00941392

Component

http://onlinepubs.trb.org...nepubs/circulars/ec049.pdf

There are more than 484,000 bridges over waterways in the U.S. Bridge Inventory. In 1988 the Federal Highway Administration (FHWA) issued a Technical Advisory (TA) to guide states in evaluating bridges over waterways for vulnerability to failure from scour. The evaluation to date has identified 26,140 bridges as scour-critical. These bridges require replacement or countermeasures to protect them from failure. The TA recommends that a Plan of Action (POA) be developed for each scour-critical bridge. Monitoring a bridge for scour, combined with a POA that details procedures if scour threatens a bridge, is an acceptable countermeasure. Research sponsored by the FHWA and Transportation Research Board has developed several fixed and portable scour-monitoring instruments. Fixed instruments are low-cost sonar, buried stainless steel pipe with a magnetic sliding collar, and float-out cylinders with radio transmitters. These instruments can use solar panel with battery for power, data loggers to store the data, and telemetry to send the data to central locations so personnel can act if the bridge is in danger of failure. The portable instruments include sounding weights, rods, fathometers, and geophysical devices. This study describes the instruments and experience with their installation.

Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

E-C049,
IBMC03-036
IBMC03-041

English

p. 292-305

2003-4

Transportation Research Circular

9th International Bridge Management Conference

Figures (1) ; References (23) ; Tables (2)

Bridges; Case studies; Countermeasures; Evaluation and assessment; Instrumentation; Monitoring; Scour; State departments of transportation

Bridge management; Plan of action

Bridges and other structures; Design; Highways; Safety and Human Factors; I24: Design of Bridges and Retaining Walls

TRIS, TRB

Apr 21 2003 12:00AM

• ADDRESSING UNCERTAINTIES IN BRIDGE MANAGEMENT WITH INFLUENCE DIAGRAMS
• ASSESSING THE SAFETY AND SERVICEABILITY OF EXISTING HIGHWAY STRUCTURES
• ASSET NEEDS FROM THE BOTTOM UP
• BRIDGE EXPERT ANALYSIS AND DECISION SUPPORT SYSTEM
• BRIDGE MANAGEMENT SYSTEM FOR CITY OF MOSCOW
• BRIDGE MANAGEMENT THROUGH THE INTERNET WITH DANBROWEB
• BRIDGE TESTING TO ENHANCE BRIDGE MANAGEMENT IN DELAWARE
• CONDITION-BASED BRIDGE ASSET VALUATION
• CUSTOMIZATION OF THE PONTIS BRIDGE MANAGEMENT SYSTEM FOR A TRANSIT AGENCY
• DETERMINATION OF BRIDGE DETERIORATION MATRICES WITH STATE NATIONAL BRIDGE INVENTORY DATA
• ECONOMETRIC MODEL FOR PREDICTING DETERIORATION OF BRIDGE DECK EXPANSION JOINTS
• FLORIDA PROJECT-LEVEL MODELS FOR PONTIS
• FORECASTING LIFETIME SAFETY AND SERVICEABILITY FOR MANAGEMENT OF A NETWORK OF HIGHWAY BRIDGES IN COLORADO
• IMPLEMENTATION OF ONTARIO BRIDGE MANAGEMENT SYSTEM
• INTEGRATION OF AASHTO'S BRIDGEWARE PRODUCTS
• LIFE-CYCLE COST APPROACH TO BRIDGE MANAGEMENT IN THE NETHERLANDS
• LIFE-CYCLE MANAGEMENT OF CONCRETE INFRASTRUCTURES FOR IMPROVED SUSTAINABILITY
• MAINTENANCE STRATEGY TO MINIMIZE BRIDGE LIFE-CYCLE COSTS
• METHODOLOGY FOR PREDICTION OF CONDITION OF CONCRETE BRIDGE DECKS AT NETWORK LEVEL
• NEW BRIDGE PERFORMANCE MEASURES FOR PRIORITIZING BRIDGES
• PERFORMANCE-BASED PROGRAMMING OF BRIDGES IN NEW JERSEY
• PHYSICAL MODELING OF SCOUR IN BRIDGE MANAGEMENT
• PONTIS BRIDGE MANAGEMENT SYSTEM: STATE OF THE PRACTICE IN IMPLEMENTATION AND DEVELOPMENT
• PONTIS-BASED HEALTH INDEXES FOR BRIDGE PRIORITY EVALUATION
• PREDICTION OF DETERIORATION: START APPLICATION OF DEICING AGENT TAKEN INTO ACCOUNT
• STATEWIDE IMPLEMENTATION OF A BRIDGE MANAGEMENT SYSTEM AS PART OF INTEGRATED ASSET MANAGEMENT IN KENTUCKY
• STRUCTURAL PATCH REPAIR OF CONCRETE STRUCTURES: TOWARD THE DEVELOPMENT OF A RISK-BASED IMPLEMENTATION PROCEDURE
• SUPPLY AND DEMAND SYSTEM APPROACH TO DEVELOPING BRIDGE MANAGEMENT STRATEGIES: COMPARISON WITH TWO EXISTING APPROACHES
• SYNCHRONIZING AN AGENCY'S BRIDGE INFORMATION BETWEEN MULTIPLE VENDOR SYSTEMS: KANSAS DEPARTMENT OF TRANSPORTATION APPROACH
• SYNTHESIS OF ELEMENT CONDITION DATA FOR AGGREGATE ANALYSES IN BRIDGE MANAGEMENT SYSTEMS
• SYSTEM RELIABILITY MODELING IN BRIDGE MANAGEMENT
• TISBO INFRASTRUCTURE MAINTENANCE MANAGEMENT SYSTEM: INTEGRATING INSPECTION REGISTRATION AND MAINTENANCE MANAGEMENT
• UPDATING TIME-DEPENDENT RELIABILITY OF HIGHWAY BRIDGES WITH PONTIS BRIDGE MANAGEMENT SYSTEM INSPECTION RESULTS
• WEB-BASED BRIDGE MANAGEMENT SYSTEM