Dust of the feet
And dust of the wheels,
Wagons and people going,
All day feet and wheels.

Now. . .
. . Only stars and mist
A lonely policeman,
Two cabaret dancers,
Stars and mist again,
No more feet or wheels,
No more dust and wagons.

Voices of dollars
And drops of blood
. . . . .
Voices of broken hearts,
. . Voices singing, singing,
. . Silver voices, singing,
Softer than the stars,
Softer than the mist.

Carl Sandburg

http://www.poemhunter.com/poem/clark-street-bridge/