State profile · Below national median SD

District of Columbia bridge safety

Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in District of Columbia — drawn straight from the FHWA National Bridge Inventory.

159
Public bridges
15.1%
Good condition
1.3%
Poor condition
1.3%
Structurally deficient

Total Bridges

159

Public highway bridges in District of Columbia

Good Condition

15.1%

24 bridges rated 7-9

-34.9pp vs 50% benchmark

Poor Condition

1.3%

2 bridges rated 0-4

Structurally Deficient

1.3%

2 bridges flagged for repair priority

-5.7pp vs national avg 7.0%

District of Columbia vs national bridge condition

District of Columbia — Good condition share 15.1%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

District of Columbia — Structurally deficient share 4.2%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.

Condition Distribution

Bridge inventory deck-condition mix — District of Columbia (FHWA NBI)

District of Columbia15.09433962264151%32.70440251572327%GoodFairPoorStructurally Deficient
Bridge inventory deck-condition mix — District of Columbia (FHWA NBI)

District of Columbia vs nearby ranks

Adjacent states on the structurally deficient leaderboard (lower share = better)

States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below District of Columbia on the same metric.

48

Texas

1.13% top marginal rate
Structure
Progressive
Burden @ $100K
$56,740

10

Delaware

1.25% top marginal rate
Structure
Progressive
Burden @ $100K
$878
Selected

11

District of Columbia

1.26% top marginal rate
Structure
Progressive
Burden @ $100K
$159

04

Arizona

1.44% top marginal rate
Structure
Progressive
Burden @ $100K
$5,640

13

Georgia

1.49% top marginal rate
Structure
Progressive
Burden @ $100K
$15,216

Bridges Needing Most Attention in District of Columbia

Six lowest-condition bridges in District of Columbia, ranked by composite NBI rating. Each is inspected at least every 24 months.

Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges Editorial.

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.