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

DOGWOOD RD

Good

Over: DOGWOOD RUN

0.1 MI E OF GILLESPIE RD, Cecil, MD

Built 1996 Load: 60.3 t ADT: 991

BILLINGSLEY RD WBR

Good

Over: PINEY BRANCH

2.5 MI E OF ST CHAR. PKWY, Charles, MD

Built 1994 Load: 60.3 t ADT: 7,022

OLD FREDERICK ROAD

Good

Over: FISHING CREEK

AT UTICA RD INT, Frederick, MD

Built 1954 Load: 60.3 t ADT: 3,332

MADONNA ROAD

Good

Over: CATTAIL BRANCH

0.4 MILE S OF MT HOREB RD, Harford, MD

Built 1992 Load: 60.3 t ADT: 789

MD 200 (ICC) WB

Good

Over: Good Hope Tributary

0.45 Mi East of MD650, Montgomery, MD

Built 2010 Load: 60.3 t ADT: 32,064

RACE TRACK ROAD

Good

Over: HORSEPEN BRANCH

1.37 MILES S OF MD 197, Prince George's, MD

Built 2006 Load: 60.3 t ADT: 21,230

ELL MORRIS ROAD

Good

Over: LONG MARSH DITCH

1.12 MI EAST OF MD 313, Queen Anne's, MD

Built 1985 Load: 60.3 t ADT: 720

MORRIS ROAD

Good

Over: CAMPBELL DITCH

1.7 MI N OF MD 350, Wicomico, MD

Built 1998 Load: 60.3 t ADT: 122

SUNNYSIDE AVENUE

Good

Over: INDIAN CREEK

0.09 MI W OF MD 201, Prince George's, MD

Built 2020 Load: 60.6 t ADT: 8,931

MERRY KNOLL LANE

Good

Over: BRANCH OF OCTORARO CREEK

0.45 MI N OF US RTE 1, Cecil, MD

Built 1990 Load: 60.8 t ADT: 188

MIDDLETOWN ROAD

Good

Over: PINEY BRANCH

0.75 MI S. OF MD RTE 228, Charles, MD

Built 2007 Load: 60.8 t ADT: 3,414

GLISSANS MILL RD

Good

Over: SOUTH FORK LINGANORE CRK

0.1 MI W OF EMERS BURR RD, Frederick, MD

Built 1983 Load: 60.8 t ADT: 884

TERRA FIRMA ROAD

Good

Over: LONG BRANCH

AT MD 144, Frederick, MD

Built 2006 Load: 60.8 t ADT: 3,143

WALTER MARTZ ROAD

Good

Over: LITTLE TUSCARORA CREEK

0.3 MI N OF POOLE JONES R, Frederick, MD

Built 2012 Load: 60.8 t ADT: 4,173

OLD MONTGOMERY RD

Good

Over: DEEP RUN

0.5 MI S OF MD RTE 103, Howard, MD

Built 2013 Load: 60.8 t ADT: 9,224

BROOKSIDE VISITORS

Good

Over: NORTHWEST BRANCH TRIBUTA

ENT. FROM GLENALLEN AVE., Montgomery, MD

Built 1999 Load: 60.8 t ADT: 55

EDEN MILL ROAD

Good

Over: BIG BRANCH

0.4 MILES W OF FAWN GR RD, Harford, MD

Built 1961 Load: 60.9 t ADT: 177

MD 36

Good

Over: GEORGES CREEK

0.09 MILE SOUTH OF MD 935, Allegany, MD

Built 1981 Load: 61.2 t ADT: 5,740

MD 70

Good

Over: WEEMS CREEK

0.37 MI S OF IS 595, Anne Arundel, MD

Built 2006 Load: 61.2 t ADT: 38,762

STONEY RUN ROAD

Good

Over: STONEY RUN

0.1 MI W OF MD RTE 170, Anne Arundel, MD

Built 1982 Load: 61.2 t ADT: 10,559

GWYNNBROOK AVENUE

Good

Over: GWYNNS FALLS

1.04 MILES E OF MD 140, Baltimore, MD

Built 1992 Load: 61.2 t ADT: 9,800

GREENSPRING AVENUE

Good

Over: MOORES BRANCH

0.65 MI S OF MD 133, Baltimore, MD

Built 1965 Load: 61.2 t ADT: 8,341

I95 NORTHBOUND

Good

Over: FUTURE RAMP MB

I695 IS95 Interchange, Baltimore, MD

Built 2008 Load: 61.2 t ADT: 52,628

MD 4 RAMP '5'

Good

Over: LYONS CREEK

AA/CAL COUNTY LINE, Calvert, MD

Built 2003 Load: 61.2 t ADT: 7,166

PEACH TREE ROAD

Good

Over: CSXT RAILROAD

1 MI S OF BARNESVILLE RD, Montgomery, MD

Built 2000 Load: 61.2 t ADT: 400

MD 213

Good

Over: MILL STREAM BRANCH

0.29 MILE NORTH OF MD 18C, Queen Anne's, MD

Built 2019 Load: 61.2 t ADT: 17,000

MD 68

Good

Over: ST JAMES RUN

1.338 MI W OF MD 65, Washington, MD

Built 2014 Load: 61.2 t ADT: 5,200

MD 61 (CANAL PARKW

Good

Over: NORTH BRANCH OF POTOMAC

ON WEST VIRGINIA, Allegany, MD

Built 1992 Load: 61.7 t ADT: 11,501

ROY SHAFER ROAD

Good

Over: CONE BRANCH

0.37 MI N OF BRDG 0306, Frederick, MD

Built 1982 Load: 61.7 t ADT: 105

MD 151 (SPARROWS P

Good

Over: MD 151B AND TRADEPOINT R

0.1 MI S. OF MD 158, Baltimore, MD

Built 1954 Load: 61.9 t ADT: 21,000

RYE STREET

Good

Over: BRADDOCK RUN

0.20 MI W OF US 40 ALT, Allegany, MD

Built 2007 Load: 62.1 t ADT: 1,140

GUILFORD ROAD

Good

Over: DORSEY RUN

0.58 MI S OF HO CO LINE, Anne Arundel, MD

Built 1984 Load: 62.1 t ADT: 11,711

HARRIS MILL ROAD

Good

Over: DEER CREEK

0.59 MI E OF MASON-DIX RD, Baltimore, MD

Built 2006 Load: 62.1 t ADT: 298

BUSINESS PARK DRIV

Good

Over: TRIBUTARY TO ROLAND RUN

0.4 MI S OF TIMONIUM RD, Baltimore, MD

Built 1992 Load: 62.1 t ADT: 5,516

CHARLES STREET ON-

Good

Over: AMTRAK PROPERTY

AT CHARLES ST. OVER I-83, Baltimore city, MD

Built 2003 Load: 62.1 t ADT: 10,850

LUMS ROAD

Good

Over: NORTHEAST CREEK

0.49 MI E OF MD 272, Cecil, MD

Built 1992 Load: 62.1 t ADT: 1,586

BIKLE ROAD

Good

Over: LITTLE ANTIETAM CREEK

0.6 MI NE OF MD RTE 64, Washington, MD

Built 1998 Load: 62.1 t ADT: 1,091

MD 736

Good

Over: SAND SPRING RUN

0.81 MI N OF IS 68, Allegany, MD

Built 1975 Load: 62.6 t ADT: 4,531

DAIRY ROAD

Good

Over: OWL BRANCH

1MI S. OF I-83 EXIT33, Baltimore, MD

Built 2011 Load: 62.6 t ADT: 727

IS 95 RAMP J

Good

Over: GUSRYAN ST

500 FT S OF DUNDALK AVE, Baltimore city, MD

Built 1976 Load: 62.6 t ADT: 1,851

MD 97

Good

Over: TUCKERS BRANCH

1.02 M S OF BR NO 0306400, Carroll, MD

Built 1976 Load: 62.6 t ADT: 8,770

UNION BRIDGE ROAD

Good

Over: CHERRY BRANCH

UNION BRIDGE ROAD, Carroll, MD

Built 1990 Load: 62.6 t ADT: 1,034

THIRD STREET

Good

Over: CSX RAILROAD

0.1 MI S. OF RTE 219, Garrett, MD

Built 2009 Load: 62.6 t ADT: 1,302

IS 495 OL

Good

Over: PAINT BRANCH

1.42 M E OF MONTGOMERY CO, Prince George's, MD

Built 1964 Load: 62.6 t ADT: 139,680

MD 304

Good

Over: GERMAN BRANCH

1.26 MILES E OF MD 481, Queen Anne's, MD

Built 2002 Load: 62.6 t ADT: 3,400

BRUCEVILLE ROAD

Good

Over: MILES CREEK

8 MI SE OF EASTON, Talbot, MD

Built 2005 Load: 62.6 t ADT: 531

RESERVOIR ROAD

Good

Over: MINOR TRIB OF MILL CREEK

0.5 MI E OF MD 222, Cecil, MD

Built 2016 Load: 62.9 t ADT: 874

OLD NEW WINDSOR RD

Good

Over: DICKENSON RUN

0.02 MI S OF NEW WINDSOR, Carroll, MD

Built 1987 Load: 63.0 t ADT: 1,058

CLARKSBURG ROAD

Good

Over: BENNETT CREEK

2.2 MI SW OF JCT SR 80, Montgomery, MD

Built 2011 Load: 63.0 t ADT: 4,123

MD 244

Good

Over: MOLL DYERS RUN

1.21 MILES WEST OF MD 5, St. Mary's, MD

Built 1925 Load: 63.0 t ADT: 2,190

Showing 4,801-4,850 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.