State profile · Below median Poor share

Maryland bridge safety

Condition ratings, load ratings, and Poor-condition data for every public highway bridge in Maryland, based on the FHWA National Bridge Inventory.

5,527
Public bridges
25.9%
Good condition
4.3%
Poor condition

Data updated May 2026

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 whose lowest applicable component is rated 0-4

-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 - Poor-condition 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 by Poor-condition share (lower share = better)

States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Maryland on the same metric.

CT

Connecticut

3.95% top marginal rate
Structure
Progressive
Burden @ $100K
$4,277

TN

Tennessee

3.97% top marginal rate
Structure
Progressive
Burden @ $100K
$20,426
Selected

MD

Maryland

4.27% top marginal rate
Structure
Progressive
Burden @ $100K
$5,527

CO

Colorado

4.32% top marginal rate
Structure
Progressive
Burden @ $100K
$8,965

OR

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 the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.

All Bridges in Maryland

ROE ROAD

Fair

Over: RED LION BRANCH

0.4 MI NW OF MD 290, Queen Anne's, MD

Built 1992 Load: 35.4 t ADT: 110

MD 5

Fair

Over: FISHERMAN CREEK

0.31 MILE NORTH OF MD 584, St. Mary's, MD

Built 1936 Load: 35.4 t ADT: 7,244

MD 245

Fair

Over: BROOKS RUN

1.71 MILES S OF MD 235, St. Mary's, MD

Built 1950 Load: 35.4 t ADT: 8,324

US 50

Fair

Over: TRIB TO POTTS MILL CREEK

1.26 MILES E OF MD 662B, Talbot, MD

Built 1945 Load: 35.4 t ADT: 31,938

US 40

Fair

Over: LANDIS SPRING BRANCH

0.61 MILE EAST OF IS 70, Washington, MD

Built 1936 Load: 35.4 t ADT: 10,742

MD 60

Fair

Over: MARSH RUN

2.87 MILES WEST OF MD 62, Washington, MD

Built 1900 Load: 35.4 t ADT: 12,172

CONWAY ROAD

Fair

Over: LITTLE PATUXENT RIVER

0.43 MI W OF MD 3, Anne Arundel, MD

Built 1966 Load: 35.8 t ADT: 9,663

MD 7

Fair

Over: HONEYGO RUN

0.07 MI S OF EBENEZER RD, Baltimore, MD

Built 1950 Load: 35.8 t ADT: 16,450

MD 147

Fair

Over: LITTLE GUNPOWDER FALLS

ON HARFORD CO LINE, Baltimore, MD

Built 1928 Load: 35.8 t ADT: 10,192

MD 695 OL

Fair

Over: AMTRAK & BACK RIVER

0.75 MILE SOUTH OF MD 150, Baltimore, MD

Built 1968 Load: 35.8 t ADT: 49,829

BEAVER DAM ROAD

Fair

Over: OREGON BRANCH

0.3 MI S OF SHAWAN ROAD, Baltimore, MD

Built 1952 Load: 35.8 t ADT: 6,171

SULPHUR SPRING ROA

Fair

Over: EAST BRANCH HERBERT RUN

INTER SELMA & SUL SPRNG, Baltimore, MD

Built 1962 Load: 35.8 t ADT: 20,845

FITCH AVENUE

Fair

Over: TRIBUTARY TO STEMMERS RU

0.2 MI E OF BELAIR RD, Baltimore, MD

Built 1979 Load: 35.8 t ADT: 2,860

FREDERICK AVENUE

Fair

Over: AMTRAK

AT JCT WITH HILTON ST., Baltimore city, MD

Built 1925 Load: 35.8 t ADT: 2,270

MD 7

Fair

Over: BYNUM RUN

0.17 MILE SOUTH OF MD 136, Harford, MD

Built 1923 Load: 35.8 t ADT: 11,350

MD 132B

Fair

Over: SWAN CREEK

0.33 MILE SOUTH OF US 40, Harford, MD

Built 1930 Load: 35.8 t ADT: 4,030

US 1

Fair

Over: DORSEY RUN

0.04 MILE S OF MD 958P, Howard, MD

Built 1929 Load: 35.8 t ADT: 21,992

MD 32 WBR

Fair

Over: MIDDLE PATUXENT RIVER

0.89 MILE NORTH OF US 29, Howard, MD

Built 1985 Load: 35.8 t ADT: 48,061

RIVER ROAD

Fair

Over: TRIBUTARY OF PATAPSCO RI

PATAPSCO VALLEY ST PARK, Howard, MD

Built 1997 Load: 35.8 t ADT: 100

WOODFIELD SCHOOL R

Fair

Over: GREAT SENECA CREEK

0.5 MILES NORTH OF MD 124, Montgomery, MD

Built 1974 Load: 35.8 t ADT: 160

MD 214

Fair

Over: WESTERN BRANCH

0.48 MILE WEST OD MD 193, Prince George's, MD

Built 1987 Load: 35.8 t ADT: 48,951

US 301 SB

Fair

Over: WESTERN BRANCH

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

Built 1949 Load: 35.8 t ADT: 35,812

MD 410

Fair

Over: AMTRAK, WMATA, BEAVER CR

0.17 MILE EAST OF US 50, Prince George's, MD

Built 1988 Load: 35.8 t ADT: 20,822

RITCHIE ROAD

Fair

Over: TRIBUTARY TO SOUTHWEST

0.37 MI SOUTH OF MD 214, Prince George's, MD

Built 1980 Load: 35.8 t ADT: 21,862

LOTTSFORD VISTA RD

Fair

Over: LOTTSFORD BRANCH

2.23 MI SOUTH OF MD 704, Prince George's, MD

Built 1999 Load: 35.8 t ADT: 7,518

WILLIAM BEANES RD

Fair

Over: FEDERAL SPRING BRANCH

1.1 MI EAST OF OSBORNE RD, Prince George's, MD

Built 1964 Load: 35.8 t ADT: 763

STUART LANE

Fair

Over: TRIBUTARY TO PISCATAWAY

0.2 MI WEST OF MD 5, Prince George's, MD

Built 1993 Load: 35.8 t ADT: 1,571

MD 302

Fair

Over: BR OF RED LION BRANCH

0.13 MILE WEST OF MD 313, Queen Anne's, MD

Built 1974 Load: 35.8 t ADT: 3,001

MD 413

Fair

Over: BIG ANNEMESSEX RIVER

2.59 MILES S OF MD 361, Somerset, MD

Built 1949 Load: 35.8 t ADT: 5,670

US 13 NB

Fair

Over: WAGRAM CREEK

0.56 M N OF VA STATE LINE, Worcester, MD

Built 1954 Load: 35.8 t ADT: 12,933

MD 639 WILLIAMS RD

Fair

Over: EVITTS CREEK

1.51 MILES SOUTH OF IS 68, Allegany, MD

Built 1966 Load: 36.3 t ADT: 2,530

MD 794

Fair

Over: GALLOWAY CREEK

0.76 MILE SOUTH OF MD 408, Anne Arundel, MD

Built 1997 Load: 36.3 t ADT: 1,571

MD 423

Fair

Over: BRANCH OF HERRING BAY

2.44 MILE EAST OF MD 2, Anne Arundel, MD

Built 1989 Load: 36.3 t ADT: 1,492

PATUXENT ROAD

Fair

Over: LITTLE PATUXENT RIVER

1.9 MI S OF WAUGH CH RD, Anne Arundel, MD

Built 1966 Load: 36.3 t ADT: 7,376

MD 139

Fair

Over: TOWSON RUN

0.05 M N/TOWSONTOWN BLVD, Baltimore, MD

Built 1957 Load: 36.3 t ADT: 39,381

MARRIOTTSVILLE ROA

Fair

Over: FALLS RUN

0.28 MI W OF W CHAPEL RD, Baltimore, MD

Built 1984 Load: 36.3 t ADT: 4,050

RAMP 'X'

Fair

Over: OWINGS MILLS BOULEVARD

0.4 MI SW OF IS 795, Baltimore, MD

Built 1986 Load: 36.3 t ADT: 3,131

COVERED BRIDGE ROA

Fair

Over: TRIBUTARY TO GUNPOWDER F

0.25 NE OF NORTH END MD41, Baltimore, MD

Built 1960 Load: 36.3 t ADT: 1,947

MD 16

Fair

Over: MILL CREEK

0.01 MILE NORTH OF MD 617, Caroline, MD

Built 1968 Load: 36.3 t ADT: 5,417

MD 404 WB

Fair

Over: WATTS CREEK

0.25 MILE WEST OF MD 16, Caroline, MD

Built 2006 Load: 36.3 t ADT: 18,941

GRAVE RUN ROAD

Fair

Over: GUNPOWDER FALLS

0.14 MI N OF ROLLER ROAD, Carroll, MD

Built 1970 Load: 36.3 t ADT: 660

US 40

Fair

Over: TRIB TO HAWBOTTOM BRANCH

0.29 MI E OF HOLLOW ROAD, Frederick, MD

Built 1936 Load: 36.3 t ADT: 5,522

DOUBS ROAD

Fair

Over: TUSCARORA CREEK

1.23 MI W OF NEW DESIGN R, Frederick, MD

Built 1950 Load: 36.3 t ADT: 327

US 219

Fair

Over: WILSON RUN

0.025 M N OF E GREEN ST, Garrett, MD

Built 1925 Load: 36.3 t ADT: 10,524

SAVAGE RIVER ROAD

Fair

Over: SAVAGE RIVER

0.9 MI NW OF MD 135, Garrett, MD

Built 2007 Load: 36.3 t ADT: 285

MD 24

Fair

Over: DEER CREEK

2.17 MILES S OF MD 165, Harford, MD

Built 1934 Load: 36.3 t ADT: 3,930

SPESUTIA ROAD

Fair

Over: CRANBERRY RUN

0.2 MILES N OF MD 159, Harford, MD

Built 1966 Load: 36.3 t ADT: 4,242

PALMER ROAD

Fair

Over: ROMNEY CREEK

80 YDS W OF OLD BALTIMORE, Harford, MD

Built 1942 Load: 36.3 t ADT: 100

US 1

Fair

Over: BRANCH OF DORSEY RUN

1.03 MILES S OF MD 958P, Howard, MD

Built 1929 Load: 36.3 t ADT: 21,992

MD 94

Fair

Over: CABIN BRANCH

1.03 MILES N OF MONT CO, Howard, MD

Built 1970 Load: 36.3 t ADT: 3,022

Showing 2,101-2,150 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.

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). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.