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  2. Cross bracing - Wikipedia

    en.wikipedia.org/wiki/Cross_bracing

    This bracing is known by many names such as herringbone strutting, blocking, bridging, and dwanging. Cross bracing on a bridge tower. In construction, cross bracing is a system utilized to reinforce building structures in which diagonal supports intersect. Cross bracing is usually seen with two diagonal supports placed in an X-shaped manner.

  3. Interstate Highway standards - Wikipedia

    en.wikipedia.org/wiki/Interstate_Highway_standards

    The cross bracing of truss bridges has a special additional clearance requirement of 17.5 feet (5.3 m). Bridges: Bridges less than 200 feet (61 m) long should carry the full width of the roadway, including the paved shoulders. Longer bridges can reduce the width of both shoulders to 4 feet (1.2 m).

  4. Plate girder bridge - Wikipedia

    en.wikipedia.org/wiki/Plate_girder_bridge

    In a plate girder bridge, the plate girders are typically I-beams made up from separate structural steel plates (rather than rolled as a single cross-section), which are welded or, in older bridges, bolted or riveted together to form the vertical web and horizontal flanges of the beam. In some cases, the plate girders may be formed in a Z-shape ...

  5. Tunnel construction - Wikipedia

    en.wikipedia.org/wiki/Tunnel_construction

    Tunnel Construction. Tunnels are dug in types of materials varying from soft clay to hard rock. The method of tunnel construction depends on such factors as the ground conditions, the ground water conditions, the length and diameter of the tunnel drive, the depth of the tunnel, the logistics of supporting the tunnel excavation, the final use and shape of the tunnel and appropriate risk management.

  6. List of bridge failures - Wikipedia

    en.wikipedia.org/wiki/List_of_bridge_failures

    Remainder of bridge extensively repaired and retrofitted. Triaxial welds were drilled and most cross bracing members were removed. Many other similar bridges around the world were also modified in this way as a result of this failure. Hintze Ribeiro Bridge: Entre-os-Rios, Castelo de Paiva: Portugal: 4 March 2001: Masonry and steel bridge built ...

  7. Map shows Congestion Pricing will cost up to $27 to ... - AOL

    www.aol.com/news/map-shows-congestion-pricing...

    New congestion pricing will lead to cars being charged up to $27 total to cross into Manhattan during the ... 21.60 alongside any bridge or tunnel costs during peak period, defined as 5 a.m. to 9 ...

  8. Bayshore Cutoff - Wikipedia

    en.wikipedia.org/wiki/Bayshore_Cutoff

    Each tunnel shares the same cross-section design, being a semicircular arch 30 feet (9.1 m) wide to accommodate two tracks spaced 13 feet (4.0 m) apart (centerline to centerline). Overall height in the center of the tunnel is 27 feet (8.2 m), with clearance of 22 feet (6.7 m) above the top of the rail at each track centerline.

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