Structures Maintenance Plan

2. Objectives

2.1 Whilst the Highways Act 1980 does not define the levels at which highway assets should be maintained, the Code of Practice promotes the adoption of an integrated asset management approach to highway infrastructure based on the establishment of local levels of service through risk based assessment. With levels of service and delivery arrangements being established with due regard to the core objectives of;

Network Safety
Customer Service
Network Serviceability
Network Sustainability

2.2. The levels of service based on the core objectives can be summarised as follows;

Attribute	Standard	Performance Measure
Safety	Ensure the structure is safe and fit for purpose	%age of highway safety inspections completed on time
Customer Service (Availability)	Ensure structure is available for normal daily use by providing adequate load carrying capacity, width and headroom	Customer satisfaction measured biennially through the National Highways and Transportation Survey.
Serviceability	Maintain appropriate appearance through routine and preventative maintenance regimes (including removal of offensive graffiti)	None
Sustainability	Maintain condition of the structures stock at a level consistent with achieving minimum whole life cost	Bridge Condition Indicators (BCIcrit) monitored on an annual basis.

2.3 The outcomes of the performance measures detailed above are updated in the Highway Infrastructure Asset Management Strategy which is published on the Council's website at the following address.

Highway Network Management and Services - Stockton Council

2.4 The main types of maintenance for highway structures are as follows;

Type of Maintenance	Description
Reactive	Responding to inspections, complaints or emergencies.
Routine	Inspections, assessment and works that are carried out to a regular schedule which can help maintain the condition and functionality of the structure and may reduce the need for other, normally more expensive maintenance works. Examples of routine maintenance include vegetation clearance and drainage cleaning.
Programmed	Flexibly planned schemes primarily of: Preventative Maintenance - work carried out to maintain the condition of the structure by protecting it from deterioration or by slowing down the rate of deterioration. Such as re- pointing, repainting and re-waterproofing. Upgrading - works to improve an existing asset beyond its current design capacity in order to bring the structure up to an appropriate current standard. Component Renewal - renewal of components that have a finite service life e.g. bearings or expansion joints. Replacement - a structure/component is replaced when it reaches the end of its useable life. The replacement structure/component restores the full design performance of the structure/component it replaces.

Type of Maintenance

Description

Reactive

Responding to inspections, complaints or emergencies.

Routine

Inspections, assessment and works that are carried out to a regular schedule which can help maintain the condition and functionality of the structure and may reduce the need for other, normally more expensive maintenance works. Examples of routine maintenance include vegetation clearance and drainage cleaning.

Programmed

Flexibly planned schemes primarily of:

Preventative Maintenance - work carried out to maintain the condition of the structure by protecting it from deterioration or by slowing down the rate of deterioration. Such as re- pointing, repainting and re-waterproofing.
Upgrading - works to improve an existing asset beyond its current design capacity in order to bring the structure up to an appropriate current standard.
Component Renewal - renewal of components that have a finite service life e.g. bearings or expansion joints.
Replacement - a structure/component is replaced when it reaches the end of its useable life. The replacement structure/component restores the full design performance of the structure/component it replaces.

2.5 The foundations of the Authorities SMP are;

Inventory
Hierarchy
Inspections
Maintenance Regimes
Risk Management
Resilience

2.6 These are explained in further detail below.

Prev : 1. Introduction and Legal Framework Next : 3. Inventory

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Structures Maintenance Plan

2. Objectives