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

MD 45

Good

Over: BRANCH OF BEAVERDAM RUN

0.71 MI N OF CHURCH LANE, Baltimore, MD

Built 1989 Load: 55.3 t ADT: 27,510

MD 425

Good

Over: BR OF HILL TOP FORK

1.99 MILES SOUTH OF MD 6, Charles, MD

Built 1995 Load: 55.3 t ADT: 2,400

MD 26

Good

Over: MONOCACY RIVER

0.2 MILE WEST OF MD 194, Frederick, MD

Built 1997 Load: 55.3 t ADT: 16,275

LEGEER ROAD

Good

Over: N. BRANCH OF CASSELMAN R

0.67 MI NW OF MD RTE 495, Garrett, MD

Built 2006 Load: 55.3 t ADT: 93

RYAN ROAD

Good

Over: BREAD AND CHEESE BRANCH

1.1 MILES NORTH OF MD 152, Harford, MD

Built 2008 Load: 55.3 t ADT: 1,530

DORSEY RUN ROAD

Good

Over: DEEP RUN

0.5 MI SE OF US 1, Howard, MD

Built 1995 Load: 55.3 t ADT: 50

MD 5

Good

Over: COVENTRY ROAD

1.66 MILES S OF MD 337, Prince George's, MD

Built 1999 Load: 55.3 t ADT: 107,592

US 50

Good

Over: NORTHWOOD DRIVE

0.516 MILE WEST OF US 13, Wicomico, MD

Built 2001 Load: 55.3 t ADT: 18,971

MD 39

Good

Over: YOUGHIOGHENY RIVER

0.36 MILE EAST OF MD 39A, Garrett, MD

Built 2021 Load: 55.4 t ADT: 3,875

UPPER LEVEL ROADWA

Good

Over: ELM ROAD

BWI AIRPORT RAMP A, Anne Arundel, MD

Built 1995 Load: 55.8 t ADT: 14,700

GREENE ROAD

Good

Over: TRIBUTARY TO LITTLE GUNP

0.37 MI NE OF MD RTE 145, Baltimore, MD

Built 1920 Load: 55.8 t ADT: 603

PICNIC WOODS ROAD

Good

Over: MIDDLE CREEK

0.6 MI S OF BIDLE ROAD, Frederick, MD

Built 1974 Load: 55.8 t ADT: 278

MD 175 EBR

Good

Over: SNOWDEN RIVER PARKWAY

0.84 MILE WEST OF MD 108, Howard, MD

Built 2001 Load: 55.8 t ADT: 30,855

MARRIOTTSVILLE ROA

Good

Over: LITTLE PATUXENT RIVER

0.23 MILE NORTH OF IS 70, Howard, MD

Built 1967 Load: 55.8 t ADT: 2,616

MD 28

Good

Over: SENECA CREEK

0.2 MILE EAST OF MD 107, Montgomery, MD

Built 2000 Load: 55.8 t ADT: 11,520

US 13 NB

Good

Over: POCOMOKE RIVER

ON SOMERSET CO LINE, Worcester, MD

Built 1959 Load: 55.8 t ADT: 15,500

ODENTON TOWN CENTE

Good

Over: PICTURE SPRING BRANCH

0.3 MI SOUTH OF MD 32, Anne Arundel, MD

Built 2018 Load: 56.1 t ADT: 5,212

SOUTH DOLFIELD ROA

Good

Over: GWYNNS FALLS

0.3 M NW PAINTERS MILL RD, Baltimore, MD

Built 1965 Load: 56.2 t ADT: 8,948

I-95 NB

Good

Over: CAMPBELL ROAD

0.66 MI S OF MD RTE 43, Baltimore, MD

Built 1962 Load: 56.2 t ADT: 98,960

CHARLES STREET

Good

Over: AMTRAK

0.2 MI N OF MT ROYAL AVE, Baltimore city, MD

Built 2003 Load: 56.2 t ADT: 20,304

LEGION ROAD

Good

Over: WATTS CREEK

0.5 MI SE OF DENTON, Caroline, MD

Built 2011 Load: 56.2 t ADT: 1,099

MD 84

Good

Over: MEADOW BRANCH

1.24 MILE SOUTH OF MD 832, Carroll, MD

Built 2003 Load: 56.2 t ADT: 922

HOOVER MILL ROAD

Good

Over: BIG PIPE CREEK

0.15 MI SW OF EBBVALE RD, Carroll, MD

Built 1984 Load: 56.2 t ADT: 35

MD 140

Good

Over: CATTAIL BRANCH

0.74 MI N OF CARROLL CO, Frederick, MD

Built 1987 Load: 56.2 t ADT: 4,001

MD 136

Good

Over: JAMES RUN

1.6 MILES NORTH OF MD 543, Harford, MD

Built 2006 Load: 56.2 t ADT: 6,361

CLARKSBURG ROAD

Good

Over: LITTLE BENNETT CREEK

1.9 MI N OF MD 355, Montgomery, MD

Built 1998 Load: 56.2 t ADT: 2,934

MD 200 (ICC) EB

Good

Over: Ramp NW

0.6 mi W of Briggs Chaney, Montgomery, MD

Built 2011 Load: 56.2 t ADT: 22,682

MD 19

Good

Over: BEAVERDAM DITCH

0.43 MILE WEST OF MD 313, Queen Anne's, MD

Built 2006 Load: 56.2 t ADT: 1,532

MARKET STREET

Good

Over: WMSRR

0.09 M S OF N MECHANIC ST, Allegany, MD

Built 1928 Load: 56.7 t ADT: 3,445

MD 665

Good

Over: RIVA ROAD

0.63 MILE WEST OF MD 2, Anne Arundel, MD

Built 1991 Load: 56.7 t ADT: 61,602

MCDANIEL ROAD

Good

Over: PINEY BRANCH

0.76 MI SE OF MD RTE 228, Charles, MD

Built 2015 Load: 56.7 t ADT: 542

US 15 SB

Good

Over: TUSCARORA CREEK

1/4 MI. N. OF MONOCACY BL, Frederick, MD

Built 1950 Load: 56.7 t ADT: 45,700

SNAKE LANE

Good

Over: JAMES RUN

0.21 MI E OF MD 136, Harford, MD

Built 2019 Load: 56.7 t ADT: 529

TRIADELPHIA ROAD

Good

Over: MIDDLE PATUXENT RIVER

1.2 MI S OF MD RTE 144, Howard, MD

Built 1986 Load: 56.7 t ADT: 2,474

IS 195 RAMP 'D'

Good

Over: AMTRAK, STONY RUN

0.14 MI S OF IS 195, Anne Arundel, MD

Built 1990 Load: 57.1 t ADT: 5,631

CLARK ROAD

Good

Over: TRIBUTARY TO PINEY RUN

0.5 MI. W. OF RIDGE RD., Anne Arundel, MD

Built 2007 Load: 57.1 t ADT: 1,531

US 1

Good

Over: LITTLE GUNPOWDER FALLS

ON HARFORD CO LINE, Baltimore, MD

Built 2010 Load: 57.1 t ADT: 22,152

MD 702

Good

Over: DEEP CREEK

0.68 MILE EAST OF MD 150, Baltimore, MD

Built 1989 Load: 57.1 t ADT: 27,871

IS 95 NB & SB

Good

Over: DESOTO RD

Milepost M52.7, Baltimore city, MD

Built 1976 Load: 57.1 t ADT: 94,828

MD 30

Good

Over: SHILOH ROAD

2.276 M S OF MD 482, Carroll, MD

Built 2007 Load: 57.1 t ADT: 9,200

MOUNTVILLE ROAD

Good

Over: TUSCARORA CREEK

0.19 MI NE OF ADAMSTOWN R, Frederick, MD

Built 1989 Load: 57.1 t ADT: 3,284

S. COURT STREET

Good

Over: CARROLL CREEK

595' SOUTH OF MD 144, Frederick, MD

Built 1988 Load: 57.1 t ADT: 8,370

MONOCACY BOULEVARD

Good

Over: CARROLL CREEK

0.1 MI S OF E CHURCH ST, Frederick, MD

Built 2012 Load: 57.1 t ADT: 16,392

DAISY ROAD

Good

Over: CATTAIL CREEK

0.5 MI N UNION CHAPEL RD, Howard, MD

Built 2017 Load: 57.1 t ADT: 1,679

WHITES FERRY ROAD

Good

Over: BROAD RUN TRIBUTARY

2 MI W OF JCT SR 109, Montgomery, MD

Built 1998 Load: 57.1 t ADT: 1,999

DAHLGREN ROAD

Good

Over: PAINT BRANCH

GSA at White Oak, MD. I-, Montgomery, MD

Built 2009 Load: 57.1 t ADT: 110

JUMPERS HOLE ROAD

Good

Over: TRIBUTARY TO MAGOTHY RIV

0.56 Mi SOUTH OF JCT RT 2, Anne Arundel, MD

Built 2001 Load: 57.6 t ADT: 11,903

IS 83 NBR

Good

Over: NCR TRAIL & LITTLE FALLS

0.55 MILE SOUTH OF MD 45, Baltimore, MD

Built 2006 Load: 57.6 t ADT: 50,431

MOUNT VISTA ROAD

Good

Over: BROAD RUN

0.35 MI E OF US ROUTE 1, Baltimore, MD

Built 1998 Load: 57.6 t ADT: 1,034

US 15 NBR

Good

Over: TUSCARORA CREEK

1/4 MI. N. OF MONOCACY BL, Frederick, MD

Built 1972 Load: 57.6 t ADT: 45,700

Showing 4,701-4,750 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.