State Bridge Load Posting Processes and Practices (2014) / Chapter Skim
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15 chapter two MANAGEMENT OF LOAD POSTING OF BRIDGES AND CULVERTS Chapter two reports on state government authority to post structures for load, the role of state government in load posting of structures owned by local governments, load rating staff at DOTs, use of safety inspections and general condition ratings in load posting, time intervals to identify and implement load postings, quality practices in load posting, signs for weight limits at posted structures, and fines for violation of weight limits. The content of this chapter is summarized here: Authority to Post for Load State governments have the authority to post state-owned bridges and culverts for load.
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16 mend posting for load. In Illinois, the state DOT, acting at the request of a local authority or acting on its own, can determine and post weight limits on structures that are part of a mainline highway (9)
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17 inspection coordinators of damage or safety concerns (21)
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18 TIME INTERVALS FOR LOAD POSTING Background The time interval from an initial recommendation to consider load posting to the installation and verification of weight limit signs ranges from less than one week to more than one year (see Table A7)
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19 load rating computations. Many states collect photographs of weight limit signs at structures as verification of load posting.
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20 WEIGHT LIMIT SIGNS The U.S.DOT Manual of Uniform Traffic Control Devices includes five standard signs for weight restrictions on highway structures (47) (Figure 1)
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21 Installation of Weight Limit Signs In 24 survey states, central office staff of the DOT direct installation of weight limit signs at structures posted for load (Table 39)
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22 Staff Verifying Weight Limit Signs States Count Safety Inspectors Only 36 Maintenance Crews Only 2 Both Safety Inspectors and Maintenance Crews 5 TABLE 40 SUMMARY -- VERIFICATION OF WEIGHT LIMIT SIGNS Weight Limit Signs at Restricted Bridges States Count Yes 8 No 35 TABLE 41 SUMMARY -- WEIGHT LIMIT SIGNS FOR PERMIT LOADS and for violation of limits on gross weights. Some states have separate schedules for specific commodities or for repeat offenses.
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23 TABLE 42 RANGE OF OVERWEIGHT FINES State Overweight Range, lb Overweight Fine, $/lb Note Arizona (53) 1,000–5,000 0.10–0.29 Colorado (54)
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24 Notes on State Government Role in Load Posting for Locally Owned Bridges Florida advises local owners of the need to post structures for load. If the owner does not respond within 30 days, the state of Florida will post structures for load (18)
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25 local government submits updated load rating calculations to the State Bridge Operations Engineer, and (3) the State Bridge Operations Engineer approves the change.
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26 intervals for updating load ratings in bridge databases, for coordination among DOT branches in the course of load rating and posting, for response by local governments to states' advice to post for load, and for verification of weight limit signs at structures. QC and QA practices for safety inspections and for load rating support the quality needs in load posting.
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