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The road bridge carrying the A689 over Thinhope Burn is nearer to the camera.

Burnstones Viaduct (behind the road bridge) carried the Haltwhistle to Alston branch line across the A689, Thinhope Burn and a sike draining the rough pastures west of Side House. For info about the branch line, see Link .

The geometry of the viaduct is unusual (possibly unique) in that the road arch is skewed one way to the line of the (former) railway , and the four arches that cross Thinhope Burn are skewed the other way - see the satellite image Link .

The builders of the bridge overcame this civil engineering problem by means of a deep blind arch (not visible in the photo above) between the road arch (the elliptical and rightmost arch in the photo) and the northernmost of the (semi-circular) open arches that cross the burn.

So the viaduct appears to have six arches on the west side (the road arch, the blind arch and four open arches over the burn) and only five (all open arches) on the east side. For more information about the viaduct, see Link.

See also NY6754 : Burnstones Viaduct on the (former) Haltwhistle to Alston branch line (west side), NY6754 : Burnstones Viaduct (west side), NY6754 : Burnstones Viaduct (east side), NY6754 : Burnstones Viaduct on the (former) Haltwhistle to Alston branch line (west side) (2) and NY6754 : Burnstones Viaduct (west side) - blind arch.