The　development　of　probabilistic　corrosion　hazard　maps　for　reinforced　concrete　infrastructure　exposed　to　airborne　chlorides　in　coastal　regions　is　addressed　in　the　present　work,　with　special　attention　to　bridges.　The　methodology　developed　in　this　study　consists　of　three　steps.　Initially,　spatial　distribution,　construction　year,　and　main　features　of　the　existing　infrastructure　are　examined　together　with　the　general　characteristics　of　the　study　area.　The　second　step　deals　with　the　elaboration　of　relevant　environmental　data,　including　the　direction　and　height　of　sea　waves,　sea　salinity,　temperature,　relative　humidity,　rainfall,　speed　and　direction　of　wind,　and　chloride　deposition　rates.　Corrosion　hazard　maps　are　obtained　next,　wherein　the　corrosion　current　density　is　selected　as　an　intensity　measure.　Particularly,　they　are　elaborated　for　an　assigned　probability　of　exceedance　given　the　exposure　time　window　and　concrete　mixture.　The　presented　methodology　is　applied　to　develop　probabilistic　corrosion　hazard　maps　for　reinforced　concrete　bridges　exposed　to　the　marine　atmosphere　at　Oahu　Island　(Hawaii,　United　States).　For　this　case-study,　it　is　also　discussed　the　correlation　between　the　actual　condition　rating　of　the　existing　concrete　bridges　and　the　estimated　corrosion　hazard　levels.　©　2024　Informa　UK　Limited,　trading　as　Taylor　&　Francis　Group.