State profile · Below national median SD

Maryland bridge safety

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

5,527
Public bridges
25.9%
Good condition
4.3%
Poor condition
4.3%
Structurally deficient

Total Bridges

5,527

Public highway bridges in Maryland

Good Condition

25.9%

1,432 bridges rated 7-9

-24.1pp vs 50% benchmark

Poor Condition

4.3%

236 bridges rated 0-4

Structurally Deficient

4.3%

236 bridges flagged for repair priority

-2.7pp vs national avg 7.0%

Maryland vs national bridge condition

Maryland — Good condition share 25.9%
National avg

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

Maryland — Structurally deficient share 14.2%
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 — Maryland (FHWA NBI)

Maryland25.909173149990956%49.140582594535914%GoodFairPoorStructurally Deficient
Bridge inventory deck-condition mix — Maryland (FHWA NBI)

Counties (24)

Allegany 245 Anne Arundel 395 Baltimore 787 Baltimore city 380 Calvert 33 Caroline 70 Carroll 205 Cecil 194 Charles 94 Dorchester 47 Frederick 491 Garrett 139 Harford 275 Howard 310 Kent 44 Montgomery 522 Prince George's 582 Queen Anne's 88 Somerset 46 St. Mary's 50 Talbot 42 Washington 301 Wicomico 100 Worcester 82

Maryland 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 Maryland on the same metric.

09

Connecticut

3.95% top marginal rate
Structure
Progressive
Burden @ $100K
$4,277

47

Tennessee

3.97% top marginal rate
Structure
Progressive
Burden @ $100K
$20,426
Selected

24

Maryland

4.27% top marginal rate
Structure
Progressive
Burden @ $100K
$5,527

08

Colorado

4.32% top marginal rate
Structure
Progressive
Burden @ $100K
$8,965

41

Oregon

4.46% top marginal rate
Structure
Progressive
Burden @ $100K
$8,310

Bridges Needing Most Attention in Maryland

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

OLD SELBYSPORT RD

Poor

Over: BEAR CREEK

0.01 MI N OF WALNUT ST, Garrett, MD

Built 1920 Load: 2.7 t ADT: 30

ZION ROAD

Poor

Over: HAWLINGS RIVER

2.8 MILES NORTH OF MD 108, Montgomery, MD

Built 1930 Load: 4.5 t ADT: 2,440

ROXBURY ROAD

Poor

Over: BEAVER CREEK

0.1 MI W OF ALT US RTE 40, Washington, MD

Built 1920 Load: 7.3 t ADT: 533

TUFTON AVENUE

Poor

Over: WATERSPOUT RUN

2.63 MI. WEST MD 25, Baltimore, MD

Built 1920 Load: 7.7 t ADT: 7,735

MOHRS LANE

Structurally Deficient

Over: CSX RAILROAD

0.1 MI NW OF US RTE 40, Baltimore, MD

Built 1912 Load: 9.1 t ADT: 1,600

OLD MONTGOMERY RD

Structurally Deficient

Over: LITTLE PATUXENT RIVER

0.5 MI W OF US RTE 29, Howard, MD

Built 1935 Load: 10.0 t ADT: 10

All Bridges in Maryland

MD 5 NBR

Unknown

Over: MD 337

0.78 M S OF AUTH ROAD, Prince George's, MD

Built 1996 ADT: 31,321

MD 5 SBR

Unknown

Over: MD 337

0.78 M S OF AUTH ROAD, Prince George's, MD

Built 1996 ADT: 31,321

MD 5R-MANCHESTER D

Unknown

Over: MD 5

0.34 MILE SOUTH OF IS 95, Prince George's, MD

Built 1996 ADT: 106,842

IS 95/495 OL LOCAL

Unknown

Over: IS 95/IS 495 RAMP 'T'

1.3 M E OF VA STATE LINE, Prince George's, MD

Built 2004

IS 295 RAMP 'F'

Unknown

Over: IS 95/IS 495 IL LOCAL

1.042 MILE WEST OF MD 210, Prince George's, MD

Built 2003 ADT: 42,484

IS 95/IS 495 RMP R

Unknown

Over: RAMP 'Q'

I-295 S Ramp to I-95/495, Prince George's, MD

Built 2003

IS 95/495 O.L. LOC

Unknown

Over: RAMP Q(1)

2.0 MILE WEST OF MD 210, Prince George's, MD

Built 2005

IS 95/495 OLL RP A

Unknown

Over: RAMP 'B'

2.0 MILE WEST OF MD 210, Prince George's, MD

Built 2004

IS 95/IS 495 RMP J

Unknown

Over: IS 95/IS 495 OL LOCAL

2.0 MILE WEST OF MD 210, Prince George's, MD

Built 2005 ADT: 141,892

IS 95/IS 495 RMP P

Unknown

Over: IS 95/IS 495 RAMP 'B'

2.0 MILE WEST OF MD 210, Prince George's, MD

Built 2005

IS 95/IS 495 RMP G

Unknown

Over: IS 95/IS 495 RAMP 'B'

2.0 MILE WEST OF MD 210, Prince George's, MD

Built 2005

IS 95/IS 495 RMP G

Unknown

Over: IS 95/IS 495 RAMP 'P'

2.0 MILE WEST OF MD 210, Prince George's, MD

Built 2004

IS 95/IS 495 RMP T

Unknown

Over: IS 95/IS 495 RAMP 'X'

2.0 MILE WEST OF MD 210, Prince George's, MD

Built 2004

IS 95/IS 495 RMP Q

Unknown

Over: BELTWAY ACCESS PARCEL RD

2.0 MILE WEST OF MD 210, Prince George's, MD

Built 2004

IS 95/IS 495 RMP H

Unknown

Over: BELTWAY PARCEL

2.0 MILE WEST OF MD 210, Prince George's, MD

Built 2004

IS 95/495 IL LOCAL

Unknown

Over: IS 95/IS 495 RAMP 'T'

2.0 MILE WEST OF MD 210, Prince George's, MD

Built 2006

IS 95/495 IL LOCAL

Unknown

Over: IS 95/IS 495 RAMP 'Q'

2.0 MILE WEST OF MD 210, Prince George's, MD

Built 2006

IS 95/495 OL EXP

Unknown

Over: IS 95/IS 495 RAMP 'Q'

2.0 MILE WEST OF MD 210, Prince George's, MD

Built 2008

IS 95/IS 495 RMP Q

Unknown

Over: IS 95/IS 495 RAMP 'T'

2.0 MILE WEST OF MD 210, Prince George's, MD

Built 2006

MD 210 RAMP F

Unknown

Over: IS 95/IS 495 RAMP G

0.06 MILE NORTH OF MD 414, Prince George's, MD

Built 2005 ADT: 12,000

IS 95/IS 495 RMP 7

Unknown

Over: IS 95/IS 495 RAMP 9

3.03 MILE NORTH OF MD 414, Prince George's, MD

Built 2008 ADT: 1,511

IS 95/IS 495 RMP 7

Unknown

Over: MD 5

1.27 MILE NORTH OF MD 337, Prince George's, MD

Built 2008 ADT: 66,772

IS 95/IS 495 RMP 7

Unknown

Over: IS 95/ IS 495 & RAMP 5

2.86 MILE NORTH OF MD 414, Prince George's, MD

Built 2008 ADT: 154,159

IS 95/IS 495 RMP 6

Unknown

Over: IS 95/IS 495 RAMP 5

2.97 MILE NORTH OF MD 414, Prince George's, MD

Built 2008 ADT: 7,211

IS 95/IS 495 RMP 6

Unknown

Over: IS 95/IS 495 RAMP 5

2.82 MILE NORTH OF MD 414, Prince George's, MD

Built 2006 ADT: 7,211

NAT'L HARBOR N. RD

Unknown

Over: IS 295 RAMP 'O'

0.5 MILE WEST OF MD 210, Prince George's, MD

Built 2008

PEDESTRIAN

Unknown

Over: IS 95/IS 495

ON ROSALIE ISLAND, Prince George's, MD

Built 2008

MD 210

Unknown

Over: MD 414 (OXON HILL ROAD)

0.211 M W OF FELKER ROAD, Prince George's, MD

Built 2007 ADT: 38,650

MD 210 RAMP B

Unknown

Over: IS 95/IS 495 ILE & OLL

1.05 MILE NORTH OF IS 295, Prince George's, MD

Built 2008 ADT: 141,180

WOODS WAY

Unknown

Over: MD 5

.30 MI NW I95/495/MD5, Prince George's, MD

Built 2016 ADT: 73,425

PEDESTRIAN BRIDGE

Unknown

Over: MD 5

0.25 MI N OF I-95, Prince George's, MD

Built 2016 ADT: 73,425

MUIRKIRK ROAD

Unknown

Over: US 1 & CSXT

MUIRKIRK ROAD AT US 1, Prince George's, MD

Built 1970 ADT: 31,110

CHERRYWOOD LANE

Unknown

Over: I-95/I-495

0.58 MI N OF MD 201, Prince George's, MD

Built 1990 ADT: 210,221

VIRGINIA MANOR ROA

Unknown

Over: MD 200

1.1 MI. E. OF I-95, Prince George's, MD

Built 2013 ADT: 60,000

US 50 WBR

Unknown

Over: US 301

0.3 MILE SOUTH OF MD 18C, Queen Anne's, MD

Built 1950 ADT: 26,710

US 301 NBR

Unknown

Over: MD 290

1.21 MILE NORTH OF MD 300, Queen Anne's, MD

Built 1955 ADT: 2,751

US 301 SBR

Unknown

Over: MD 290

1.21 MILE NORTH OF MD 300, Queen Anne's, MD

Built 1967 ADT: 2,751

MD 18B

Unknown

Over: US 50/US 301

0.19 MILE WEST OF MD 552, Queen Anne's, MD

Built 1989 ADT: 67,981

MD 18V

Unknown

Over: US 50/US 301

0.55 MILE EAST OF MD 18F, Queen Anne's, MD

Built 1990 ADT: 67,691

MD 835K

Unknown

Over: US 50/US 301

0.42 MILE EAST OF MD 18X, Queen Anne's, MD

Built 1991 ADT: 66,731

MD 213

Unknown

Over: US 301

0.71 M N OF PERLEE ROAD, Queen Anne's, MD

Built 1994 ADT: 17,367

MD 8

Unknown

Over: US 50/US 301

2.95 M E/QUEEN ANNE'S CO, Queen Anne's, MD

Built 1984 ADT: 73,971

US 522

Unknown

Over: POTOMAC RIV, CSX TRANS

ON WEST VIRGINIA LNE, Washington, MD

Built 1937 ADT: 150

MD 58

Unknown

Over: IS 81

0.03 MI W OF HAGERSTOWN, Washington, MD

Built 1958 ADT: 62,400

US 40 EBR

Unknown

Over: IS 81

0.85 MILE SOUTH OF MD 58, Washington, MD

Built 1958 ADT: 61,620

US 40 WBR

Unknown

Over: IS 81

0.85 MILE SOUTH OF MD 58, Washington, MD

Built 1958 ADT: 61,620

IS 81 NBR

Unknown

Over: MAUGANS AVE

1.89 MILES N OF MD 58, Washington, MD

Built 1958 ADT: 999

IS 81 SBR

Unknown

Over: MAUGANS AVE

1.89 MILES N OF MD 58, Washington, MD

Built 1958 ADT: 999

IS 81 NBR

Unknown

Over: SHOWALTER ROAD

1.67 MILES S OF PA LINE, Washington, MD

Built 1958 ADT: 948

IS 81 SBR

Unknown

Over: SHOWALTER ROAD

1.67 MILES S OF PA LINE, Washington, MD

Built 1958 ADT: 948

Showing 1,001-1,050 of 5,527 bridges

Related

All states → | National rankings → | Understanding conditions → | SD bridges explained →
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.

Understanding Bridge Conditions

How FHWA rates bridge condition on a 0-9 scale.

Check Your Daily Bridges

How to look up bridge condition data for bridges on your route.

Read our methodology — how this data is sourced, computed, and verified.