Expressway S51 or Express road S51 is a short road in Poland which connects

Olsztyn Olsztyn ( , ; german: Allenstein ; Old Prussian: ''Alnāsteini'' * Latin: ''Allenstenium'', ''Holstin'') is a city on the Łyna River in northern Poland. It is the capital of the Warmian-Masurian Voivodeship, and is a city with county rights. ...

with the express road S7 in

Olsztynek Olsztynek (german: Hohenstein in Ostpreußen) is a town in northern Poland, in Olsztyn County, in the Warmian-Masurian Voivodeship. It is the administrative seat of Gmina Olsztynek. It is part of the historic region of Masuria. Geography Olszty ...

. Its length is and is located in the

Warmian-Masurian voivodeship Warmian-Masurian Voivodeship or Warmia-Masuria Province or Warmia-Mazury Province (in pl, Województwo warmińsko-mazurskie, is a voivodeship (province) in northeastern Poland. Its capital and largest city is Olsztyn. The voivodeship has an ar ...

. The majority of Expressway S51 shadows the previous route of national road 51. Express road S51 has been continuously part of Polish plans for express roads network since 2004.Dz.U. 2004 nr 128 poz. 1334
In February 2008 the

division of

GDDKIA The General Directorate for National Roads and Motorways ( pl, Generalna Dyrekcja Dróg Krajowych i Autostrad, GDDKiA) is the central authority of national administration set up to manage the national roads and implementation of the state budget i ...

revealed the construction project of expressway S51. In September 2012 the part of the expressway forming the 12 km (7.5 mi) bypass of Olsztynek and its connection to the S7 expressway was opened to traffic whilst the finishing works to this stretch of the expressway were done over October 2012. In December 2017 the full section of expressway between Olsztynek and Olsztyn opened to traffic. In July 2019, bypass of Olsztyn (S16/S51) was finished, making S51 complete.

References

Expressways in Poland Proposed roads in Poland {{Poland-road-stub