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 100 EBR

Good

Over: AMTRAK, SERVICE ROAD

0.4 MI W OF MD 170, Anne Arundel, MD

Built 1995 Load: 45.4 t ADT: 35,421

MD 100 WBR

Good

Over: AMTRAK, SERVICE ROAD

0.4 MI W OF MD 170, Anne Arundel, MD

Built 1995 Load: 45.4 t ADT: 35,421

POT SPRING ROAD

Good

Over: KELLY BRANCH

0.2 MI N. OF GIRDWOOD RD, Baltimore, MD

Built 1980 Load: 45.4 t ADT: 11,227

I95N RAMP TO I695W

Good

Over: I-695, I-95 INTERCHANGE

I-95/I-695 Interchange, Baltimore, MD

Built 2008 Load: 45.4 t ADT: 22,062

BEL ALTON NEWTOWN

Good

Over: CLARK RUN

0.8 MI NE MUDD RD, Charles, MD

Built 1998 Load: 45.4 t ADT: 1,760

BRIAN F THOMAS DRI

Good

Over: CHERRY GLADE RUN

0.05 MILES EAST OF US 219, Garrett, MD

Built 2016 Load: 45.4 t ADT: 597

ROBINSON MILL ROAD

Good

Over: BROAD CREEK

0.5 MILES E OF MD 136, Harford, MD

Built 2020 Load: 45.4 t ADT: 73

NORTH AVENUE

Good

Over: BYNUM RUN

0.2 MILES EAST OF MD 924, Harford, MD

Built 2011 Load: 45.4 t ADT: 714

MD 200 (ICC) EB

Good

Over: Shady Grove Road

4.86 MI W. OF MD 97, Montgomery, MD

Built 2010 Load: 45.4 t ADT: 31,652

Ramp WN to US29 NB

Good

Over: MD 200 Ramp NW

0.4 mi S Briggs Chaney Rd, Montgomery, MD

Built 2011 Load: 45.4 t ADT: 309

MD 223

Good

Over: PISCATAWAY CREEK

2.40 MILES SOUTH OF MD 4, Prince George's, MD

Built 2012 Load: 45.4 t ADT: 20,322

RIVER ROAD

Good

Over: BIG ANNEMESSEX RIVER

1.5 MI N OF KINGSTON ROAD, Somerset, MD

Built 1988 Load: 45.4 t ADT: 484

MD 34

Good

Over: BR OF LITTLE ANTIETAM CK

0.94 MILE EAST OF MD 845A, Washington, MD

Built 1956 Load: 45.4 t ADT: 4,951

GEORGES CREEK ROAD

Good

Over: GEORGES RUN

1.3 MI E FALLS RD, Baltimore city, MD

Built 2011 Load: 45.7 t ADT: 180

BLAKE RD

Good

Over: LITTLE ELK CREEK

0.46 MI E OF LI ELK CK RD, Cecil, MD

Built 2010 Load: 45.7 t ADT: 417

DICUS MILL ROAD

Good

Over: SEVERN RUN

1.3 M E OF GAMBRILLS RD, Anne Arundel, MD

Built 2012 Load: 45.8 t ADT: 1,301

DORSEY ROAD

Good

Over: PINEY RUN

0.3 MI E OF MD ROUTE 295, Anne Arundel, MD

Built 2006 Load: 45.8 t ADT: 1,418

DAYSVILLE ROAD

Good

Over: CABBAGE RUN

0.8 MI EAST OF MD 194, Frederick, MD

Built 1975 Load: 45.8 t ADT: 1,619

MD 159

Good

Over: CRANBERRY RUN

0.22 MILE SOUTH OF US 40, Harford, MD

Built 2008 Load: 45.8 t ADT: 4,980

HOLLY OAK CIRCLE

Good

Over: GRAYS RUN

0.1 MILES N OF MD 7, Harford, MD

Built 1999 Load: 45.8 t ADT: 173

MD 100

Good

Over: SNOWDEN RIVER PARKWAY

0.86 MILE WEST OF MD 103, Howard, MD

Built 1998 Load: 45.8 t ADT: 82,092

MD 100

Good

Over: SNOWDEN RIVER PARKWAY

0.86 MILE WEST OF MD 103, Howard, MD

Built 1997 Load: 45.8 t ADT: 82,092

ROGERS AVENUE

Good

Over: SUCKER BRANCH

0.4 MI N OF US RTE 40, Howard, MD

Built 1988 Load: 45.8 t ADT: 9,270

MD 119

Good

Over: GUNNERS BR,CSXT RR

.5 MI S OF MIDDLEBROOK RD, Montgomery, MD

Built 1987 Load: 45.8 t ADT: 6,955

WAYNE AVENUE

Good

Over: SLIGO CREEK

AT MANCHESTER AVENUE, Montgomery, MD

Built 1960 Load: 45.8 t ADT: 19,450

PARKWOOD STREET

Good

Over: TRIBUTARY TO BEAVERDAM C

0.02 MI E OF GRAMBY ST, Prince George's, MD

Built 1995 Load: 45.8 t ADT: 2,024

54TH PLACE

Good

Over: STREAM

50 FT S. OF SPRING ST., Prince George's, MD

Built 1958 Load: 45.8 t ADT: 332

MD 355

Good

Over: CSX TRANS.

2.11 MILES SOUTH OF MD 85, Frederick, MD

Built 2020 Load: 46.0 t ADT: 13,000

MD 63

Good

Over: ST JAMES RUN

AT N/S RAILROAD, Washington, MD

Built 2017 Load: 46.0 t ADT: 650

CEDAR KNOLL LANE

Good

Over: ELK LICK RUN

100 FEET SOUTH OF MD 144, Allegany, MD

Built 1966 Load: 46.3 t ADT: 50

CHRISTIE ROAD

Good

Over: EVITTS CREEK

1.04 MILES S OF MD 144AN, Allegany, MD

Built 1975 Load: 46.3 t ADT: 1,464

MARLYN AVENUE

Good

Over: DEEP CREEK

1.1 MI SE OF EASTERN BLVD, Baltimore, MD

Built 2008 Load: 46.3 t ADT: 10,248

WEST OSTEND STREET

Good

Over: MARC, CSX

0.15 MI. NW. OF WASH. BLV, Baltimore city, MD

Built 1993 Load: 46.3 t ADT: 8,239

HOFFMAN MILL ROAD

Good

Over: TRIBUTARY EAST OF BRANCH

.91 MI W - HOUCKSVILLE RD, Carroll, MD

Built 1974 Load: 46.3 t ADT: 750

MD 4 EBR

Good

Over: PATUXENT RIVER

ON ANNE ARUNDEL CO LINE, Prince George's, MD

Built 1959 Load: 46.3 t ADT: 57,061

IS 70 WB

Good

Over: CSX TRANS.

0.18 MILE EAST OF MD 65, Washington, MD

Built 1968 Load: 46.3 t ADT: 60,800

US 13 SB

Good

Over: NORFOLK SOUTHERN RR

0.39 MILE NORTH OF MD 346, Wicomico, MD

Built 1972 Load: 46.3 t ADT: 36,390

MASON ROAD

Good

Over: PEA VINE RUN

0.06 MI N OF ZEMBOWER RD, Allegany, MD

Built 2004 Load: 46.7 t ADT: 1,275

IS 795 RAMP 'E'

Good

Over: GWYNNS FALLS

0.15 MI N OF IS 695, Baltimore, MD

Built 1984 Load: 46.7 t ADT: 32,012

GARLAND ROAD

Good

Over: GARLAND LAKE

0.5 MILES NORTH OF MD 317, Caroline, MD

Built 2017 Load: 46.7 t ADT: 1,452

FORD ROAD

Good

Over: CLIFFORD BRANCH

0.6 MI W OPPOSSUMTOWN PIK, Frederick, MD

Built 1980 Load: 46.7 t ADT: 414

FISH HATCHERY ROAD

Good

Over: BEAR CREEK

0.1 MI W OF PUD MILLER RD, Garrett, MD

Built 2007 Load: 46.7 t ADT: 65

BROKEN LAND PKWY

Good

Over: LITTLE PATUXENT RIVER

0.125 MI S OF MD RTE 32, Howard, MD

Built 1986 Load: 46.7 t ADT: 21,288

WATTS BRANCH PARKW

Good

Over: WATTS BRANCH

0.2 MI S OF HURLEY AVE, Montgomery, MD

Built 1970 Load: 46.7 t ADT: 3,704

MD 140

Good

Over: FLAT RUN

0.4 MI E OF EMMITSBURG, Frederick, MD

Built 2019 Load: 47.0 t ADT: 9,011

MONROE ST RAMP EB

Good

Over: SERVICE ROAD

1.0 MI S OF RTE 1, Baltimore city, MD

Built 2006 Load: 47.2 t ADT: 15,441

BUCK LANTZ ROAD

Good

Over: OWENS CREEK

AT FOXVLLE DEERFLD RD INT, Frederick, MD

Built 1982 Load: 47.2 t ADT: 141

RAVEN ROCK PARK RD

Good

Over: OWENS CREEK

AT FOXVLLE DEERFLD RD INT, Frederick, MD

Built 1981 Load: 47.2 t ADT: 57

FISHERS HOLLOW RD

Good

Over: LITTLE CATOCTIN CREEK

AT HARMONY RD INT, Frederick, MD

Built 1983 Load: 47.2 t ADT: 337

FISH HATCHERY ROAD

Good

Over: BEAR CREEK

0.06 MI S RABBIT HOLLOW, Garrett, MD

Built 2006 Load: 47.2 t ADT: 65

Showing 4,451-4,500 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.