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

OLD YORK ROAD

Fair

Over: LITTLE GUNPOWDER FALLS

ON BALT CO LINE, Harford, MD

Built 1955 Load: 25.4 t ADT: 245

CARROLL MILL ROAD

Fair

Over: BENSON BRANCH

0.4 MI W MT ALBERT ROAD, Howard, MD

Built 1960 Load: 25.4 t ADT: 577

RIVER ROAD

Fair

Over: BROAD RUN

0.3 MI E OF ELMER SCHOOL, Montgomery, MD

Built 1911 Load: 25.4 t ADT: 444

MD 210

Fair

Over: HENSON CREEK

0.08 M N OF PALMER ROAD, Prince George's, MD

Built 1945 Load: 25.4 t ADT: 65,100

IS 95NB,CD RD & RP

Fair

Over: LITTLE PAINT BRANCH

.24 MILES SOUTH OF MD 212, Prince George's, MD

Built 1971 Load: 25.4 t ADT: 187,850

GREENBELT METRO DR

Fair

Over: I-495

0.2 MI. W. OF CHERRYWOOD, Prince George's, MD

Built 1989 Load: 25.4 t ADT: 3,326

ROWE ROAD

Fair

Over: LITTLE ANTIETAM CREEK

0.13 MI SW OF MD RTE 64, Washington, MD

Built 1974 Load: 25.4 t ADT: 934

MEMORIAL PLAZA DRI

Fair

Over: BEAVERDAM CREEK

1 MI SW GLEN AVENUE, Wicomico, MD

Built 1991 Load: 25.4 t ADT: 3,163

MD 12

Fair

Over: POCOMOKE RIVER

1.06 MILES S OF MD 354, Worcester, MD

Built 1932 Load: 25.4 t ADT: 5,865

PORTERS CROSSING R

Fair

Over: POCOMOKE RIVER

0.95 MI E OF MD 354, Worcester, MD

Built 1990 Load: 25.4 t ADT: 260

MAIN ST (MD 937)

Fair

Over: BRANCH OF GEORGES CREEK

0.36 MI N OF W VA LINE, Allegany, MD

Built 1933 Load: 25.8 t ADT: 3,555

TOWN CREEK ROAD

Fair

Over: TOWN CREEK

1.95 MI N OF L TOWN CK RD, Allegany, MD

Built 1964 Load: 25.8 t ADT: 320

SANDS ROAD

Fair

Over: STOCKETTS RUN

3.0 MI SOUTH OF MD 214, Anne Arundel, MD

Built 1964 Load: 25.8 t ADT: 2,001

LINDEN AVENUE

Fair

Over: EAST BRANCH HERBERT RUN

0.06 MI S OF EAST DR, Baltimore, MD

Built 1982 Load: 25.8 t ADT: 4,590

DULANEY VALLEY ROA

Fair

Over: DULANEY BRANCH

0.3 MI N MD RTE 542, Baltimore, MD

Built 1952 Load: 25.8 t ADT: 6,872

AVONDALE ROAD

Fair

Over: WHITE MARSH RUN

0.02 M N OF I 695, Baltimore, MD

Built 1971 Load: 25.8 t ADT: 4,232

I-395 SPUR SB

Fair

Over: HAMBURG ST & RR

Milepost M4.0, Baltimore city, MD

Built 1982 Load: 25.8 t ADT: 19,418

BAPTIST ROAD

Fair

Over: ALLOWAY CREEK

0.09 MI N OF STARNERS DAM, Carroll, MD

Built 1940 Load: 25.8 t ADT: 269

SALEM BOTTOM ROAD

Fair

Over: MORGAN RUN

0.26 MI SE OF BLOOM ROAD, Carroll, MD

Built 1964 Load: 25.8 t ADT: 982

MD 742

Fair

Over: YOUGHIOGHENY RIVER

0.48 MILE NORTH OF MD 42, Garrett, MD

Built 1932 Load: 25.8 t ADT: 1,184

US 1

Fair

Over: SUSQUEHANNA RIVER

ON CECIL CO LINE, Harford, MD

Built 1927 Load: 25.8 t ADT: 14,243

MD 175

Fair

Over: PEDESTRIAN WALKWAY

0.69 MILE SOUTH OF US 29, Howard, MD

Built 1975 Load: 25.8 t ADT: 44,142

MD 290

Fair

Over: CHESTER RIVER

ON QUEEN ANNES CO LINE, Kent, MD

Built 1951 Load: 25.8 t ADT: 2,011

IS 95 IL

Fair

Over: SOUTHWEST BRANCH

0.25 MILE SOUTH OF MD 214, Prince George's, MD

Built 1964 Load: 25.8 t ADT: 102,413

MD 695

Fair

Over: PATAPSCO RIVER

I-695 OVER PATAPSCO RIVER, Baltimore city, MD

Built 1976 Load: 25.9 t ADT: 30,767

PRIVATE LANE

Fair

Over: FISHING CREEK

200' W OF MOUNTAINDALE RD, Frederick, MD

Built 2007 Load: 25.9 t ADT: 50

US RTE 50 EB

Fair

Over: CHESAPEAKE BAY

6 MI E OF MD RTE 2, Anne Arundel, MD

Built 1951 Load: 26.3 t ADT: 38,923

GREEN ROAD

Fair

Over: LITTLE GUNPOWDER FALLS

1.0 MI N SWEET AIR RD, Baltimore, MD

Built 1990 Load: 26.3 t ADT: 603

HICKS ROAD

Fair

Over: LITTLE FALLS

1 MI SE OF BIG FALLS RD, Baltimore, MD

Built 1988 Load: 26.3 t ADT: 3,000

WESTERN RUN ROAD

Fair

Over: WESTERN RUN

1.3 MI N OF SHAWAN RD, Baltimore, MD

Built 1988 Load: 26.3 t ADT: 2,299

FREELAND ROAD

Fair

Over: LITTLE FALLS

1.3 MI NW OF MIDDLETOWN R, Baltimore, MD

Built 1986 Load: 26.3 t ADT: 1,699

HARTLEY MILL ROAD

Fair

Over: LONG GREEN CREEK

0.2 MI SE OF GLEN ARM RD, Baltimore, MD

Built 1988 Load: 26.3 t ADT: 1,841

BENTLEY ROAD

Fair

Over: BEETREE RUN

200 FEET N OF EAGLE MILL, Baltimore, MD

Built 1988 Load: 26.3 t ADT: 300

YORK ROAD NO 1

Fair

Over: SOUTH BRANCH GUNPOWDER F

1 M NE OF LINEBORO RD, Carroll, MD

Built 1940 Load: 26.3 t ADT: 88

MD 591B

Fair

Over: LOVE RUN

0.75 MILE SOUTH OF US 1, Cecil, MD

Built 1917 Load: 26.3 t ADT: 199

MD 478

Fair

Over: BR OF POTOMAC RIVER

0.23 MILE EAST OF MD 180, Frederick, MD

Built 1926 Load: 26.3 t ADT: 2,471

BULLFROG ROAD

Fair

Over: MONOCACY RIVER

0.6 MI S OF BOLLINGER SCL, Frederick, MD

Built 1908 Load: 26.3 t ADT: 324

WOODVILLE ROAD

Fair

Over: TALBOT BRANCH

AT TALBOT RUN RD INTERSEC, Frederick, MD

Built 1961 Load: 26.3 t ADT: 890

I-895 NB RAMP

Fair

Over: PATAPSCO RIVER

0.1 MI SOUTH OF I-195, Howard, MD

Built 1957 Load: 26.3 t ADT: 1,491

MD 291

Fair

Over: CYPRESS BRANCH

0.24 MILE EAST OF MD 313, Kent, MD

Built 1928 Load: 26.3 t ADT: 1,841

US 29

Fair

Over: SLIGO CREEK

0.14 M S OF FRANKLIN AVE, Montgomery, MD

Built 1936 Load: 26.3 t ADT: 55,302

MD 396

Fair

Over: LITTLE FALLS BRANCH

0.69 MILE WEST OF WASH DC, Montgomery, MD

Built 1931 Load: 26.3 t ADT: 15,581

OLD BALTIMORE PIKE

Fair

Over: INDIAN CREEK

1000 FT NE OF US 1, Prince George's, MD

Built 1984 Load: 26.3 t ADT: 14,447

51ST AVENUE

Fair

Over: TRIBUTARY TO PAINT BRANC

0.1 MILES S. OF CAMPUS DR, Prince George's, MD

Built 1989 Load: 26.3 t ADT: 300

IS 70 EB

Fair

Over: GR TONOLOWAY CK, CO RDS

0.67 MILE W OF MD 144WB, Washington, MD

Built 1965 Load: 26.3 t ADT: 19,611

MARBLE QUARRY ROAD

Fair

Over: LITTLE ANTIETAM CREEK

0.81 MI NW OF MD RTE 67, Washington, MD

Built 1985 Load: 26.3 t ADT: 178

JEFFERSON BOULEVAR

Fair

Over: HAMILTON RUN

0.5 MI E CANNON AVE, Washington, MD

Built 1929 Load: 26.3 t ADT: 9,505

US 13 BUS SB

Fair

Over: TONYTANK POND

0.34 MILE NORTH OF MD 513, Wicomico, MD

Built 1954 Load: 26.3 t ADT: 11,029

MD 346

Fair

Over: POCOMOKE RIVER

ON WORCESTER CO LINE, Wicomico, MD

Built 1946 Load: 26.3 t ADT: 2,382

MEZICK ROAD

Fair

Over: SHILES CREEK

1 MI EAST MUDDY HOLE RD, Wicomico, MD

Built 1994 Load: 26.3 t ADT: 242

Showing 1,401-1,450 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.