Marlborough–Sarina Road

Marlborough–Sarina Road is a state-controlled district road (number 512) rated as a local road of regional significance (LRRS). It runs from the Bruce Highway in, via an inland route, to the Bruce Highway in , a distance of 243 km. It was part of the Bruce Highway until 1982.

Route description
Marlborough–Sarina Road starts at an intersection with the Bruce Highway in Marlborough. It runs southwest and west as Marlborough Road through the localities of Marlborough and Mount Gardiner, where it passes the exit to Duaringa–Apis Creek Road to the south. Next it turns northwest as Marlborough–Sarina Road through Clarke Creek, where it passes the exit to May Downs Road to the southwest. Continuing northwest through Lotus Creek it passes the exit to St Lawrence–Croydon Road to the northeast. Turning north it passes through Oxford, crossing Funnel Creek as it enters Nebo.

It passes the exit to Oxford Downs–Sarina Road to the southwest before turning northeast through Nebo and into Blue Mountain, where it passes the exit to Blue Mountain Road to the northwest. Turning east it enters Sarina Range, where it passes the exit to Koumala–Bolingbroke Road to the southeast. Turning northeast it continues through Sarina Range and into Sarina, where it ends at an intersection with the Bruce Highway.

The road provides access to the rural communities along its route and on intersecting roads. It also facilitates cross traffic between the Bruce Highway, Capricorn Highway, Fitzroy Developmental Road, and Peak Downs Highway.

History
By 1860 a track from Gladstone to Bowen included a section from Marlborough to St Lawrence, but it ran inland from St Lawrence and did not proceed along the coast to Sarina. A likely route for the section of track from St Lawrence to Nebo is attached. A few years later a track through low-lying swampy country was established from St Lawrence to Sarina and Mackay. By the late 1800s this track had become a widely used but difficult coach road. In the 1920s motorists began using this road.

In 1940 the coast road was still in poor condition and it was decided to build a sealed inland road from Marlborough to the Sarina–Clermont Road (now the Oxford Downs–Sarina Road) near the location of Wandoo pastoral station. Progress was slow, but by 1949 a track had been cleared and some bridges built. Bitumen sealing commenced in the early 1950s. Work continued until 1962, when the bitumen seal was completed, but much of it was only to a width of 3.6 metres. This was the first sealed road from Marlborough to Sarina and became part of the National Highway. Between 1962 and 1973 the widening of bitumen seal and narrow bridges was undertaken.

In the mid 1950s the road was used for the Round Australia Reliability Trials, where many cars suffered damage, particularly on undeveloped, rocky, low level creek crossings. This led to the press labelling the road a "Horror Stretch". In the 1960s several murders and shootings occurred along the road, further enhancing its "bad" reputation.

In 1974 it was decided that the coast road would be upgraded to highway standard to become part of the National Highway, and funding was transferred to that project. On 29 October 1982 the upgraded coast road was opened as part of the National Highway.

Major intersections
All distances are from Google Maps. The road is within the Livingstone, Isaac and Mackay local government areas.

Intersecting state-controlled roads
The following state-controlled roads intersect with this road:
 * Duaringa–Apis Creek Road
 * May Downs Road
 * St Lawrence–Croydon Road
 * Oxford Downs–Sarina Road
 * Blue Mountain Road
 * Koumala–Bolingbroke Road

Duaringa–Apis Creek Road
Duaringa–Apis Creek Road (Apis Creek Road) is a state-controlled district road (number 5101), rated as a local road of regional significance (LRRS). It runs from Duaringa Connection Road in to Marlborough–Sarina Road in, a distance of 104 km. It has no intersections with other state-controlled roads.

"NOTE: Apis Creek is a pastoral property in the locality of Mount Gardiner."

May Downs Road
May Downs Road is a state-controlled district road (number 5122), rated as a local road of regional significance (LRRS). It runs from Marlborough–Sarina Road in to Fitzroy Developmental Road in, a distance of 69.6 km. It has no intersections with other state-controlled roads.

St Lawrence–Croydon Road
St Lawrence–Croydon Road is a state-controlled district road (number 5124), rated as a local road of regional significance (LRRS). It runs from the Bruce Highway in to Marlborough–Sarina Road in, a distance of 44.2 km. It has no intersections with other state-controlled roads, but it connects at its eastern end with St Lawrence Connection Road.

"NOTE: Croydon Station is a beef cattle farm in the locality of Lotus Creek."

Oxford Downs–Sarina Road
Oxford Downs–Sarina Road is a state-controlled district road (number 514), rated as a local road of regional significance (LRRS). It runs from the Peak Downs Highway in to Marlborough–Sarina Road in, a distance of 27.5 km. It has no intersections with other state-controlled roads.

"NOTE: Oxford Downs Station is a beef cattle property in the locality of Nebo."

Blue Mountain Road
Blue Mountain Road is a state-controlled district road (number 5127), rated as a local road of regional significance (LRRS). It runs from Marlborough–Sarina Road in to the Peak Downs Highway in Blue Mountain, a distance of 28.4 km. It has no intersections with other state-controlled roads.

Koumala–Bolingbroke Road
Koumala–Bolingbroke Road is a state-controlled district road (number 5126), rated as a local road of regional significance (LRRS). It runs from the Bruce Highway in to Marlborough–Sarina Road in, a distance of 23.6 km. It has no intersections with other state-controlled roads.

"NOTE: Bolingbroke Homestead is on a pastoral property of the same name, on Bolingbroke Creek, in the locality of Koumala."

Linked state-controlled roads
The following state-controlled roads are linked to intersecting state-controlled roads:
 * Duaringa Connection Road
 * St Lawrence Connection Road

Duaringa Connection Road
Duaringa Connection Road is a state-controlled district road (number 515), rated as a local road of regional significance (LRRS). It runs from Duaringa–Apis Creek Road in to the Capricorn Highway in Duaringa, a distance of 0.85 km. It has no intersections with other state-controlled roads.

St Lawrence Connection Road
St Lawrence Connection Road is a state-controlled district road (number 858), rated as a local road of regional significance (LRRS). It runs from the Bruce Highway in to Macartney Street in St Lawrence, a distance of 6.9 km. It has no intersections with other state-controlled roads.