The National Academies Press

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Pages 6-21

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From page 6... ... Numbering systems for maintenance actions exist in three forms: as maintenance operation items used by maintenance management systems, as action items used by maintenance crews, and as pay items for contract maintenance. Some DOTs employ multiple numbering systems. Read the entire page →
From page 7... ... Maintenance Defined by Lists of Actions A review of maintenance actions presented by AASHTO and by state DOTs reveals seven common operations in bridge maintenance (Exhibit 1) Read the entire page →
From page 8... ... Contract Maintenance Contracts for bridge maintenance work include site contracts that deliver a fixed schedule of repairs at a fixed set of bridges, open-ended contracts that provide specified maintenance actions, and asset management contracts that provide a level of service along a route (Table 1) Read the entire page →
From page 9... ... Terms in Bridge Maintenance This section reports a set of frequently used terms in bridge maintenance. Chapter 6 provides a glossary of terms collected from DOT maintenance manuals and guides. Read the entire page →
From page 10... ... Road Surveys report presence of debris, graffiti, and other deficiencies in upkeep along routes and at bridges. Similar data may be called maintenance assurance values, maintenance quality data, or simply field data. Read the entire page →
From page 11... ... A summary of categories of bridge maintenance work and maintenance actions reported by AASHTO and state DOTs are provided in several tables in Appendix A AASHTO Maintenance Manual The AASHTO maintenance manual (2) Read the entire page →
From page 12... ... . California maintenance actions include cleaning, coating, repair, rehabilitation, and replacement of bridge components. Read the entire page →
From page 13... ... includes bridge painting, joint repairs, and rehabilitation of decks. Ohio DOT Ohio DOT's bridge maintenance actions are collected from the on-line Bridge Maintenance Manual (29) Read the entire page →
From page 14... ... Programmatic permit guides are provided for the following: • Bridge Maintenance Washing and Cleaning, • Bridge and Ferry Terminal Deck Overlay Replacement, • Bridge and Ferry Terminal Deck and Drain Cleaning, • Bridge General Maintenance and Repair, and • Bridge Paint-Prep Washing and Blasting. Summary and Maintenance Actions -- Existing Practice Maintenance operations at most DOTs include cleaning, coating, and repairs. Read the entire page →
From page 15... ... and in the forms used for reporting crew maintenance work and contract maintenance. Maintenance by DOT Crews A primary source of data for work by DOT crews is the crew card (also called day card, daily work report, daily time card, etc.) Read the entire page →
From page 16... ... – Quantities of materials • Work Accomplishment – Work unit – Number of units accomplished Crew cards identify the maintenance yard, date of work, and crew leader. The crew card may include a job or authorization 16 Figure 1. Read the entire page →
From page 17... ... . 17 Field Data Office Data Office Computation Employee names, job titles, and hours Employee hourly rates Labor cost Equipment types, IDs, and usage Equipment rates Equipment cost Material types, items and quantities Material unit costs Material cost Table 3. Read the entire page →
From page 18... ... NBI and maintenance operations: channel. Bridge Element Condition State Concrete Deck Steel Beam Concrete Substructure 1 Clean, Seal surface Clean Clean 2 Patch, Seal cracks, Seal surface Spot paint Patch, Seal cracks, Seal surface 3 Patch Spot paint, Full paint Patch 4 Patch, Replace Portion, Modify protection Full paint, Repair, Patch, Replace Portion, Modify protection 5 Patch, Modify protection, Replace Entire Repair, Replace Patch, Modify protection, Replace Entire Table 4. Read the entire page →
From page 19... ... For MMS, each module combines diverse inputs on conditions of structures, maintenance actions, financial resources, physical resources, public input/perceptions, DOT policies, and DOT goals. Planning. Read the entire page →
From page 20... ... DOTs with HMMS distinguish between activities for planning purposes and for recording work accomplishments. HMMS originally provided for recording short lists of maintenance activities, but evolved to record activities plus work methods, in effect multiplying the number of distinct maintenance actions that HMMS could track. Read the entire page →
From page 21... ... Current practices in bridge maintenance programs have implications for a national database system for bridge maintenance data. A national system must resolve the different numbering systems for maintenance actions used by DOTs. Read the entire page →

From page 6...

... Numbering systems for maintenance actions exist in three forms: as maintenance operation items used by maintenance management systems, as action items used by maintenance crews, and as pay items for contract maintenance. Some DOTs employ multiple numbering systems.