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

WATKINS MILL ROAD

Good

Over: CSX RAILROAD

.28 MI. N. OF MD 117, Montgomery, MD

Built 2006 Load: 50.8 t ADT: 2,136

MD 200 WB

Good

Over: Little Paint Branch

1.23 MI W OF I-95, Prince George's, MD

Built 2011 Load: 50.8 t ADT: 27,734

IS 70

Good

Over: SEMPLE RUN

0.25 MILE WEST OF IS 81, Washington, MD

Built 1966 Load: 50.8 t ADT: 45,040

MD 695 OL

Good

Over: NORTHEAST CREEK

@ MD 695 & MD 702, Baltimore, MD

Built 1972 Load: 50.9 t ADT: 35,900

GLEN COVE ROAD

Good

Over: PEDDLER RUN

1.4 MI NE MD 136, Harford, MD

Built 1930 Load: 50.9 t ADT: 890

FRANKLIN GIBSON RD

Good

Over: TROTTS BRANCH

2.1 MI S OF MD 258, Anne Arundel, MD

Built 1993 Load: 51.2 t ADT: 642

I-895

Good

Over: PATAPSCO RIVER FLATS

I-895 Mileposts 5.3-5.9, Baltimore, MD

Built 1957 Load: 51.2 t ADT: 36,977

ARGONNE DRIVE

Good

Over: HERRING RUN

0.2 MI W HARFORD RD, Baltimore city, MD

Built 1958 Load: 51.2 t ADT: 12,687

BARON STREET

Good

Over: UNNAMED TRIBUTARY

KINGSVIEW SUBDIVISION, Charles, MD

Built 2008 Load: 51.2 t ADT: 230

BIDLE ROAD

Good

Over: CATOCTIN CREEK

0.5 MI SOUTH OF ALT US 40, Frederick, MD

Built 2009 Load: 51.2 t ADT: 650

SIXES ROAD

Good

Over: TOMS CREEK

0.4 MI SOUTH OF GRIMES RD, Frederick, MD

Built 2006 Load: 51.2 t ADT: 60

ALLEN LINTON BLVD

Good

Over: TRIBUTARY OF BALLENGER C

W OF BALLENGER CREEK PIKE, Frederick, MD

Built 2008 Load: 51.2 t ADT: 585

MANDEVILLE ROAD

Good

Over: TRIBUTARY TO LITTLE GUNP

0.3 MILES N OF MD 7, Harford, MD

Built 1985 Load: 51.2 t ADT: 101

KNIGHTS BRIDGE RD

Good

Over: HAMMONDS BRANCH

0.2 MI S OF GORMAN RD, Howard, MD

Built 1992 Load: 51.2 t ADT: 1,230

MD 193 WB

Good

Over: AMTRAK

0.1 MILE EAST OF MD 564, Prince George's, MD

Built 1986 Load: 51.2 t ADT: 16,607

MOUNT OAK ROAD

Good

Over: COLLINGTON BRANCH

1.2 MILES WEST OF US 301, Prince George's, MD

Built 2008 Load: 51.2 t ADT: 12,050

NEW BRIDGE ROAD

Good

Over: LITTLE MILL CREEK

0.38 MI EAST OF MD 371, Worcester, MD

Built 2001 Load: 51.2 t ADT: 125

CHERRIX ROAD

Good

Over: BOXIRON CREEK

2.54 MI SE OF MD 12, Worcester, MD

Built 2003 Load: 51.2 t ADT: 225

LONG GREEN PIKE

Good

Over: LONG GREEN CREEK

0.03 MI S OF LONG GRN RD, Baltimore, MD

Built 2008 Load: 51.7 t ADT: 2,117

MCDONOGH ROAD

Good

Over: HORSEHEAD BRANCH

1.55 MI N. OF RT. 26, Baltimore, MD

Built 1986 Load: 51.7 t ADT: 35,560

CHERRY HILL ROAD

Good

Over: CSX, GWYNN'S FALLS

1.1 MI E. OF MD 140, Baltimore, MD

Built 2011 Load: 51.7 t ADT: 8,084

MD 43

Good

Over: I-95 Ramps G & H

3.2mi N of I-695/I-95, Baltimore, MD

Built 2013 Load: 51.7 t ADT: 31,500

CRELLIN UNDERWOOD

Good

Over: SNOWY CREEK

0.1 MI W INT CRELLIN ST R, Garrett, MD

Built 2009 Load: 51.7 t ADT: 700

MD 200 (ICC) EB

Good

Over: Bonifant Road & NW Branc

2.07 Mi. West of MD650, Montgomery, MD

Built 2010 Load: 51.7 t ADT: 32,786

AMMENDALE ROAD

Good

Over: INDIAN CREEK

1.0 MILE WEST OF US 1, Prince George's, MD

Built 2001 Load: 51.7 t ADT: 23,965

FENNO ROAD

Good

Over: MATAPONI CREEK

.3 MI S ST THOMAS CHUR RD, Prince George's, MD

Built 2011 Load: 51.8 t ADT: 80

SPRECHER ROAD

Good

Over: MARSH RUN

0.68 MI S OF BAKERSVILLE, Washington, MD

Built 1920 Load: 51.8 t ADT: 347

SPRECHER ROAD

Good

Over: MARSH RUN

0.07 MI S OF BAKERSVILLE, Washington, MD

Built 1986 Load: 51.8 t ADT: 380

MD 695

Good

Over: CSX RAILROAD

0.05 MI E OF US 40, Baltimore, MD

Built 1995 Load: 52.2 t ADT: 96,082

DOVER ROAD

Good

Over: CSX RAILROAD

0.1 MI E HANOVER PIKE, Baltimore, MD

Built 2007 Load: 52.2 t ADT: 985

MOUNT ZION ROAD

Good

Over: TRIBUTARY TO PINEY RUN

0.3 MI N OF DOVER ROAD, Baltimore, MD

Built 2007 Load: 52.2 t ADT: 200

KEENEY MILL ROAD

Good

Over: LITTLE FALLS

0.8 MI NE OF MIDDLETOWN R, Baltimore, MD

Built 2005 Load: 52.2 t ADT: 340

PINEY CREEK ROAD

Good

Over: ALLOWAY CREEK

.7 M N OF BOWERS ROAD, Carroll, MD

Built 1900 Load: 52.2 t ADT: 234

OLD TELEGRAPH ROAD

Good

Over: SANDY BRANCH

0.05 MI S OF MIDDLE N RD, Cecil, MD

Built 1965 Load: 52.2 t ADT: 361

CEDAR LANE

Good

Over: MIDDLE PATUXENT RIVER

.02 Mi N of MD 32, Howard, MD

Built 1994 Load: 52.2 t ADT: 17,121

I95 SB-CD

Good

Over: MD200 Ramp I-B

1.6 miles south of MD198, Prince George's, MD

Built 2011 Load: 52.2 t ADT: 9,103

NEW CUT ROAD

Good

Over: UNNAMED TRIBUTARY TO SEV

.7 MI S OF ROUTE 3, Anne Arundel, MD

Built 2020 Load: 52.5 t ADT: 13,571

MONOCACY BOULEVARD

Good

Over: US 15

1 MI N OF MD 26, Frederick, MD

Built 2018 Load: 52.5 t ADT: 5,800

WILDLIFE LOOP ROAD

Good

Over: LITTLE PATUXENT RIVER

NORTH TRACT, Anne Arundel, MD

Built 2004 Load: 52.6 t ADT: 20

MD 100 WBR

Good

Over: STONY RUN

0.5 MI W OF MD 170, Anne Arundel, MD

Built 1995 Load: 52.6 t ADT: 74,302

MEDICAL PARKWAY

Good

Over: COWHIDE BRANCH

ANNE ARUNDEL MEDICAL PARK, Anne Arundel, MD

Built 2002 Load: 52.6 t ADT: 8,484

I-95 SB

Good

Over: CAMPBELL ROAD

0.66 MI S OF MD RTE 43, Anne Arundel, MD

Built 1962 Load: 52.6 t ADT: 101,372

MAYBERRY ROAD

Good

Over: BEAR BRANCH

1.06 MILES N OF MD 140, Carroll, MD

Built 1985 Load: 52.6 t ADT: 762

PINE GROVE ROAD

Good

Over: NEALE SOUND

0.1 MI S MD RTE 254, Charles, MD

Built 1997 Load: 52.6 t ADT: 100

HARMONY CHURCH RD

Good

Over: MILL BROOK

1.4 MILES E OF MD 136, Harford, MD

Built 1933 Load: 52.6 t ADT: 133

MD 175 WBR

Good

Over: SNOWDEN RIVER PARKWAY

0.84 MILE WEST OF MD 108, Howard, MD

Built 2001 Load: 52.6 t ADT: 32,168

NORBECK RD (MD28)

Good

Over: MD 200 (ICC)

4.1 MI WEST OF MD 65, Montgomery, MD

Built 2010 Load: 52.6 t ADT: 18,475

ISLAND CREEK RD

Good

Over: ISLAND CREEK

2.5 MI FROM MD RTE 213, Queen Anne's, MD

Built 2012 Load: 52.6 t ADT: 480

CALVERT ROAD

Good

Over: NORTHEAST CREEK

1.49 MILES N OF MD 274, Cecil, MD

Built 2011 Load: 52.8 t ADT: 1,321

BOCK ROAD

Good

Over: HENSON CREEK & TRAIL

0.13 MI S OF HAVER HIL ST, Prince George's, MD

Built 2011 Load: 52.8 t ADT: 16,701

Showing 4,601-4,650 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.