Functionally obsolete 

649

Structurally deficient 

214

Aluminum, Wrought iron, or Cast iron

9

Concrete

566

Concrete continuous

4,919

Masonry

1

Prestressed concrete

922

Prestressed concrete continuous

961

Steel

571

Steel continuous

330

Wood or Timber

36

Building or plaza

2

Highway

7,698

Pedestrian-bicycle

2,105

Railroad

56

Second level (interchange)

436

Third level (interchange)

14

Fourth level (interchange)

10

Other

17

Highway

1,350

Pedestrian-bicycle

10

Railroad

137

Waterway

6,900

Waterway (relief)

1

Other

51

Arch - deck

44

Arch - thru

3

Box beam or Girders - multiple

438

Box beam or Girders - single or spread

640

Channel beam

11

Culvert

4,490

Frame

101

Girder and Floorbeam system

44

Segmental box girder

10

Slab

893

Stringer / Multi-beam or Girder

1,428

Tee beam

155

Truss - deck

9

Truss - thru

46

Other

3