Functionally obsolete 

2,133

Structurally deficient 

1,229

Aluminum, Wrought iron, or Cast iron

7

Concrete

9,482

Concrete continuous

1,195

Masonry

150

Prestressed concrete

1,275

Prestressed concrete continuous

457

Steel

2,004

Steel continuous

974

Wood or Timber

657

Other

13

Highway

15,781

Pedestrian-bicycle

320

Railroad

82

Second level (interchange)

318

Third level (interchange)

10

Fourth level (interchange)

5

Other

1

Highway

1,332

Pedestrian-bicycle

3

Railroad

614

Waterway

13,696

Waterway (relief)

751

Other

57

Arch - deck

24

Arch - thru

8

Box beam or Girders - multiple

79

Box beam or Girders - single or spread

13

Channel beam

1,289

Culvert

6,301

Frame

27

Girder and Floorbeam system

235

Movable - lift

1

Segmental box girder

1

Slab

605

Stayed girder

1

Stringer / Multi-beam or Girder

5,704

Tee beam

1,795

Truss - deck

4

Truss - thru

108

Other

19