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

HAMMONDS FERRY RD

Unknown

Over: MD 295 NBR

0.71 MI S OF MD 168, Anne Arundel, MD

Built 1949 ADT: 89,422

WEST NURSERY ROAD

Unknown

Over: MD 295 NBR

1.21 MI N OF IS 195, Anne Arundel, MD

Built 1949 ADT: 89,422

WINTERSON ROAD

Unknown

Over: MD 295 NBR

0.41 MILE NORTH OF IS 195, Anne Arundel, MD

Built 1990 ADT: 88,342

MD 295 SBR RAMP B

Unknown

Over: MD 295 NBR

0.21 MILE NORTH OF IS 195, Anne Arundel, MD

Built 1990 ADT: 88,342

RIDGE ROAD

Unknown

Over: MD 295 NBR

2.44 MI N OF MD 100, Anne Arundel, MD

Built 1950 ADT: 88,882

MD 175

Unknown

Over: MD 295

1079 M S OF MD 176B, Anne Arundel, MD

Built 1952 ADT: 88,600

IS 195

Unknown

Over: MD 170

1.16 MI S OF MD 162, Anne Arundel, MD

Built 1950 ADT: 26,621

IS 595

Unknown

Over: PATUXENT RIVER ROAD

0.81 MI E OF PG CO LINE, Anne Arundel, MD

Built 1950 ADT: 933

MD 424

Unknown

Over: IS 595

1.04 MI N OF MD 909, Anne Arundel, MD

Built 1994 ADT: 101,670

MD 424

Unknown

Over: IS 595

2.15 MILES EAST OF PG CO, Anne Arundel, MD

Built 1994 ADT: 101,670

IS 595

Unknown

Over: RUTLAND ROAD

@ RUTHLAND RD, Anne Arundel, MD

Built 1950 ADT: 2,364

IS 595

Unknown

Over: SOUTH HAVEN ROAD

@ SOUTH HAVEN RD, Anne Arundel, MD

Built 1950 ADT: 7,620

IS 595

Unknown

Over: MD 450

0.41 MI W OF MD 2, Anne Arundel, MD

Built 1991 ADT: 39,960

IS 595

Unknown

Over: MD 2 RAMP 'A' (9)

0.1 MILE NORTH OF MD 450, Anne Arundel, MD

Built 1991 ADT: 28,011

IS 595

Unknown

Over: MD 70

0.82 MI N OF MD 435, Anne Arundel, MD

Built 1991 ADT: 24,230

MD 436

Unknown

Over: IS 595, RAMPS 'B' & 'C'

0.11 MILE EAST OF MD 70, Anne Arundel, MD

Built 1991 ADT: 114,760

MD 648E

Unknown

Over: IS 695

0.63 MILE NORTH OF IS 97, Anne Arundel, MD

Built 1989 ADT: 133,652

IS 97

Unknown

Over: FURNACE BRANCH ROAD

0.59 MILE EAST OF MD 648, Anne Arundel, MD

Built 1955 ADT: 16,600

WELLHAM ROAD

Unknown

Over: IS 97

1.21 M S OD IS 695, Anne Arundel, MD

Built 1955 ADT: 103,350

IS 97

Unknown

Over: MD 648E, MTA LIGHT RAIL

0.48 MI N OF MD 176, Anne Arundel, MD

Built 1955 ADT: 16,880

IS 97

Unknown

Over: MD 176 (DORSEY ROAD)

0.69 MI W OF MD 648E, Anne Arundel, MD

Built 1955 ADT: 22,262

STEWART AVENUE

Unknown

Over: IS 97

0.4 MI S OF MD 176, Anne Arundel, MD

Built 1991 ADT: 119,260

MD 174

Unknown

Over: IS 97

0.24 MI W OF MD 779, Anne Arundel, MD

Built 1955 ADT: 122,490

IS 97 NBR

Unknown

Over: MD 3 BUS

.19 MILE NORTH OF MD 997E, Anne Arundel, MD

Built 1990 ADT: 29,470

IS 97 SBR

Unknown

Over: MD 3 BUS

.19 MILE NORTH OF MD 997E, Anne Arundel, MD

Built 1990 ADT: 29,470

MD 258

Unknown

Over: MD 4

0.34 MI S OF MD 794, Anne Arundel, MD

Built 1961 ADT: 49,641

MD 100 RAMP

Unknown

Over: MD 100 EBR

0.18 MI E OF MD 2, Anne Arundel, MD

Built 1963 ADT: 26,792

MD 100 EBR

Unknown

Over: MD 2

1.71 MILES NORTH OF MD 10, Anne Arundel, MD

Built 1963 ADT: 25,125

MD 100 WBR

Unknown

Over: MD 2

1.71 MILES NORTH OF MD 10, Anne Arundel, MD

Built 1963 ADT: 25,125

MD 100 EBR

Unknown

Over: MD 174

0.69 MILE EAST OF IS 97, Anne Arundel, MD

Built 1963 ADT: 8,580

MD 100 WBR

Unknown

Over: MD 174

0.69 MILE EAST OF IS 97, Anne Arundel, MD

Built 1963 ADT: 8,580

MD 100 EBR

Unknown

Over: MD 3 BUS

0.68 MILE SOUTH OF MD 174, Anne Arundel, MD

Built 1963 ADT: 22,340

MD 100 WBR

Unknown

Over: MD 3 BUS

0.68 MILE SOUTH OF MD 174, Anne Arundel, MD

Built 1963 ADT: 22,340

MD 100 EBR

Unknown

Over: OAKWOOD ROAD

AT MD 100, Anne Arundel, MD

Built 1963 ADT: 12,210

MD 100 WBR

Unknown

Over: OAKWOOD ROAD

AT MD 100, Anne Arundel, MD

Built 1963 ADT: 12,210

IS 695 IL

Unknown

Over: MD 170, MTA LIGHT RAIL

0.41 MILE NORTH OF MD 169, Anne Arundel, MD

Built 1967 ADT: 11,711

IS 695 OL

Unknown

Over: MD 170, MTA LIGHT RAIL

0.41 MILE NORTH OF MD 169, Anne Arundel, MD

Built 1967 ADT: 11,711

MD 2

Unknown

Over: MD 695

0.11 MI N OF MD 711, Anne Arundel, MD

Built 1968 ADT: 92,102

MD 32 WBR

Unknown

Over: MD 3 SBR

0.56 MI S OF MD 932A, Anne Arundel, MD

Built 1970 ADT: 52,720

MD 32 WBR

Unknown

Over: MD 3 NBR

0.56 MI S OF MD 932A, Anne Arundel, MD

Built 1970 ADT: 52,720

EDWIN RAYNER ROAD

Unknown

Over: MD 100

@ MD 100, Anne Arundel, MD

Built 1969 ADT: 26,792

IS 695

Unknown

Over: MD 295 SBR

0.37 MI S OF MD 168, Anne Arundel, MD

Built 1951 ADT: 80,822

MD 2 RAMP 'K'

Unknown

Over: US 50

1.66 M E OF IS 595, Anne Arundel, MD

Built 1953 ADT: 95,083

US 50

Unknown

Over: MD 2/MD 450

0.40 MI S OF MD 648F, Anne Arundel, MD

Built 1953 ADT: 23,106

MD 648H

Unknown

Over: MD 100 EBR

0.75 M E OF MD 10, Anne Arundel, MD

Built 1971 ADT: 26,792

MD 648H

Unknown

Over: MD 100 WBR

0.75 M E OF MD 10, Anne Arundel, MD

Built 1971 ADT: 26,792

CATHERINE AVENUE

Unknown

Over: MD 100

1.46 M E OD MD 10, Anne Arundel, MD

Built 1971 ADT: 26,792

DOVER ROAD

Unknown

Over: MD 10

0.63 MILE NORTH OF MD 270, Anne Arundel, MD

Built 1974 ADT: 47,240

MD 908D

Unknown

Over: US 50

0.29 M W TOLL PLAZA, Anne Arundel, MD

Built 1974 ADT: 71,767

MD 710

Unknown

Over: MD 10

0.56 MI N OF MD 2, Anne Arundel, MD

Built 1973 ADT: 48,600

Showing 51-100 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.