diff --git a/lib/distribute/writers/csv-bal-with-lang.cjs b/lib/distribute/writers/csv-bal-with-lang.cjs
new file mode 100644
index 00000000..cbd69660
--- /dev/null
+++ b/lib/distribute/writers/csv-bal-with-lang.cjs
@@ -0,0 +1,49 @@
+/* eslint camelcase: off */
+const {promisify} = require('util')
+const {join} = require('path')
+const {createWriteStream} = require('fs')
+const {createGzip} = require('zlib')
+const finished = promisify(require('stream').finished)
+const {ensureDir} = require('fs-extra')
+const csvWriter = require('csv-write-stream')
+const pumpify = require('pumpify')
+
+const {prepareAdresses} = require('../../formatters/csv-bal.cjs')
+
+function createCsvWriteStream(file) {
+  return pumpify.obj(
+    csvWriter({separator: ';'}),
+    createGzip(),
+    file
+  )
+}
+
+function waitForDrain(stream) {
+  if (stream.writableLength > stream.writableHighWaterMark) {
+    return new Promise(resolve => {
+      stream.once('drain', resolve)
+    })
+  }
+}
+
+async function createWriter(outputPath, departement) {
+  await ensureDir(outputPath)
+  const adressesFile = createWriteStream(join(outputPath, `adresses-${departement}.csv.gz`))
+  const adressesStream = createCsvWriteStream(adressesFile)
+
+  return {
+    async writeAdresses({voies, numeros}) {
+      prepareAdresses({voies, numeros}, {includesAlt: true})
+        .forEach(a => adressesStream.write(a))
+
+      await waitForDrain(adressesStream)
+    },
+
+    async finish() {
+      adressesStream.end()
+      await finished(adressesFile)
+    }
+  }
+}
+
+module.exports = {createWriter}
diff --git a/lib/formatters/csv-bal.cjs b/lib/formatters/csv-bal.cjs
index 902b2d5e..80053386 100644
--- a/lib/formatters/csv-bal.cjs
+++ b/lib/formatters/csv-bal.cjs
@@ -1,5 +1,6 @@
 /* eslint camelcase: off */
 const {groupBy} = require('lodash')
+const languesRegionales = require('@ban-team/shared-data/langues-regionales.json');
 const {harmlessProj} = require('../util/geo.cjs')
 const {idsIdentifier} = require('../util/digest-ids-from-bal-uids.cjs')
 
@@ -83,17 +84,11 @@ function buildRow(voie, numero, position, {includesAlt = false, version = '1.3'}
     date_der_maj: numero.dateMAJ || '',
     certification_commune: numero.certifie ? '1' : '0'
   }
-  if (includesAlt) {
-    if (voie.nomVoieAlt) {
-      Object.keys(voie.nomVoieAlt).forEach(o => {
-        row['voie_nom_' + o] = voie.nomVoieAlt[o]
-      })
-    }
 
-    if (numero.lieuDitComplementNomAlt) {
-      Object.keys(numero.lieuDitComplementNomAlt).forEach(o => {
-        row['lieudit_complement_nom_' + o] = numero.lieuDitComplementNomAlt[o]
-      })
+  if (includesAlt) {
+    for (const {code} of languesRegionales) {
+      row['voie_nom_' + code] = voie.nomVoieAlt && voie.nomVoieAlt[code]
+      row['lieudit_complement_nom_' + code] = numero.lieuDitComplementNomAlt && numero.lieuDitComplementNomAlt[code]
     }
   }
 
diff --git a/package.json b/package.json
index 175d0773..c16a996c 100644
--- a/package.json
+++ b/package.json
@@ -34,6 +34,7 @@
   "dependencies": {
     "@ban-team/fantoir": "^0.15.0",
     "@ban-team/gazetteer": "^2.0.0",
+    "@ban-team/shared-data": "^1.2.0",
     "@ban-team/validateur-bal": "^2.17.0",
     "@etalab/adresses-util": "^0.8.2",
     "@etalab/decoupage-administratif": "^3.0.0",