note: for an explanation of each nbi item and its
TRANSCRIPT
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NOTE: FOR AN EXPLANATION OF EACH NBI ITEM AND ITS ASSOCIATED RATING VALUE, SEE THE CURRENT EDITION OF THE FEDERAL PUBLICATION "RECORDING AND CODING GUIDE FOR THE STRUCTURE INVENTORY AND APPRAISAL OF THE NATION'S BRIDGES". FOR A COPY OF THIS PUBLICATION SEE:
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NOTE: THE NATIONAL BRIDGE INVENTORY (NBI) NUMBERS ARE IN PARENTHESIS.
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www.fhwa.dot.gov/bridge/mtguide.pdf
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AT LEAST 20 FEET LONG. QUALIFIES TO BE LISTED IN THE INVENTORY OF BRIDGES
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LEVEL OF LIVE LOADING USED IN DESIGN OF BRIDGE.
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MAXIMUM WEIGHT FOR 2 AXLE VEHICLES
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A GENERAL SCORE FOR THE BRIDGE. VALUES RANGE FROM 0 TO 100. IF LESS THAN 80, BRIDGE QUALIFIES FOR REHABILITATION IF LESS THAN 50, BRIDGE QUALIFIES FOR REPLACEMENT
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MAXIMUM WEIGHT FOR VEHICLES WITH 3 OR MORE AXLES
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STATUS OF WEIGHT POSTING SIGNS AT THE TIME OF THE LAST INSPECTION
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GENERAL STRUCTURAL SCORE
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CLEARANCE RATING FOR TRAFFIC LANES ON THE BRIDGE
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CLEARANCE RATING FOR TRAFFIC LANES UNDER THE BRIDGE
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RATING HOW WELL THE WATER CAN GET PAST THE BRIDGE
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RATING HOW WELL THE BRIDGE LAYOUT FITS THE GENERAL ROADWAY ALIGNMENT
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BRIDGERAIL AND APPROACH GUARDRAIL RATINGS
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HOW WELL THE BRIDGE RESISTS SCOUR
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UNIQUE BRIDGE IDENTIFIER NUMBER USED IN REPORTING TO FEDERAL GOVERNMENT
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EXAMPLE REPORT
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CONDITION RATINGS - SEE CODING GUIDE REFERENCE BELOW
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APPRAISAL ITEMS - SEE CODING GUIDE REFERENCE BELOW
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MONTH/DAY/YEAR FORMAT
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MONTH/YEAR FORMAT
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MONTH/YEAR FORMAT
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REGULAR INSPECTION DUE EVERY 24 MONTHS
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UNDERWATER INSPECTION DUE EVERY 60 MONTHS
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SPECIAL INSPECTION DUE EVERY 6 MONTHS
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