Functionally obsolete 

289

Structurally deficient 

344

Aluminum, Wrought iron, or Cast iron

8

Concrete

310

Concrete continuous

973

Prestressed concrete

235

Prestressed concrete continuous

15

Steel

618

Steel continuous

845

Wood or Timber

170

Highway

2,809

Pedestrian-bicycle

143

Railroad

46

Second level (interchange)

317

Third level (interchange)

3

Highway

599

Railroad

153

Waterway

2,261

Waterway (relief)

1

Other

215

Arch - deck

6

Box beam or Girders - multiple

46

Box beam or Girders - single or spread

5

Channel beam

9

Culvert

485

Frame

34

Girder and Floorbeam system

47

Mixed types

1

Segmental box girder

1

Slab

458

Stringer / Multi-beam or Girder

1,581

Tee beam

439

Truss - deck

4

Truss - thru

52

Other

6