From February 14, 1986[3] until the road network reform in 2000, the route was signed as national road 812.[4]
In the years 2005[5] – 2007,[6] the road was reconstructed, as part of which, among others, the surface was renewed and strengthened to a load of 115 kN/axle.[7] Also a concrete parking lane was built, 4 metres (13 ft) wide and approximately 5 kilometres (3.1 mi) long, stretching from the intersection with national road 2 in Wólka Dobryńska to the car terminal in Koroszczyn. The stretch from Koroszczyn terminal to the border crossing is accessible only for large goods vehicles and overlaps with planned course of motorway A2.[8]
Permissible axle load
From November 15, 2005[9] the entire route is accessible for vehicles with single axle load up to 11.5 tons,[10][11] while previously it was up to 10 tons.[12][13][14]
^Rusza budowa drogi nr 68 Kukuryki - Wólka Dobryńska [The construction of road no 68 Kukuryki - Wólka Dobryńska begins] (in Polish), Generalna Dyrekcja Dróg Krajowych i Autostrad, 2005-06-28, retrieved 2022-12-19
^Przebudowa drogi krajowej nr 68 [The reconstruction of national road 68] (in Polish), kukuryki.pl, 2007-01-22, archived from the original on 2007-05-24
Art. 41. 1. On public roads it is allowed to drive vehicles with a single drive axle load of up to 11.5 t, taking into account art. 41a sec. 1 and with the exception specified in art. 41b sec. 1.
2. It is allowed to introduce or establish a ban on the movement of vehicles with a permissible single drive axle load above 10 t or above 8 t:
1) along a specific public road or its section,
2) in a zone covering at least two public roads or sections thereof – hereinafter referred to as "the ban". (...)
7. It is forbidden to introduce or establish the ban on:
(...)
3) national roads or their sections, with the exception of national roads managed by mayors of cities with powiat rights. (...)