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 FURNACE ROAD

Good

Over: NASSAWANGO CREEK

1.10 MI SW OF MD 12, Worcester, MD

Built 2004 Load: 63.0 t ADT: 450

FIVE MILE BRANCH R

Good

Over: COONFOOT BRANCH

0.76 MI N OF US RTE 113, Worcester, MD

Built 2017 Load: 63.2 t ADT: 128

TOWN CREEK ROAD

Good

Over: TOWN CREEK

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

Built 2001 Load: 63.5 t ADT: 525

ARTIE KEMP ROAD

Good

Over: TOWN BRANCH

0.2 MI WEST OF MD 75, Frederick, MD

Built 1982 Load: 63.5 t ADT: 311

MD 623

Good

Over: BROAD CREEK

2.63 MI S OF PA LINE, Harford, MD

Built 1998 Load: 63.5 t ADT: 1,120

MD 100

Good

Over: OLD MONT. RD & DEEP RUN

0.62 MILE WEST OF MD 103, Howard, MD

Built 1998 Load: 63.5 t ADT: 82,092

I-370 RAMP L(7)

Good

Over: I-370 RAMP M(3)

.23 MI E OF MD 355, Montgomery, MD

Built 2010 Load: 63.5 t ADT: 3,953

GREENBELT STATION

Good

Over: BRANCHVILLE ROAD

.04 MILES N OF MD 193, Prince George's, MD

Built 2008 Load: 63.5 t ADT: 850

IS 68 EBR

Good

Over: STREET ROAD

0.92 M E OF BR NO 0114600, Allegany, MD

Built 1990 Load: 63.9 t ADT: 19,030

BRIDGE STREET

Good

Over: BRADDOCK RUN

0.14 MI NW OF US 40 ALT, Allegany, MD

Built 2009 Load: 63.9 t ADT: 275

ST. FRANCIS DRIVE

Good

Over: TRIBUTARY TO SEVERN RUN

0.19 MI. N. OF MD 174, Anne Arundel, MD

Built 2018 Load: 63.9 t ADT: 669

SCHUCKS PARK ROAD

Good

Over: BROAD RUN

0.2 MI. E. OF SCHUCKS RD, Harford, MD

Built 2012 Load: 63.9 t ADT: 306

MD 500

Good

Over: NORTHWEST BRANCH

0.10 MILE EAST OF MD 501, Prince George's, MD

Built 1934 Load: 63.9 t ADT: 41,631

HARFORD CREAMERY R

Good

Over: TRIB / LITTLE DEER CREEK

0.5 MILES N OF LEMON RD, Harford, MD

Built 2015 Load: 64.2 t ADT: 500

Kerby Hill Road

Good

Over: Carey Branch

1.5 MILE SOUTH OF I-495, Prince George's, MD

Built 2021 Load: 64.2 t ADT: 6,525

MD 36

Good

Over: JENNINGS RUN

0.12 MI N OF MD 35, Allegany, MD

Built 1957 Load: 64.4 t ADT: 8,670

PHOENIX ROAD

Good

Over: TRIBUTARY TO GUNPOWDER F

0.5 MI. NE OF SR 45, Baltimore, MD

Built 2002 Load: 64.4 t ADT: 1,607

JASPER RILEY ROAD

Good

Over: TROUT RUN

0.9 MILES EAST OF US 219, Garrett, MD

Built 2018 Load: 64.4 t ADT: 26

PARK CENTRAL RD

Good

Over: STILL CREEK

1.2 MI FROM GREENBELT RD, Prince George's, MD

Built 2022 Load: 64.4 t ADT: 30

IS 68 WB

Good

Over: RICE ROAD

1.71 MILES EAST OF MD 903, Washington, MD

Built 1985 Load: 64.4 t ADT: 19,950

FIRST STREET

Good

Over: ROCK CREEK TRIBUTARY

0.07 MILE WEST OF MD28, Montgomery, MD

Built 2017 Load: 64.8 t ADT: 3,496

I-695 RAMP to I95S

Good

Over: STEMMERS RUN

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

Built 2008 Load: 64.9 t ADT: 23,331

THURSTON ROAD

Good

Over: LITTLE BENNETT CREEK

1.8 MI S OF PETERS RD, Frederick, MD

Built 1986 Load: 64.9 t ADT: 478

SCHUSTER ROAD

Good

Over: WEST BRANCH/ WINTERS RUN

0.2 MILES E OF MD 146, Harford, MD

Built 1999 Load: 64.9 t ADT: 4,200

IS 83 RAMP '6'

Good

Over: BRANCH OF BEAVERDAM RUN

RP FR PADONIA TO I 83 SB, Baltimore, MD

Built 1983 Load: 65.3 t ADT: 10,000

WARD ROAD

Good

Over: TRIBUTARY TO HALL CREEK

1.10 MI EAST OF MD 4, Calvert, MD

Built 1997 Load: 65.3 t ADT: 924

RED TOAD ROAD

Good

Over: PRINCIPIO CREEK

0.06 MI N OF PRINCIPIO RD, Cecil, MD

Built 2008 Load: 65.3 t ADT: 1,060

MD 144FA

Good

Over: CARROLL CREEK

0.02 M E OF BENTZ ST, Frederick, MD

Built 1994 Load: 65.3 t ADT: 6,869

RIDGE ROAD

Good

Over: BROAD CREEK

2.2 MILES SW OF MD 136, Harford, MD

Built 1979 Load: 65.3 t ADT: 169

WHITES FERRY ROAD

Good

Over: BROAD RUN TRIBUTARY

1 MI W OF ELGIN ROAD, Montgomery, MD

Built 2014 Load: 65.3 t ADT: 1,836

NORBECK ROAD

Good

Over: NURSERY RUN

0.98 MILES EAST OF MD 182, Montgomery, MD

Built 2002 Load: 65.3 t ADT: 18,960

Ramp WN to US29 NB

Good

Over: Ramp NB to Briggs Chaney

0.8 Mi S Briggs Chaney Rd, Montgomery, MD

Built 2011 Load: 65.3 t ADT: 309

MD 481

Good

Over: BLOCKSTON BRANCH

2.55 MILES S OF MD 304, Queen Anne's, MD

Built 2002 Load: 65.3 t ADT: 862

FORT AVE

Good

Over: CSX

FORT AVENUE OVER CSX RR, Baltimore city, MD

Built 2012 Load: 65.4 t ADT: 12,359

WATKINS MILL ROAD

Good

Over: GREAT SENECA CREEK

.6 MI SE OF BLUNT ROAD, Montgomery, MD

Built 1990 Load: 65.7 t ADT: 12,760

THIRD LEVEL ENTRAN

Good

Over: HOURLY PARKING GARAGE

BWI HOURLY PARK GARAGE, Anne Arundel, MD

Built 1995 Load: 65.8 t ADT: 1,105

MD 213

Good

Over: CSX TRANSPORTATION

0.16 MILE NORTH OF IS 95, Cecil, MD

Built 1991 Load: 65.8 t ADT: 8,241

MD 140

Good

Over: MONOCACY RIVER

ON CARROLL CO LINE, Frederick, MD

Built 2013 Load: 65.8 t ADT: 4,801

GAS HOUSE PIKE

Good

Over: BENS BRANCH

0.5 MI WEST OF MD 75, Frederick, MD

Built 1982 Load: 65.8 t ADT: 2,353

RUFFS MILL ROAD

Good

Over: TRIB / THOMAS RUN

0.8 MILES SE OF US 1, Harford, MD

Built 2011 Load: 65.8 t ADT: 1,007

TURKEY POINT ROAD

Good

Over: SELBY BAY

0.40 MI E OF MD 214, Anne Arundel, MD

Built 1994 Load: 66.2 t ADT: 1,123

BUSINESS PARK DRIV

Good

Over: ROLAND RUN

0.4 MI S OF TIMONIUM RD, Baltimore, MD

Built 1992 Load: 66.2 t ADT: 5,625

HARDESTY ROAD

Good

Over: FISHING CREEK

0.44 MI S OF KAPPOPOS WAY, Calvert, MD

Built 1998 Load: 66.2 t ADT: 600

W COVE POINT ROAD

Good

Over: WATERFORD BRANCH

0.1 MI. W. OF MD 2/MD 4, Calvert, MD

Built 2014 Load: 66.2 t ADT: 500

OLD BOHN ROAD

Good

Over: WOODVILLE BRANCH

AT MATTIE HAINES RD INTER, Frederick, MD

Built 1982 Load: 66.2 t ADT: 150

IS 370

Good

Over: OAKMONT AVENUE

0.37 MILE EAST OF MD 355, Montgomery, MD

Built 1989 Load: 66.2 t ADT: 78,741

RED LION BRANCH RD

Good

Over: RED LION BRANCH

.84 MI. NE OF MD 290, Queen Anne's, MD

Built 1984 Load: 66.2 t ADT: 1,320

BERWYN ROAD

Good

Over: INDIAN CREEK

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

Built 1933 Load: 66.4 t ADT: 450

FAWN GROVE ROAD

Good

Over: DEER CREEK

0.8 MILES N OF MD 165, Harford, MD

Built 1978 Load: 66.7 t ADT: 978

JOHN MCADAM DR

Good

Over: DORSEY BRANCH

800 FT S OF MD 175, Howard, MD

Built 2000 Load: 66.7 t ADT: 30

Showing 4,851-4,900 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.