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

MD 67

Fair

Over: DOG CREEK

1.87 MILES N OF MD 67A, Washington, MD

Built 1959 Load: 32.7 t ADT: 5,422

MD 67

Fair

Over: LITTLE ANTIETAM CREEK

0.41 MILE S OF MD 858F, Washington, MD

Built 1959 Load: 32.7 t ADT: 5,422

MD 491

Fair

Over: LITTLE ANTIETAM CREEK

1.21 MILES NORTH OF MD 64, Washington, MD

Built 1961 Load: 32.7 t ADT: 2,130

MD 632

Fair

Over: ST JAMES RUN

0.02 MILE SOUTH OF IS 70, Washington, MD

Built 1966 Load: 32.7 t ADT: 5,601

MD 66

Fair

Over: BLACKROCK CREEK

0.27 MILE SOUTH OF IS 70, Washington, MD

Built 1968 Load: 32.7 t ADT: 5,291

BOYD ROAD

Fair

Over: CAMP SPRING RUN

0.88 M S 0F US RTE 40, Washington, MD

Built 1950 Load: 32.7 t ADT: 1,116

HOPEWELL ROAD

Fair

Over: SEMPLE RUN

0.19 MI S OF IS 70, Washington, MD

Built 1966 Load: 32.7 t ADT: 933

ROXBURY ROAD

Fair

Over: ANTIETAM CREEK

1.27 MI W OF ALT US RT 40, Washington, MD

Built 1824 Load: 32.7 t ADT: 778

AMOS REEDER ROAD

Fair

Over: DOG CREEK

0.66 MI SE OF MD RTE 67, Washington, MD

Built 1958 Load: 32.7 t ADT: 238

SOUTH HAWBAKER CIR

Fair

Over: TOM'S RUN

0.09 MI. W.OF S MILL ST., Washington, MD

Built 1977 Load: 32.7 t ADT: 56

MD 313

Fair

Over: PLUM CREEK

1.05 MILES S OF MD 348, Wicomico, MD

Built 1955 Load: 32.7 t ADT: 1,420

US 50 EB

Fair

Over: BURNT MILL BRANCH

0.50 MI W OF WORCESTER CO, Wicomico, MD

Built 1964 Load: 32.7 t ADT: 24,122

US 50 WB

Fair

Over: BURNT MILL BRANCH

0.50 MI W OF WORCESTER CO, Wicomico, MD

Built 1964 Load: 32.7 t ADT: 24,122

MD 347

Fair

Over: REWASTICO CREEK

0.27 MILE SOUTH OF US 50, Wicomico, MD

Built 1966 Load: 32.7 t ADT: 1,391

US 113 SB

Fair

Over: BACHELORS BRANCH

3.1 MILES NORTH OF MD 756, Worcester, MD

Built 1939 Load: 32.7 t ADT: 5,662

MD 376

Fair

Over: TRAPPE CREEK

1.32 MILES EAST OF US 113, Worcester, MD

Built 1964 Load: 32.7 t ADT: 4,122

OLD FURNACE ROAD

Fair

Over: NASSAWANGO CREEK

0.95 MI SW OF MD 12, Worcester, MD

Built 1995 Load: 32.7 t ADT: 435

OCEAN PARKWAY NB

Fair

Over: POND

200' NORTH OF MD 589, Worcester, MD

Built 1970 Load: 32.7 t ADT: 5,660

OCEAN PARKWAY SB

Fair

Over: POND

200' NORTH OF MD 589, Worcester, MD

Built 1970 Load: 32.7 t ADT: 5,660

VICTORY POST DRIVE

Fair

Over: GEORGES CREEK

0.04 MI N OF MD 937, Allegany, MD

Built 1950 Load: 33.1 t ADT: 1,599

IS 95 RAMP D

Fair

Over: UTILITY ACCESS RD

Milepost M57.1, Baltimore city, MD

Built 1980 Load: 33.1 t ADT: 6,591

I-395 NB

Fair

Over: OSTEND ST/LOTS G&H

Milepost 1.1, Baltimore city, MD

Built 1981 Load: 33.1 t ADT: 26,190

MILL RUN ROAD

Fair

Over: MILL RUN

1.6 M NE FRNDSVLLEADDISON, Garrett, MD

Built 1950 Load: 33.1 t ADT: 29

RECKORD ROAD

Fair

Over: WILDCAT BRANCH

0.1 MILES S OF US 1, Harford, MD

Built 1957 Load: 33.1 t ADT: 961

HESS ROAD

Fair

Over: YELLOW BRANCH

0.5 MILES E OF MD 146, Harford, MD

Built 1950 Load: 33.1 t ADT: 8,065

US 29 NB

Fair

Over: LITTLE PATUXENT RIVER

1.62 MILES S OF MD 175, Howard, MD

Built 1971 Load: 33.1 t ADT: 73,292

MD 650

Fair

Over: HAWLINGS RIVER

1.88 MILES N OF MD 108, Montgomery, MD

Built 1929 Load: 33.1 t ADT: 7,660

IS 495X

Fair

Over: CABIN JOHN CREEK

0.22 MILE NORTH OF GV 6, Montgomery, MD

Built 1964 Load: 33.1 t ADT: 19,820

IS 95 IL

Fair

Over: CSX TRANS & WMATA

1.12 MILES N OF MD 201, Prince George's, MD

Built 1963 Load: 33.1 t ADT: 96,390

IS 95 OL

Fair

Over: CSX TRANS & WMATA

1.12 MILES N OF MD 201, Prince George's, MD

Built 1963 Load: 33.1 t ADT: 96,390

MD 544

Fair

Over: PEARL CREEK

1.06 MILE SOUTH OF MD 290, Queen Anne's, MD

Built 1971 Load: 33.1 t ADT: 2,751

US 50/301

Fair

Over: KENT ISLAND NARROW

0.59 MILE WEST OF MD 835, Queen Anne's, MD

Built 1990 Load: 33.1 t ADT: 65,701

MD 242

Fair

Over: BR OF ST CLEMENTS CREEK

0.58 MILE SOUTH OF MD 5, St. Mary's, MD

Built 1951 Load: 33.1 t ADT: 2,431

SOUTH DIVISION STR

Fair

Over: EAST BRANCH OF WICOMICO

0.2 MI S OF US 50 BUS, Wicomico, MD

Built 1981 Load: 33.1 t ADT: 2,764

US 113 BU

Fair

Over: PURNELL BRANCH

0.39 MILE S OF US 113, Worcester, MD

Built 1952 Load: 33.1 t ADT: 7,120

US 113 SB

Fair

Over: PILCHARD CREEK

0.68 MILE NORTH OF MD 756, Worcester, MD

Built 1969 Load: 33.1 t ADT: 2,751

MD 51

Fair

Over: C&O CANAL

0.64 MI W OF W VA LINE, Allegany, MD

Built 1932 Load: 33.4 t ADT: 1,642

MD 176

Fair

Over: PINEY RUN

0.47 MI E OF MD 295, Anne Arundel, MD

Built 1949 Load: 33.6 t ADT: 2,452

MD 147

Fair

Over: GUNPOWDER FALLS

0.03 MI S OF NOTCH CLIFF, Baltimore, MD

Built 1929 Load: 33.6 t ADT: 7,982

MALVERN AVENUE

Fair

Over: TOWSON RUN

0.1 MI W CHARLES ST, Baltimore, MD

Built 1910 Load: 33.6 t ADT: 2,373

KEITH AVENUE VIADU

Fair

Over: CONSOL ENERGY RAIL YARD

KEITH AVE OVER CONSOL, Baltimore city, MD

Built 1981 Load: 33.6 t ADT: 46,104

IS 95 SB

Fair

Over: B&O RR

Milepost M52.0, Baltimore city, MD

Built 1978 Load: 33.6 t ADT: 94,226

IS 95 RAMP J

Fair

Over: HANOVER ST, RACE ST, CSX

Milepost M55.2, Baltimore city, MD

Built 1979 Load: 33.6 t ADT: 10,013

IS 95 RAMP A

Fair

Over: QUAD AVE, HERRING RUN

SB ON RAMP FROM MORAVIA, Baltimore city, MD

Built 1974 Load: 33.6 t ADT: 6,464

FRIZZELLBURG ROAD

Fair

Over: MEADOW BRANCH

1.07 MILES S OF MD 832, Carroll, MD

Built 1966 Load: 33.6 t ADT: 679

BREWSTER BRIDGE RO

Fair

Over: BIG ELK CREEK

0.71 MI E OF ELK MILLS RD, Cecil, MD

Built 1972 Load: 33.6 t ADT: 1,763

MD 75

Fair

Over: BUSH CREEK

.65 MILE SOUTH OF MD 75FB, Frederick, MD

Built 1972 Load: 33.6 t ADT: 6,492

LIMESTONE LANE

Fair

Over: BR OF HOLLOW CREEK

AT BEECHTREE LANE INTERSC, Frederick, MD

Built 1960 Load: 33.6 t ADT: 50

CRANESVILLE ROAD

Fair

Over: MUDDY CREEK

1.2 M N INT MAPPLE GLADE, Garrett, MD

Built 1953 Load: 33.6 t ADT: 372

DURST ROAD

Fair

Over: NORTH BRANCH OF THE CASS

0.5 MI SE INT AMISH ROAD, Garrett, MD

Built 1999 Load: 33.6 t ADT: 139

Showing 1,951-2,000 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.