In
the 1860s, London had a problem: TRAFFIC! (Does that
sound familiar?) Thousands of people and carts horses made journeys
across London. Crossing the River Thames was especially difficult.
You could take a boat across, but that was slow and expensive. You
could cross London Bridge for free, but it was really crowded. Every
day over 100,000 people crossed London Bridge – and
that only counts the people traveling on foot!
So,
the City of London decided to build a new river crossing. It needed
to allow carts and horses and people to cross over it, without blocking
the ships coming up the River Thames. After all, the Thames was one
of the world's busiest shipping channels. The big question was: How
do you design a bridge which will allow carts & horses to cross
over it, while allowing the tall ships to cross under it?
All sorts of architects submitted all sorts of designs: Some were
tunnels, dug deep underneath the river; others were really tall bridges,
or bridges with steep roads; one was a "rolling" bridge;
one had a special interlocking loops which would keep the traffic
flowing above and below the bridge. But none of these ideas seemed
practical.
Enter
Horace Jones, the City Architect. Officially, he
was the "Architect and Surveyor to the City of London Corporation,"
a post dating back to the 15th century. Horace Jones submitted an
idea for a bascule bridge. (The word bascule
comes from the French word for "seesaw.") Horace Jones'
bridge would raise its bascules to let the tall ships pass through,
and it had walkways, high above the ships' masts, where pedestrians
could cross as the ships passed underneath. Problem solved!