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

THRIFT ROAD

Fair

Over: TRIB TO PISCATAWAY CREEK

0.11 MI N OF WINDBROOK DR, Prince George's, MD

Built 1989 Load: 45.4 t ADT: 9,577

IS 68

Fair

Over: MD 144

0.57 MILE WEST OF US 220, Allegany, MD

Built 1967 Load: 45.8 t ADT: 26,680

US 50/301

Fair

Over: BOULTERS WAY

0.07 MILE WEST OF MD 2, Anne Arundel, MD

Built 1953 Load: 45.8 t ADT: 121,160

MD 25

Fair

Over: BLACKROCK RUN

1.46 MILE SOUTH OF MD 137, Baltimore, MD

Built 1995 Load: 45.8 t ADT: 3,551

MASEMORE ROAD

Fair

Over: BUSH CABIN RUN

1.4 MI N OF MT CARMEL RD, Baltimore, MD

Built 1910 Load: 45.8 t ADT: 275

MONROE STREET

Fair

Over: B&O MUSEUM RR

MONROE ST & MT CLARE MANS, Baltimore city, MD

Built 1993 Load: 45.8 t ADT: 17,281

IS 95 SB

Fair

Over: MTA LIGHT RAIL AND STORA

I-95 / I-395 INTERCHANGE, Baltimore city, MD

Built 1977 Load: 45.8 t ADT: 89,029

HARNEY ROAD

Fair

Over: PINEY CREEK

0.60 MI N OF MD 140, Carroll, MD

Built 1958 Load: 45.8 t ADT: 2,818

US 1

Fair

Over: OCTORARO CREEK

.54 MILE NORTH OF MD 591A, Cecil, MD

Built 1933 Load: 45.8 t ADT: 11,282

CHILDS ROAD

Fair

Over: LITTLE ELK CREEK

0.55 MI NE OF MD 545, Cecil, MD

Built 1946 Load: 45.8 t ADT: 964

I-95

Fair

Over: AMTRAK RR

Milepost M109.2, Cecil, MD

Built 1962 Load: 45.8 t ADT: 64,281

IS 270

Fair

Over: MONOCACY RIVER

1.32 MILE SOUTH OF MD 85, Frederick, MD

Built 1950 Load: 45.8 t ADT: 80,340

MD 175 WB & RMP B

Fair

Over: LITTLE PATUXENT RIVER

0.27 MILE NORTH OF US 29, Howard, MD

Built 1970 Load: 45.8 t ADT: 47,121

DUNLOGGIN ROAD

Fair

Over: PLUMTREE BRANCH

0.5 MI W OF ST JOHNS LANE, Howard, MD

Built 1965 Load: 45.8 t ADT: 1,621

MD 185

Fair

Over: CSX TRANS.

0.10 MILE NORTH OF MD 547, Montgomery, MD

Built 1957 Load: 45.8 t ADT: 42,252

IS 595

Fair

Over: CSXT & COLLINGTON BRANCH

0.47 MILE WEST OF MD 197, Prince George's, MD

Built 1992 Load: 45.8 t ADT: 113,590

US 50

Fair

Over: US 50PA

0.52 MILE WEST OF IS 95, Prince George's, MD

Built 1961 Load: 45.8 t ADT: 91,392

CASH CORNER ROAD

Fair

Over: JOHNSON CREEK

0.35 MILES EAST OF MD 667, Somerset, MD

Built 1998 Load: 45.8 t ADT: 356

MD 845A

Fair

Over: LITTLE ANTIETAM CREEK

0.56 MILE NORTH OF MD 34, Washington, MD

Built 1927 Load: 45.8 t ADT: 490

MD 60

Fair

Over: ANTIETAM CREEK

0.66 MILE WEST OF MD 62, Washington, MD

Built 1941 Load: 45.8 t ADT: 9,902

US 13 BUS SB

Fair

Over: NORFOLK SOUTHERN RR

1.0 MILE NORTH OF US 50BU, Wicomico, MD

Built 1951 Load: 45.8 t ADT: 16,405

US 113 NB

Fair

Over: CORKERS CREEK

1.80 MILES S OF US 113BU, Worcester, MD

Built 1971 Load: 45.8 t ADT: 3,644

CASH VALLEY ROAD

Fair

Over: UNNAMED STREAM

0.21 MI N OF US 40 ALT, Allegany, MD

Built 1966 Load: 46.3 t ADT: 3,430

US 40

Fair

Over: WHITEMARSH RUN

0.67 MILE WEST OF MD 43, Baltimore, MD

Built 1935 Load: 46.3 t ADT: 29,100

IS 83

Fair

Over: BUFFALO CREEK

2.80 MI S OF MD 137, Baltimore, MD

Built 1955 Load: 46.3 t ADT: 64,381

GLEN ARM ROAD

Fair

Over: HAYSTACK BRANCH

0.6 MI W OF HARFORD RD, Baltimore, MD

Built 1976 Load: 46.3 t ADT: 7,740

WASHINGTON BOULEVA

Fair

Over: GWYNNS FALLS

0.5 MI W MONROE ST, Baltimore city, MD

Built 1975 Load: 46.3 t ADT: 16,525

PEPPER ROAD

Fair

Over: FAULKNER BRANCH

0.8 MILES NORTH OF MD 318, Caroline, MD

Built 1994 Load: 46.3 t ADT: 342

HALTER ROAD

Fair

Over: BIG PIPE CREEK

0.12 MI N OF STUDY RD, Carroll, MD

Built 1966 Load: 46.3 t ADT: 669

BAILIFF ROAD

Fair

Over: STONY RUN

0.97 MI S OF THEODORE RD, Cecil, MD

Built 1950 Load: 46.3 t ADT: 219

MD 85

Fair

Over: BALLENGER CREEK

1.3 MILES SOUTH OF IS 270, Frederick, MD

Built 1926 Load: 46.3 t ADT: 17,450

CASHELL ROAD

Fair

Over: WILLIAMSBURG RUN

0.9 MI S OF BOWIE MILL RD, Montgomery, MD

Built 1972 Load: 46.3 t ADT: 6,159

US 301 NB

Fair

Over: WESTERN BRANCH

0.12 MILE S OF MD 976C, Prince George's, MD

Built 1959 Load: 46.3 t ADT: 35,812

BALTIMORE LANE

Fair

Over: FOLLY BRANCH

0.29 MI N OF MD 450, Prince George's, MD

Built 1998 Load: 46.3 t ADT: 990

KERBY HILL ROAD SE

Fair

Over: CAREY BRANCH

0.10 MI W OF MD 210, Prince George's, MD

Built 1948 Load: 46.3 t ADT: 1,518

SUITLAND PARKWAY

Fair

Over: SUITLAND ROAD

1.6 MILES WEST OF FORESTV, Prince George's, MD

Built 1944 Load: 46.3 t ADT: 16,850

US 40

Fair

Over: BEAVER CREEK

0.67 MILE WEST OF MD 66, Washington, MD

Built 1936 Load: 46.3 t ADT: 10,742

IS 70 EB

Fair

Over: ASHTON RD

0.76 MILE EAST OF MD 68, Washington, MD

Built 1965 Load: 46.3 t ADT: 40,770

BROADFORDING ROAD

Fair

Over: LITTLE CONOCOCHEAGUE CRK

1.59 MI N OF US RTE 40, Washington, MD

Built 1972 Load: 46.3 t ADT: 868

US 50 WB

Fair

Over: BARREN CREEK

0.26 MILE EAST OF MD 313, Wicomico, MD

Built 1950 Load: 46.3 t ADT: 25,871

MD 36

Fair

Over: NORTH BRANCH

0.04 MILE SOUTH OF MD 47, Allegany, MD

Built 1960 Load: 46.7 t ADT: 2,290

WAVERLY STREET

Fair

Over: GEORGES CREEK

0.03 MI W OF MD 937, Allegany, MD

Built 1993 Load: 46.7 t ADT: 595

MD 940

Fair

Over: CSX TRANS & GWYNNS FALLS

0.08 MILE SOUTH OF MD 140, Baltimore, MD

Built 1985 Load: 46.7 t ADT: 45,921

MERRITT BOULEVARD

Fair

Over: BREAD AND CHEESE CREEK

0.31 MI S. OF MD 208, Baltimore, MD

Built 1958 Load: 46.7 t ADT: 45,947

I-83 NB

Fair

Over: MTA LIGHT RAIL YARD

STA. 150-158, Baltimore city, MD

Built 1959 Load: 46.7 t ADT: 117,171

IS 95 NB

Fair

Over: GUSRYAN ST

500 FT W OF DUNDALK AVE, Baltimore city, MD

Built 1976 Load: 46.7 t ADT: 69,003

COON CLUB ROAD

Fair

Over: EAST BRANCH PATAPSCO RIV

0.15 MI E OF HOUCK RD, Carroll, MD

Built 1964 Load: 46.7 t ADT: 2,650

POORHOUSE ROAD

Fair

Over: MILL RUN

1 MI SE RIPLEY ROAD, Charles, MD

Built 1996 Load: 46.7 t ADT: 3,475

MD 136

Fair

Over: BIG BRANCH

2.64 MILES NORTH OF MD 24, Harford, MD

Built 1934 Load: 46.7 t ADT: 2,420

MORSE ROAD

Fair

Over: EAST BRANCH/WINTERS RUN

0.3 MILES NE OF MD 23, Harford, MD

Built 1997 Load: 46.7 t ADT: 1,045

Showing 2,701-2,750 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.