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October 2008

Production teamDirection du soutien aux opérations [Operations Support Department]Direction des structures [Structures Department]

Project leaderJean Lefrançois Service de the exploitation [Operations Department], DSO [OSD]Philippe Veillette Service de the gestion des projets routiers

[Highway Projects Management Department], DSO [OSD]

Content expertsDaniel Bouchard Service de l’entretien [Maintenance Department], DS [SD]Jean Lefrançois Service de l’exploitation [Operations Department], DSO [OSD]Bernard Pilon Service de l’entretien [Maintenance Department], DS [SD]

ConsultantsNicole Desjardins Centre intégré de gestion de la circulation à Québec

[Integrated Traffic Management Centre, Québec City]Robin Lavictoire Centre intégré de gestion de la circulation à Montréal

[Integrated Traffic Management Centre, Montréal]Louise Milette Centre intégré de gestion de la circulation à Montréal

[Integrated Traffic Management Centre, Montréal]Claude Pigeon Centre intégré de gestion de la circulation à Québec

[Integrated Traffic Management Centre, Québec City]Alain Tremblay Centre intégré de gestion de la circulation à Québec

[Integrated Traffic Management Centre, Québec City]

SecretariatLynda Lachance Service de l’exploitation [Operations Department], DSO [OSD]

ISBN (print version): 978-2-550-58892-4 ISBN (PDF): 978-2-550-58891-7

Legal deposit – Bibliothèque et Archives nationales du Québec, 2010Legal deposit – Library and Archives Canada, 2010

5

TABLE OF CONTENTS1 INTRODUCTION 7

2 PATROLLING FOR THE MONITORING OF STRUCTURES 8

3 STRUCTURES THAT REQUIRE SPECIFIC MONITORING 9

4 MINISTRY PROCEDURE FOR THE MONITORING OF STRUCTURES 10

5 DETAILED DESCRIPTION OF THE MONITORING PROCEDURE 13

6 TRAINING FOR THE MONITORING OF STRUCTURES PATROL 20

7 MATERIAL REQUIRED FOR THE MONITORING OF STRUCTURES 21

APPENDICES

COURSE OUTLINE FOR PATROLLING STRUCTURES 25

PATROLLING REGULAR STRUCTURES – CHECKLIST 27

7

Monitoring of the road network refers to all of the activities required to allowfor the continuous supply of adequate information pertaining to the condition(observable anomalies) and utilization of the network so that prompt actioncan be undertaken in order to carry out the work required to ensure the safetyof and provide assistance to users and to maintain the functionality of thenetwork and the free flow of traffic.

The monitoring of structures is as much a part of the process of monitoringthe road network as the monitoring of signage or shoulders, for example.The objective is to maintain satisfactory knowledge of the condition of thestructures, or in other words, to carry out an analysis of and follow up onanomalies that are observable in the course of activities related to monitoringthe network so that the actions required in order to ensure user safety can beundertaken quickly.

However, in light of the potential risks to user safetyresulting from any event that affects a structure, it isworthwhile to describe the aspects that are specificto the monitoring of this type of component withinthe context of this document. These aspects includestructures that require specific monitoring and themonitoring process.

In terms of reporting anomalies, the procedure for themonitoring of structures will be incorporated into theGuide du surveillant du réseau routier [Road PatrollerHandbook]. Territorial departments may finalize theprocedure by including specific information, such as datapertaining to structures that require specific monitoringand the telephone numbers of pertinent resources.

FOR ROAD PATROLLER

1

INTRODUCTION

8

This monitoring procedure determines the relationship between RoadPatrollers who are patrolling for the purpose of monitoring structures andStructural Engineers when anomalies are reported.

Periodic monitoring patrols are required for bridges in order to ensure usersafety and to report any anomalies that may appear during the periodbetween general or annual inspections. Patrolling a structure does notconstitute an inspection, but rather a spot-checking operation. The RoadPatroller does not make a diagnosis, and his responsibility is limited toreporting what he sees and what looks suspicious to him on the bridge. Theresponsibility for the problem lies with a Structural Engineer. This monitoringpatrol, which is carried out systematically, allows the Road Patroller to reportanomalies to a Structural Engineer immediately so that the Ministère desTransports du Québec (MTQ) can intervene in time.

The monitoring patrols that are carried out by Road Patroller are limitedto bridges that are located within the road network that is administeredby the MTQ. Bridges that are located within the municipal road network(i.e.: the structures that are contemplated by the Order-in-Council respectingthe takeover of municipal bridges) must be monitored by the municipalities.However, the MTQ responds to reports of anomalies received by the IntegratedTraffic Management Centre (ITMC), and dispatches a Road Patroller.

MINISTRY PROCEDUREFOR THE MONITORING OF STRUCTURES

2PATROLLING FOR THE MONITORING OF STRUCTURES

9

If an Inspector detects an anomaly during a regular inspection, the StructuralEngineer may charge the Foreman with regular monitoring of the damage(abnormal opening of a deck joint, risk of falling concrete fragments, etc.)until the necessary corrective action can be undertaken. The Engineer mustprovide all necessary assistance and relevant instruction.

This instruction may include the list of structuresthat require specific monitoring, the frequency ofmonitoring, the location and description of theanomaly, expected indications of aggravationof the damage (visual or measurable thresholds ofthe monitored component), photographs of theanomaly, and other pertinent details.

FOR ROAD PATROLLER

3STRUCTURES THAT REQUIRESPECIFIC MONITORING

10

Within the context of its risk management process, the MTQ has implementedan effective procedure for the monitoring of bridges. Using a direct link, theRoad Patroller reports any suspect anomaly that is observed during a patrol toa Structural Engineer without delay.

The Ministry Procedure for the Monitoringof Structures is illustrated by the logic dia-gram that appears on page 12. This diagramdemonstrates the procedure from the timewhen the anomaly is reported to theclosing of the file at the Integrated TrafficManagement Centre.

In summary, the logic diagram leads to four possible outcomes:

1. The anomaly is so obvious that theRoad Patroller must act without delayand close the road.

2. The anomaly turns out to be unremarkable in the opinion of the RoadPatroller, or has not developed over the course of the specific monitoringprocess, and closing the road is not required.

3. The anomaly is suspect, and the Road Patroller reports the case to theStructural Engineer.

4. The Structural Engineer takes over the case. His recommendation maylead to closing the road.

A direct telephone link between the Road Patroller and a Structural Engineeris available at all times. This direct link makes it possible to obtain an opinionfrom a Structural Engineer at any time when the Road Patroller detects orsuspects an anomaly on a structure following a first walk-around inspectionon and under a bridge.

MINISTRY PROCEDUREFOR THE MONITORING OF STRUCTURES

4

SUPPLEMENTARY NOTEThe tree structure of the logic diagram couldbecome more elaborate if certain implicit opera -tions were incorporated into it (e.g.: load limits,activation of intervention plans, transmissionof information to project and service centredepartment heads, Technical Notices to be follo - wed, etc.). However, although these details arenot unimportant, their inclusion would inevi tablycomplicate the reading of the logic diagram.Administrative units are free to adapt the logicdiagram to the needs of their organization whilerespecting the guidelines of the procedure.

MINISTRY PROCEDURE FOR THE MONITORING OF STRUCTURES

11

In general, the request for a Technical Notice submitted by a Road Patrollermust follow this sequence:

CALL 1:

The Road Patroller initially telephones a Structural Engineer within theTerritorial Department (TD) and requests a verbal opinion with respect tothe action to be undertaken.

CALL 2:

If the Structural Engineer within the Territorial Department cannot be reached,the Road Patroller contacts an Engineer in the Structures Department (SD)directly. This advisory service can be reached at the following telephonenumbers at any time: 418-644-5565 or 418-644 5568.

The Structural Engineer exchanges information with the Road Patroller. Aftercompleting his analysis, the Structural Engineer (Territorial Department andStructures Department) communicates his recommendation to the IntegratedTraffic Management Centre located in the pertinent branch (ITMC Québec Cityor Montréal). Among other things, this approach makes it possible to finalizethe follow-up of the request and to initiate the information distributionprocess among the various actors concerned within the Territorial Department(managers, technical staff, etc.). The ITMC officer is designated to act as a relaybetween the Structural Engineer and the responders within the territory. Thisprocedure allows the ITMC to document the event.

The Technical Notice is communicated to the managers within the TerritorialDepartment through the Integrated Traffic Management Centre. This allowsthem to implement the plans required in order to ensure user safety andpreservation of the integrity of the structure.

It is understood that the line of communication between the Structural Engineerand ITMC officer takes precedence, but there is no prohibition on exchangesbetween the Structural Engineer and the Road Patroller. In fact, it is desirablefor the Structural Engineer to assist the responders on the scene when a suspectanomaly is reported.

In any case where it is necessary to close a road, Procedure PR-01, Fermeturede route à l’entretien du ministère des Transports lors de tempêtes de neigeou de situations d’urgence pouvant affecter la sécurité des usagers [RoadClosing by the Ministère des Transports for Maintenance during Snow Stormsor Emergency Situations Potentially Affecting User Safety], and the Procédurelocale de fermeture de route [Local Road Closing Procedure] apply, and theRoad Patroller must communicate with the designated officer in charge ofroad closings in order to obtain authorization.

FOR ROAD PATROLLER

4

12

Structural Engineers designated by the Structures Department: 418-644-5565 or 418-644-5568ITMC-Montréal, serving the MOHQ: 514-873-5154 for bridges on the island of Montréal

514-873-5452 through the TDC for other territoriesITMC-Québec, serving the QEHQ: 418-644-7211

MINISTRY PROCEDUREFOR THE MONITORING OF STRUCTURES

4MINISTRY PROCEDURE FOR THE MONITORING OF STRUCTURES

Opening of request at ITMC

ANOMALY REPORTED ON A STRUCTURE

RESPONDER COLOUR CODE

Closing of ITMC file

Notify municipality of handing over responsibility for

the request

Notify municipality of MTQ assumption of responsibility

for the anomaly

YES

YES

YESBridge within municipal road

network?

Is the anomaly the responsibility of the

municipality?

NONO

Closing of ITMC file

ITMC initiates its communications procedure

Analysis and recommendations by a Structural Engineer (if required, exchanges

between SD and DT engineers).Recommendations transmitted

to the ITMC

NO

YES

NO

YES

Obtain authorization from official designated

for road closings in the local procedure Transmit information

to the Foreman for planning of works,

if required

Transmit information to ITMC

Apply local road closing procedure

Request for an opinionfrom an Engineer designated by the

Structures Department

Request for an opinion from a

TD Structural Engineer

NO

YESTD Structural Engineer contacted

successfully?

Contact a TD Structural Engineer

Opinion required in order to make

a decision?

Close road?

Notification of Road Patrollers

Walk-around inspection of bridge by

Road Patrollers

Road PatrollerIntegrated Traffic

Management Centre

TD or SD Structural Engineer TD manager(s)

Structural Engineer recommends

closing?

Transmission of information to TDmanagers and to the municipality

if concerning a bridge within the municipal road network

Figure 1

Indicator on bridge: safety barrier on the deck that no longer lines up with that on the abutment.

Figure 2

Indicator on bridge: deck joint showing vertical shifting. This results in a knocking sound and discomfort as vehicles drive over it.

SUPPLEMENTARY NOTESIn general, there are three visual indicators that can be detected on the surface of a bridge from a vehicletravelling at low speed that reveal that a serious anomaly has developed: settling or a cracking patternin the backfill of the on-ramp; a safety barrier on the deck that no longer lines up with that on the abutment;and a deck joint that shows an abnormal opening or significant vertical shifting.

Visual indicators that are detected at the surface often arise from an anomaly that is located below thedeck of the structure, near the supports, or at the foot of the foundation units. These types of anomaliesalmost invariably manifest themselves at the surface by altering the level or alignment of the bridge deckor the backfill.

13

The monitoring procedure can be broken down stepby step. A detailed description is given for each of theelements illustrated in the logic diagram.

An anomaly report may come from a Road Patrollerwho is engaged in a monitoring patrol, or from theITMC following a comment or complaint by a thirdparty or a call from a police service. The ITMC officersopen a request file. A Road Patroller who observes anindication of a problem while driving on or near abridge will get out of his vehicle and conduct a walk-around inspection.

FOR ROAD PATROLLER

5

Opening of request at ITMC

ANOMALY REPORTED ON A STRUCTURE

Walk-around inspection of bridge by

Road Patroller

DETAILED DESCRIPTION OF THE MONITORING PROCEDURE

14

This walk-around inspection of the structure allows the Road Patroller to getclose to the bridge components and to note any anomalies. This monitoring,which is carried out in the field, ensures that the Road Patroller will be ableto provide verified and relevant information to the Structural Engineer, andto take adequate photographs of the anomaly or the suspect component.

MINISTRY PROCEDUREFOR THE MONITORING OF STRUCTURES

5

Figure 3

Indicator on bridge: safety barrier on the deck that no longer lines up with that on the abutment.Anomaly under the bridge detected following awalk-around inspection: broken chord component.

Figure 4

Anomaly under the bridge: dismantled bridge bearing (under a beam), detected by the Road Patroller by comparison with the same componentson the abutment.

In most cases, even with no specialized expertise, a Road Patroller will be able to detect apparentdamage (a bridge bearing that has settled relative to the structure as a whole, an out-and-out fracturein a foundation block or a steel chord component, an abnormally sloping abutment or bridge pier, aloose fragment of concrete, etc.) as well as its scope by simply comparing the suspect component tothe corresponding component of the abutment or the neighbouring bridge pier, the bridge bearing line,adjacent beams, etc.

The Patrolling Regular Structures – Checklist form, which is included as an appendix by the StructuresDepartment, lists the indicators that an anomaly has developed on the top or bottom of the structure,and guides the Road Patroller toward the probable cause (the pertinent bridge components). The backof the form provides a list of the types of bridges, and reviews the terminology related to the maincomponents of a bridge.

15FOR ROAD PATROLLER

5

Closing of ITMC file

Notify municipality of handing over responsibility for

the request

Notify municipality of MTQ assumption of responsibility

for the anomaly

YES YESBridge within municipal road

network?

Is the anomaly the responsibility of the

municipality?

NONO

SUPPLEMENTARY NOTE The transfer of the management of municipal bridges located in municipalities with a population of 100,000 or less to the Québecgovernment on January 31, 2001 has been in effect since January 2008. Order-in-Council no. 1176-2007 of December 19,2007, published in the Gazette officielle du Québec on January 16, 2008, confirms that the bridges listed in the appendix to theOrder-in-Council are under the management of the MTQ, even if they are located on roads that remain under municipalmanagement. All documents related to the assumption of responsibility for municipal bridges are available on the website ofthe Direction du soutien aux opérations www.intranet-dsei-fp/sqn/orientations/ponts_municipaux.htm. This site also containsthe list of municipal bridges that the MTQ is responsible for. This document can also be obtained from the StructuralEngineers within the Territorial Department.

Figures 5 and 6 provide a detailed illustration of the new division of responsibilities between the MTQ and the municipalitiessubsequent to this assumption of responsibility. The components that are shaded in orange represent the bridge components thatmunicipalities are responsible for.

For example, in the sketch that appears in the upper portion of Figure 5, we see that the lighting system, the base of the lightstandards, the sidewalk, the curb, the drains, and the asphalt fall under the responsibility of the municipality. Only the structuralcomponents (the beams and the slab) and the safety barriers (the guardrails and the parapet walls) are the responsibility ofthe MTQ.

Although the monitoring of the structures of bridges located within the muni -cipal road network is the responsibility of the municipalities, the MTQ providesthe walk-around inspection service for bridges that have come under its respon -sibility after an anomaly has been observed. Regardless of whether the calloriginates from a member of the public or from a police service, the RoadPatroller travels on the municipal network as a first responder at the requestof the ITMC officer. Once on the scene, the Road Patroller verifies whether thereported anomaly is the responsibility of the MTQ (see Figures 5 and 6 in thesupplementary note). The Road Patroller may consult a Structural Engineer inorder to validate this information.

When the anomaly is located on an element that falls under the responsibilityof the municipality, the Road Patroller notifies the ITMC officer, who thentransfers the request to the municipality. The officer then closes the file.

When the anomaly is located on a component that falls under the responsi-bility of the MTQ, the Road Patroller contacts the ITMC. The officer notifies themunicipality that the MTQ is assuming responsibility for the anomaly.

16 MINISTRY PROCEDUREFOR THE MONITORING OF STRUCTURES

5

Figure 5

Division of responsibilities for a conventional bridge – MTQ-MUN.

Figure 6

Division of responsibilities for a steel-wood bridge – MTQ-MUN.

LIGHTING

CURBASPHALT

LIGHT STANDARD

BASE

DRAIN

SAFETYBARRIER

SIDEWALK

FEBRUARY 2008

FEBRUARY 2008

ELEVATION A-A

ELEVATION A-A

MUNICIPALITY

TRANSPORTS QUÉBEC

MUNICIPALITY

TRANSPORTS QUÉBEC

A

A

A

A

PARAPET WALL

CURB

FLOOR TIMBER

15m

15m

DRIVINGSURFACE

INITIAL TIMBER

FLOORTIMBER

17

If the damage is obvious (i.e.: there is an obvious break in a component of thestructure that is visible to the eye) and the Road Patroller considers the situationto be risky with respect to the integrity of the bridge or dangerous for users,he immediately notifies his Foreman, who will initiate the procedure for closingthe road as quickly as possible.

When the damage appears unremarkable in the opinion of the Road Patroller,and is deemed not to be of any immediate consequence, the anomaly isrecorded and transmitted to the Foreman for the planning of work, if required.The Road Patroller notifies the ITMC, and the file is closed.

FOR ROAD PATROLLER

5

Transmit information to the Foreman

for planning of works, if required

NOClose road?

YES

Apply local road closing procedure

Transmit information to ITMC

Obtain authorization from official designated

for road closings in the local procedure

Closing of ITMC file

Request for an opinion from a

TD Structural Engineer

Request for an opinionfrom an Engineer designated by the

Structures Department

NO

YESTD Structural Engineer contacted

successfully?

Contact a TD Structural Engineer

18

When a Road Patroller detects or suspects an anomaly following his walk-around inspection, he must decide whether it is necessary to obtain the adviceof a Structural Engineer. If the damage causes him even the slightest doubt,he remains on site and contacts the Structural Engineer within his TerritorialDepartment immediately. The Structural Engineer takes the Road Patroller call,and the file becomes his responsibility. The Road Patroller reports the anomalyto him, taking care to give the location of the structure and to provide anadequate description of the anomaly. The Road Patroller uses a cell phonewith a built-in digital camera to sendphotographs of the anomaly. The RoadPatroller notifies the ITMC. The file is closedby the ITMC officer once of the data havebeen entered, or at the request of the RoadPatroller.

If the Territorial Department StructuralEngineer cannot be reached, the RoadPatroller contacts a designated engineer atthe Structures Department directly bydialling 418 644 5565 or 418-644-5568.

MINISTRY PROCEDUREFOR THE MONITORING OF STRUCTURES

5

SUPPLEMENTARY NOTEThe description of the anomaly can include thefile number, which appears on the panel affixedto the structure or mounted near it, the munici-pality, the road and the obstruction, the list ofindicators detected (e.g. abnormal opening of adeck joint, misalignment of safety barriers, etc.),the details of the anomaly detected or suspectedon the bridge, etc.

Request for an opinionfrom an Engineer designated by the

Structures Department

Request for an opinion from a

TD Structural Engineer

ITMC initiates its communications procedure

Analysis and recommendations by a Structural Engineer (if required, exchanges

between SD and DT engineers).Recommendations transmitted

to the ITMC

The engineer to whom the anomaly has been referred (Territorial Departmentor Structures Department) may ask the Road Patroller to take additionalmeasurements using a tape measure, or to calibrate a crack in a concrete blockusing a graduated card. In some cases, the engineer will travel to the site andcarry out a "special inspection".

19

During his analysis, the Structural Engineermay consult with his TD or SD counterpart.The engineer's recommendation is trans-mit ted directly to the ITMC for the regionin which the structure is located. The ITMCinitiates its communications procedure.

When the engineer's Technical Notice recommends closing the road, the ITMCofficer notifies the TD managers in accordance with the established procedure.In the case of a municipal bridge, the officer also notifies the pertinentmunicipality. The managers apply the appropriate intervention plans (includingthe local road closing procedure). The officer closes the file in due course, eitherwhen the Road Patroller requests it or when the matter has been sufficientlydocumented. In addition, the Structural Engineer remains on site in supportof the responders, as indicated by the dotted arrow, which allows for a directexchange of information with the Road Patroller.

If the Structural Engineer's recommendation does not require immediate closingof the road, the ITMC officer advises the Road Patroller of the actions to beundertaken, as applicable. The Road Patroller notifies his Foreman of theStructural Engineer's recommendations, and carries out the instructions fromhis Road Patroller. If necessary, the Foreman transmits the information to thedepartments affected by any actions to be undertaken or any work to becarried out, as applicable. The Road Patroller notifies the ITMC, and transmitsall other information pertaining to the event. The ITMC officer closes the file.

FOR ROAD PATROLLER

5

SUPPLEMENTARY NOTEThe calibration of a crack using a graduated cardmay seem complicated, but it is actually a simpleoperation that involves nothing more than slidinga card with graduated bands along the crack andchoosing the reference band that most closelycorresponds to the width of the opening.

Transmit information to the Foreman

for planning of works, if required

Apply local road closing procedure

Transmit information to ITMC

Closing of ITMC file

ITMC initiates its communications procedure

Analysis and recommendations by a Structural Engineer (if required, exchanges

between SD and DT engineers).Recommendations transmitted

to the ITMC

NO

YES

Transmission of information to TDmanagers and to the municipality

if concerning a bridge within the municipal road network

Structural Engineer recommends

closing?

Notification of Road Patrollers

20

The Structures Department provides training in order to ensure that this chapteris clearly understood, and that patrolling for the monitoring of structures iscarried out in a systematic manner. The purpose of this course is "to make itpossible for persons who do not have extensive experience in the field ofstructures to recognize distress indicators while driving in the area surroundinga structure, and where applicable, to conduct a walk-around inspection anddetermine the extent and nature of the damage". The outline of the trainingcourse is provided as an appendix.

In summary, the objective of the course is to demonstratehow to be fully attentive during monitoring patrols andthorough in dealing with incidents that affect structures.For example, the course describes several very clearvisual indicators that point to irregularities on thestructure, the various anomalies that can appear on abridge and where they appear, how to conduct a walk-around inspection, etc.

MINISTRY PROCEDUREFOR THE MONITORING OF STRUCTURES

6TRAINING FOR THE MONITORING OF STRUCTURES PATROL

21

Road Patroller must have access to the material required to carry out theirtasks at all times. The material that they must have on hand for the monitor-ing of structures is listed below:

1 Laminated calibration card used by sliding it along the opening of a crack in order to determine its width by means of graduated reference bands.

� A cell phone with a high-quality digital camera that is capable of transmitting photographs.

� A spyglass.

� Measuring tools (measuring tape, graduated card1, etc.).

� The list of telephone numbers of resource persons.

� Where applicable, a list of structures that require specific monitoring and the data corresponding to these structures.

� Where applicable, a list of structures with load limits (for verification of signage).

� Procedure PR-01: Fermeture de route à l’entretien du ministère des Transports lors de tempêtes de neige ou de situations d’urgence pouvant influencer la sécurité des usagers [Road Closingby the Ministère des Transports for Maintenance during SnowStorms or Emergency Situations Potentially Affecting User Safety].

� The local road closing procedure.

FOR ROAD PATROLLER

7MATERIAL REQUIRED FOR THE MONITORING OF STRUCTURES

APPENDICESCOURSE OUTLINE FOR PATROLLING STRUCTURES

PATROLLING REGULAR STRUCTURES – CHECKLIST

25FOR ROAD PATROLLER

APPENDICESCOURSE OUTLINE PATROLLING FOR THE MONITORING OF STRUCTURES

The patrolling course is intended to train as many resources as possible to provideassistance to personnel who are qualified in the field of structures in the promptdetection of defects or risks associated with bridges, culverts, light towers, or walls.

The objective of this course is to make it possible for persons who do not haveextensive experience in the field of structures to recognize distress indicatorswhile driving in the area surrounding a structure, and where applicable, toconduct a walk-around inspection and determine the extent and nature of thedamage. The course presents a number of basic concepts, and simulates actualcases of emergency situations in order to allow learners to practice patrolling.

TRAININGDuration of activity 1 day.

Target audience Primarily, Road Patrollers and their shift Supervisors.Secondarily, operations managers, technicians, vehicle and equipment drivers, and road workers.

Objective To train patrollers so that they can:• understand the context of patrolling and how

it is carried out;• define the various types of structures and

recognize and name the main components of a bridge;

• understand the main risks associated with structures;

• observe distress indicators while driving in the area around a structure, identify and report the source of the damage, and be able to collaborate with the Structural Engineer during the detection of distresses or risks.

Contenu • Introduction to the patrolling of structures• Bridge components• Types of structures• Emergency measures• What to observe and where

(2008.04)

27FOR ROAD PATROLLER

APPENDICESPATROLLING REGULAR STRUCTURES CHECKLIST

F310.2 (2008-04) Page 1 de 2

PATROLLING REGULAR STRUCTURES

CHECKLIST

IDENTIFICATION

Road:File or panel number:

Obstruction:Municipality:

Names of patrollers:Date/TimeName (Please print)

Date/TimeName (Please print)

TOP (OR VISIBLE PART) OF STRUCTURE

ABNORMAL SETTLING ON THE ON-RAMP:

PRESENCE OF ABNORMAL CRACKING ON THE ON-RAMP:

RUTTED DECK OR CAVITY(IES) REPRESENTING A POTENTIAL DANGER:

ABNORMAL ALIGNMENT OF A CURB, SIDEWALK, OR SAFETY BARRIER:

ABNORMAL OPENING OR VERTICAL SHIFTING OF A DECK JOINT:

YES NO

YES NO

YES NO

YES NO

YES NO

If yes, check: • bridge bearings: YES NO

• foundation unit (abutment, bridge pier):

displacement

slope YES NO

Observations :

UNDERSIDE OF STRUCTURE (BRIDGE)

DAMAGED COMPONENT REPRESENTING A POTENTIAL DANGER: YES NO

PRESENCE OF ABNORMAL CRACKING: YES NO

Observations :

NOTES ON ACTIONS UNDERTAKEN (WHERE APPLICABLE)

Comments:

This checklist is available

28 MINISTRY PROCEDUREFOR THE MONITORING OF STRUCTURES

CULVERT

THICK SLAB BRIDGE TRUSS BRIDGE

BOX GIRDER BRIDGE

PLATE GIRDER BRIDGE ARCH BRIDGE

SUSPENSION BRIDGE

OTHER TYPES OF STRUCTURES

CONCRETE CULVERTREINFORCEDCONCRETEBEAMS

STEEL BEAMS

STEEL WOODBRIDGE

STEEL CULVERT

THICK CONCRETE SLAB

TUNNEL

WALL

SIGN ANDLIGHTINGGANTRY

CONCRETE BOX GIRDERS

STEEL BOX GIRDERS COVERED BRIDGE

concrete

steel

wood

steel

ABUTMENT PIER CHAIR SPAN

bridge bearing

bridge bearingdeck joint

bridge bearing

beam

abutment pier

span

bridgebearing

deck jointcurb

beamslabdeck

safety barrier

On-rampbackfill

29FOR ROAD PATROLLER

NOTES

30 MINISTRY PROCEDUREFOR THE MONITORING OF STRUCTURES

NOTES

31FOR ROAD PATROLLER

NOTES

32 MINISTRY PROCEDUREFOR THE MONITORING OF STRUCTURES

NOTES

Monitoring of the road network refers to all of the activities required to allow for the continuous supply of adequate information pertaining to the condition and utilization of the network so that prompt action can be undertaken in order to carry out the work required to ensure the safety of and provide assistance to users and to maintain the functionality of the network and the free flow of traffic.

Within the context of its risk management process, the Ministère des Transports du Québec (MTQ) has implemented an effective procedure for the monitoring of bridges. Periodic monitoring patrols are required for bridges in order to ensure user safety and to report any anomalies that may appear during the period between general or annual inspections. This monitoring patrol, which is carried out systematically by Road Patroller, allows them to report anomalies to a Structural Engineer immediately via a direct link, so that the MTQ can intervene in time.

As outlined in this brochure, this monitoring procedure determines the relationship between Road Patroller who are patrolling for the purpose of monitoring structures and Structural Engineers when anomalies are reported.

The document also describes the involvement of the Integrated Traffic Management Centres, which are at the heart of the process.

Managers and staff of the MTQ are invited to read this document and to ensure that it is distributed and implemented as soon as possible.

June

201

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