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

GWYNN OAK AVENUE

Fair

Over: GWYNNS FALLS

0.29 MI W OF BALT CITY, Baltimore, MD

Built 1900 Load: 32.7 t ADT: 20,280

MD 144

Fair

Over: PATAPSCO RIVER

ON HOWARD CO LINE, Baltimore, MD

Built 1914 Load: 32.7 t ADT: 10,511

MD 147

Fair

Over: HAYSTACK BRANCH

1.01 MI S OF MT VISTA RD, Baltimore, MD

Built 1915 Load: 32.7 t ADT: 5,752

YORK ROAD

Fair

Over: LITTLE FALLS

0.07 MI S OF MD 45, Baltimore, MD

Built 1809 Load: 32.7 t ADT: 499

MD 746A

Fair

Over: JONES FALLS

0.09 MILE NORTH OF MD 25, Baltimore, MD

Built 1992 Load: 32.7 t ADT: 220

MD 122

Fair

Over: BRANCH OF DEAD RUN

0.55 MILE EAST OF IS 695, Baltimore, MD

Built 1961 Load: 32.7 t ADT: 34,910

DARK HOLLOW ROAD

Fair

Over: LITTLE PINEY RUN

1.2 MI N OF DOVER ROAD, Baltimore, MD

Built 1925 Load: 32.7 t ADT: 382

RIDGE ROAD

Fair

Over: BENS RUN

0.2 MI S OF KRATZ LA, Baltimore, MD

Built 1920 Load: 32.7 t ADT: 3,923

BELMONT AVENUE

Fair

Over: DELAWARE RUN

0.59 MI S OF MD 128, Baltimore, MD

Built 1940 Load: 32.7 t ADT: 900

HUTCHINS MILL ROAD

Fair

Over: NELSON BRANCH

0.41 MI N OF HESS RD, Baltimore, MD

Built 1920 Load: 32.7 t ADT: 135

MANOR ROAD

Fair

Over: SAWMILL BRANCH

1.1 MI S OF JARRETTSV. PK, Baltimore, MD

Built 1962 Load: 32.7 t ADT: 4,207

CINDER ROAD

Fair

Over: SPRING BRANCH

0.88 MI E OF MD 45, Baltimore, MD

Built 1959 Load: 32.7 t ADT: 1,134

ELM ROAD

Fair

Over: WEST BRANCH HERBERT RUN

0.08 MI W OF OREGON AVE, Baltimore, MD

Built 1953 Load: 32.7 t ADT: 2,600

GWYNN OAK AVENUE

Fair

Over: DEAD RUN

0.05 MI S OF DOGWOOD RD, Baltimore, MD

Built 1956 Load: 32.7 t ADT: 6,000

SULPHUR SPRING ROA

Fair

Over: WEST BRANCH HERBERT RUN

0.40 MI W OF US 1, Baltimore, MD

Built 1959 Load: 32.7 t ADT: 4,355

TOWSONTOWN BOULEVA

Fair

Over: TOWSON RUN

0.15 MI E OF MD 139, Baltimore, MD

Built 1964 Load: 32.7 t ADT: 34,307

REGESTER AVENUE

Fair

Over: HERRING RUN

0.25 MI W OF MD 542, Baltimore, MD

Built 1965 Load: 32.7 t ADT: 2,765

SPARKS ROAD

Fair

Over: TRIBUTARY TO CARROLL BRA

0.3 MI W OF CARROLL RD, Baltimore, MD

Built 1990 Load: 32.7 t ADT: 2,525

SCOTT ADAM ROAD

Fair

Over: TRIBUTARY OF BEAVER DAM

0.09 MI E OF MD 45, Baltimore, MD

Built 1965 Load: 32.7 t ADT: 2,200

EAST HOMBERG AVENU

Fair

Over: TRIBUTARY TO DEEP CREEK

50 FT. SW. OF MD RTE 702, Baltimore, MD

Built 1975 Load: 32.7 t ADT: 2,638

WALTHER BOULEVARD

Fair

Over: WHITE MARSH RUN

0.6 MI E. EX. 31C I-695, Baltimore, MD

Built 1990 Load: 32.7 t ADT: 11,638

McDONOGH ROAD

Fair

Over: GWYNNS FALLS

0.15 MI W OF IS 795, Baltimore, MD

Built 1941 Load: 32.7 t ADT: 16,775

PRETTYBOY DAM ROAD

Fair

Over: PRETTYBOY RESERVOIR

2.6 MI N MOUNT CARMEL RD, Baltimore, MD

Built 1932 Load: 32.7 t ADT: 400

MILFORD MILL EAST

Fair

Over: TRIB OF GWYNNS FALLS

MILFORD MILL METRO, Baltimore, MD

Built 1986 Load: 32.7 t ADT: 300

I-95

Fair

Over: HONEYGO RUN

0.6 MI N OF MD 43, Baltimore, MD

Built 1963 Load: 32.7 t ADT: 172,113

I-170 WB RAMP

Fair

Over: ACCESS ROAD

I-170 WB RAMP OVER ACCESS, Baltimore city, MD

Built 1979 Load: 32.7 t ADT: 23,650

I-170 EB RAMP

Fair

Over: ACCESS ROAD

I-170 EB RAMP OVER ACCESS, Baltimore city, MD

Built 1979 Load: 32.7 t ADT: 1,305

US 1, MONROE STREE

Fair

Over: AMTRAK

0.5 MI S OF NORTH AVE, Baltimore city, MD

Built 1900 Load: 32.7 t ADT: 9,999

LOMBARD STREET

Fair

Over: JONES FALLS

0.1 MI N OF PRATT ST, Baltimore city, MD

Built 1974 Load: 32.7 t ADT: 38,036

NORTH AVENUE

Fair

Over: JONES FALLS, FALLS RD,RR

NORTH AVE OVER CSX, Baltimore city, MD

Built 1895 Load: 32.7 t ADT: 20,361

HILTON PARKWAY

Fair

Over: GELSTON RUN

0.4 MI N EDMONDSON AVE, Baltimore city, MD

Built 1938 Load: 32.7 t ADT: 9,040

LIBERTY HEIGHTS AV

Fair

Over: POWDER MILL RUN

0.1 MI W POWDER MILL LN, Baltimore city, MD

Built 1966 Load: 32.7 t ADT: 28,441

BALTIMORE STREET

Fair

Over: GWYNNS FALLS, CSX

0.2 MI E HILTON PKWY, Baltimore city, MD

Built 1931 Load: 32.7 t ADT: 9,375

BANCROFT ROAD

Fair

Over: WESTERN RUN

0.1 MI N CROSS COUNTRY B, Baltimore city, MD

Built 1950 Load: 32.7 t ADT: 39,339

I-83

Fair

Over: JONES FALLS (MI. 7.1 TO

0.6 MI S COLD SPRING LN, Baltimore city, MD

Built 1959 Load: 32.7 t ADT: 105,600

UNIVERSITY PARKWAY

Fair

Over: STONY RUN

0.6 MI W CHARLES STREET, Baltimore city, MD

Built 1908 Load: 32.7 t ADT: 6,340

GREELY ROAD

Fair

Over: WESTERN RUN

0.4 MI N KELLY AVE & I 83, Baltimore city, MD

Built 1983 Load: 32.7 t ADT: 10,900

BONNIEVIEW DRIVE

Fair

Over: WESTERN RUN

BONNIEVIEW DR @ WSTRN RUN, Baltimore city, MD

Built 1950 Load: 32.7 t ADT: 749

HILLEN ROAD

Fair

Over: CHINQUAPIN RUN

0.2 MI N OF COLDSPRING LA, Baltimore city, MD

Built 1900 Load: 32.7 t ADT: 11,996

EDISON HIGHWAY

Fair

Over: AMTRAK RAILROAD

0.2 MI N OF MONUMENT ST, Baltimore city, MD

Built 1931 Load: 32.7 t ADT: 18,376

HAMILTON AVENUE

Fair

Over: MOORE'S RUN

0.6 MI SE OF BELAIR RD, Baltimore city, MD

Built 1964 Load: 32.7 t ADT: 4,563

MORAVIA ROAD

Fair

Over: BIDDISON RUN

0.2 MI N OF IS 895, Baltimore city, MD

Built 1966 Load: 32.7 t ADT: 27,420

BELAIR ROAD

Fair

Over: HERRING RUN

0.6 MI W ERDMAN AVE, Baltimore city, MD

Built 1925 Load: 32.7 t ADT: 22,752

MORAVIA PARK DRIVE

Fair

Over: BIDDISON RUN

0.3 MI NE OF IS 895, Baltimore city, MD

Built 1966 Load: 32.7 t ADT: 1,374

RUSSELL AND BUSH S

Fair

Over: SPRING GARDENS

0.3 MI NE OF MONROE ST, Baltimore city, MD

Built 1910 Load: 32.7 t ADT: 2,125

CHESAPEAKE AVENUE

Fair

Over: TRIB. TO PATAPSCO RIVER

CHESAPEAKE AVE W OF 8THST, Baltimore city, MD

Built 1920 Load: 32.7 t ADT: 3,951

LOCH RAVEN DRIVE

Fair

Over: TOWSON RUN

0.9 MI E CROMWELL BRDG RD, Baltimore city, MD

Built 1879 Load: 32.7 t ADT: 896

EAGER STREET

Fair

Over: FALLSWAY

EAGER STREET AT FALLSWAY, Baltimore city, MD

Built 1900 Load: 32.7 t ADT: 1,695

LOCH RAVEN BOULEVA

Fair

Over: W BRANCH OF HERRING RUN

0.3 MI N OF NORTHERN PKY, Baltimore city, MD

Built 1930 Load: 32.7 t ADT: 8,543

DUKELAND STREET

Fair

Over: MAIDENS CHOICE CREEK

0.5 MI E OF CATON AVE, Baltimore city, MD

Built 1950 Load: 32.7 t ADT: 11,447

Showing 1,701-1,750 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.