Functionally obsolete 

74

Structurally deficient 

44

Aluminum, Wrought iron, or Cast iron

2

Concrete

125

Concrete continuous

8

Masonry

4

Prestressed concrete

170

Prestressed concrete continuous

24

Steel

99

Steel continuous

35

Wood or Timber

7

Highway

474

Pedestrian-bicycle

44

Highway

80

Railroad

16

Waterway

392

Arch - deck

6

Box beam or Girders - multiple

59

Box beam or Girders - single or spread

53

Channel beam

3

Culvert

58

Frame

7

Girder and Floorbeam system

4

Slab

24

Stringer / Multi-beam or Girder

194

Suspension

1

Tee beam

52

Truss - thru

13