Primorskaya railway was located near Saint Petersburg and it lay on the route Saint Petersburg, Sestroretsk, Beloostrov. The railway was served by steam locomotives from the moment of opening and before joining to Oktyabrskaya railway in 1925.

Primorskaya Line
Legend
35.1 Dyuny 34.1 Shkolnaya 33.3 Saint Petersburg – Sestroretsk – Beloostrov to Beloostrov 33.1 Zavodskaya sestra crossover Planned ferry line Miller's pier Gulf of Finland 32.7 Kurort 31.4 Sestroretsky Kyrort 31.3 Trackside 31.2 Miller's line to former Sestroretsk station 31.1 Yermolovsky prospect Sestroretsk 31.0 Yermolovskaya 30.7 Sestroretsk armory 30.2 Voskov street Sestroretsk Dubki horse-iron road (1847-bf 1870) Dubkovsky pier – Sestroretsk armory 35.1 Sestroretsk 29.7 Liteyny bridge Vodoslivnoy channel Saint Petersburg – Vyborg 29.4 Sestroretsky crossover M10 33.3 Razliv 26.5 Tarkhovka 26.3 Tarkhovskaya street Tarkhovka 26.1 Alexandrovskaya 24.0 Gorskaya 23.9 Gorskaya road interchange KAD 22.1 Kaupilovo 21.1 Aerodromnaya street to Gorskaya 23.3 Export goods for SPb Dam 23.3 Lisy Nos, before 1928 to Kronstadt b. 1928 Gulf of Finland 20.3 Lisy Nos 18.8 Morskaya to North-West Thermal Power Plant 15.2 Olgino 15.1 Konnolakhtinsky prospect Olgino 17.1 Lakhta (before 1894) 12.1 Granichnaya street Lakhta 200-metre pile bridge 1894–1924 10.5 Lakhtinsky crossover built 1925f over Lakhtinsky Razliv Shunting loop Dum (built 1894) later Yakhtennaya station (built 1980s) 8.0 Shunting loop 2 verst (built 1894) 6.6 Planerny crossover Planernaya st. Kirovskaya Small October railway 5,4 Staraya Derevnya 5.3 Torfyanaya doroga 4.4 Serebryakov pereulok 3.5 Akademik Shimansky street 1.3 Chyornaya rechka crossover 1.0 Novaya Derevnya Severny factory 0.8 Ozerki line to Ozerki, Kolomuagi, Skachki Tovarnaya line to Serdobolsky, Flyugov post, Finland Station SPb – Sestroretsk – Beloostrov to Flyugov post, Finland Station, Lanskaya Chyornaya Rechka 0.6 Kolomyajskу bridge Primorsky - Goods (1904-1924) 0.0 Primorsky (1823-1924) to Summer Garden (Neva) Distances in kilometers Railway line consists of single-track line tracksides
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Many articles refer to the "Joint-stock company of the Prinorskaya St.-Peterburg-Sestroretsk railway". It is not known whether the misspelling of Primorskaya actually appeared in the company's title. The title implies that the western terminus of the railway was intended to be Primorsk but it did not reach Primorsk within the lifetime of the company.

The line was constructed in three parts:

• Ozerki line, opened 23 July 1893
• Primorskaya Line
  • first stage opened 12 July 1894
  • second stage opened 31 October 1894
  • third stage opened 26 November 1894
• Tovarnaya line, opened May 1904

The route of the line in the Saint Petersburg area is difficult to follow because various changes were made between 1894 and 1928. Of particular note was the closure of Primorsky Rail Terminal (due to flooding) in 1924 and the re-routing of trains to Finlyandsky Rail Terminal.

For technical needs and for travel of trains technical stops were necessary.

In the late 19th and early 20th centuries, steam tram engines were used, as shown below.

• Train of the Seaside Sestroretsk railway, pre-1917
• Train at Dyuny railway station, 1900s
• Train on Zavodskaya sestra crossover, 1900s

• Pyotr Avenarius (1843-1909) engineer of the line