State profile · Below median Poor share

Maryland bridge safety

Condition ratings, load ratings, and Poor-condition data for every public highway bridge in Maryland, based on the FHWA National Bridge Inventory.

5,527
Public bridges
25.9%
Good condition
4.3%
Poor condition

Data updated May 2026

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 whose lowest applicable component is rated 0-4

-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 - Poor-condition 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 by Poor-condition share (lower share = better)

States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Maryland on the same metric.

CT

Connecticut

3.95% top marginal rate
Structure
Progressive
Burden @ $100K
$4,277

TN

Tennessee

3.97% top marginal rate
Structure
Progressive
Burden @ $100K
$20,426
Selected

MD

Maryland

4.27% top marginal rate
Structure
Progressive
Burden @ $100K
$5,527

CO

Colorado

4.32% top marginal rate
Structure
Progressive
Burden @ $100K
$8,965

OR

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 the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.

All Bridges in Maryland

BOLLINGER ROAD

Good

Over: STONY BRANCH

1.7 MILES NORTH OF MD 76, Frederick, MD

Built 1982 Load: 67.1 t ADT: 72

MT. TABOR ROAD

Good

Over: GRINDSTONE RUN

AT MONUMENT RD INTERSECTN, Frederick, MD

Built 1982 Load: 67.1 t ADT: 304

STULLTOWN ROAD

Good

Over: ANDOVER BRANCH

2.8 MI. NE JCT MD 300, Queen Anne's, MD

Built 1988 Load: 67.1 t ADT: 221

MD 151B (Wharf Roa

Good

Over: Warehouse Road and Trade

0.4 Mi. S. of MD 158, Baltimore, MD

Built 2022 Load: 67.4 t ADT: 12,750

VALLEY ROAD

Good

Over: BOOZE CREEK

40 FT E OF FALLEN OAK RD, Montgomery, MD

Built 1964 Load: 67.4 t ADT: 216

GUN ROAD

Good

Over: PATAPSCO RIVER

PATAPSCO VALLEY ST PARK, Baltimore, MD

Built 1975 Load: 67.6 t ADT: 110

MACTON ROAD

Good

Over: TRIB / BROAD CREEK

0.31 MI SW OF MD 136, Harford, MD

Built 2014 Load: 67.6 t ADT: 212

OAKINGTON ROAD

Good

Over: GASHEYS CREEK

0.8 MILES S OF MD 132, Harford, MD

Built 1993 Load: 67.6 t ADT: 1,330

MD 25

Good

Over: GEORGES RUN

1.36 MI N OF MD 137, Baltimore, MD

Built 2015 Load: 67.7 t ADT: 4,400

GOLD MINE ROAD

Good

Over: HAWLINGS RIVER

0.4 MILES WEST OF MD 650, Montgomery, MD

Built 2019 Load: 67.7 t ADT: 2,792

MD 496

Good

Over: BIG PIPE CREEK

3.52 MILEI WEST OF MD 30, Carroll, MD

Built 2018 Load: 68.0 t ADT: 3,975

MARRIOTTSVILLE RD

Good

Over: SOUTH BR PATAPSCO RIVER

ON HOWARD COUNTY LINE, Carroll, MD

Built 1986 Load: 68.0 t ADT: 12,255

MD 224

Good

Over: BR OF THORNE GUT

5.35 MILES NORTH OF MD 6, Charles, MD

Built 2018 Load: 68.0 t ADT: 50

MD 224

Good

Over: THORNE GUT

4.54 MILES NORTH OF MD 6, Charles, MD

Built 2018 Load: 68.0 t ADT: 71

SUGARLOAF PARKWAY

Good

Over: TRIB OF PETER PAN RUN

S OF BUSH CREEK DRIVE, Frederick, MD

Built 1999 Load: 68.0 t ADT: 1,080

MONUMENT ROAD

Good

Over: GRINDSTONE RUN

1.55 MI WEST OF MD 17, Frederick, MD

Built 1977 Load: 68.0 t ADT: 311

BONNIE BRANCH RD

Good

Over: BONNIE BRANCH

0.2 MI E OF COLLEGE AVE, Howard, MD

Built 2006 Load: 68.0 t ADT: 1,000

MUNCASTER ROAD

Good

Over: ROCK CREEK

1 MILE NORTH OF MD 115, Montgomery, MD

Built 2006 Load: 68.0 t ADT: 7,803

RACE TRACK ROAD

Good

Over: W B & A TRAIL

.3 MI NE OF BOWIE R TRACK, Prince George's, MD

Built 2000 Load: 68.0 t ADT: 11,670

CROMWELL VALLEY PA

Good

Over: MINEBANK RUN

0.3 MI. NW CROMWELL BR RD, Baltimore, MD

Built 2005 Load: 68.5 t ADT: 212

CARRS MILL ROAD

Good

Over: WINTERS RUN

1.4 MILES N OF MD 152, Harford, MD

Built 1991 Load: 68.5 t ADT: 8,285

MONTROSE ROAD

Good

Over: RAMP TO I-270

0.1 MI W OF I-270, Montgomery, MD

Built 1990 Load: 68.5 t ADT: 22,375

SHETLANDS LANE

Good

Over: TRIBUTARY TO MARLEY CREE

0.80 MI S OF MD 100, Anne Arundel, MD

Built 1975 Load: 68.9 t ADT: 2,819

BENSON MILL ROAD

Good

Over: BLACKROCK RUN

0.3 MI E OF MD 25, Baltimore, MD

Built 2001 Load: 68.9 t ADT: 4,229

OWINGS MILLS BOULE

Good

Over: TRIBUTARY TO GWYNNS FALL

0.06 MI S OF GWYNBRK AVE, Baltimore, MD

Built 2003 Load: 68.9 t ADT: 29,024

MD-43

Good

Over: I-95 Ramps E & F

3.2 MI N OF I-695/I-95INT, Baltimore, MD

Built 2012 Load: 68.9 t ADT: 31,500

EARLS ROAD

Good

Over: AMTRAK RAILROAD

0.16 MI N OF MD RTE 150, Baltimore, MD

Built 2000 Load: 69.4 t ADT: 4,370

MD 17

Good

Over: MIDDLE CREEK

0.02 M S OF SPRUCE RUN RD, Frederick, MD

Built 1994 Load: 69.4 t ADT: 1,951

EAST STREET

Good

Over: CARROLL CREEK

JUST S. OF SOUTH STREET, Frederick, MD

Built 1999 Load: 69.4 t ADT: 15,334

BYRD ROAD

Good

Over: LITTLE ANNEMESSEX RIVER

0.2 MILES WEST OF MD 358, Somerset, MD

Built 1984 Load: 69.4 t ADT: 493

WEST CHAPEL ROAD

Good

Over: SWAN CREEK

0.6 MILES S OF MD 156, Harford, MD

Built 1930 Load: 69.7 t ADT: 365

FIFTH LEVEL ENTRAN

Good

Over: HOURLY PARKING GARAGE

BWI HOURLY PARK GARAGE, Anne Arundel, MD

Built 1996 Load: 69.8 t ADT: 1,105

HARRIS MILL ROAD

Good

Over: EBAUGHS CREEK

0.15 MI N OF BOND ROAD, Baltimore, MD

Built 2011 Load: 69.8 t ADT: 370

DURHAM ROAD

Good

Over: WEST BRANCH and WINTERS

0.01 MI E OF CHARLES ST, Harford, MD

Built 1995 Load: 69.8 t ADT: 1,770

GUILFORD ROAD

Good

Over: CSX TRANSPORTATION

ON ANNE ARUNDEL CO LINE, Howard, MD

Built 2008 Load: 69.8 t ADT: 13,485

MARYLAND 36

Good

Over: MOORES RUN ROAD

0.30 MILE NORTH OF MD 935, Allegany, MD

Built 1975 Load: 70.3 t ADT: 5,740

GV714 (MD 32)

Good

Over: CANINE ROAD

ENTRANCE TO N.S.A., Anne Arundel, MD

Built 2005 Load: 70.3 t ADT: 42,132

FOURTH LEVEL ENTRA

Good

Over: HOURLY PARKING GARAGE

BWI HOURLY PARK GARAGE, Anne Arundel, MD

Built 1991 Load: 70.3 t ADT: 1,104

FOURTH LEVEL EXIT

Good

Over: HOURLY PARKING GARAGE

BWI AIRPORT PARK GARAGE, Anne Arundel, MD

Built 1991 Load: 70.3 t ADT: 1,104

HORSESHOE ROAD

Good

Over: STONE RUN

0.91 MI N OF US 1, Cecil, MD

Built 2000 Load: 70.3 t ADT: 1,369

SUNDOWN ROAD

Good

Over: HAWLINGS RIVER

2.0 MILES EAST OF MD 108, Montgomery, MD

Built 1996 Load: 70.3 t ADT: 6,900

BRENTLAND ROAD

Good

Over: LITTLE CATOCTIN CREEK

0.25 MI EAST OF MD RTE 17, Frederick, MD

Built 1982 Load: 70.7 t ADT: 44

MD 32 EB

Good

Over: LITTLE PATUXENT RIVER

0.23 M S OF SHAKER DRIVE, Howard, MD

Built 1981 Load: 70.7 t ADT: 81,712

GREAT STAR DRIVE

Good

Over: CRICKETT CREEK

1.0 Mile SE of MD 108, Howard, MD

Built 1997 Load: 70.7 t ADT: 6,583

HACKETT CORNER RD

Good

Over: UNICORN BRANCH

0.8 MI. E. OF MD313, Queen Anne's, MD

Built 1987 Load: 70.7 t ADT: 663

SHAFT ROAD

Good

Over: GEORGES CREEK

0.13 MI W OF MD 936, Allegany, MD

Built 1940 Load: 71.0 t ADT: 432

IS 695 OL RAMP '1'

Good

Over: LEEDS AVE & HERBERT RUN

0.77 MILE NORTH OF IS 95, Baltimore, MD

Built 2004 Load: 71.2 t ADT: 5,696

STAUFFER ROAD

Good

Over: ISRAEL CREEK

1 MI E OF MD RTE 194, Frederick, MD

Built 1998 Load: 71.2 t ADT: 517

ELLICOTT CENTER DR

Good

Over: UNNAMED STREAM

400 FT NW OF ROGERS AVE, Howard, MD

Built 2003 Load: 71.2 t ADT: 1,814

CLARKSBURG ROAD

Good

Over: BENNETT CREEK TRIBUTARY

0.2 MI W BETHESDA CH RD, Montgomery, MD

Built 2003 Load: 71.2 t ADT: 4,123

Showing 4,901-4,950 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.

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). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.