Brick Bridge

Plate 10A Brick Bridge Ooty, India	10B Brick Bridge, Delhi	10C Railway Bridge, Patna

(Source:http://www.google.co.in/search?hl=en&sugexp=les%3B&pq=brick+bridges&cp=22&gs_id
=13y&xhr=t&q=Brick+Bridges+in+India&bav=on.2,or.r_gc.r_pw.r_qf.&biw=1366&bih=664&um=1&
ie=UTF8&tbm=isch&source=og&sa=N&tab=wi&ei=oGFyULC9GM7NrQfPrIGwAg#um=1&hl=en&tb
m=isch&sa=1&q=bridges+in+india&oq=Bridges+&gs_l=img.1.2.0l10.45967.49904.6.52770.8.8.0.0
.0.0.579.4242.5-8.8.0...0.0...1c.1.ZHTtHcL7zmU&pbx=1&bav=on.2,or.r_gc.r_pw.r_qf.&fp=5d4ed025
d141eaff&biw=1366&bih=664 ; Oct. 8, 2012)

Clay bricks are being utilized for the construction of buildings and structures since the beginning of human civilization. We found the application of sun-dried bricks in Egyptian civilization. However, the terra-cotta brick or kiln-backed bricks appeared first time in the Indus Valley Civilization (4000 BC). The construction of brick-bridges became quite effective throughout the world. The kiln-backed brick-bridges (plate 10A) became popular due to its structural strength and durability compare to earlier rope and bamboo. Brick bridges having stronger construction allowed heavier loads. To create passage from mainland across the river (plate 10B) is an example of creating passage. In comparison to bamboo and rope, brick certainly provides greater strength (plate 10C) to carry load. Naturally the choice of brick became more suitable due to its strength and durability.