To the Senate and House of Representatives:
I beg leave to call the attention of Congress to the accompanying reports--one from the engineer selected under the act of the 14th July last to take charge of the survey of the bridge across the Potomac which that act authorized the President to cause to be erected, and showing, after a careful survey, the propriety of applying a part of the sum appropriated to the repairing the old bridge; the other showing the considerations which, in the opinion of the same engineer and that of General Gratiot, should determine the choice between a superstructure of wood and of iron on the same foundation of granite.
Concurring in the reasons stated by these officers for the preference of the superstructure of wood, I have adopted it accordingly, and propose to take the measures necessary for the execution of the work. Previously, however, to inviting contracts for this purpose I deem it advisable to submit the subject to Congress, in order that the necessary appropriations may be supplied.
Andrew Jackson, Special Message Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/200620