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

N THOMPSON AVENUE

Unknown

Over: MD 10

0.63 MILE SOUTH OF MD 270, Anne Arundel, MD

Built 1975 ADT: 46,310

MD 648E

Unknown

Over: MD 10

1.43 M S OF MD 270, Anne Arundel, MD

Built 1976 ADT: 46,310

IS 895B RAMP

Unknown

Over: MD 2

0.29 MI S OF MD 695, Anne Arundel, MD

Built 1958 ADT: 46,601

MD 695

Unknown

Over: IS 895B

0.55 MILE NORTH OF MD 2, Anne Arundel, MD

Built 1957 ADT: 4,881

MD 270

Unknown

Over: MD 10

1.06 M S OF MD 710, Anne Arundel, MD

Built 1977 ADT: 47,240

IS 195 EBR

Unknown

Over: MD 295

0.41 M S OF WINTERSON RD, Anne Arundel, MD

Built 1990 ADT: 88,342

IS 195 WBR

Unknown

Over: MD 295

0.41 M S OF WINTERSON RD, Anne Arundel, MD

Built 1990 ADT: 88,342

IS 195 EBR

Unknown

Over: MD 295 SBR RAMP 'B'

0.41 M S OF WINTERSON RD, Anne Arundel, MD

Built 1990 ADT: 10,897

IS 195 WBR

Unknown

Over: MD 295 SBR RAMP 'B'

0.41 M S OF WINTERSON RD, Anne Arundel, MD

Built 1990 ADT: 10,897

IS 695 RAMP 'F'

Unknown

Over: IS 97

0.15 M N OF BR NO 0205800, Anne Arundel, MD

Built 1989 ADT: 18,621

IS 695 OL

Unknown

Over: IS 97 RAMPS 'S' & 'W'

0.01 M N OF BR NO 0213600, Anne Arundel, MD

Built 1989 ADT: 84,179

IS 97 RAMP 'W'

Unknown

Over: IS 97

0.28 MILE SOUTH OF IS 895, Anne Arundel, MD

Built 1989 ADT: 18,621

MD 3D

Unknown

Over: IS 97

1.08 M N OF BR NO 0214100, Anne Arundel, MD

Built 1990 ADT: 101,590

MD 3C

Unknown

Over: IS 97

0.25 M N OF NAJO;ES ROAD, Anne Arundel, MD

Built 1990 ADT: 101,590

IS 97 NBR

Unknown

Over: MD 997D

0.03 MILE SOUTH OF MD 3, Anne Arundel, MD

Built 1989 ADT: 99

IS 97 SBR

Unknown

Over: MD 997D

0.03 MILE SOUTH OF MD 3, Anne Arundel, MD

Built 1989 ADT: 99

MD 3

Unknown

Over: MD 997D

0.03 MILE NORTH OF IS 97, Anne Arundel, MD

Built 1989 ADT: 99

MD 32 EBR

Unknown

Over: MD 3 SBR

0.76 MILE NORTH OF MD 175, Anne Arundel, MD

Built 1989 ADT: 27,185

MD 32 EBR

Unknown

Over: MD 3 NBR

0.76 MILE NORTH OF MD 175, Anne Arundel, MD

Built 1989 ADT: 27,185

MD 3 NB

Unknown

Over: IS 97

0.34 M N OF BR NO 0214700, Anne Arundel, MD

Built 1989 ADT: 93,710

IS 97 NBR

Unknown

Over: MD 32 WBR

0.26 MILE SOUTH OF MD 3, Anne Arundel, MD

Built 1989 ADT: 39,092

IS 97 SBR

Unknown

Over: MD 32 WBR

0.26 MILE SOUTH OF MD 3, Anne Arundel, MD

Built 1989 ADT: 39,092

MILLERSVILLE ROAD

Unknown

Over: IS 97

0.8 M N OF BR NO 0214900, Anne Arundel, MD

Built 1989 ADT: 93,710

WATERBURY ROAD

Unknown

Over: IS 97

0.52 M N OF BR NO 0215000, Anne Arundel, MD

Built 1987 ADT: 93,710

IS 97 RAMP 'A'

Unknown

Over: IS 97

0.52 M N OF BR NO 0214900, Anne Arundel, MD

Built 1987 ADT: 93,710

FARM ROAD

Unknown

Over: IS 97

0.85 M N OF BR NO 0215400, Anne Arundel, MD

Built 1987 ADT: 91,300

HAWKINS ROAD

Unknown

Over: IS 97

0.44 M N OF BR NO 0215500, Anne Arundel, MD

Built 1987 ADT: 91,300

IS 97 NBR

Unknown

Over: MD 450

0.14 M E OF WHITEY CY, Anne Arundel, MD

Built 1987 ADT: 7,520

IS 97 SBR

Unknown

Over: MD 450

0.14 M E OF WHITEY CY, Anne Arundel, MD

Built 1987 ADT: 7,520

IS 595 RAMP 'CC'/3

Unknown

Over: IS 97 EBR

0.16 M N OF IS 595, Anne Arundel, MD

Built 1994 ADT: 87,950

IS 595 RAMP 'CC'/3

Unknown

Over: IS 595

0.2 MILE WEST OF IS 97, Anne Arundel, MD

Built 1994 ADT: 91,300

IS 595

Unknown

Over: IS 97 EBR

4.6 MILE EAST OF MD 424, Anne Arundel, MD

Built 1987 ADT: 91,300

IS 595 RAMP 'F'

Unknown

Over: MD 665 SBR, IS 595

0.79 MILE EAST OF IS 97, Anne Arundel, MD

Built 1991 ADT: 159,360

MD 665 WBR

Unknown

Over: IS 595

0.02 M E OF BR NO 0216100, Anne Arundel, MD

Built 1991 ADT: 127,470

MD 2

Unknown

Over: MD 665

0.39ILE WEST OF MD 665A, Anne Arundel, MD

Built 1991 ADT: 61,602

MARLEY STATION RD

Unknown

Over: MD 10

0.92 MILE NORTH OF MD 177, Anne Arundel, MD

Built 1988 ADT: 43,170

MD 10 NBR

Unknown

Over: MD 177

0.6 MILE EAST OF MD 2, Anne Arundel, MD

Built 1988 ADT: 20,591

MD 10 SBR

Unknown

Over: MD 177

0.6 MILE EAST OF MD 2, Anne Arundel, MD

Built 1988 ADT: 20,591

MD 10 SBR

Unknown

Over: MD 100 WBR

0.59 MILE EAST OF MD 2, Anne Arundel, MD

Built 1988 ADT: 26,792

MD 10 NBR

Unknown

Over: MD 100 EBR

1.56 MILES EAST OF MD 2, Anne Arundel, MD

Built 1991 ADT: 26,792

MD 100M

Unknown

Over: MD 100

0.18 M E OF HOWARD CO LN, Anne Arundel, MD

Built 1996 ADT: 83,402

MD 295 NBR

Unknown

Over: MD 100

.88 M E OF HOWARD CO LINE, Anne Arundel, MD

Built 1992 ADT: 78,282

MD 295 SBR

Unknown

Over: MD 100

.88 M E OF HOWARD CO LINE, Anne Arundel, MD

Built 1992 ADT: 78,282

MD100N (WRIGHT RD)

Unknown

Over: MD 100

0.78 MILE WEST OF MD 713, Anne Arundel, MD

Built 1995 ADT: 78,282

MD 100 EBR

Unknown

Over: MD 713

0.19 MILE SOUTH OF MD 176, Anne Arundel, MD

Built 1995 ADT: 23,820

MD 100 WBR

Unknown

Over: MD 713

0.19 MILE SOUTH OF MD 176, Anne Arundel, MD

Built 1995 ADT: 23,820

MD176B (WRIGHT RD)

Unknown

Over: MD 295

0.71 MILE SOUTH OF MD 100, Anne Arundel, MD

Built 1990 ADT: 88,600

MD 100P-HARMANS RD

Unknown

Over: MD 100

0.91 MILE WEST OF MD 713, Anne Arundel, MD

Built 1995 ADT: 74,302

MD 100 EBR

Unknown

Over: MD 170

0.93 MILE NORTH OF MD 174, Anne Arundel, MD

Built 1995 ADT: 22,801

MD 100 WBR

Unknown

Over: MD 170

0.93 MILE NORTH OF MD 174, Anne Arundel, MD

Built 1995 ADT: 22,801

Showing 101-150 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.