Named bridges

United States National Bridge Inventory

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National Statistics

Bridge count: 627,287


Status

Functionally obsolete 

83,752

Structurally deficient 

56,006

Material

Aluminum, Wrought iron, or Cast iron

1,777

Concrete

181,254

Concrete continuous

77,502

Masonry

1,733

Prestressed concrete

130,468

Prestressed concrete continuous

26,658

Steel

135,437

Steel continuous

51,479

Wood or Timber

20,297

Other

682

Service on bridge

Building or plaza

50

Highway

605,538

Pedestrian-bicycle

55,728

Railroad

7,922

Second level (interchange)

10,051

Third level (interchange)

570

Fourth level (interchange)

165

Other

612

Service under bridge

Highway

102,011

Pedestrian-bicycle

934

Railroad

24,479

Waterway

506,390

Waterway (relief)

5,329

Other

3,898

Design

Arch - deck

6,847

Arch - thru

438

Box beam or Girders - multiple

54,635

Box beam or Girders - single or spread

10,913

Channel beam

14,789

Culvert

139,331

Frame

6,264

Girder and Floorbeam system

8,544

Mixed types

26

Movable - bascule

449

Movable - lift

192

Movable - swing

197

Orthotropic

474

Segmental box girder

371

Slab

82,866

Stayed girder

62

Stringer / Multi-beam or Girder

251,852

Suspension

101

Tee beam

36,021

Truss - deck

504

Truss - thru

9,339

Other

3,072

States / Territories

Alabama

Alaska

Arizona

Arkansas

California

Colorado

Connecticut

Delaware

District of Columbia

Florida

Georgia

Hawaii

Idaho

Illinois

Indiana

Iowa

Kansas

Kentucky

Louisiana

Maine

Maryland

Massachusetts

Michigan

Minnesota

Mississippi

Missouri

Montana

Nebraska

Nevada

New Hampshire

New Jersey

New Mexico

New York

North Carolina

North Dakota

Ohio

Oklahoma

Oregon

Pennsylvania

Puerto Rico

Rhode Island

South Carolina

South Dakota

Tennessee

Texas

Utah

Vermont

Virginia

Washington

West Virginia

Wisconsin

Wyoming



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