I/13 highway (Czech Republic)
The I/13 highway () is a highway located in northwestern Czech Republic. The route leads through the Karlovy Vary, Ústí nad Labem and Liberec Regions. The road starts in Karlovy Vary at the intersection with road I/6 and ends at the Habartice/Zawidów border crossing with Poland. It has a length of . Route
The I/13 highway passes through the following cities and towns:
Karlovy Vary region 
Karlovy Vary
Ostrov
Ústí nad Labem Region 
Klášterec nad Ohří
Chomutov
Most
Bílina
Teplice
Děčín
Liberec Region 
Nový Bor, here it intersects with road I/9 from Prague
Cvikov
Chrastava
Liberec
Frýdlant

Bridges
The road crosses Jeřice in Mníšek via a 12.80 meter long bridge from 1890, which has two arches. During 1999, its reconstruction took place, when the vaults were strengthened using a reinforced concrete plate. The Smědá in Frýdlanta was crossed by a road over a wooden girder bridge that stood at the end of Máchova Street since 1862. However, it was swept away by a flood in 2010. In the northwest of the city, the road crosses over Řasnica along a 9.60-meter-long one arched bridge with a stone parapet wall. In Arnoltice, the road crosses the Bulovský stream on a bridge with two arches. It was built in 1880 and during the reconstruction it was strengthened by an inserted reinforced concrete slab with cantilever cornices. References 

I13