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Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000


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Bridges & Structures

Attachment 5: Proposed revisions to Coding Guide Item 67 table to allow rating factor

Attachment 5: Proposed revisions to Coding Guide Item 67 table to allow rating factor: NBI Item 67 revised for Rating Factor

Item 67 - Structural Evaluation (cont'd)

Table 1. Rating by Comparison of ADT - Item 29 and Inventory Rating - Item 66
Structural Evaluation Rating Code Inventory Rating
Average Daily Traffic (ADT)
0-500 501-5000 > 5000
9> 32.4
(MS18)*
> 32.4
(MS18)
> 32.4
(MS18)
832.4
(MS18)
32.4
(MS18)
32.4
(MS18)
727.9
(MS15.5)
27.9
(MS15.5)
27.9
(MS15.5)
620.7
(MS11.5)
22.5
(MS12.5)
24.3
(MS13.5)
516.2
(MS9)
18.0
(MS10)
19.8
(MS11)
410.8
(MS6)
12.6
(MS7)
16.2
(MS9)
3Inventory rating less than value in rating code of 4 and requiring corrective action.
2Inventory rating less than value in rating code of 4 and requiring replacement.
0Bridge closed due to structural condition.

*MS Designation (typical)

Item 67 - Structural Evaluation (cont'd) (Revised for Rating Factor)

Table 1. Rating by Comparison of ADT - Item 29 and Inventory Rating - Item 66
Structural Evaluation Rating Code Inventory Rating
Average Daily Traffic (ADT)
0-500 501-5000 > 5000
9> 1.00> 1.00> 1.00
81.001.001.00
70.860.860.86
60.640.640.64
50.500.500.50
40.330.330.33
3Inventory rating less than value in rating code of 4 and requiring corrective action.
2Inventory rating less than value in rating code of 4 and requiring replacement.
0Bridge closed due to structural condition.
Updated: 08/21/2013
Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000