Some catenary masts of the Cologne tram seen on the Zollstock branch of line 12
on 26 August 2003. The concrete masts are old, the steel masts are new. The
catenary is upgraded for higher currents, to allow unrestricted operation of
4000 series low-floor trams. Note that the masts on the left side are higher,
maybe the will carry feeding lines. In the background the catenary of the DB
line from the Südbrücke to the western ring is visible.
<p>
Digital photo by
<a href="http://www-users.rwth-aachen.de/christoph.schmitz2/index.html">Christoph
Schmitz</a>