scope:

This standard applies to Bridge Structure assets owned by LU.

This standard applies to LU and Suppliers working on Bridge Structure assets owned and/or operated by LU.

This standard defines the requirements for assets through the following lifecycle stages:

a) Inception and design

b) Construction, installation, testing and commissioning

c) Inspection

d) Analytical assessment

e) Condition assessment and certification

f) Maintenance

g) Strengthening and Renewal

h) Decommissioning

i) Evidence of compliance

Purpose

The purpose of this standard is to define the whole life cycle requirements for Bridge Structure assets. These assets comprise:

a) Rail bridges - This category of structure covers structures owned by LU carrying LU tracks, including:

I) Underbridge

II) Overbridge

III) Viaduct

IV) Girdering

V) Way beam.

b) Highway bridges - This category of structure covers structures owned by LU carrying public or private road traffic, including:

I) Overbridge

II) Viaduct.

c) Footbridges;

d) Underground structures - This category of structure covers:

I) Covered Ways

II) Subsurface tunnels (i.e. cut and cover brick arch tunnel);

II) Subways

IV) Culverts.

e) Earth retaining walls, including gabions

f) Ancillary structures and components - This category of structure covers:

I) Cable bridges

II) Pipe bridges

III) Pipe crossings over / under track

IV) Signal gantries, these are metal framed structures carrying a signal or signals. Signal posts and signal access ladders and hoops do not form part of the civil asset responsibility

V) Gantries over railway

VI) Crash barriers

VII) Longitudinal Timbers.

Note: The associated document G0051 gives guidance and explanation on Bridge Structure assets.

In defining requirements specifically applicable to assets, this standard complements LU standard S1050 that defines mandatory requirements generally applicable to all Civil Engineering assets including Bridge Structure assets.

Note: Structural elements of stations within tunnels are included in LU standard S1055

Drainage to Bridge Structures is included within LU standards S1052 and S1056

Station capacity planning requirements including spatial requirements are included in LU standard S1371

Station platform finishes, tolerances tactile warning strips and safety markings are included in LU standard S1131.

Stairways and ramp requirements are included in LU cat 1 Standard S1133.

Ladders and Step Iron requirements for drainage installations are included within LU standard S1052.

Requirements for barriers is given within LU standard S1132.