Functionally obsolete 

2,585

Structurally deficient 

998

Aluminum, Wrought iron, or Cast iron

13

Concrete

3,340

Concrete continuous

9,006

Masonry

13

Prestressed concrete

2,322

Prestressed concrete continuous

3,017

Steel

1,841

Steel continuous

1,037

Wood or Timber

169

Other

6

Building or plaza

4

Highway

20,141

Pedestrian-bicycle

1,258

Railroad

448

Second level (interchange)

24

Third level (interchange)

2

Other

21

Highway

2,980

Pedestrian-bicycle

5

Railroad

712

Waterway

17,407

Waterway (relief)

1

Other

54

Arch - deck

214

Arch - thru

6

Box beam or Girders - multiple

927

Box beam or Girders - single or spread

1,858

Channel beam

715

Culvert

8,940

Frame

64

Girder and Floorbeam system

48

Movable - bascule

1

Segmental box girder

3

Slab

322

Stringer / Multi-beam or Girder

5,641

Tee beam

1,950

Truss - deck

10

Truss - thru

56

Other

9