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

I-95

Good

Over: CARSINS RUN

Milepost M85.6, Harford, MD

Built 1963 Load: 36.7 t ADT: 100,386

FOUNDRY STREET

Good

Over: LITTLE PATUXENT RIVER

0.03 MI N OF GORMAN RD, Howard, MD

Built 1975 Load: 36.7 t ADT: 5,511

MD 208

Good

Over: CSX TRANSPORTATION RR

0.18 MILE SOUTH OF US 1, Prince George's, MD

Built 1955 Load: 36.7 t ADT: 10,461

MD 450

Good

Over: CSX TRANSPORTATION

0.16 MILE WEST OF MD 197, Prince George's, MD

Built 2003 Load: 36.7 t ADT: 27,040

MD 200 WB

Good

Over: I-95

0.9 mi S of Van Dusen Rd, Prince George's, MD

Built 2011 Load: 36.7 t ADT: 11,521

MD 242

Good

Over: ST CLEMENTS CREEK

0.52 MILE NORTH OF MD 234, St. Mary's, MD

Built 2000 Load: 36.7 t ADT: 2,371

FROG EYE ROAD

Good

Over: ISRAEL CREEK

0.1M W OF ROHRERSVILLE RD, Washington, MD

Built 2021 Load: 36.8 t ADT: 100

MD 261

Good

Over: FISHING CREEK

0.3 MI S OF MD 260, Calvert, MD

Built 2019 Load: 36.9 t ADT: 18,067

CEDARVILLE ROAD

Good

Over: MATTAWOMAN CREEK

1.14 MI EAST OF US 301, Prince George's, MD

Built 2017 Load: 36.9 t ADT: 4,441

MD 506

Good

Over: BATTLE CREEK

1.77 MI E OF SIXES ROAD, Calvert, MD

Built 2003 Load: 37.2 t ADT: 1,997

MD 30

Good

Over: INDIAN RUN

0.645 M S OF MD 482, Carroll, MD

Built 2007 Load: 37.2 t ADT: 9,200

COOL SPRINGS ROAD

Good

Over: TRIB TO NORTHEAST RIVER

0.5 MI N OF MD 7, Cecil, MD

Built 2007 Load: 37.2 t ADT: 561

MD 335

Good

Over: WALLACE CREEK

0.47 MILE SOUTH OF MD 336, Dorchester, MD

Built 2008 Load: 37.2 t ADT: 871

BILL MOXLEY ROAD

Good

Over: BRANCH OF BUSH CREEK

500' SOUTH OF WESTWIND DR, Frederick, MD

Built 1973 Load: 37.2 t ADT: 1,212

MD 495

Good

Over: N FORK CRABTREE CREEK

3.28 MILES N OF MD 135, Garrett, MD

Built 1987 Load: 37.2 t ADT: 1,652

ALDINO-STEPNEY RD

Good

Over: CARSINS RUN

0.5 MILES N OF MD 22, Harford, MD

Built 2000 Load: 37.2 t ADT: 439

MD 198 EB

Good

Over: LAFAYETTE AVE, CSX TRANS

0.26 MILE WEST OF MD 197, Prince George's, MD

Built 1984 Load: 37.2 t ADT: 21,349

MD 198 WB

Good

Over: LAFAYETTE AVE, CSX TRANS

0.26 MILE WEST OF MD 197, Prince George's, MD

Built 1944 Load: 37.2 t ADT: 20,511

IS 68

Good

Over: LITTLE TONOLOWAY CREEK

1.46 MILES E OF MD 144WB, Washington, MD

Built 1965 Load: 37.2 t ADT: 19,000

CAMPBELL BOULEVARD

Good

Over: TRIBUTARY TO WHITE MARSH

0.5 Miles East of US 40, Baltimore, MD

Built 2015 Load: 37.3 t ADT: 4,393

MD 304

Good

Over: US 301

2.5 MI E OF MD 213, Queen Anne's, MD

Built 2017 Load: 37.3 t ADT: 4,525

MD 35

Good

Over: BRANCH OF WILLS CREEK

0.17 MI S OF PA LINE, Allegany, MD

Built 2008 Load: 37.6 t ADT: 5,001

MD 43

Good

Over: WHITE MARSH RUN

0.197 MILE EAST OF US 40, Baltimore, MD

Built 2004 Load: 37.6 t ADT: 13,012

PAINTERS MILL ROAD

Good

Over: GWYNN FALLS

0.5 MI SW REISTERSTOWN RD, Baltimore, MD

Built 1954 Load: 37.6 t ADT: 22,643

ARTERS MILL ROAD

Good

Over: SILVER RUN

0.47 MI N OF MAYBERRY RD, Carroll, MD

Built 1986 Load: 37.6 t ADT: 245

CARROLLTON ROAD

Good

Over: WEST BRANCH PATAPSCO RIV

0.09 MI W OF DUTROW ROAD, Carroll, MD

Built 1978 Load: 37.6 t ADT: 1,697

GAPLAND ROAD

Good

Over: BROAD RUN

0.85 MI WEST OF MD 383, Frederick, MD

Built 2007 Load: 37.6 t ADT: 960

CHRISTOPHERS CROSS

Good

Over: TRIBUTARY OF TUSCARORA C

WEST OF THOMAS JOHNSON DR, Frederick, MD

Built 2004 Load: 37.6 t ADT: 4,896

WESTERNPORT ROAD

Good

Over: SAVAGE RIVER

0.02 MI W SAVAGE RIVER RD, Garrett, MD

Built 2003 Load: 37.6 t ADT: 138

MD 32

Good

Over: RIV RD,CSX,PATAPSCO RIV

ON CARROLL COUNTY LINE, Howard, MD

Built 2003 Load: 37.6 t ADT: 19,240

STEPHENS ROAD

Good

Over: HAMMOND BRANCH

0.3 M N WHISKEY BOTTOM RD, Howard, MD

Built 2021 Load: 37.6 t ADT: 3,350

SUMMIT AVENUE

Good

Over: CSXT RAILROAD

0.14 MILE NORTH OF MD 547, Montgomery, MD

Built 1996 Load: 37.6 t ADT: 9,746

WASHINGTONIAN BLVD

Good

Over: SAM EIG HIGHWAY

0.5 MI WEST OF I-270, Montgomery, MD

Built 1998 Load: 37.6 t ADT: 9,998

MD 200 (ICC) EB

Good

Over: NORTH BRANCH ROCK CREEK

1.51 MI W OF MD 97, Montgomery, MD

Built 2010 Load: 37.6 t ADT: 31,652

MOLLY BERRY ROAD

Good

Over: ROCK CREEK

0.27 M N OF BDN NAYLOR RD, Prince George's, MD

Built 2005 Load: 37.6 t ADT: 927

MECHANICS VALLEY R

Good

Over: LITTLE NORTHEAST CREEK

0.41 MI N OF US 40, Cecil, MD

Built 2016 Load: 37.9 t ADT: 5,436

MD 2

Good

Over: SAWMILL CREEK

0.09 MI N OF MD 270, Anne Arundel, MD

Built 1937 Load: 38.1 t ADT: 31,511

MD 10 SBR

Good

Over: JUMPERS HOLE ROAD

0.05 MI S OF MD 100, Anne Arundel, MD

Built 1988 Load: 38.1 t ADT: 33,320

MD 150

Good

Over: MIDDLE RIVER

0.27 MI SW OF MD 700, Baltimore, MD

Built 1993 Load: 38.1 t ADT: 38,470

US 40

Good

Over: PATAPSCO RIVER

ON HOWARD CO LINE, Baltimore, MD

Built 1936 Load: 38.1 t ADT: 37,530

TRENTON ROAD

Good

Over: LITTLE PINEY RUN

0.4 MI. W DARK HOLLOW RD, Baltimore, MD

Built 2007 Load: 38.1 t ADT: 722

MD 281

Good

Over: BIG ELK CREEK

0.39 MILE EAST OF MD 7D, Cecil, MD

Built 1960 Load: 38.1 t ADT: 6,681

MD 17

Good

Over: MIDDLE CREEK

1.55 M N OF CROW ROCK RD, Frederick, MD

Built 2005 Load: 38.1 t ADT: 1,951

NEW DESIGN ROAD

Good

Over: BALLENGER CREEK

1.42 MI. SOUTH OF I-70, Frederick, MD

Built 1998 Load: 38.1 t ADT: 19,907

NEW LONDON ROAD

Good

Over: BENS BRANCH

0.2 MILES SW OF MD 75, Frederick, MD

Built 2005 Load: 38.1 t ADT: 1,882

SWALLOW FALLS RD

Good

Over: YOUGHIOGHENY RIVER

0.1 M E INT MAPLE GLADE, Garrett, MD

Built 2011 Load: 38.1 t ADT: 488

MD 152

Good

Over: CSX TRANSPORTATION

0.25 MILE NORTH OF US 40, Harford, MD

Built 1971 Load: 38.1 t ADT: 24,672

TWINSTREAM DRIVE

Good

Over: TRIB TO BONNIE BR

75' W of Bonnie Branch Rd, Howard, MD

Built 2000 Load: 38.1 t ADT: 25

MD 200 (ICC) EB

Good

Over: US 29 & Ramp SE, NB&EB

0.7 mi W of Briggs Chaney, Montgomery, MD

Built 2011 Load: 38.1 t ADT: 21,522

23RD PARKWAY

Good

Over: OXON RUN

0.10 MI SE OF WASH DC LN, Prince George's, MD

Built 2002 Load: 38.1 t ADT: 8,980

Showing 4,151-4,200 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.