Functionally obsolete 

1,761

Structurally deficient 

2,151

Aluminum, Wrought iron, or Cast iron

4

Concrete

9,184

Concrete continuous

5,793

Masonry

160

Prestressed concrete

422

Prestressed concrete continuous

918

Steel

4,788

Steel continuous

2,952

Wood or Timber

831

Other

3

Highway

25,011

Pedestrian-bicycle

887

Railroad

25

Third level (interchange)

7

Other

1

Highway

1,775

Pedestrian-bicycle

1

Railroad

466

Waterway

23,079

Waterway (relief)

10

Other

29

Arch - deck

157

Arch - thru

31

Box beam or Girders - multiple

337

Channel beam

11

Culvert

8,277

Frame

44

Girder and Floorbeam system

338

Slab

5,172

Stringer / Multi-beam or Girder

8,659

Tee beam

1,718

Truss - deck

11

Truss - thru

285

Other

15