Load Rating of Bridges and Culverts with Missing or Incomplete As-Built Information (2022) / Chapter Skim
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From page 73... ...
A-1 A P P E N D I X A Survey Questionnaire NCHRP 51-13 Synthesis Survey Dear AASHTO Committee on Bridges and Structures Representative: The Transportation Research Board (TRB) is preparing a synthesis on "Load Rating of Bridges and Culverts with Missing or Incomplete As-Built Information".
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A-2 Load Rating of Bridges and Culverts with Missing or Incomplete As-Built Information Here are a few tips before you begin the questionnaire If you are unable to complete the questionnaire in one sitting you can return to it at any time by reentering through the questionnaire link as long as you access the questionnaire from the same computer/device. Reentering the questionnaire will return you to the last completed question.
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Survey Questionnaire A-3 Please review these definitions before you begin the questionnaire Bridge – as defined in 23 CFR 650.305: "A structure including supports erected over a depression or an obstruction, such as water, highway, or railway, and having a track or passageway for carrying traffic or other moving loads, and having an opening measured along the center of the roadway of more than 20 feet between undercopings of abutments or spring lines of arches, or extreme ends of openings for multiple boxes; it may also include multiple pipes, where the clear distance between openings is less than half of the smaller contiguous opening." Nondestructive test – a method for estimating a geometric or physical property or the condition of a material, component, or structure that does not impact the serviceability of the tested object. Destructive test – a method for estimating a physical property or the condition of a material, component, or structure that requires removing a sample of material from the object.
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A-4 Load Rating of Bridges and Culverts with Missing or Incomplete As-Built Information Q4 Please enter your contact information: o Name: _______________________________________________ o Organization: ________________________________________________ o Job Title: ________________________________________________ o Phone Number: ________________________________________________ o Email Address: ________________________________________________ Q5 Does your state/agency have bridges in its inventory that have missing or incomplete as-built information that in some way impacts your ability to complete a load rating of the bridge? o Yes o No Skip To: Q39 If Does your state/agency have bridges in its inventory that have missing or incomplete as-built… = No Q6 Approximately what percentage of your agency's bridges have missing or incomplete as-built information?
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Survey Questionnaire A-5 Q7 Please select the types of bridges in your inventory that have missing or incomplete as-built information, and if possible, note the approximate percentage of the state's total inventory of that type (e.g., an inventory of 5000 bridges contains 1000 prestressed concrete beam/girder bridges, 200 of which are missing information, enter this as 4%) Bridges of this type, with missing information, are in the state inventory Enter % of total inventory Yes No % Reinforced concrete beam/girder Prestressed concrete beam/girder Reinforced concrete slab Reinforced concrete culvert Concrete encased steel beam/girder Rolled steel beam/girder Built-up (riveted/welded/bolted)
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A-6 Load Rating of Bridges and Culverts with Missing or Incomplete As-Built Information Q8 How would you describe the most common missing or incomplete information (you may select multiple answers) : ▢ Lack design drawings ▢ Lack as-built drawings ▢ Lack shop drawings ▢ Plans are unreadable or incomplete ▢ Missing material properties ▢ Missing rebar size, quantity, and location ▢ Missing geometric information ▢Other ________________________________________________ Q9 Does your agency currently consider the condition of the deck in load rating bridges that have missing or incomplete as-built information?
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Survey Questionnaire A-7 Q12 What load rating method does your agency use? o Load and resistance factor rating o Load factor rating o Allowable stress rating Q13 Does your agency have a formal procedure in place for load rating bridges that have missing or incomplete as-built information?
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A-8 Load Rating of Bridges and Culverts with Missing or Incomplete As-Built Information Q17 Does your agency use information about the current physical condition of the bridge to aid in the load rating of bridges that have missing or incomplete as-built information? o Yes o No Q18 Does your agency use historical information and information about bridges with plans to aid in the load rating of bridges that have missing or incomplete as-built information?
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Survey Questionnaire A-9 Q20 Use the table below to select those NDT technologies that your agency has used. Please add any that you have used that are not on the list.
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A-10 Load Rating of Bridges and Culverts with Missing or Incomplete As-Built Information Q22 Use the table below to select those destructive technologies that your agency has used. Please include any that you have used that are not on the list.
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Survey Questionnaire A-11 Q26 Does your agency follow or have a documented procedure for diagnostic load testing? o Yes o No Skip To: Q29 If Does your agency follow or have a documented procedure for diagnostic load testing?
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A-12 Load Rating of Bridges and Culverts with Missing or Incomplete As-Built Information Q30 Approximately how many bridges that have missing or incomplete as-built information have been proof load tested for the purpose of load rating? o 1 to 3 o 4 to 6 o 7 to 10 o 11 to 20 oMore than 20 Q31 Do you expect to continue to use proof load testing as a tool for assisting in the load rating of bridges that have missing or incomplete as-built information?
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Survey Questionnaire A-13 Q34 Does your agency have plans or would like to use proof load testing as a tool for assisting in the load rating of bridges that have missing or incomplete as-built information? o Yes o No Q35 Are there bridges in the state inventory that are not owned by the state?
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A-14 Load Rating of Bridges and Culverts with Missing or Incomplete As-Built Information Q36 Approximately what percentage of bridges in the state inventory are NOT owned by the state? 0 10 20 30 40 50 60 70 80 90 100 Percentage not owned by state Q37 Is the state responsible for the inspection/load rating of those bridges that are not state owned?
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