A cikin karni na 19th da Rasha arewacin babban birnin kasar - St. Petersburg - yana da matsaloli tare da kai links tsakanin tsakiyar birnin tubalan da hagu-banki na Vyborg gundumar a dama banki na Neva. Pontoon gadoji, lokaci-lokaci halakãsu da daskare-up, tare da aiki ba zai iya jimre a karshen birnin majalisa yanke shawarar gina babban birnin na gada a haɗa shi da Foundry Avenue daga Vyborg gefe. Daftarin yi wa'adi za a wuya, tun da nisa tsakanin Neva bankuna ya mita 400, kuma zurfin kai 24 mita.
A 1871, wata gasar da aka sanar da mafi kyaun aikin, mai jigo "Foundry Bridge." Sunan nan gaba gada ne saboda ganin cewa ya ya kamata ya zama cigaba ne na Foundry Avenue. A cikin shekaru biyu, daban-daban kamfanoni-kwangilar da aka gabatar game da ashirin ayyukan. A farko kyauta lashe Birtaniya gada-gini m "Westminster", wanda ya miƙa mun gwada da m gada na hudu Al'arshinSa, baka, tare da biyu sassan na takardar saki. Injiniyoyin miƙa billeting Foundry Bridge, wanda saki da aka za'ayi da wani mai sauqi qwarai makirci - juya. Da farko shike wannan aikin ba, duk da haka, daya da rabi shekara, ma'aikatar layukan dogo na yin wasu comments game da gina gada goyon bayan da ya bayar da shakku game da AMINCI na lissafin finasovogo tabbacin shirin.
The "Westminster" an bita, kuma suka ƙaryata, kuma Foundry Bridge mika kanar A.E.Struve. A karkashin yarjejeniyar, da gina gada da aka ƙaddara ta a shekaru hu] u. The kwangila da aka sanya hannu, ko da yake wasu abubuwa tãyar da tambayoyi daga jami'an gwamnati. Struve nace a kan sayan karfe Tsarin a Ingila, ko da yake Rasha da baƙin ƙarfe ba muni, kuma har ma fiye da Turanci a kan wani yawan Manuniya. Duk da haka, Jinkirtãwa gina gada da aka ba zai yiwu, saboda haka, dage farawa na farko da dutse a watan Agusta 1875 - da Foundry Bridge samu a farkon a rayuwa. Magina aka nan da nan da fuskantar manyan matsaloli. Karkashin ruwa ƙasa yadudduka a cikin wannan ɓangare na Neva sun kaucewa m ga shigarwa na dogayen sanda, lãka talakawa ba ci gaba da dutse, da kuma kafuwar aka tafiya.
Share fage da m taurin ya goma zurfin mita, amma shi ne wani m adadin abu domin kafuwar tridtsatimetrovoy zurfin zai tsayawa ba wani kimomi. Yana da aka haka ya yanke shawarar janye farko 'yan yadudduka da manufa na akwatin - da m tsarin da karfe zanen gado welded a wani shãfe haske Silinda ko Sphere. Duk da haka, tare da ma caissons juya waje, ba duk abin da aka santsi, da kogin gado da aka zahiri barjat babbar boulders da sunken jiragen ruwa. Don shigar da caisson a dama zurfi, shi wajibi ne don cire ta a ƙarƙashin gado, amma shi ya kasance wani jahannama daga wani aiki. Ma'aikata kashe a kan gada a kowace rana installing da dama goyon bayan. Ƙarshe da dama caissons aka ko ta yaya shigar, bayan da ya fara aiki loading su da duwatsu. The kudin na gada saboda da m fasaha matsaloli tashe a rabin. Duk da haka, da yi ne a hankali dawo zuwa wasu semblance kari, nan da nan ya yiwu in ga wasu sakamako. Yana da aka tashe ta biyar arched Al'arshinSa shida aiki a matsayin daidaitacce na gada. A cikin watan Satumba 1879, yi da aka kammala tare da wani biyu-wata da bata lokaci ba, da kuma A.E.Struve aka sanya da daraja na Major General.
Yau, saki Foundry Bridge - a fi so gaban Petersburgers da baƙi daga arewacin babban birnin kasar.