Functionally obsolete 

16

Structurally deficient 

12

Aluminum, Wrought iron, or Cast iron

1

Concrete

63

Concrete continuous

5

Prestressed concrete

49

Prestressed concrete continuous

11

Steel

11

Steel continuous

3

Wood or Timber

1

Highway

144

Pedestrian-bicycle

1

Highway

7

Railroad

1

Waterway

136

Box beam or Girders - multiple

46

Box beam or Girders - single or spread

4

Channel beam

12

Culvert

36

Girder and Floorbeam system

2

Slab

2

Stringer / Multi-beam or Girder

23

Tee beam

17

Truss - thru

2