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

BRENBROOK DRIVE

Fair

Over: SCOTTS LEVEL BRANCH

0.67 MI N OF MD 26, Baltimore, MD

Built 1982 Load: 67.1 t ADT: 13,165

FALLS ROAD

Fair

Over: GRAVES RUN

0.6 MI N OF BECKLEYSVILLE, Baltimore, MD

Built 1991 Load: 67.1 t ADT: 1,846

I-83 NB OFF RAMP

Fair

Over: MD 25, FALLS RD

OFF RAMP OVER FALLS RD, Baltimore city, MD

Built 1960 Load: 67.1 t ADT: 27,539

I-83

Fair

Over: ON RAMP FROM FALLS ROAD

JFX OVER FALLS RD ON RAMP, Baltimore city, MD

Built 1959 Load: 67.1 t ADT: 141,041

MULLINIX MILL ROAD

Fair

Over: PATUXENT RIVER

1.2 MI W OF MD 94, Howard, MD

Built 1991 Load: 67.1 t ADT: 383

MD 117

Fair

Over: BUCKLODGE BRANCH

3.12 MILES NORTH OF MD 28, Montgomery, MD

Built 1932 Load: 67.1 t ADT: 5,572

MD 118

Fair

Over: GREAT SENECA CREEK

1.3 MILES NORTH OF MD 28, Montgomery, MD

Built 1931 Load: 67.1 t ADT: 6,121

NICHOLSON LANE

Fair

Over: CSXT RAILROAD

0.5 MILES EAST OF MD 355, Montgomery, MD

Built 2008 Load: 67.1 t ADT: 38,971

DENNIS AVENUE

Fair

Over: SLIGO CREEK

0.7 MI E OF JCT SR 97, Montgomery, MD

Built 1999 Load: 67.1 t ADT: 10,971

BEACH DRIVE

Fair

Over: ROCK CREEK

0.15 MI N OF JCT SR 547, Montgomery, MD

Built 1966 Load: 67.1 t ADT: 8,663

FRANKLIN GIBSON RD

Fair

Over: TRACYS CREEK

0.11 MI SOUTH OF MD 258, Anne Arundel, MD

Built 1998 Load: 67.6 t ADT: 253

I-83 NB OFF RAMP T

Fair

Over: I-83 BERM

NEAR COLDSPRING LANE, Baltimore city, MD

Built 1959 Load: 67.6 t ADT: 72,000

PARRAN ROAD

Fair

Over: SAINT LEONARD CREEK

0.3 MI N OF MD RTE 2/4, Calvert, MD

Built 1994 Load: 67.6 t ADT: 682

LILY PONS ROAD

Fair

Over: SMALL STREAM

0.1 MI EAST OF MD RTE 85, Frederick, MD

Built 1976 Load: 67.6 t ADT: 394

IS 95 NB

Fair

Over: STANSFIELD RD

0.50 MI N OF PG CO, Howard, MD

Built 1970 Load: 67.6 t ADT: 186,040

SUNDAYS LANE

Fair

Over: TUSCARORA CREEK

0.25 MI E OPOSSUMTOWN PIK, Frederick, MD

Built 1978 Load: 68.0 t ADT: 505

MD 135

Fair

Over: CSX TRANSPORTATION

0.3 MI W OF ALLEGANY CO, Garrett, MD

Built 1957 Load: 68.0 t ADT: 3,542

TUCKERMAN LANE

Fair

Over: CABIN JOHN CREEK

1 MI E OF SEVEN LOCKS RD, Montgomery, MD

Built 1966 Load: 68.0 t ADT: 24,539

BW PARKWAY

Fair

Over: CSX RAILROAD

0.1 MILES SOUTH OF MD ROU, Prince George's, MD

Built 1953 Load: 68.0 t ADT: 80,000

WATSON ROAD

Fair

Over: CORSICA RIVER

0.2 MI N OF MD RTE 304, Queen Anne's, MD

Built 1993 Load: 68.0 t ADT: 787

NORTH AVE. ON-RAMP

Fair

Over: I-83 SB

ON RAMP TO SB I-83, Baltimore city, MD

Built 1959 Load: 68.5 t ADT: 6,289

I-83

Fair

Over: WESTERN RUN

0.1 MI N OF KELLY AVE, Baltimore city, MD

Built 1959 Load: 68.5 t ADT: 32,377

MD 267

Fair

Over: AMTRAK

0.12 MILE WEST OF MD 7C, Cecil, MD

Built 1974 Load: 68.5 t ADT: 1,680

SINGER ROAD

Fair

Over: WINTERS RUN

1.1 MILES W OF MD 24, Harford, MD

Built 1983 Load: 68.5 t ADT: 9,170

DERRICK PLACE

Fair

Over: BUTLER BRANCH

0.03 MI N OF ARMOR DRIVE, Prince George's, MD

Built 1974 Load: 68.5 t ADT: 357

CROUSE MILL ROAD

Fair

Over: TUCKAHOE CREEK

0.9 MI E. OF MD 481, Queen Anne's, MD

Built 1993 Load: 68.5 t ADT: 577

MD 352

Fair

Over: GREEN HILL CREEK

3.82 MILES WEST OF MD 349, Wicomico, MD

Built 1931 Load: 68.5 t ADT: 1,452

US 220

Fair

Over: MILL RUN

0.9 MILE SOUTH OF MD 830B, Allegany, MD

Built 1900 Load: 68.9 t ADT: 7,111

MD 295 NBR

Fair

Over: PATAPSCO RIVER

ON BALT CO LINE, Anne Arundel, MD

Built 1949 Load: 68.9 t ADT: 80,822

MD 295 SBR

Fair

Over: PATAPSCO RIVER

ON BALT CO LINE, Anne Arundel, MD

Built 1949 Load: 68.9 t ADT: 80,822

CORBETT ROAD

Fair

Over: GUNPOWDER FALLS

1.0 MI NW OF CARROLL ROAD, Baltimore, MD

Built 1945 Load: 68.9 t ADT: 1,149

US 40

Fair

Over: LITTLE CATOCTIN CREEK

0.2 M E OF HARMONY ROAD, Frederick, MD

Built 1936 Load: 68.9 t ADT: 5,522

DAYSVILLE ROAD

Fair

Over: ISRAEL CREEK

0.5 MI E OF MD RTE 194, Frederick, MD

Built 1990 Load: 68.9 t ADT: 1,392

CRUM ROAD

Fair

Over: ISRAEL CREEK

0.5 MI S OF WALKERSVILLE, Frederick, MD

Built 1994 Load: 68.9 t ADT: 3,121

MD 144A

Fair

Over: BR OF MIDDLE PATUXENT RI

1.5 MILES WEST OF US 32, Howard, MD

Built 1982 Load: 68.9 t ADT: 3,451

COLEMAN ROAD

Fair

Over: RED LION BRANCH

0.3 MI. NE OF MD 290, Queen Anne's, MD

Built 1994 Load: 68.9 t ADT: 120

MD 410

Fair

Over: NORTHWEST BRANCH

0.68 MILE EAST OF MD 212, Prince George's, MD

Built 1955 Load: 69.4 t ADT: 24,602

TOWN CREEK ROAD

Fair

Over: FLINTSTONE CREEK

0.02 MI S OF MD 144, Allegany, MD

Built 1992 Load: 69.8 t ADT: 310

FRANKFURST AVE

Fair

Over: STREAM

Milepost M7.8, Baltimore city, MD

Built 1957 Load: 69.8 t ADT: 50,800

US 15

Fair

Over: MARYLAND MIDLAND RR

0.26 MILE SOUTH OF MD 550, Frederick, MD

Built 1957 Load: 69.8 t ADT: 28,321

UNDERWOOD ROAD

Fair

Over: YOUGHIOGHENY RIVER

0.5 M NW INT UNDERWOOD RD, Garrett, MD

Built 1965 Load: 69.8 t ADT: 1,138

IS 95 SB

Fair

Over: LITTLE PAINT BRANCH

0.23 MILE NORTH OF MD 212, Prince George's, MD

Built 1971 Load: 69.8 t ADT: 183,230

MD 838 WYE ISLAND

Fair

Over: WYE NARROWS

WYE ISLAND, Queen Anne's, MD

Built 1990 Load: 69.8 t ADT: 108

MD 45

Fair

Over: NCR TRAIL

0.12 MI N OF FREDERICK RD, Baltimore, MD

Built 1930 Load: 70.3 t ADT: 5,350

STAFFORD ROAD

Fair

Over: ROCK RUN

0.1 MI NW OF ROCK RUN RD, Harford, MD

Built 1991 Load: 70.3 t ADT: 287

IS 595 EB

Fair

Over: FOLLY BRANCH

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

Built 1955 Load: 70.3 t ADT: 113,590

LONGNECKER ROAD

Fair

Over: SLADE RUN

0.74 MI N OF MD 128, Baltimore, MD

Built 1920 Load: 70.7 t ADT: 315

JOHN HYDE ROAD

Fair

Over: TURKEYFOOT RUN

0.04 MI N OF SMITH RD, Carroll, MD

Built 1978 Load: 70.7 t ADT: 362

MD 32 WB

Fair

Over: LITTLE PATUXENT RIVER

0.23 M S OF SHAKER DRIVE, Howard, MD

Built 1981 Load: 70.7 t ADT: 81,712

LANGFORD ROAD

Fair

Over: MILL POND

0.01 MI W OF BRICES MILL, Kent, MD

Built 1989 Load: 70.7 t ADT: 265

Showing 3,351-3,400 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.