Railways:
total: 4,292 km
standard gauge: 4,047 km 1.435-m gauge (2,650 km electrified; 917 km double track)
narrow gauge: 245 km 0.760-m gauge (1995)

Highways:
total: 36,724 km
paved: 33,786 km (including 314 km of expressways)
unpaved: 2,938 km (1997 est.)

Waterways: 470 km (1987)

Pipelines: crude oil 193 km; petroleum products 525 km; natural gas 1,400 km (1992)

Ports and harbors: Burgas, Lom, Nesebur, Ruse, Varna, Vidin

Merchant marine:
total: 89 ships (1,000 GRT or over) totaling 1,005,092 GRT/1,508,614 DWT
ships by type: bulk 44, cargo 20, chemical tanker 4, container 2, oil tanker 8, passenger-cargo 1, railcar carrier 2, refrigerated cargo 1, roll-on/roll-off cargo 6, short-sea passenger 1 (1998 est.)

Airports: 61 (1998 est.)

Airports—with paved runways:
total: 56
over 3,047 m: 1
2,438 to 3,047 m: 19
1,524 to 2,437 m: 11
under 914 m: 25 (1998 est.)

Airports—with unpaved runways:
total: 5
914 to 1,523 m: 1
under 914 m: 4 (1998 est.)