Functionally obsolete 

1,039

Structurally deficient 

4,968

Aluminum, Wrought iron, or Cast iron

12

Concrete

2,514

Concrete continuous

6,887

Masonry

6

Prestressed concrete

4,523

Prestressed concrete continuous

279

Steel

6,112

Steel continuous

1,888

Wood or Timber

1,961

Other

2

Highway

23,567

Pedestrian-bicycle

485

Railroad

4

Second level (interchange)

613

Third level (interchange)

3

Fourth level (interchange)

1

Highway

1,310

Pedestrian-bicycle

17

Railroad

476

Waterway

22,572

Waterway (relief)

5

Other

54

Arch - deck

91

Arch - thru

13

Box beam or Girders - multiple

20

Box beam or Girders - single or spread

1

Channel beam

409

Culvert

4,313

Frame

18

Girder and Floorbeam system

201

Mixed types

1

Movable - swing

2

Segmental box girder

1

Slab

5,013

Stayed girder

1

Stringer / Multi-beam or Girder

12,041

Suspension

3

Tee beam

1,037

Truss - deck

4

Truss - thru

974

Other

41