State of the Practice: Roundtable Workshop M
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MANAGEMENT rn B. P. P. State of the Practice: Roundtable Workshop ASSET M Wester
Transcript of State of the Practice: Roundtable Workshop M
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State of the Practice: Roundtable Workshop
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Workshop
MANAGEMENTWestern B. P. P.ASSET MWestern B. P. P.
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State of the Practice: Roundtable Workshop
• 1) What are your bridge preservation
activities?
• 2) How does your State identify bridge
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• 2) How does your State identify bridge
preservation needs? Please explain
the process
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State of the Practice: Roundtable Workshop
• 3) How is your bridge preservation activities funded? i.e. do you have a dedicated fund for the program, or funded on an as needed basis?
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State of the Practice: Roundtable Workshop
• 4) Has your state established performance goals for your bridge program (goals and measures)? If so, What are your State goals and measures? How did you go about
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measures? How did you go about establishing these measures?
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State of the Practice: Roundtable Workshop
• 5) What are some specific examples of
successful preservation strategies that
you have employed? b) What didn't
work well? c) What do you think should
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work well? c) What do you think should
be the future direction of bridge
preservation?
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State of the Practice: Roundtable Workshop
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Workshop
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State of the Practice: Roundtable Workshop
• 6) How does the bridge preservation
needs get prioritized against competing
major rehabilitation and replacement
needs?
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needs?
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State of the Practice: Roundtable Workshop
• 7) How does your State prioritize the
bridge needs in relation to other
assets, such as pavement, roadside,
etc.?
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etc.?
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State of the Practice: Roundtable Workshop
• 8) How do you capture/assess work
accomplishment?
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State of the Practice: Roundtable Workshop
• 9) What research needs do you believe
is needed in the area of bridge
preservation?
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State of the Practice: Roundtable Workshop
• 10) Is the majority of your bridge
maintenance work accomplished by
contract or state forces?
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State of the Practice: Roundtable Workshop
• 11) Approximately what percent of your
maintenance expenditures are for
reactive or corrective maintenance
versus cyclic or preventive
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versus cyclic or preventive
maintenance activities?
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State of the Practice: Roundtable Workshop
• 12) What barriers does your State have
regarding the use of new bridge
preservation products?
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State of the Practice: Roundtable Workshop
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Workshop
(Addtl Questions)
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State of the Practice: Roundtable Workshop
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Workshop
(Addtl Questions from NEBPP Mtg in Hartford, CT)
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State of the Practice: Roundtable Workshop
• 1) Bridge Maintenance/Preservation
Decision-Making
–What is the decision process your State
uses to generate a bridge
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uses to generate a bridge
maintenance/preservation program?
–What performance measures have been
established?
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State of the Practice: Roundtable Workshop
• 2) Girder Ends on Steel Bridges
–What strategies is your State using to prevent
or address deterioration at the ends of steel
girders?
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–How does your State maintain the coating
system on these bridges? How is access
gained to the area?
–Does your State wash bridges? Has special
approval been obtained from your
environmental agencies?
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State of the Practice: Roundtable Workshop
• 3) Expansion Joints
–What types of joints for small movement structures are performing well in your State?
–Which deck joints systems have not performed well in your State?
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–Which deck joints systems have not performed well in your State?
–What types of joints for large movements (greater than 4”) have worked well in your State?
–Which have not worked well in your State?
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State of the Practice: Roundtable Workshop
• 4) Decks
–What type of deck treatments are used in the State and what means are used to assess the deck condition?
– Does the State have a deck rehabilitation
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– Does the State have a deck rehabilitation program - what triggers are used to determine whether the deck is rehabilitated or replaced?
– Deck Protection – what systems does the State use to protect bridge decks?
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State of the Practice: Roundtable Workshop
• 5) HBP funds for Bridge
Maintenance
–Has your state requested and obtained
approval to use HBP funding for
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approval to use HBP funding for
Maintenance?
–What types of projects has your state let
with Fed-aid?
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State of the Practice: Roundtable Workshop
• 6) Contracting Bridge Maintenance
–What contract types are used by bridge
maintenance forces?
–Discuss your state’s specifications
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–Discuss your state’s specifications
for: expansion joints, maintenance
coatings, washing, sealing, bearing
lubrication.
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State of the Practice: Roundtable Workshop
• 7) Relationship with local agencies
– What is the relationship between your state
and your local bridge maintenance groups?
–Does your state review/establish/recommend
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–Does your state review/establish/recommend
maintenance actions to local owners?
–Do state and local owners meet to discuss
bridge maintenance issues/strategies?
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State of the Practice: Roundtable Workshop
• 8) State Forces
–How are your state’s bridge maintenance
forces activities recorded?
–Are performance measure established for
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–Are performance measure established for
state forces?
–What type of accomplishment reports are
generated?
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State of the Practice: Roundtable Workshop
–What are the goals for your bridge
maintenance program?
–How does your agency program bridge
preservation and maintenance work?
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preservation and maintenance work?
–How does your agency execute the
bridge preservation and maintenance
work?
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State of the Practice: Roundtable Workshop
– What are your procedures for
identification of emergency maintenance
needs?
–What are your procedures for
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–What are your procedures for
environmental reports and permits
required in bridge maintenance and
preservation work?
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State of the Practice: Roundtable Workshop
- How are the completed maintenance and
preservation activities are communicated to
the bridge inspectors or managers?
– Do you perform final acceptance
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– Do you perform final acceptance
inspections on these activities?
–How does completed maintenance
change condition ratings for bridges
or elements
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State of the Practice: Roundtable Workshop
-Does your agency have any backlog of
bridge maintenance and preservation
needs? If yes, what is the magnitude, in
dollars, of the backlog of maintenance
needs?
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needs?
- How do you evaluate the effectiveness of
bridge maintenance activities?
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State of the Practice: Roundtable Workshop
–Has your agency developed a Bridge
Maintenance Quality Control / Quality
Assurance Program? What criteria are
employed, such as: timeliness, cost
effectiveness, use of resources, etc.?
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effectiveness, use of resources, etc.?
–What is the agency’s annual bridge
maintenance and preservation budget?
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State of the Practice: Roundtable Workshop
–What percentage of your total budget is
spent on bridge preservation and
maintenance activities? What is the
ideal percentage that should be spent on
these types of activities?
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these types of activities?
–Does your agency have an approved
systematic process for bridge
preservation?
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Proposed additions to AASHTO Transportation Glossary
• Bridge rehabilitation is the “work required to restore the structural integrity of a bridge as well as work necessary to correct major safety defects” The work can be done on multiple elements and/or components. Functional improvements such as widening, increasing vertical clearance and structural improvements are included in this category. Bridge rehabilitation projects are generally aimed at improving the condition rating of the structure. Bridge rehabilitation is not considered a preservation activity.
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• Bridge rehabilitation projects provide complete or nearly complete restoration of bridge elements or components. These projects typically require engineering resources for design, a lengthy completion schedule, and considerable costs. Most rehabilitation projects include repairs to several bridge components but can be limited to bridge deck replacement.
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Proposed additions to AASHTO Transportation Glossary
• Bridge replacement involves the “total replacement
of a structurally deficient or functionally obsolete
bridge with a new facility constructed in the same
general traffic corridor.” Bridge replacement is
required when the service life of the structure is
exhausted or it has become functionally obsolete.
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exhausted or it has become functionally obsolete.
Bridge replacement is not a preservation activity.
• Bridge replacement projects require engineering
resources for design, a length completion schedule,
and considerable costs.
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Proposed additions to AASHTO Transportation Glossary
• Major repairs consist of structural repairs, typically aimed at the complete or near complete restoration of the element or elements. Major repairs typically involve repairs to a bridge component. The structural repair of bridge substructures or a deck overlay is considered major repairs. As major repairs typically aim to improve the structural or
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repairs typically aim to improve the structural or operation adequacy of a structure, they are not considered a preservation activity.
• Major repairs will improve the condition rating of the component and improve the condition rating of the structure.
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Proposed additions to AASHTO Transportation Glossary
• Bridge Preservation: consists of activities
performed on bridges elements or components
that aim to prevent, delay, or mitigate damage or
deterioration. Preservation actions may be
scheduled or condition driven. Bridge
preservation activities do not entail structural or
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preservation activities do not entail structural or
operational improvements of an existing bridge
asset beyond its originally designed strength or
capacity.
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Proposed additions to AASHTO Transportation Glossary
• An effective bridge preservation program will address bridges while they are still in good condition and before the onset of serious deterioration. By applying a cost-effective treatment at the right time, the service life of the bridge is extended. The cumulative effect of systematic, successive preservation treatments is to postpone costly reconstruction. During the life of a bridge, the cumulative discount value of the series of bridge preservation
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discount value of the series of bridge preservation treatments is substantially less than the discounted value of the large cost of reconstruction and generally more economical than the cost of major rehabilitation. Additionally, performing a series of successive bridge preservation treatments during the life of a bridge is less disruptive to uniform traffic flow than the long closures normally associated with reconstruction projects.
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Proposed additions to AASHTO Transportation Glossary
• Preventive Maintenance “is directed at performing activities that will preserve bridge components in their present (or intended) condition, forestalling development of a structural deficiency.” Preventive maintenance is typically applied to bridge elements on structures with significant remaining service life. As a major component of bridge preservation, preventive maintenance is a strategy of extending the service life by applying cost-effective treatments to structurally sound bridges. The concept of preventive bridge maintenance
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bridges. The concept of preventive bridge maintenance suggests that many relatively small repairs and activities are performed to keep the bridge in good condition, retard future deterioration, and avoid large expenses in major bridge rehabilitation or bridge replacements.
• AASHTO Maintenance Manual for Highway and Bridges 2007, § 3.1.1.3 Bridge Maintenance Concepts page 131.
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Proposed additions to AASHTO Transportation Glossary
• Preventive maintenance activities can be classified into two groups: scheduled and response.
• “Scheduled maintenance (programmed at intervals)”. These activities are performed on a pre-determined interval and aim to maintain existing bridge element condition. Bridge element or component ratings are not directly improved as a result of scheduled maintenance
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directly improved as a result of scheduled maintenance activities.
• Examples of scheduled maintenance activities include bridge washing, bearing lubrication, and deck sealing. Scheduled activities are typically done on bridges rated good or fair. Candidate structures are typically selected using inventory data as opposed to condition ratings.
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Proposed additions to AASHTO Transportation Glossary
• Preventive maintenance activities can be classified into two groups: scheduled and response.
• Response maintenance actions are activities “done as needed and identified through the inspection process”. Response maintenance performed on a non-deficient bridge to restore a bridge element to an acceptable level of service is a preservation activity. Response repairs will
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of service is a preservation activity. Response repairs will improve the condition rating of the element without significantly or only minimally improving the condition rating of the structure.
• Typical projects in this category include small volume non-structural concrete repairs of deteriorated substructure elements, resealing expansion joints, painting structural steel members, replacing wearing surfaces.
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Proposed additions to AASHTO Transportation Glossary
• Intervention Maintenance consists of activities aimed at reducing the potential for element or component level deterioration prior to or at the onset of discernable damage. Intervention maintenance is performed on bridges with significant remaining service life, on marginally deficient or non-deficient elements in a proactive manner to avoid more significant damage.
• Examples of type of intervention maintenance are: replacing rust-prone steel sliding bearings with elastomeric
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replacing rust-prone steel sliding bearings with elastomeric bearings, retrofitting fracture critical details on steel members, and armor-plating scour vulnerable foundations.
• Typical of preservation activities, intervention maintenance involves minimal disruptions to traffic and results in the complete or near complete restoration of the bridge elements. Intervention maintenance is bridge preservation activity.
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Proposed additions to AASHTO Transportation Glossary
• Operational maintenance involves activities such as
snow and ice removal, dead animal removal, operating
movable bridges, and removal of graffiti. These
activities generally involve a service request and are not
aimed at preserving the asset or making structural
improvements. Operational maintenance includes
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improvements. Operational maintenance includes
incident response activities aimed at providing
functionality to a highway system through the
stabilization or temporary repair of a damaged asset.
Operational maintenance is not considered preservation
activities.
