Functionally obsolete 

4,511

Structurally deficient 

1,942

Aluminum, Wrought iron, or Cast iron

107

Concrete

5,352

Concrete continuous

2,626

Masonry

95

Prestressed concrete

7,310

Prestressed concrete continuous

753

Steel

6,735

Steel continuous

6,021

Wood or Timber

137

Other

24

Building or plaza

4

Highway

27,924

Pedestrian-bicycle

1,879

Railroad

717

Second level (interchange)

350

Third level (interchange)

14

Fourth level (interchange)

5

Other

29

Highway

5,239

Pedestrian-bicycle

33

Railroad

1,255

Waterway

23,212

Waterway (relief)

55

Other

70

Arch - deck

374

Arch - thru

21

Box beam or Girders - multiple

7,758

Culvert

1,950

Frame

841

Girder and Floorbeam system

720

Movable - bascule

5

Movable - lift

5

Movable - swing

3

Orthotropic

2

Slab

4,112

Stayed girder

10

Stringer / Multi-beam or Girder

11,242

Suspension

2

Tee beam

950

Truss - deck

18

Truss - thru

1,120

Other

27