Functionally obsolete 

863

Structurally deficient 

964

Aluminum, Wrought iron, or Cast iron

10

Concrete

4,894

Concrete continuous

546

Masonry

4

Prestressed concrete

2,200

Prestressed concrete continuous

308

Steel

971

Steel continuous

390

Wood or Timber

80

Other

76

Highway

9,124

Pedestrian-bicycle

390

Railroad

102

Second level (interchange)

233

Fourth level (interchange)

2

Other

2

Highway

1,120

Railroad

475

Waterway

7,952

Waterway (relief)

30

Other

40

Arch - deck

50

Box beam or Girders - multiple

43

Box beam or Girders - single or spread

9

Channel beam

40

Culvert

1,090

Frame

5

Girder and Floorbeam system

15

Mixed types

1

Movable - bascule

3

Movable - swing

6

Segmental box girder

2

Slab

4,348

Stayed girder

1

Stringer / Multi-beam or Girder

2,934

Tee beam

813

Truss - thru

38

Other

81