)
B780 - Geograph - 1139726.jpgArdrossan Princes St level crossing.jpgChapelhill Roundabout - Geograph - 1847348.jpgGlasgow Street (C) Thomas Nugent - Geograph - 3425819.jpgMain Street, Kilbirnie (C) Leslie Barrie - Geograph - 3982466.jpg
Other nearby roads
B700 – B799
B700 • B701 • B702 • B703 • B704 • B705 • B706 • B707 • B708 • B709 • B710 • B711 • B712 • B713 • B714 • B715 • B716 • B717 • B718 • B719
B720 • B721 • B722 • B723 • B724 • B725 • B726 • B727 • B728 • B729 • B730 • B731 • B732 • B733 • B734 • B735 • B736 • B737 • B738 • B739
B740 • B741 • B742 • B743 • B744 • B745 • B746 • B747 • B748 • B749 • B750 • B751 • B752 • B753 • B754 • B755 • B756 • B757 • B758 • B759
B760 • B761 • B762 • B763 • B764 • B765 • B766 • B767 • B768 • B769 • B770 • B771 • B772 • B773 • B774 • B775 • B776 • B777 • B778 • B779
B780 • B781 • B782 • B783 • B784 • B785 • B786 • B787 • B788 • B789 • B790 • B791 • B792 • B793 • B794 • B795 • B796 • B797 • B798 • B799
Earlier versions: B705 • B706 • B707 • B708 • B713(E) • B713(W) • B714 • B715 • B716 • B724 • B727 • B730 • B734
B735 • B736 • B739 • B743 • B744 • B746 • B752 • B761 • B762 • B763 • B765 • B773 • B783 • B785 • B789 • B791

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