D51 connects

A3 motorway This is a list of roads designated A3. Roads entries are sorted in the countries alphabetical order. * A003 road (Argentina), a road connecting the junction with National Route 9 and Camino de Cintura to Tigre * ''A3 road (Australia)'' may refer ...

Nova Gradiška interchange to

Nova Gradiška Nova Gradiška is a town located in the Brod-Posavina County of Croatia, population 14,229 (2011). It is located in the historic region of Slavonia, near the border to Bosnia and Herzegovina. The first word in the name means ''New'', and there' ...

and Požega. The road forms two junctions to D38 state road, one in Brestovac, where D38 branches off to

Pakrac Pakrac is a town in western Slavonia, Croatia, population 4,842, total municipality population 8,460 (census 2011). Pakrac is located on the road and railroad connecting the regions of Posavina and Podravina. Name In Croatian the town is known a ...

, and another further east, in Požega, where D38 branches off to

Pleternica Pleternica is a town in the region of Slavonia, Croatia, southeast of Požega, in the Požega Valley (''Požeška kotlina''). The population of the municipality is 11,323, with 3,418 in Pleternica itself (2011). Pleternica is located at the con ...

. Between those two junctions D51 and D38 are

concurrent Concurrent means happening at the same time. Concurrency, concurrent, or concurrence may refer to: Law * Concurrence, in jurisprudence, the need to prove both ''actus reus'' and ''mens rea'' * Concurring opinion (also called a "concurrence"), a ...

. The eastern terminus of the road is near Gradište, at a junction to D53 state road to

Našice Našice () is a town in eastern Croatia, located on the northern slopes of the Krndija mountain in eastern Slavonia, 51 km southwest of regional hub Osijek. Administratively it belongs to Osijek-Baranja County. Geography Našice is located ...

(to the north) and

Slavonski Brod Slavonski Brod (), commonly shortened to simply Brod, is a city in eastern Croatia, near the border with Bosnia and Herzegovina. Being one of the principal cities in the historical regions of Slavonia and Posavina, Slavonski Brod was the 7th large ...

(to the south). The road is long. The route comprises numerous junctions to county and local roads, as well as a significant number of urban intersections, in segment of the road running through Požega. The road, as well as all other state roads in Croatia, is managed and maintained by

Hrvatske ceste Hrvatske ceste (lit. ''Croatian roads'') is a Croatian state-owned company pursuant to provisions of the Croatian Public Roads Act ( hr, Zakon o javnim cestama enacted by the Parliament of the Republic of Croatia. The tasks of the company are def ...

, a state-owned company. The D51 state road currently serves as the principal connection of the city o Požega and the A3 motorway, however there are plans to replace it with a new expressway, that is expected to comprise a significantly altered route.

Traffic volume

Traffic is regularly counted and reported by

, operator of the road.

Road junctions and populated areas

Sources

{{State roads in Croatia D051 D051 D051