Ibhuloho iSeven Mile liyisakhiwo esidumile eFlorida Keys esinwebeka olwandle oluvulekile, sixhumanisa uchungechunge lweziqhingi ezincane. Ngesikhathi sokuqedwa kwalo ngo-1982, laliyibhuloho elide kunawo wonke emhlabeni, futhi okwamanje lingenye yamabhuloho amade kunawo wonke eMelika.
Empeleni aqukethe amabhuloho amabili endaweni efanayo. Ibhuloho elidala, elakhiwa kusukela ngo-1909-1912 njengengxenye yesitimela futhi lathola umonakalo omkhulu ngesikhathi sesiphepho sosuku lwabasebenzi ngo-1935, kodwa labuyiselwa ekusetshenzisweni kwezimoto.
Kwathi ngesiphepho uDonna ngo-1960 nangomonakalo omusha wesakhiwo, kwathathwa isinqumo sokwakha ibhuloho elisha. Leli bhuloho lixhuma ukhiye ka Knight (ingxenye yedolobha iMarathon) neLittle Duck Key kumaLower Keys.
Ibhuloho elisha liyisakhiwo sebhokisi le-girder esakhiwe ngezinto ze-precast, izinto zikakhonkolo ezicindezelwe, ezihlanganisa izikhala ezingama-440. Eduze kwalesi sikhungo, leli bhuloho likhuphuka ngamamitha angama-65 ukuphakama linikeza imvume yokuphothama komkhumbi ngobungcweti. Lonke leli bhuloho lisondele kakhulu ebusweni bamanzi. Ibhuloho elisha elingaweleli iPigeon Key.
Ubude bebhuloho elisha empeleni bungamamitha ayi-35,862 noma amamayela ayi-10,931 (6,79 km), futhi mfushane kunelo lokuqala. Njalo ngo-Ephreli leli bhuloho livalwa cishe amahora angama-10,93 eMarathon ebandakanya abagijimi abayi-2,5 abahlelelwe ukukhumbula ukwakhiwa kabusha kweFlorida Keys Bridge.
I-Seven Mile Bridge yaklanywa ngabakwaFigg noMuller Ingenieros. Lesi sakhiwo saphothulwa kusasele izinyanga eziyisithupha ngaphambi kwesikhathi futhi sesithole imiklomelo eyisishiyagalombili, kubandakanya ne-Outstanding Cost Savings Innovation Award evela ku-Federal Highway Administration.