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2 Sydney, Australia

3 Arches can also be set above the deck as on the Sydney harbour bridge in Australia. This allows much more space beneath for ships to pass under. bridge-types-arch.html

4 Blue Water Bridges are a major international crossing over the St. Clair river at the southern end of Lake Huron Blue Water Bridge

5 Eads Bridge, St. Louis

6 Port Mann Bridge, Coquitlam-Surrey BC This graceful steel arch, once the third-longest of its kind in the world, carries the Trans-Canada highway across the Fraser River. In 2002 its capacity was increased with the addition of an eastbound high occupancy vehicle (HOV) lane, bringing the total to five bridge-van.htm

7 Cantilever Bridges

8 FIXED Cantilever Double-ended brackets supporting a center span Shore end of each cantilever firmly anchored Center supported by pier

9 Quebec Bridge

10 Quebec Bridge

11 Quebec Bridge

12 Quebec Bridge

13 Quebec Bridge

14 Quebec Bridge

15 Quebec Bridge On June 15, 1907 an inspecting engineer noted that two girders of the anchor was misaligned by a quarter of an inch. Cooper called this a "not serious" problem. In the inspection report in August, 1907, it was noted that the girders had moved out alignment a bit more and "appeared bent". Although this condition was a bit more concerning, the work continued.

16 Scotland's Firth of Forth A period museum photo shows cranes atop the massive structure. The bridge was constructed from , 2.5 KM (1.5 miles) across Scotland's Firth of Forth. Note reflection of photographer from glass frame.

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19 Lewis and Clark Bridge (Longview-Rainier Bridge) across the Columbia River.

20 [Queensboro Bridge, Roosevelt Island, New York, N.Y.].

21 Astoria bridge

22 Suspension Bridges

23 FIXED Suspension Roadway hangs from vertical cables supported by overhead cables strung between two or more towers Longest spans Costly Difficult to design Highly susceptible to winds and swaying Cables can be up to three feet in diameter

24 Tanana River suspension bridge.

25 Tsing Ma Bridge, Hong Kong

26 Akashi-Kaikyo Bridge, Japan

27 Brooklyn Bridge

28 The 3rd Carquinez Strait Bridge will replace the original bridge that was built in 1927.

29 Ambassador Bridge

30 Ambassador Bridge

31 Golden Gate Bridge

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34 Golden Gate Structures

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36 When it opened in 1964, the Verrazano Narrows Bridge was the world's longest suspension span. Today, its length is surpassed only by the Humber Bridge in England.

37 Verrazano

38 Tacoma Narrows Bridge collapsing, Tacoma, Washington, 1940 On the morning of November 7, 1940, the Tacoma Narrows Bridge twisted violently in 42-mile-perhour winds and collapsed into the cold waters of the Puget Sound. The disaster -- which luckily took no human lives -- shook the engineering community and forever changed the way bridges were built around the world. Roadway of Tacoma Narrows Bridge twisting violently in a windstorm, Tacoma, Washington, 1940

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40 Cable-Stayed Bridges

41 FIXED Cable-Stayed Suspended by cables that run directly down to roadway from central towers Less costly than suspension Quickly constructable Spans must be limited in length

42 Sunshine Skyway Bridge, St. Petersburg and Bradenton, Florida

43 Sunshine Skyway Bridge, St. Petersburg and Bradenton, Florida

44 Clark Bridge in Alton, IL

45 Clark Bridge in Alton, IL

46 Clark Bridge in Alton, IL

47 Dames Port Florida

48 Dames Port Florida

49 Dames Port Florida

50 Swing Bridges

51 MOVEABLE Swing Central span turned 90 degrees on pivot pier placed in middle of waterway Double swing possible

52 Catalog Advertisement

53 Moveable Bridge

54 BRIDGE ACROSS SHATT-AL-ARAB, IRAQ

55 Detail of south truss showing truss configuration and connections HAER, MASS,2-WIND,1-3

56 Detail of south truss showing truss configuration and connections HAER, MASS,2-WIND,1-3

57 Coleman Bridge, Spanning Phelps Brook, on Windsor Bush Road, at th, Windsor, Berkshire County, MA

58 Bascule Bridges

59 MOVEABLE Bascule One or two sections not supported by piers Balanced on one end by counterweights Section jackknifes up to allow passage of ships Most common type of highway drawbridge

60 View of an elevated train crossing the Van Buren Street Railroad Bridge which spanned the Chicago River from the Loop to the Near West Side community area in Chicago, Illinois.

61 View of a bascule bridge over the Chicago River in Chicago, Illinois.

62 Haarlem old lifting bridge. Lifting bridges are moveable bridges which enable boats to pass. They vary from simple wooden designs such as many seen in the Netherlands to large steel structures which carry heavy roads such as the bascule bridge in Docklands.

63 Erie Street Bridge, a bascule bridge, with the two leaves in raised position

64 Sault Ste. Marie International Bridge

65 Erie Avenue Bridge Newberry Bridge

66 Vertical Lift Bridges

67 MOVEABLE Vertical Lift Central span extends between two towers Balanced by counterweights Variation of this type is bridge over Shatt-alarab River in Iraq Roadway sinks into water to allow ships to pass over it

68 Vertical lift Baltimore (Pratt) through-truss railroad bridge

69 Cape Cod Canal Railroad Bridge Buzzards Bay, Massachusetts

70 Leamington Lift Bridge, Scotland

71 Goethals Bridge, Spanning Arthur Kill from New Jersey to Staten Isl, Staten Island, Richmond County, NY

72 Goethals Bridge, Spanning Arthur Kill from New Jersey to Staten Isl, Staten Island, Richmond County, NY

73 GUIABA RIVER AT PORTO ALEGRE, BRAZIL

74 The vertical lift bridge that carries US-41 across the Portage Canal.

75 Aerial bridge, Duluth, Minn..

76 Aerial bridge, Duluth, Minn..

77 Aerial bridge, Duluth, Minn..

78 Bailey Bridges

79 OTHER Bailey Small truss bridge made in sections Assembled on shore Pushed out from shore to cover span Transportable to new sites

80 Bailey Tank destroyer advances along a mountain road, Italy

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83 Pontoon Bridges

84 OTHER Pontoon Floats on water Can be disassembled and moved to new site Supported by pontoons or barges

85 The U.S. Army's Sava River bridge is taken apart at nightfall and put together in the morning

86 View of James River Pontoon Bridge, from south side, above Jones' Landing.

87 Pontoon bridges, North Anna, constructed by the 50th N.Y.V. Engineers, below railroad bridge, where a portion of the 2nd Corps, under Gen. Hancock crossed 23rd May, 1864

88 Broadway Landing, Va. Pontoon bridge across the Appomattox

89 Evergreen Floating Bridge

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91 Evergreen Bridge. The official name of the bridge is the Governor Albert D. Rosellini Bridge at Evergreen Point, after a popular former governor who was in office when the bridge opened.

92 Combined Bridges

93 [Stony Brook glen, Shawmut Bridge, Dansville, N.Y.].

94 Knie_bridge

95 Lake_Pontchartrain_Causeway-vi.jpg

96 Lake_Pontchartrain_Causeway-vi.jpg

97 Old Alton Bridge

98 Name that Bridge Give the type for each.

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