A bridge in architectural reference is a structure built to span a physical obstacle such as a valley, body of water or road, without closing the way underneath. The main purpose of constructing a bridge is to build a passage over the obstacle, usually something that can be detrimental to cross otherwise. There are many different designs of a bridge, and each one serves a different purpose in different situations. The designs hence vary according to the function of the bridge, the nature of the terrain where the bridge is anchored and constructed, the material which has been used to make it and the funds and capital available to build it. 

Most likely, as per resources, the earliest bridges were made of fallen trees and stepping stones. The revolution in the history of bridges initiated when the Neolithic people built boardwalk bridges across marshland. One of the oldest arc bridges, known to be in existence and use is the Arkadiko Bridge, in the Peloponnese, in the Southern Greece. This bridge has been standing since the 13th century BC. Sweet Track and Post track are examples of bridges built by the Neolithic people in England about 6,000 years ago.

In this sub category you can download free PNG images: Bridge Objects. In this category "Bridge" we have 13 free PNG images with transparent background.

  • Bridge Photo PNG Image
    Bridge Photo
    Format: PNG
    Resolution: 600x288
    Size: 164.2KB
    Downloads: 746
  • Bridge File PNG Image
    Bridge File
    Format: PNG
    Resolution: 1404x827
    Size: 1.2MB
    Downloads: 533
  • Bridge Clipart PNG Image
    Bridge Clipart
    Format: PNG
    Resolution: 736x556
    Size: 530.6KB
    Downloads: 519
  • Bridge Image PNG Image
    Bridge Image
    Format: PNG
    Resolution: 1535x485
    Size: 638.1KB
    Downloads: 504
  • Bridge PNG Image
    Bridge
    Format: PNG
    Resolution: 512x512
    Size: 5.1KB
    Downloads: 495
  • Bridge Hd PNG Image
    Bridge Hd
    Format: PNG
    Resolution: 600x440
    Size: 357.1KB
    Downloads: 494
  • Bridge Transparent Background PNG Image
    Bridge Transparent Background
    Format: PNG
    Resolution: 1024x296
    Size: 11.5KB
    Downloads: 484
  • Bridge Transparent Image PNG Image
    Bridge Transparent Image
    Format: PNG
    Resolution: 900x352
    Size: 502.7KB
    Downloads: 473
  • Bridge Picture PNG Image
    Bridge Picture
    Format: PNG
    Resolution: 1024x490
    Size: 488.0KB
    Downloads: 436
  • Bridge Free Download PNG Image
    Bridge Free Download
    Format: PNG
    Resolution: 1641x841
    Size: 888.4KB
    Downloads: 426
  • Bridge Transparent PNG Image
    Bridge Transparent
    Format: PNG
    Resolution: 1197x846
    Size: 1.1MB
    Downloads: 409
  • Bridge Photos PNG Image
    Bridge Photos
    Format: PNG
    Resolution: 1445x772
    Size: 1.0MB
    Downloads: 404
  • Bridge Transparent PNG Image
    Bridge Transparent
    Format: PNG
    Resolution: 512x512
    Size: 51.5KB
    Downloads: 390

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