Functionally obsolete 

1,932

Structurally deficient 

2,243

Aluminum, Wrought iron, or Cast iron

35

Concrete

6,633

Concrete continuous

2,226

Masonry

18

Prestressed concrete

10,319

Prestressed concrete continuous

511

Steel

3,417

Steel continuous

4,493

Wood or Timber

107

Other

24

Building or plaza

1

Highway

25,634

Pedestrian-bicycle

75

Railroad

1,009

Second level (interchange)

1,047

Third level (interchange)

22

Other

10

Highway

3,925

Pedestrian-bicycle

40

Railroad

1,205

Waterway

22,945

Waterway (relief)

52

Other

141

Arch - deck

78

Arch - thru

21

Box beam or Girders - multiple

9,174

Box beam or Girders - single or spread

67

Channel beam

1,562

Culvert

4,712

Frame

215

Girder and Floorbeam system

424

Movable - bascule

50

Movable - lift

4

Movable - swing

2

Orthotropic

3

Segmental box girder

6

Slab

2,101

Stayed girder

7

Stringer / Multi-beam or Girder

8,123

Suspension

4

Tee beam

382

Truss - deck

39

Truss - thru

204

Other

605