scope:

This Standard applies to Bridge Structure assets owned by LU.

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

Inception and design

Construction, installation, testing and commissioning

Inspection

Analytical assessment

Condition assessment and certification

Maintenance

Strengthening and Renewal

Decommissioning

Evidence of compliance

This issue of the standard replaces 1-051 A2.

Purpose

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

Rail bridges

This category of structure covers structures owned by LU carrying LU tracks, including:

Underbridge

Overbridge

Viaduct

Girdering

Way beam

Highway bridges

This category of structure covers structures owned by LU carrying public or private road traffic, including:

Overbridge

Viaduct

Footbridges

Underground structures

This category of structure covers:

Covered Ways

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

Subways

Culverts

earth retaining walls, including gabions 

Ancillary structures and components 

This category of structure covers:

Cable bridges

Pipe bridges

Pipe crossings over / under track

Signal gantries

Gantries over railway

Crash barriers

Longitudinal Timbers

In defining requirements specifically applicable to assets, this Standard complements Standard 1-050 (Civil Engineering - Common Requirements) that defines mandatory requirements generally applicable to all Civil Engineering assets including the Bridge Structure assets.

A supporting Manual of Good Practice G-051 gives guidance and explanation on Bridge Structure assets.