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

US 219

Good

Over: SOUTH BRANCH BEAR CREEK

.44 MILE NORTH OF MD 826P, Garrett, MD

Built 1950 Load: 34.9 t ADT: 3,900

MD 382

Good

Over: ROCK BRANCH

0.48 MI S OF TANYARD RD, Prince George's, MD

Built 1999 Load: 34.9 t ADT: 4,500

MD 33

Good

Over: KNAPPS NARROWS

0.91 M W OF BENDERS LANE, Talbot, MD

Built 1998 Load: 34.9 t ADT: 2,201

WETIPQUIN ROAD

Good

Over: WETIPQUIN CREEK

0.5 MI NW DEEP BRANCH RD, Wicomico, MD

Built 2009 Load: 34.9 t ADT: 170

MD 404

Good

Over: HIGHWAY DRAINAGE

0.41 M E OF CONNELLY RD, Talbot, MD

Built 2017 Load: 35.0 t ADT: 19,600

ORLEANS ROAD

Good

Over: FIFTEEN MILE CREEK

0.01 MI. E. OF APPEL RD, Allegany, MD

Built 2019 Load: 35.3 t ADT: 297

MD 36

Good

Over: BRANCH OF GEORGES CREEK

0.21 MILE NORTH OF MD 939, Allegany, MD

Built 1981 Load: 35.4 t ADT: 5,740

MD 43

Good

Over: BIRD RIVER ROAD

0.939 MILE EAST OF US 40, Baltimore, MD

Built 2005 Load: 35.4 t ADT: 13,012

I695E RAMP TO I95N

Good

Over: I95/ I695 (INTERCHANGE)

I695 I95 Interchange, Baltimore, MD

Built 2008 Load: 35.4 t ADT: 21,567

COUDON BOULEVARD

Good

Over: MILL CREEK

2 MI SOUTH OF US 40, Cecil, MD

Built 2003 Load: 35.4 t ADT: 1,890

KNIGHTS BRIDGE RD

Good

Over: HAMMONDS BRANCH

0.1 MI S LOCH LEVEN CT, Howard, MD

Built 1992 Load: 35.4 t ADT: 940

MD 195

Good

Over: SLIGO CR PKWY & SLIGO CR

0.5 MILE NORTH OF MD 410, Montgomery, MD

Built 1932 Load: 35.4 t ADT: 7,500

MD 119

Good

Over: LONG DRAUGHT BRANCH

1.66 MILE NORTH OF MD 124, Montgomery, MD

Built 1990 Load: 35.4 t ADT: 10,344

MD 200 EB

Good

Over: I-95

MD200 Pass over I95, Prince George's, MD

Built 2011 Load: 35.4 t ADT: 8,815

US 1

Good

Over: CSX TRANSPORTATION

0.78 MI N OF IS 895, Baltimore, MD

Built 2021 Load: 35.6 t ADT: 23,100

SOUTH CENTRAL AVEN

Good

Over: PATAPSCO RIVER

BETWEEN LANCASTER & DOCK, Baltimore city, MD

Built 2019 Load: 35.6 t ADT: 3,081

MD 254

Good

Over: NEALE SOUND

1.09 MILE SOUTH OF MD 257, Charles, MD

Built 2019 Load: 35.6 t ADT: 1,900

DAIRY ROAD

Good

Over: TRIBUTARY TO OWL BRANCH

0.45 MI W OF IS 83, Baltimore, MD

Built 1963 Load: 35.8 t ADT: 350

POTEE STREET

Good

Over: PATAPSCO RIVER

0.7 MI S HANOVER ST, Baltimore city, MD

Built 2005 Load: 35.8 t ADT: 16,254

IS 95 RAMP L

Good

Over: RAMP L TO ODONNELL ST

MILEPOST 57.5, Baltimore city, MD

Built 1984 Load: 35.8 t ADT: 12,092

CALVERT ROAD

Good

Over: NORTHEAST CREEK

0.95 MI N OF MD 274, Cecil, MD

Built 1994 Load: 35.8 t ADT: 1,342

GUILFORD ROAD

Good

Over: MIDDLE PATUXENT RIVER

0.04 MI N BERGER RD, Howard, MD

Built 1982 Load: 35.8 t ADT: 8,192

Old Columbia Pike

Good

Over: MD-200 & Ramps SW & EN

0.18 Mi. West of US 29, Montgomery, MD

Built 2011 Load: 35.8 t ADT: 9,633

BOWIE ROAD

Good

Over: BEAR BRANCH

0.2 MI EAST OF US 1 NB, Prince George's, MD

Built 1972 Load: 35.8 t ADT: 14,590

WOODMORE ROAD

Good

Over: TRIBUTARY TO NORTHEAST B

1.43 MILES EAST OF MD193, Prince George's, MD

Built 2007 Load: 35.8 t ADT: 14,565

UPSHUR STREET

Good

Over: STREAM

AT 53RD PLACE, Prince George's, MD

Built 1958 Load: 35.8 t ADT: 1,291

DUTCHMAN'S LANE

Good

Over: WINDMILL BRANCH

850 FEET EAST OF US 50, Talbot, MD

Built 2010 Load: 35.8 t ADT: 5,911

US 13 NB

Good

Over: NORFOLK SOUTHERN RR

0.39 MILE NORTH OF MD 346, Wicomico, MD

Built 1972 Load: 35.8 t ADT: 36,390

POTOMAC HOLLOW ROA

Good

Over: MOORES RUN

0.48 MI S OF MD 935, Allegany, MD

Built 2014 Load: 36.0 t ADT: 268

LOCH RAVEN DRIVE

Good

Over: LOCH RAVEN RESERVOIR

0.9 MI N PROVIDENCE RD, Baltimore, MD

Built 1988 Load: 36.0 t ADT: 4,990

NOBLE ROAD

Good

Over: MARSHYHOPE CREEK

0.3 MI NW OF DELAWARE LIN, Caroline, MD

Built 2016 Load: 36.0 t ADT: 1,428

CEDAR LANE

Good

Over: ROCK CREEK

AT BEACH DRIVE, Montgomery, MD

Built 1959 Load: 36.0 t ADT: 13,424

Duvall Bridge Road

Good

Over: Duvall Mill Millrace

Central/NorthTractBoundry, Anne Arundel, MD

Built 2017 Load: 36.3 t ADT: 5

IS 695 RAMP '8'

Good

Over: LEEDS AVE & HERBERT RUN

0.92 MI N OF I-95, Baltimore, MD

Built 2016 Load: 36.3 t ADT: 3,975

MD 43

Good

Over: WINDLASS RUN

1.587 MILE EAST OF US 40, Baltimore, MD

Built 2005 Load: 36.3 t ADT: 13,012

ENSOR ROAD

Good

Over: THIRD MINE BRANCH

1.85 MILES SW OF MD 439, Baltimore, MD

Built 2016 Load: 36.3 t ADT: 75

MD 287

Good

Over: CHOPTANK RIVER

1.07 MI W OF DELAWARE LN, Caroline, MD

Built 2011 Load: 36.3 t ADT: 2,490

ARRINGTON ROAD

Good

Over: PINEY RUN

AT MARRIOTTSVILLE ROAD, Carroll, MD

Built 1958 Load: 36.3 t ADT: 260

ACCESS ROAD

Good

Over: GEORGE'S RUN

0.1 MILE EAST OF MD 30, Carroll, MD

Built 2009 Load: 36.3 t ADT: 3,415

MD 228 EB

Good

Over: MATTAWOMAN CREEK

PRINCE GEORGE'S CO LINE, Charles, MD

Built 1995 Load: 36.3 t ADT: 39,800

MD 228 WB

Good

Over: MATTAWOMAN CREEK

PRINCE GEORGE'S CO LINE, Charles, MD

Built 1995 Load: 36.3 t ADT: 39,800

MONOCACY BOULEVARD

Good

Over: MONOCACY RIVER

0.4 MILES S OF MD 26, Frederick, MD

Built 2000 Load: 36.3 t ADT: 11,825

MONTEVIDEO ROAD

Good

Over: DRY SENECA CREEK

1.1 M N OF RIVER RD, Montgomery, MD

Built 1910 Load: 36.3 t ADT: 150

SUDLERSVILLE CEMET

Good

Over: UNICORN BRANCH

1.1 MI NORTH OF MD 300, Queen Anne's, MD

Built 1988 Load: 36.3 t ADT: 332

GARRETTS MILL ROAD

Good

Over: ISRAEL CREEK

0.25 MI W OF MD RTE 67, Washington, MD

Built 2019 Load: 36.3 t ADT: 590

MARSHANE ROAD

Good

Over: TRIBUTARY TO NORRIS RUN

0.5 MI E OF NICODEMUS RD, Baltimore, MD

Built 2015 Load: 36.6 t ADT: 200

MD 47

Good

Over: NORTH BRANCH

0.518 MI N OF MD 831F, Allegany, MD

Built 2005 Load: 36.7 t ADT: 2,042

IS 95

Good

Over: WASH. BLVD & GWYNNS FALL

I95 AT WASH BLVD, Baltimore city, MD

Built 1977 Load: 36.7 t ADT: 111,945

POST ROAD

Good

Over: PRINCIPIO CREEK

1.32 MILES S OF MD 274, Cecil, MD

Built 1992 Load: 36.7 t ADT: 1,431

SOUTHAMPTON ROAD

Good

Over: BYNUM RUN

0.6 MILES W OF MD 543, Harford, MD

Built 2010 Load: 36.7 t ADT: 3,876

Showing 4,101-4,150 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.