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

MD200 (ICC) WB

Good

Over: NORTH BRANCH ROCK CREEK

1.51 MI W OF MD 97, Montgomery, MD

Built 2010 Load: 44.0 t ADT: 30,827

MD 97 SB

Good

Over: MD 200 (ICC)

0.59 MI NORTH OF MD 28, Montgomery, MD

Built 2010 Load: 44.0 t ADT: 27,660

MD 200 (ICC) WB

Good

Over: Ramp NW

0.4 mi W of Briggs Chaney, Montgomery, MD

Built 2011 Load: 44.0 t ADT: 21,574

RAMP WS

Good

Over: MD 200/US29, Ramp EB

1 Mi. E of Old Columbia, Montgomery, MD

Built 2011 Load: 44.0 t ADT: 2,397

US 13 NB

Good

Over: LEONARD MILL POND

0.4 MILE SOUTH OF MD 675B, Wicomico, MD

Built 2004 Load: 44.0 t ADT: 38,793

KNIGHTS CORNER ROA

Good

Over: LONG BRANCH

0.87 MI NW OF MD 285, Cecil, MD

Built 2011 Load: 44.1 t ADT: 759

BOHEMIA CHURCH ROA

Good

Over: LITTLE BOHEMIA CREEK

Bohemia Church Road, Cecil, MD

Built 2012 Load: 44.1 t ADT: 580

SNOUFFER SCHOOL RO

Good

Over: CABIN BRANCH

1.3 MI N OF MD124, Montgomery, MD

Built 2020 Load: 44.1 t ADT: 18,315

IS 70 EB

Good

Over: CRYSTAL FALLS DRIVE

1.98 MILES WEST OF MD 66, Washington, MD

Built 2024 Load: 44.1 t ADT: 70,975

MD 10 NBR

Good

Over: JUMPERS HOLE ROAD

0.05 MI S OF MD 100, Anne Arundel, MD

Built 1988 Load: 44.4 t ADT: 33,320

HARMANS ROAD

Good

Over: STONY RUN

0.36 MI. E. OF SEVERN RD, Anne Arundel, MD

Built 2016 Load: 44.4 t ADT: 6,736

GUNPOWDER ROAD

Good

Over: GEORGES RUN

0.1 MI W OF FALLS RD, Baltimore, MD

Built 2010 Load: 44.4 t ADT: 1,000

I-395 RAMP E

Good

Over: MIDDLE BRANCH

Milepost 0.2, Baltimore city, MD

Built 1979 Load: 44.4 t ADT: 15,641

STONE ROAD

Good

Over: SILVER RUN

0.03 MI NW OF MAYBERRY RD, Carroll, MD

Built 1979 Load: 44.4 t ADT: 626

GOOD INTENT ROAD

Good

Over: LITTLE PIPE CREEK

ON FREDERICK CO LINE, Carroll, MD

Built 1977 Load: 44.4 t ADT: 748

POPES CREEK ROAD

Good

Over: POPES CREEK

2 MI W US RTE 301, Charles, MD

Built 1997 Load: 44.4 t ADT: 500

BRIDGEPORT ROAD

Good

Over: CATTAIL BRANCH

0.5 MI SW OF MD 140, Frederick, MD

Built 1978 Load: 44.4 t ADT: 73

MOSER ROAD

Good

Over: HUNTING CREEK

0.5 MI SE OF FREDERICK RD, Frederick, MD

Built 1975 Load: 44.4 t ADT: 1,372

ACCESS ROAD

Good

Over: HUDSON BRANCH

FREDERICK RD & ROGERS AVE, Howard, MD

Built 2003 Load: 44.4 t ADT: 10

IS 370 WBR

Good

Over: CRABBS BRANCH WAY

5.84 MILE WEST OF MD 97, Montgomery, MD

Built 2010 Load: 44.4 t ADT: 78,741

BRINK ROAD

Good

Over: TRIB TO GOSHEN BRANCH

1.0 MILES WEST OF MD 124, Montgomery, MD

Built 2007 Load: 44.4 t ADT: 11,066

LAYHILL RD (MD182)

Good

Over: MD 200 (ICC)

2.79 MI WEST OF MD650, Montgomery, MD

Built 2010 Load: 44.4 t ADT: 14,607

MD 200 (ICC) EB

Good

Over: NORTHWEST BRANCH

2.54 MI WEST OF MD650, Montgomery, MD

Built 2010 Load: 44.4 t ADT: 32,786

MD 200 (ICC) WB

Good

Over: Northwest Branch

2.54 Mi West of MD650, Montgomery, MD

Built 2010 Load: 44.4 t ADT: 32,683

MD 3 NB

Good

Over: PATUXENT RIVER

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

Built 1957 Load: 44.4 t ADT: 75,720

MD 3 SB

Good

Over: PATUXENT RIVER

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

Built 1957 Load: 44.4 t ADT: 75,720

IS 95

Good

Over: SUITLAND PARKWAY (GV 119

0.79 MI. S. OF MD 4, Prince George's, MD

Built 2022 Load: 44.4 t ADT: 193,825

MATTAPONI ROAD

Good

Over: TRIB TO MATTAPONI CREEK

0.64 MI NORTH OF MD 382, Prince George's, MD

Built 2009 Load: 44.4 t ADT: 133

WEST PROSPECT BAY

Good

Over: UNNAMED POND

0.75 MI FROM PERRY CORNER, Queen Anne's, MD

Built 1973 Load: 44.4 t ADT: 1,606

WEST PROSPECT BAY

Good

Over: UNNAMED POND

0.75 MI FROM PERRY CORNER, Queen Anne's, MD

Built 1973 Load: 44.4 t ADT: 1,606

MECHANICSVILLE RD

Good

Over: CHAPTICO CREEK

0.7 MI N OF MD RTE 234, St. Mary's, MD

Built 2011 Load: 44.4 t ADT: 2,876

MILLERS CHURCH RD

Good

Over: ANTIETAM CREEK

0.06 MI W OF MD RTE 60, Washington, MD

Built 1984 Load: 44.4 t ADT: 193

MD 354

Good

Over: ADKINS MILL POND

0.23 MI N OF MD 350, Wicomico, MD

Built 2002 Load: 44.4 t ADT: 1,842

MD 140

Good

Over: N BRANCH OF PATAPSCO RIV

ON CARROLL CO LINE, Baltimore, MD

Built 1946 Load: 44.7 t ADT: 60,433

LITTLE EGYPT RD

Good

Over: CHRISTINA RIVER

0.34 MI N OF MD 273, Cecil, MD

Built 1967 Load: 44.7 t ADT: 2,375

FURNACE ROAD

Good

Over: WEST BRANCH/WINTERS RUN

0.6 MILES E OF MD 152, Harford, MD

Built 1996 Load: 44.7 t ADT: 1,550

GOVERNOR BRIDGE RO

Good

Over: GREEN BRANCH

1.8 MI WEST OF MD 424, Anne Arundel, MD

Built 2003 Load: 44.9 t ADT: 509

GUNPOWDER ROAD

Good

Over: GRAVES RUN

0.8 MI N BECKLEYSVILLE RD, Baltimore city, MD

Built 1990 Load: 44.9 t ADT: 153

SAINT CHARLES PKWY

Good

Over: KERRICK SWAMP

2.1 MI S OF BILLINGSLEY, Charles, MD

Built 2008 Load: 44.9 t ADT: 1,269

KNOLLS PARKWAY

Good

Over: PLEASANT BRANCH

AT MD RT. 75 INTERSECTION, Frederick, MD

Built 1992 Load: 44.9 t ADT: 1,000

DOLLYHYDE ROAD

Good

Over: DOLLYHYDE CREEK

1.0 MI SOUTH OF MD RTE 26, Frederick, MD

Built 1982 Load: 44.9 t ADT: 186

EYLERS VALLEY ROAD

Good

Over: TRIB. OF OWENS CREEK

0.1 MI NE OF MD RTE 550, Frederick, MD

Built 1983 Load: 44.9 t ADT: 295

MD 24

Good

Over: CSX RAILROAD

0.3 MILE SOUTH OF MD 7, Harford, MD

Built 1995 Load: 44.9 t ADT: 20,242

IS 370 EBR

Good

Over: CRABBS BRANCH WAY

5.84 MILE WEST OF MD 355, Montgomery, MD

Built 2010 Load: 44.9 t ADT: 78,741

MD 195

Good

Over: LONG BRANCH

AT LONG BRANCH PARKWAY, Montgomery, MD

Built 2005 Load: 44.9 t ADT: 13,190

MD 200 EB

Good

Over: Little Paint Branch

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

Built 2011 Load: 44.9 t ADT: 26,084

MD 36

Good

Over: KOONTZ RUN

0.05 MILE NORTH OF MD 657, Allegany, MD

Built 2011 Load: 45.0 t ADT: 8,275

MD 54

Good

Over: MOCKINGBIRD CREEK

2.3 MI E OF US 50, Wicomico, MD

Built 2016 Load: 45.0 t ADT: 2,575

IS 68 RAMP FT-2

Good

Over: FIFTEENMILE CREEK

RP 2 IS 68 WB TO US 40SC, Allegany, MD

Built 1990 Load: 45.4 t ADT: 9,992

CHURCH STREET

Good

Over: GEORGES CREEK

0.06 MI W OF MD 936, Allegany, MD

Built 2000 Load: 45.4 t ADT: 461

Showing 4,401-4,450 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.