Functionally obsolete 

981

Structurally deficient 

2,361

Aluminum, Wrought iron, or Cast iron

9

Concrete

4,194

Concrete continuous

1,288

Masonry

2

Prestressed concrete

1,393

Prestressed concrete continuous

159

Steel

6,765

Steel continuous

702

Wood or Timber

978

Other

9

Building or plaza

1

Highway

15,111

Pedestrian-bicycle

243

Railroad

114

Second level (interchange)

220

Third level (interchange)

3

Other

2

Highway

697

Pedestrian-bicycle

2

Railroad

285

Waterway

14,644

Waterway (relief)

3

Other

9

Arch - deck

45

Arch - thru

4

Box beam or Girders - multiple

30

Box beam or Girders - single or spread

3

Channel beam

137

Culvert

3,665

Frame

20

Girder and Floorbeam system

417

Segmental box girder

2

Slab

1,494

Stringer / Multi-beam or Girder

8,224

Tee beam

697

Truss - deck

3

Truss - thru

750

Other

8