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%.

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.

All Bridges in Maryland

IS 83 NBR

Fair

Over: GUNPOWDER FALLS

1.92 M N OF MD 137, Baltimore, MD

Built 1958 Load: 44.9 t ADT: 59,820

MD 695 IL

Fair

Over: NORFOLK SOUTHERN RR

0.18 MILE SOUTH OF MD 151, Baltimore, MD

Built 1966 Load: 44.9 t ADT: 41,012

MIDDLE RIVER ROAD

Fair

Over: CSX RAILROAD

0.09 MI N OF US 40, Baltimore, MD

Built 1991 Load: 44.9 t ADT: 17,445

TRACEY'S STORE ROA

Fair

Over: PRETTYBOY BRANCH

1.7 MI NE OF FORESTON RD, Baltimore city, MD

Built 1932 Load: 44.9 t ADT: 110

IS 95 SB

Fair

Over: B & O RR

0.25 MI S OF PULASKI HWY, Baltimore city, MD

Built 1972 Load: 44.9 t ADT: 68,217

MD 496

Fair

Over: BEAR BRANCH

0.76 MILE EAST OF MD 97, Carroll, MD

Built 1931 Load: 44.9 t ADT: 4,042

US 1

Fair

Over: BRANCH OF STONE RUN

1.45 MILE NORTH OF MD 276, Cecil, MD

Built 1956 Load: 44.9 t ADT: 7,802

BELVIDERE ROAD

Fair

Over: PRINCIPIO CREEK

0.03 MI S OF LINTON R RD, Cecil, MD

Built 1996 Load: 44.9 t ADT: 675

OLD ELK NECK ROAD

Fair

Over: AMTRAK

0.32 MI S OF US 40, Cecil, MD

Built 1980 Load: 44.9 t ADT: 5,968

MD 28

Fair

Over: BR OF POTOMAC RIVER

0.58 MI E OF ROCK HALL RD, Frederick, MD

Built 1937 Load: 44.9 t ADT: 6,272

US 40 WBR

Fair

Over: ROCK CREEK

0.01 M E OF ROCK CREEK DR, Frederick, MD

Built 1936 Load: 44.9 t ADT: 20,782

MILL ISLAND PKWY

Fair

Over: TUSCARORA CREEK

0.9 MI. NORTH OF MD 26, Frederick, MD

Built 1996 Load: 44.9 t ADT: 4,274

MD 42

Fair

Over: GLADE RUN

1.45 MILES S OF PA LINE, Garrett, MD

Built 1933 Load: 44.9 t ADT: 691

IS 68 WB

Fair

Over: SAND SPRING RD

0.66 MILE EAST OF W VA, Garrett, MD

Built 1975 Load: 44.9 t ADT: 15,710

MD 165

Fair

Over: WEST BRANCH

1.03 MILES N OF MD 152, Harford, MD

Built 2004 Load: 44.9 t ADT: 7,471

MD 32 EB

Fair

Over: CSX TRANSPORTATION

ON ANNE ARUNDEL CO LINE, Howard, MD

Built 1983 Load: 44.9 t ADT: 65,902

SHEPPARD LANE

Fair

Over: MIDDLE PATUXENT RIVER

1.3 MI N OF MD RTE 108, Howard, MD

Built 1983 Load: 44.9 t ADT: 3,124

RANDOLPH ROAD (EB)

Fair

Over: ROCK CREEK

1.5 MILES EAST OF MD 355, Montgomery, MD

Built 1953 Load: 44.9 t ADT: 23,434

SEVEN LOCKS ROAD

Fair

Over: CABIN JOHN CREEK

0.1 MI S OF JCT SR MD 190, Montgomery, MD

Built 1980 Load: 44.9 t ADT: 9,414

MD 212

Fair

Over: PAINT BRANCH

1.37 MILES N OF IS 495, Prince George's, MD

Built 1934 Load: 44.9 t ADT: 23,281

IS 595 WB

Fair

Over: FOLLY BRANCH

1.11 MILES WEST OF MD 193, Prince George's, MD

Built 1955 Load: 44.9 t ADT: 113,590

GREENWOOD LANE

Fair

Over: BALD HILL BRANCH

0.22 MI NE OF MD 450, Prince George's, MD

Built 1967 Load: 44.9 t ADT: 5,960

MD 632

Fair

Over: NORFOLK & WESTERN RR

0.75 MILE NORTH OF IS 70, Washington, MD

Built 1976 Load: 44.9 t ADT: 12,081

PEARRE ROAD

Fair

Over: SIDELING HILL CREEK

ON ALLEGANY CO LINE, Washington, MD

Built 1890 Load: 44.9 t ADT: 66

ASHTON ROAD

Fair

Over: LITTLE CONOCOCHEAGUE CRE

0.19 MI N OF IS 70, Washington, MD

Built 1960 Load: 44.9 t ADT: 704

HOGMAW ROAD

Fair

Over: LITTLE ANTIETAM CREEK

0.45 MI W OF MD RTE 67, Washington, MD

Built 1988 Load: 44.9 t ADT: 153

MD 256

Fair

Over: ROCKHOLD CREEK

0.94 MI W OF MD 258, Anne Arundel, MD

Built 1980 Load: 45.4 t ADT: 3,344

IS 195 EBR

Fair

Over: AMTRAK, PATAPSCO RIVER

0.96 MI N OF MD 295, Anne Arundel, MD

Built 1990 Load: 45.4 t ADT: 39,015

IS 695 IL

Fair

Over: EDMONDSON AVENUE

0.48 MILE NORTH OF MD 144, Baltimore, MD

Built 1957 Load: 45.4 t ADT: 180,306

SHELBOURNE ROAD

Fair

Over: WEST BRANCH HERBERT RUN

0.5 MI N SULPHUR SPRING R, Baltimore, MD

Built 1920 Load: 45.4 t ADT: 3,710

IS 95 NB

Fair

Over: B&O RR

Milepost M52.0, Baltimore city, MD

Built 1982 Load: 45.4 t ADT: 91,311

ROOP ROAD

Fair

Over: PINEY CREEK

.7 M SE OF BULLFROG RD, Carroll, MD

Built 1912 Load: 45.4 t ADT: 317

HUGHES ROAD

Fair

Over: BEAVER RUN

0.23 MI WEST OF MD 91, Carroll, MD

Built 1976 Load: 45.4 t ADT: 330

MD 213

Fair

Over: LONG BRANCH

0.17 MILE NORTH OF MD 285, Cecil, MD

Built 1949 Load: 45.4 t ADT: 14,551

OLD ELK NECK ROAD

Fair

Over: PLUM CREEK

4 MI NW CHESAPEAKE CITY, Cecil, MD

Built 1992 Load: 45.4 t ADT: 777

RAGAN ROAD

Fair

Over: BRANCH OF OCTORARO CREEK

0.04 MI E OF JOHNSON RD, Cecil, MD

Built 1945 Load: 45.4 t ADT: 802

MD 6

Fair

Over: NANJEMOY CREEK

1.4 MILES WEST OF MD 425, Charles, MD

Built 1922 Load: 45.4 t ADT: 1,972

MD 234

Fair

Over: ALLENS FRESH RUN

1.0 MILE EAST OF US 301, Charles, MD

Built 1933 Load: 45.4 t ADT: 6,741

MD 180

Fair

Over: LITTLE CATOCTIN CREEK

1.31 MILES WEST OF MD 79, Frederick, MD

Built 1912 Load: 45.4 t ADT: 1,300

MD 180 WESTBOUND

Fair

Over: US 15

0.49 MILE EAST OF IS 70, Frederick, MD

Built 1968 Load: 45.4 t ADT: 27,750

US 219

Fair

Over: CSX TRANS., LITTLE YOUGH

.26 MILE SOUTH OF US 219A, Garrett, MD

Built 1959 Load: 45.4 t ADT: 6,372

MACPHAIL ROAD

Fair

Over: BYNUM RUN

1.6 MILES E OF MD 924, Harford, MD

Built 1974 Load: 45.4 t ADT: 3,095

BRIDGE DRIVE

Fair

Over: JOPPATOWNE CANAL

0.05 MI S OF TOWNE CNT DR, Harford, MD

Built 1975 Load: 45.4 t ADT: 1,342

MD 216

Fair

Over: PATUXENT RIVER

ON PRINCE GEORGES CO LINE, Howard, MD

Built 1960 Load: 45.4 t ADT: 24,762

IS 95 SB

Fair

Over: STANSFIELD RD

0.50 MI N OF PG CO, Howard, MD

Built 1970 Load: 45.4 t ADT: 186,040

IS 495

Fair

Over: SEVEN LOCKS RD

0.59 MILE EAST OF MD 190, Montgomery, MD

Built 1962 Load: 45.4 t ADT: 214,005

SHADY GROVE ROAD

Fair

Over: MILL CREEK

1.1 MI SOUTH OF MD 115, Montgomery, MD

Built 1975 Load: 45.4 t ADT: 67,323

DECOVERLY DRIVE

Fair

Over: TRIBUTARY TO MUDDY BRANC

0.7 MILES NORTH OF MD 28, Montgomery, MD

Built 2006 Load: 45.4 t ADT: 5,804

MONROE STREET

Fair

Over: TRUCK STREET

0.16 MI NORTH OF MD 28, Montgomery, MD

Built 1996 Load: 45.4 t ADT: 3,663

MD 212A

Fair

Over: CSX TRANS.

0.08 MILE NORTH OF US 1, Prince George's, MD

Built 1937 Load: 45.4 t ADT: 19,631

Showing 2,651-2,700 of 5,527 bridges

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.