Geograph - photograph every grid square

The River Dulnain is a major left bank tributary of the River Spey in northeast Scotland. It rises in the eastern part of the Monadhliath Mountains and flows generally northeastward to Sluggan. Turning more easterly, the Dulnain passes Carrbridge. The final section flows east-northeast to the village of Dulnain Bridge. The river empties into the Spey after passing beneath the A95 road and the disused bridge of the former Strathspey railway.

The old packhorse bridge in Carrbridge in the Cairngorms National Park is the oldest stone bridge in the Highlands. The plaque near the viewpoint reads as follows:
“At the beginning of the eighteenth century, to the inconvenience of both travellers and local people, there was no point at which the River Dulnain could be crossed when it was in spate, and burials at the Church of Duthil were often delayed.
Brigadier-General Alexander Grant of Grant, Clan Chief, commissioned John Niccelsone, a mason from Ballindaloch, to build a bridge at Lynne of Dalrachney. Built between May and November 1717, the bridge was paid for out of stipends of the Parish of Duthill.
Its parapets and side walls were badly damaged in the 18th century and again in the famous flood of August 1829, giving the appearance it still has today.”
Category B listed. Link

Carrbridge (Scottish Gaelic: Drochaid Chàrr) is a village, about 10 km north of Aviemore in the Cairngorms National Park. Until the bypass was constructed in the 1980s, the A9 road ran straight through the village.

The village is famous for its 18th century packhorse bridge (NH9022 : Old Pack Horse Bridge at Carrbridge ) around which it developed and from which it gets its name. The Old Bridge of Carr had been built in 1717 as a foot bridge and in 1791 a new toll bridge was built for wheeled transport, carrying first the Kinveachy to Dulsie Bridge military road and from 1803, the Perth - Inverness road as well. The 'T' junction at the new bridge was a natural place for a settlement to develop. The first building near the Bridge was an Inn. The 1808 village plan showed small crofts on along the new main road (Inverness Road). It was not until the opening of the Aviemore to Inverness spur of the Highland railway line in 1898 that Carrbridge grew from being a hamlet to becoming a village popular as a tourist destination.; an old holiday guide refers to Carrbridge as, "A quiet holiday village on the fringes of nowhere in particular". By the late 1950s Carrbridge was booming as the first ski-centre in Scotland.

Link Carrbridge Community page

Listed buildings and structures are officially designated as being of special architectural, historical or cultural significance. There are over half a million listed structures in the United Kingdom, covered by around 375,000 listings.
Listed status is more commonly associated with buildings or groups of buildings, however it can cover many other structures, including bridges, headstones, steps, ponds, monuments, walls, phone boxes, wrecks, parks, and heritage sites, and in more recent times a road crossing (Abbey Road) and graffiti art (Banksy 'Spy-booth') have been included.

In England and Wales there are three main listing designations;
Grade I (2.5%) - exceptional interest, sometimes considered to be internationally important.
Grade II* (5.5%) - particularly important buildings of more than special interest.
Grade II (92%) - nationally important and of special interest.

There are also locally listed structures (at the discretion of local authorities) using A, B and C designations.

In Scotland three classifications are also used but the criteria are different. There are around 47,500 Listed buildings.
Category A (8%)- generally equivalent to Grade I and II* in England and Wales
Category B (51%)- this appears generally to cover the ground of Grade II, recognising national importance.
Category C (41%)- buildings of local importance, probably with some overlap with English Grade II.

In Northern Ireland the criteria are similar to Scotland, but the classifications are:
Grade A (2.3%)
Grade B+ (4.7%)
Grade B (93%)

Read more at Wikipedia Link