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 221A NE RAMP 2

Good

Over: TRIB TO SOUTHWEST BRANCH

0.07 MILE SOUTH OF IS 95, Prince George's, MD

Built 2004 Load: 83.0 t ADT: 8,391

COMMO ROAD

Good

Over: PISCATAWAY CREEK

.74 MI E FRANK TIPPETT RD, Prince George's, MD

Built 1935 Load: 83.3 t ADT: 2,920

CHILLUM ROAD

Good

Over: TRIBUTARY TO NORTHWEST B

0.35 MI S OF MD 500, Prince George's, MD

Built 2020 Load: 83.9 t ADT: 8,951

GARIS SHOP ROAD

Good

Over: ANTIETAM CREEK

0.64 M SW OF ALT US RT 40, Washington, MD

Built 1839 Load: 84.4 t ADT: 1,698

MD 7

Good

Over: WINTERS RUN

0.33 M S OF EDGEWOOD ROAD, Harford, MD

Built 1991 Load: 84.8 t ADT: 7,300

MASON ROAD

Good

Over: ROCKY GAP RUN

0.23 MI S OF ROCKY GAP RD, Allegany, MD

Built 2017 Load: 84.9 t ADT: 205

EAST OAK RIDGE DRI

Good

Over: ANTIETAM CREEK

0.09 MI W OF ALT US RT 40, Washington, MD

Built 1833 Load: 85.1 t ADT: 12,292

MOLASSES ROAD

Good

Over: BEAVER DAM CREEK

AT DOTTERER RD INTERSECTN, Frederick, MD

Built 1982 Load: 85.3 t ADT: 141

FOX RUN DRIVE

Good

Over: TRIB TO PISCATAWAY CREEK

0.2 MI N OF SURRATTS ROAD, Prince George's, MD

Built 1988 Load: 85.3 t ADT: 3,885

BILLINGSLEY RD EBR

Good

Over: PINEY BRANCH

2.5 MI E OF ST CHAR. PKWY, Charles, MD

Built 1994 Load: 85.7 t ADT: 7,023

MT HOREB ROAD

Good

Over: LITTLE DEER CREEK

1.2 MILES NW OF MD 165, Harford, MD

Built 1955 Load: 85.7 t ADT: 751

MONTROSE ROAD

Good

Over: OLD FARM CREEK

0.5 MI. W. OF JEFFERSON, Montgomery, MD

Built 2008 Load: 85.7 t ADT: 66,690

HONEYLOCUST DRIVE

Good

Over: TOWSERS BRANCH

0.25 MI W OF MD 3, Anne Arundel, MD

Built 2018 Load: 85.9 t ADT: 1,128

IS 68 RAMP 6

Good

Over: PRATT HOLLOW

RP FR I 68 EB TO US 40SC, Allegany, MD

Built 1990 Load: 86.2 t ADT: 9,992

SECOND LEVEL ENTRA

Good

Over: HOURLY PARKING GARAGE

BWI HOURLY PARK GARAGE, Anne Arundel, MD

Built 1991 Load: 86.2 t ADT: 1,105

MD 222

Good

Over: ROCK RUN

0.84 MILE NORTH OF MD 276, Cecil, MD

Built 2016 Load: 86.2 t ADT: 2,700

HARMONY ROAD

Good

Over: LITTLE CATOCTIN CREEK

0.25 MI SOUTH OF US 40, Frederick, MD

Built 1999 Load: 86.2 t ADT: 1,296

CAP STINE ROAD

Good

Over: RENN BRANCH

0.7 MI SE OF US RTE 340, Frederick, MD

Built 1985 Load: 86.2 t ADT: 1,359

CLOPPER ROAD

Good

Over: ANTIETAM CREEK

0.95 MI S OF MD RTE 60, Washington, MD

Built 2005 Load: 86.2 t ADT: 229

MD 10 SBR

Good

Over: MARLEY CREEK

0.45 MI S OF MD 648E, Anne Arundel, MD

Built 1988 Load: 86.6 t ADT: 43,170

BUCHER JOHN ROAD

Good

Over: LITTLE PIPE CREEK

0.02 MI W OF UNION BRIDGE, Carroll, MD

Built 1960 Load: 86.6 t ADT: 1,159

THEODORE ROAD

Good

Over: PRINCIPIO CREEK

0.65 MI E OF BELVIDERE RD, Cecil, MD

Built 2006 Load: 87.1 t ADT: 2,708

HOFFMAN SEACHRIST

Good

Over: CABBAGE RUN

100' N OF BENNIE DUNCAN R, Frederick, MD

Built 1985 Load: 87.5 t ADT: 202

MD 24

Good

Over: MD 924

0.53 MI NORTH OF I-95, Harford, MD

Built 2011 Load: 87.5 t ADT: 72,060

SHEPPARD LANE

Good

Over: MIDDLE PATUXENT RIVER

0.6 MI N OF MD RTE 108, Howard, MD

Built 1997 Load: 87.5 t ADT: 3,027

HARWOOD ROAD

Good

Over: STOCKETTS RUN

2.0 MI WEST OF MD ROUTE 2, Anne Arundel, MD

Built 2023 Load: 87.8 t ADT: 708

IS 68 RAMP 5

Good

Over: PRATT HOLLOW

RP FR US 40SC TO I 68 EB, Allegany, MD

Built 1990 Load: 88.0 t ADT: 9,992

ST. MARKS ROAD

Good

Over: TRIB. OF BROAD RUN

1.0 MI S OF MD RTE 383, Frederick, MD

Built 1982 Load: 88.4 t ADT: 196

MD 6

Good

Over: PERSIMMON CREEK

2.44 MILES W OF MD 235, St. Mary's, MD

Built 2021 Load: 88.5 t ADT: 4,200

IS 70 EB

Good

Over: BLACK ROCK RD

0.78 MILE EAST OF MD 66, Washington, MD

Built 2009 Load: 89.1 t ADT: 58,600

IS 70 WB

Good

Over: BLACK ROCK RD

0.78 MILE EAST OF MD 66, Washington, MD

Built 2009 Load: 89.1 t ADT: 58,600

I-395 RAMP EE

Good

Over: STADIUM LOT

Milepost M3.4, Baltimore city, MD

Built 1980 Load: 89.3 t ADT: 2,256

STINNETT ROAD

Good

Over: PLUM POINT CREEK

1.3 MI SOUTH OF MD 263, Calvert, MD

Built 1995 Load: 89.3 t ADT: 1,360

US 50 EB

Good

Over: WICOMICO RIVER

0.591 M E OF JERSEY ROAD, Wicomico, MD

Built 2001 Load: 89.3 t ADT: 18,971

BALLENGER CREEK PI

Good

Over: DOUBS BRANCH

0.1 MI SW OF DOUBS ROAD, Frederick, MD

Built 1975 Load: 89.8 t ADT: 1,065

STONEYBROOK DRIVE

Good

Over: CSXT RAILROAD

0.1 MILE WEST OF MD 192, Montgomery, MD

Built 2001 Load: 89.8 t ADT: 6,654

MD 200

Good

Over: Edmonston Creek

MD 200 0.7 mi E of I-95, Prince George's, MD

Built 2010 Load: 89.8 t ADT: 5,950

BEAR CREEK DRIVE

Good

Over: BEAR CABIN BRANCH

0.2 MI N OF BERNADETTE DR, Harford, MD

Built 1980 Load: 90.2 t ADT: 1,111

MD 382

Good

Over: CHARLES BRANCH

1.26 MILES S OF US 301, Prince George's, MD

Built 2024 Load: 90.4 t ADT: 6,700

MD 36

Good

Over: TRIB TO JENNINGS RUN

1.87 MI N OF MD 638, Allegany, MD

Built 2020 Load: 90.7 t ADT: 2,724

MD 364

Good

Over: DIVIDING CREEK

ON WORCESTER CO LINE, Somerset, MD

Built 2019 Load: 92.3 t ADT: 975

MD 32 Northbound

Good

Over: Terrapin Branch

0.82 MI. SOUTH OF MD 144, Howard, MD

Built 2020 Load: 93.0 t ADT: 29,475

MD 32 Southbound

Good

Over: Terrapin Branch

0.82 MI. SOUTH OF MD 144, Howard, MD

Built 2020 Load: 93.0 t ADT: 29,475

MD 32 Northbound

Good

Over: Middle Patuxent River

1.18 MILE SOUTH OF MD 144, Howard, MD

Built 2020 Load: 93.0 t ADT: 29,475

MD 32 Southbound

Good

Over: Middle Patuxent River

1.18 MILE SOUTH OF MD144A, Howard, MD

Built 2020 Load: 93.0 t ADT: 29,475

NELSON ROAD

Good

Over: CAREYTOWN BRANCH

0.15 MI S OF SWAMP ROAD, Worcester, MD

Built 2015 Load: 94.0 t ADT: 59

US 219

Good

Over: CHERRY CREEK

2.7 MILES S OF MD 826D, Garrett, MD

Built 2014 Load: 95.3 t ADT: 2,390

OLD LEGISLATIVE RD

Good

Over: WINEBRENNER RUN

0.14 MI S OF SHAFT-MIS RD, Allegany, MD

Built 2020 Load: 96.9 t ADT: 937

WATERVALE ROAD

Good

Over: WINTERS RUN

1.7 MILES N OF MD 152, Harford, MD

Built 2016 Load: 96.9 t ADT: 2,479

TIVOLI LAKE BOULEV

Good

Over: BEL PRE CREEK

1.7 MILE EAST OF MD 97, Montgomery, MD

Built 2017 Load: 96.9 t ADT: 310

Showing 5,051-5,100 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.