Named bridges

United States National Bridge Inventory

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Ketchikan Gateway Borough, Alaska Statistics

Bridge count: 83


Click on a count to view bridges.



Status

Functionally obsolete 

41

Structurally deficient 

15

Material

Aluminum, Wrought iron, or Cast iron

1

Concrete

2

Prestressed concrete

18

Steel

33

Steel continuous

1

Wood or Timber

28

Service on bridge

Highway

81

Pedestrian-bicycle

15

Other

1

Service under bridge

Highway

2

Waterway

70

Waterway (relief)

2

Other

9

Design

Box beam or Girders - multiple

10

Culvert

2

Girder and Floorbeam system

1

Orthotropic

2

Slab

14

Stringer / Multi-beam or Girder

38

Tee beam

14

Truss - thru

2



Data from the United States National Bridge Inventory (NBI) (2016)