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Bridge
Classifications
On
this page:
• National
Highway System Classification
• Federal
Functional Classification
• State
Functional Classification
• Legal
Load Classification
NATIONAL
HIGHWAY SYSTEM CLASSIFICATION
| STATE
HIGHWAY
SYSTEM BRIDGES |
| CLASSIFICATION |
NUMBER
OF BRIDGES
|
PERCENT
OF TOTAL
|
| ON
SYSTEM |
955
|
15.1
|
| OFF
SYSTEM |
5,360
|
84.9
|
| TOTAL |
6,315
|
100.0
|
FEDERAL FUNCTIONAL CLASSIFICATION
| STATE
HIGHWAY
SYSTEM BRIDGES |
| CLASSIFICATION |
NUMBER
OF BRIDGES
|
PERCENT
OF TOTAL
|
| Rural
Principal Arterial - Interstate |
380
|
6.0
|
| Rural
Principal Arterial - Other |
243
|
3.8
|
| Rural
Minor Arterial |
438
|
6.9
|
| Rural
Major Collector |
1,644
|
26.0
|
| Rural
Minor Collector |
461
|
7.3
|
| Rural
Local |
2,572
|
40.7
|
| Urban
Principal Arterial - Interstate |
186
|
2.9
|
| Urban
Principal Arterial - Other Freeways & Expressways |
108
|
1.7
|
| Urban
Other Principal Arterial |
39
|
0.6
|
| Urban
Minor Arterial |
117
|
1.9
|
| Urban
Collector |
64
|
1.0
|
| Urban
Local |
63
|
1.0
|
| TOTAL |
6,315
|
100.0
|
STATE
FUNCTIONAL CLASSIFICATION
| STATE
HIGHWAY
SYSTEM BRIDGES |
| CLASSIFICATION |
NUMBER
OF BRIDGES
|
PERCENT
OF TOTAL
|
| EXPRESSWAY |
816
|
12.9
|
| TRUNKLINE |
454
|
7.2
|
| FEEDER |
858
|
13.6
|
| LOCAL
SERVICE |
4,187
|
66.3
|
| TOTAL |
6,315
|
100.0
|
LEGAL ROAD LOAD
CLASSIFICATION
| STATE
HIGHWAY
SYSTEM BRIDGES |
| CLASSIFICATION |
NUMBER
OF BRIDGES
|
PERCENT
OF TOTAL
|
| 65,000
Pounds |
4,737
|
75.0
|
| 73,500
Pounds |
697
|
11.0
|
| 80,000
Pounds |
881
|
14.0
|
| TOTAL |
6,315
|
100.0
|
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