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

MD 7

Fair

Over: REDHOUSE CREEK

0.89 MI E OF US 40, Baltimore, MD

Built 1952 Load: 50.8 t ADT: 10,130

IS 695 RAMP 'G'

Fair

Over: JONES FALLS

0.19 MI N OF MD 25, Baltimore, MD

Built 1961 Load: 50.8 t ADT: 17,593

NORTHERN PARKWAY

Fair

Over: HERRING RUN, PERRING PKW

0.4 MI E LOCH RAVEN BLVD, Baltimore city, MD

Built 1957 Load: 50.8 t ADT: 1,171

KEITH AVENUE VIADU

Fair

Over: NEWKIRK ST, OLD KEITH AV

KEITH AVE OVER NEWKIRK ST, Baltimore city, MD

Built 1981 Load: 50.8 t ADT: 24,450

US 1

Fair

Over: BRANCH OF OCTARARO CREEK

.34 MILE SOUTH OF MD 591A, Cecil, MD

Built 1931 Load: 50.8 t ADT: 11,282

BETHEL CHURCH ROAD

Fair

Over: STONEY RUN

0.42 MI S OF BARON ROAD, Cecil, MD

Built 1968 Load: 50.8 t ADT: 1,047

DEAVER RD

Fair

Over: CSX RAILROAD

0.50 MI N OF MARLEY RD, Cecil, MD

Built 1940 Load: 50.8 t ADT: 857

MECHANICS VALLEY R

Fair

Over: AMTRAK

0.24 MI S OF US 40, Cecil, MD

Built 1980 Load: 50.8 t ADT: 8,365

IS 70 EB

Fair

Over: CSX TRANS.

.09 M E OF BILL MOXLEY RD, Frederick, MD

Built 1954 Load: 50.8 t ADT: 67,891

IS 270 NB

Fair

Over: BENNETT CREEK

1.26 MI. N. OF MD 80, Frederick, MD

Built 1950 Load: 50.8 t ADT: 88,192

IS 270 SB

Fair

Over: BENNETT CREEK

1.26 MI. N. OF MD 80, Frederick, MD

Built 1950 Load: 50.8 t ADT: 88,192

IS 70 EB

Fair

Over: TRANS CONT PIPE LINE

0.35 MILE EAST OF US 40, Howard, MD

Built 1968 Load: 50.8 t ADT: 67,990

MD 201

Fair

Over: BRIER DITCH

0.02 MI N OF GOOD LUCK RD, Prince George's, MD

Built 1950 Load: 50.8 t ADT: 35,180

MD 193

Fair

Over: CSXT, METRO, 55TH AVENUE

0.12 MILE EAST OF MD 430, Prince George's, MD

Built 1942 Load: 50.8 t ADT: 49,911

TEMPLE HILL ROAD

Fair

Over: HENSON CREEK

0.04 MI N OF HENDERSON RD, Prince George's, MD

Built 1961 Load: 50.8 t ADT: 6,380

BRYAN POINT ROAD

Fair

Over: ACCOKEEK CREEK

2.66 MILES W OF MD 210, Prince George's, MD

Built 1960 Load: 50.8 t ADT: 771

ARDEN STATION ROAD

Fair

Over: KINGS CREEK

0.3 MI S OF DUBLIN ROAD, Somerset, MD

Built 1982 Load: 50.8 t ADT: 327

POPLAR GROVE ROAD

Fair

Over: LITTLE ANTIETAM CREEK

0.98 MI E OF MD RTE 64, Washington, MD

Built 1910 Load: 50.8 t ADT: 233

MD 258

Fair

Over: ROCKHOLD CREEK

0.62 MILE WEST OF MD 256, Anne Arundel, MD

Built 1963 Load: 51.2 t ADT: 8,882

MD 25

Fair

Over: WESTERN RUN

0.52 MILE SOUTH OF MD 128, Baltimore, MD

Built 1952 Load: 51.2 t ADT: 8,531

IS 695 OL

Fair

Over: GWYNNS FALLS

0.12 MILE NORTH OF IS 795, Baltimore, MD

Built 1961 Load: 51.2 t ADT: 188,352

MD 138

Fair

Over: TRIB TO CHARLES RUN

4.34 MI EAST OF MD 45, Baltimore, MD

Built 1985 Load: 51.2 t ADT: 4,031

SELING AVENUE

Fair

Over: REDHOUSE RUN

0.2 MI N PHILADELPHIA RD, Baltimore, MD

Built 1955 Load: 51.2 t ADT: 6,499

I-83 SB OFF-RAMP

Fair

Over: DRUID LAKE DR WESTBOUND

SB I-83 AT WB DRUID LK DR, Baltimore city, MD

Built 1959 Load: 51.2 t ADT: 26,030

IS 95 RAMP K

Fair

Over: CSX, RACE ST, McCOMAS ST

Milepost M55.3, Baltimore city, MD

Built 1979 Load: 51.2 t ADT: 10,039

MD 194

Fair

Over: PINEY CREEK

.61 MILE SOUTH OF MD 194E, Carroll, MD

Built 1958 Load: 51.2 t ADT: 4,982

MOUNT STREET

Fair

Over: STONE RUN

0.21 MI S OF US 1, Cecil, MD

Built 1960 Load: 51.2 t ADT: 1,162

I-95

Fair

Over: BIG ELK CREEK

1.9 MI S OF MD LINE, Cecil, MD

Built 1963 Load: 51.2 t ADT: 78,625

IS 70 WB

Fair

Over: CSX TRANS.

.09 M E OF BILL MOXLEY RD, Frederick, MD

Built 1954 Load: 51.2 t ADT: 67,891

IS 270

Fair

Over: BRANCH OF BENNETT CREEK

0.21 M S OF BR NO 1017900, Frederick, MD

Built 1951 Load: 51.2 t ADT: 86,751

CHARLES STREET

Fair

Over: WEST BRANCH/WINTERS RUN

0.6 MILES NW OF MD 165, Harford, MD

Built 1965 Load: 51.2 t ADT: 280

CLUB HOLLOW ROAD

Fair

Over: BROAD RUN

0.2 MI W OF EDWARDS FERRY, Montgomery, MD

Built 1930 Load: 51.2 t ADT: 443

BLACK ROCK RD

Fair

Over: GREAT SENECA CREEK

0.7 MI N OF JCT SR 28, Montgomery, MD

Built 1965 Load: 51.2 t ADT: 373

MD 210

Fair

Over: PISCATAWAY CREEK

2.42 MILES N OF MD 373, Prince George's, MD

Built 1946 Load: 51.2 t ADT: 49,700

MD 34

Fair

Over: LITTLE ANTIETAM CREEK

0.19 MILE EAST OF MD 845A, Washington, MD

Built 1958 Load: 51.2 t ADT: 4,951

MUDDY HOLE ROAD

Fair

Over: BROAD CREEK

0.5 MI E JESTERVILLE RD, Wicomico, MD

Built 2004 Load: 51.2 t ADT: 58

IRON RAIL STREET

Fair

Over: JENNINGS RUN

0.02 MI S OF MD 36, Allegany, MD

Built 1935 Load: 51.7 t ADT: 1,224

US 40

Fair

Over: HONEYGO RUN

0.36 MILE EAST OF MD 43, Baltimore, MD

Built 1935 Load: 51.7 t ADT: 39,760

MD 129

Fair

Over: JONES FALLS

0.27 MI S OF MD 130, Baltimore, MD

Built 1957 Load: 51.7 t ADT: 8,700

IS 695

Fair

Over: MTA LIGHT RAIL

0.2 MILE NORTH OF IS 83, Baltimore, MD

Built 1955 Load: 51.7 t ADT: 205,485

ESSEX FARM ROAD

Fair

Over: ROLAND RUN

0.4 MI N OF JOPPA ROAD, Baltimore, MD

Built 1959 Load: 51.7 t ADT: 300

SOUTHERN CROSS DRI

Fair

Over: TRIBUTARY TO GWYNNS FALL

0.03 MI N OF ALTER ST, Baltimore, MD

Built 1955 Load: 51.7 t ADT: 4,436

HAMMERSHIRE ROAD

Fair

Over: ROACHES RUN

HAMMERSHIRE RD 0.11, Baltimore, MD

Built 1984 Load: 51.7 t ADT: 6,330

SPOOKS HILL ROAD

Fair

Over: FROG HOLLOW RUN

1.3 MI W MIDDLETOWN RD, Baltimore city, MD

Built 2001 Load: 51.7 t ADT: 101

CROUSE MILL ROAD

Fair

Over: BIG PIPE CREEK

.15 MI S OF SHARRETT ROAD, Carroll, MD

Built 1976 Load: 51.7 t ADT: 668

PROVIDENCE ROAD

Fair

Over: LITTLE ELK CREEK

0.54 MI W OF MD 213, Cecil, MD

Built 1981 Load: 51.7 t ADT: 639

IRON HILL ROAD

Fair

Over: PERSIMMON RUN

0.52 MI S OF MD 279, Cecil, MD

Built 1978 Load: 51.7 t ADT: 1,389

I-95

Fair

Over: B&O RR

Milepost M104.7, Cecil, MD

Built 1963 Load: 51.7 t ADT: 78,625

IJAMSVILLE ROAD

Fair

Over: BUSH CREEK

1.2 MI N OF MD RTE 80, Frederick, MD

Built 2016 Load: 51.7 t ADT: 3,667

SWANTON HILL ROAD

Fair

Over: CRABTREE CREEK

0.4 M E INT MD RTE 495, Garrett, MD

Built 1976 Load: 51.7 t ADT: 1,058

Showing 2,901-2,950 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.