LE 19 JUILLET MCMXXVIII
LE PONT DE TOURNELLE
A ETE OUVERT A LA CIRCULATION
GASTON DOUMERGUE
ETANT PRESIDENT DE LA REPUBLIQUE FRANCAISE
ANDRIEN TARDIEU - MINISTRE DES TRAVAUX PUBLICS
GEORGES LEMARCHAND - PRESIDENT DU CONSEIL MUNICIPAL DE PARIS
PAUL FLEUROT - PRESIDENT DU CONSEIL GENERAL DE LA SEINE
HENRI WATIER - DIRECTEUR DES VOIES NAVIGABLES ET PORTS MARITIMES
HENRI GIRAUD - DIRECTEUR GENERAL DES TRAVAUX DE PARIS
LE PONT A ETE CONSTRUIT PAR LUCIEN DEVAL - INGENIEUR EN CHEF DES PONTS ET CHAUSSEES
HENRI LANG - INGENIEUR DES PONTS ET CHAUSSEES
JOSEPH DETRAIN - INGENIEUR DES TRAVAUX PUBLICS DE PARIS
PIERRE ET LOUIS GUIDETTI - ARCHITECTES
PAUL LANDOWSKI - STATUAIRE
JOSEPH ET JULIEN COMBE - ENTREPRENEURS ET CARRIERS

The sign is on the statue/obelisk of Saint Genevieve and on it are details of the personalities who were involved in the construction of the bridge.

The figure of Saint Genevieve was made by the sculptor Paul Landowski and on her back stands the sign, was photographed that day Click for a larger image Click for a larger image

The bridge was photographed on the same day Click for a larger image Click for a larger image

More details can be found on another sign found on the bank of the Seine Click for sign's details

Translation of the text on the sign:
JULY 19 MCMXXVIII
THE TURNELLE BRIDGE
HAS BEEN OPENED TO TRAFFIC
GASTON DOUMERGUE
BEING PRESIDENT OF THE FRENCH REPUBLIC
ANDRIEN TARDIEU - MINISTER OF PUBLIC WORKS
GEORGES LEMARCHAND - PRESIDENT OF THE PARIS MUNICIPAL COUNCIL
PAUL FLEUROT - PRESIDENT OF THE SEINE GENERAL COUNCIL
HENRI WATIER - DIRECTOR OF WATERWAYS AND SEAPORTS
HENRI GIRAUD - GENERAL DIRECTOR OF PARIS WORKS
THE BRIDGE WAS CONSTRUCTED BY LUCIEN DEVAL - CHIEF ENGINEER OF BRIDGES AND ROADWAYS
HENRI LANG - ROADS AND BRIDGES ENGINEER
JOSEPH DETRAIN - PUBLIC WORKS ENGINEER IN PARIS
PIERRE AND LOUIS GUIDETTI - ARCHITECTS
PAUL LANDOWSKI - STATUARY
JOSEPH AND JULIEN COMBE - ENTREPRENEURS AND CARRIERS