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 404

Good

Over: BRANCH OF TUCKAHOE CREEK

0.6 M E OF MD 312, Caroline, MD

Built 2017 Load: 40.2 t ADT: 19,600

FIRETOWER ROAD

Good

Over: BASIN RUN

0.19 MI S OF WAYNE ST, Cecil, MD

Built 2012 Load: 40.2 t ADT: 1,219

MONOCACY BOULEVARD

Good

Over: MONOCACY RIVER

0.1 MI SOUTH OF GAS HOUSE, Frederick, MD

Built 2019 Load: 40.2 t ADT: 5,912

MD 36

Good

Over: GEORGES CREEK

1.70 MI N OF MD 935, Allegany, MD

Built 2010 Load: 40.4 t ADT: 7,706

MD 695 OL

Good

Over: AMTRAK

1.12 MILE NORTH OF MD 702, Baltimore, MD

Built 1972 Load: 40.4 t ADT: 74,892

OLD MIDDLETOWN RD

Good

Over: CONE BRANCH

0.25 MI SOUTH OF MD 17, Frederick, MD

Built 1974 Load: 40.4 t ADT: 966

KELBAUGH ROAD

Good

Over: OWENS CREEK

AT FRANKLINVILLE RD INT, Frederick, MD

Built 2001 Load: 40.4 t ADT: 533

MD 152

Good

Over: AMTRAK

2.20 MILES SOUTH OF US 40, Harford, MD

Built 1994 Load: 40.4 t ADT: 102

WHISKEY BOTTOM RD

Good

Over: CSX RR TRACKS

ANNE ARUNDEL COUNTY LINE, Howard, MD

Built 1943 Load: 40.4 t ADT: 10,475

MD 200 (ICC) WB

Good

Over: Shady Grove Road

4.86 MI W. OF MD 97, Montgomery, MD

Built 2010 Load: 40.4 t ADT: 30,827

MD 303

Good

Over: BR OF TUCKAHOE CREEK

0.12 M S OF MILL RIDGE RD, Talbot, MD

Built 2008 Load: 40.4 t ADT: 800

VERNON ROAD

Good

Over: SECOND MINE BRANCH

0.5 M NW WHITE HALL ROAD, Baltimore, MD

Built 2012 Load: 40.5 t ADT: 268

OWINGS MILLS BOULE

Good

Over: SCOTTS LEVEL BRANCH

2.5 MI. S. OF IS 795, Baltimore, MD

Built 2015 Load: 40.5 t ADT: 7,431

MD 273

Good

Over: BIG ELK CREEK

2.14 MI W OF DELAWARE, Cecil, MD

Built 2020 Load: 40.5 t ADT: 8,500

MD 224

Good

Over: BR OF POTOMAC RIVER

1.62 MI S. OF MD 344, Charles, MD

Built 2019 Load: 40.5 t ADT: 325

TROYER ROAD

Good

Over: TRIB / LITTLE DEER CREEK

1.5 MILES NE OF MD 23, Harford, MD

Built 2023 Load: 40.5 t ADT: 335

IS 270 RAMP

Good

Over: UNNAMED TRIB TO SENECA C

1.0 Mile North of MD 124, Montgomery, MD

Built 2020 Load: 40.5 t

RIVER ROAD

Good

Over: C&O CANAL

0.1 miles from North Bran, Allegany, MD

Built 2015 Load: 40.8 t ADT: 100

CARRIG COURT

Good

Over: MAGOTHY BRANCH

1.5 MI W OF MD 2, Anne Arundel, MD

Built 2019 Load: 40.8 t ADT: 345

RUTLAND ROAD

Good

Over: NORTH RIVER

200 FT. FROM MD 450, Anne Arundel, MD

Built 2018 Load: 40.8 t ADT: 2,860

RACE ROAD

Good

Over: PINEY RUN

0.5 MI S OF HANOVER ROAD, Anne Arundel, MD

Built 2002 Load: 40.8 t ADT: 485

THORNTON MILL ROAD

Good

Over: TRIBUTARY TO WESTERN RUN

0.4 MI S OF QUAKER BOTTOM, Baltimore, MD

Built 2010 Load: 40.8 t ADT: 300

PINEY HILL ROAD

Good

Over: TRIBUTARY TO GUNPOWDER F

0.4 MI S OF MONKTON ROAD, Baltimore, MD

Built 2003 Load: 40.8 t ADT: 244

I-95 NORTHBOUND

Good

Over: I-695 STEMMERS RUN

I695 IS95 Interchange, Baltimore, MD

Built 2008 Load: 40.8 t ADT: 52,628

I-895 NB

Good

Over: HERRING RUN

Milepost M13.72, Baltimore city, MD

Built 1957 Load: 40.8 t ADT: 35,344

MD 313

Good

Over: MASON'S BRANCH

ON QUEEN ANNES CO LINE, Caroline, MD

Built 2007 Load: 40.8 t ADT: 2,530

MD 30

Good

Over: TRIB TO EAST BRANCH

1.21 M N OF MD 482, Carroll, MD

Built 2007 Load: 40.8 t ADT: 9,450

MURKLE ROAD

Good

Over: BIG PIPE CREEK

0.41 MILES SOUTH OF MD 97, Carroll, MD

Built 2005 Load: 40.8 t ADT: 377

COLORA ROAD

Good

Over: BASIN RUN

0.52 MI N OF RUSSELL RD, Cecil, MD

Built 2001 Load: 40.8 t ADT: 383

THEODORE ROAD

Good

Over: STONY RUN

0.55 MI W OF MD 274, Cecil, MD

Built 2006 Load: 40.8 t ADT: 2,510

LIBERTY GROVE ROAD

Good

Over: BASIN RUN

0.5 MI N OF DR. JACK RD., Cecil, MD

Built 1929 Load: 40.8 t ADT: 910

HEAPS ROAD

Good

Over: JANE CARRS RUN

0.7 MILES SW OF MD 136, Harford, MD

Built 1996 Load: 40.8 t ADT: 303

MD 28

Good

Over: BUCKHORN RUN

AT INTERSECTION OF MD 182, Montgomery, MD

Built 2001 Load: 40.8 t ADT: 21,671

MD 382

Good

Over: FULL MILL BRANCH

0.42 M S/WHITES LNDNG RD, Prince George's, MD

Built 1999 Load: 40.8 t ADT: 4,500

SPRING ROAD

Good

Over: STREAM

100 FT N. OF 54TH PLACE, Prince George's, MD

Built 1958 Load: 40.8 t ADT: 271

LANDIS ROAD

Good

Over: TRIB. OF LANDIS SPRING

JCT. LONDONTOWNE DR, Washington, MD

Built 2001 Load: 40.8 t ADT: 423

MD 354

Good

Over: ADKINS MILL POND

0.20 MI N OF MD 350, Wicomico, MD

Built 2002 Load: 40.8 t ADT: 1,842

MD 47

Good

Over: NORTH BRANCH

0.23 MI N OF MD 36, Allegany, MD

Built 2016 Load: 41.1 t ADT: 2,300

MARSHANE ROAD

Good

Over: TRIBUTARY TO NORRIS RUN

0.35 MI E OF NICODEMUS RD, Baltimore, MD

Built 2015 Load: 41.1 t ADT: 200

CHURCH ROAD

Good

Over: BLACK BRANCH

1.3 MI. S. OF MD 214, Prince George's, MD

Built 2022 Load: 41.1 t ADT: 10,100

MILFORD MILL ROAD

Good

Over: MTA, CSX RAILROAD

0.4 MI W OF MD RTE 140, Baltimore, MD

Built 1984 Load: 41.3 t ADT: 17,445

I95S TO I695E

Good

Over: I95/I695 INTERCHANGE

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

Built 2008 Load: 41.3 t ADT: 14,826

COLDSPRING LANE

Good

Over: MTA AND JONES FALLS

1.5 MI S NORTHERN PKWY, Baltimore city, MD

Built 1990 Load: 41.3 t ADT: 12,100

MD 231

Good

Over: GILBERT CREEK

1.06 MILES WEST OF MD 5, Charles, MD

Built 1930 Load: 41.3 t ADT: 2,592

LENHART ROAD

Good

Over: FISHING CREEK

0.25 M E OLD FREDERICK RD, Frederick, MD

Built 1982 Load: 41.3 t ADT: 56

MD 390

Good

Over: CSX TRANSPORTATION

0.45 MI N OF MD 410, Montgomery, MD

Built 1958 Load: 41.3 t ADT: 35,062

WHITES FERRY ROAD

Good

Over: BROAD RUN TRIBUTARY

0.3 MI E OF WASCHE ROAD, Montgomery, MD

Built 2014 Load: 41.3 t ADT: 1,907

MD 200 (ICC) EB

Good

Over: Gum Springs & Paint Bran

1.40 Mi East of MD650, Montgomery, MD

Built 2010 Load: 41.3 t ADT: 31,755

NASSAWANGO ROAD

Good

Over: NASSAWANGO CREEK

2.05 MI SW OF MD 12, Worcester, MD

Built 1998 Load: 41.3 t ADT: 900

GORE MILL ROAD

Good

Over: LITTLE FALLS

1.2 MI N MIDDLETOWN RD, Baltimore, MD

Built 2018 Load: 41.5 t ADT: 172

Showing 4,251-4,300 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.