State profile · Below median Poor share

Maryland bridge safety

According to the Federal Highway Administration's 2024 National Bridge Inventory, condition ratings, load ratings, and Poor-condition shares for every public highway bridge in Maryland.

5,484
Public bridges
32.3%
Good condition
4.6%
Poor condition

Maryland holds 5,484 public highway bridges (#34 of 52 by inventory) with a 4.56% Poor share (#38 of 52 by Poor share).

That is 4.6% of the state's inventory, against an average of 7.5% across the 54 states and territories with Poor-rated bridges on file, which places it 15 of 54 ordered from the lowest Poor share upward. A bridge is rated Poor when its weakest applicable component scores 4 or below on the inspecting agency's 0-9 scale, so the category is a maintenance and funding signal rather than a closure order or a live crossing-safety verdict.

Inventory: FHWA NBI 2024 · last ETL August 2026

Total Bridges

5,484

Public highway bridges in Maryland

Good Condition

32.3%

1,771 bridges rated 7-9

-17.7pp vs 50% benchmark

Poor Condition

4.6%

250 bridges whose lowest applicable component is rated 0-4

-3.0pp vs national avg 7.5%

Maryland vs national bridge condition

Maryland - Good condition share 32.3%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

Maryland - Poor-condition share 15.2%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.5%.

Maryland in the national condition pattern

Each point is a state or territory in the FHWA NBI; the highlighted point is this profile.

Inventory size and Poor-condition share are different measures: Maryland has 5,484 bridges and a 4.6% Poor-condition share in the 2024 NBI, rank #15 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold. Scatter plot of 54 data points. 0%10%20%30%40% 0k20k40k60k Public bridges in inventory (thousands) Poor-condition share (%) MD, Public bridges in inventory (thousands): 5.5k · Poor-condition share (%): 4.56%AL, Public bridges in inventory (thousands): 16.2k · Poor-condition share (%): 3.35%AK, Public bridges in inventory (thousands): 1.7k · Poor-condition share (%): 7.89%AZ, Public bridges in inventory (thousands): 8.6k · Poor-condition share (%): 1.15%AR, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 5.43%CA, Public bridges in inventory (thousands): 25.8k · Poor-condition share (%): 5.91%CO, Public bridges in inventory (thousands): 9k · Poor-condition share (%): 4.82%CT, Public bridges in inventory (thousands): 4.4k · Poor-condition share (%): 4.72%DE, Public bridges in inventory (thousands): 0.9k · Poor-condition share (%): 1.26%DC, Public bridges in inventory (thousands): 0.3k · Poor-condition share (%): 1.95%FL, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 2.79%GA, Public bridges in inventory (thousands): 15.1k · Poor-condition share (%): 1.59%GU, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 12.77%HI, Public bridges in inventory (thousands): 1.2k · Poor-condition share (%): 6.53%ID, Public bridges in inventory (thousands): 4.6k · Poor-condition share (%): 4.9%IL, Public bridges in inventory (thousands): 26.9k · Poor-condition share (%): 9.35%IN, Public bridges in inventory (thousands): 19.5k · Poor-condition share (%): 5.22%IA, Public bridges in inventory (thousands): 23.7k · Poor-condition share (%): 19.16%KS, Public bridges in inventory (thousands): 24.9k · Poor-condition share (%): 5.26%KY, Public bridges in inventory (thousands): 14.5k · Poor-condition share (%): 7.37%LA, Public bridges in inventory (thousands): 12.7k · Poor-condition share (%): 11.48%ME, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 15.41%MA, Public bridges in inventory (thousands): 5.3k · Poor-condition share (%): 8.88%MI, Public bridges in inventory (thousands): 11.4k · Poor-condition share (%): 11.27%MN, Public bridges in inventory (thousands): 13.5k · Poor-condition share (%): 4.44%MS, Public bridges in inventory (thousands): 16.7k · Poor-condition share (%): 6.03%MO, Public bridges in inventory (thousands): 24.6k · Poor-condition share (%): 8.95%MT, Public bridges in inventory (thousands): 5.2k · Poor-condition share (%): 6.81%NE, Public bridges in inventory (thousands): 15.4k · Poor-condition share (%): 7.9%NV, Public bridges in inventory (thousands): 2.1k · Poor-condition share (%): 1.14%NH, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 7.51%NJ, Public bridges in inventory (thousands): 6.8k · Poor-condition share (%): 6.01%NM, Public bridges in inventory (thousands): 4k · Poor-condition share (%): 4.51%NY, Public bridges in inventory (thousands): 17.6k · Poor-condition share (%): 9.43%NC, Public bridges in inventory (thousands): 19.2k · Poor-condition share (%): 6.76%ND, Public bridges in inventory (thousands): 4.3k · Poor-condition share (%): 10.98%OH, Public bridges in inventory (thousands): 26.7k · Poor-condition share (%): 4.74%OK, Public bridges in inventory (thousands): 22.9k · Poor-condition share (%): 7.7%OR, Public bridges in inventory (thousands): 8.3k · Poor-condition share (%): 4.61%PA, Public bridges in inventory (thousands): 23.3k · Poor-condition share (%): 12.58%PR, Public bridges in inventory (thousands): 2.4k · Poor-condition share (%): 13.92%RI, Public bridges in inventory (thousands): 0.8k · Poor-condition share (%): 15.2%SC, Public bridges in inventory (thousands): 9.5k · Poor-condition share (%): 6.17%SD, Public bridges in inventory (thousands): 5.9k · Poor-condition share (%): 16.36%TN, Public bridges in inventory (thousands): 20.4k · Poor-condition share (%): 4.41%TX, Public bridges in inventory (thousands): 56.7k · Poor-condition share (%): 1.23%UT, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 2.91%VT, Public bridges in inventory (thousands): 2.9k · Poor-condition share (%): 2.9%VI, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 29.17%VA, Public bridges in inventory (thousands): 14.1k · Poor-condition share (%): 3.39%WA, Public bridges in inventory (thousands): 8.5k · Poor-condition share (%): 5.45%WV, Public bridges in inventory (thousands): 7.3k · Poor-condition share (%): 18.64%WI, Public bridges in inventory (thousands): 14.4k · Poor-condition share (%): 6.52%WY, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 6.51%
Inventory size and Poor-condition share are different measures: Maryland has 5,484 bridges and a 4.6% Poor-condition share in the 2024 NBI, rank #15 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold.

Maryland vs all states by public bridge inventory

Where this state's FHWA NBI public-highway bridge count sits among every state and territory on PlainBridges

5,484 34th of 54 higher than 20 of 54 states

States and territories, banded by public bridge inventory size

Each bar is a band; taller bars hold more states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source FHWA National Bridge Inventory · 2024

Read the rank neighborhood for Maryland

The highlighted point is Maryland: 5,484 bridges and 4.56% in Poor condition, rank #15 of 54 jurisdictions ordered from the lowest share upward. The five jurisdictions immediately above and below Maryland on that same Poor-share ordering:

  • Minnesota: 13,532 bridges · 4.44% Poor
  • New Mexico: 4,035 bridges · 4.51% Poor
  • Maryland: 5,484 bridges · 4.56% Poor
  • Oregon: 8,305 bridges · 4.61% Poor
  • Connecticut: 4,365 bridges · 4.72% Poor

The full national sortable table lives on the rankings page.

Material families in Maryland

Exclusive FHWA material families across all 5,484 bridges in this state; continuous variants fold into the parent family. Orthogonal to the Poor-share scatter above.

Who maintains Maryland’s inventory

State agency holds 53.4% of the 5,484 public highway bridges filed under Maryland in the 2024 NBI, the agency-of-record split for this state, not a condition verdict.

When Maryland’s bridges were built

Pre-1950 construction accounts for 15.9% of the 5,484 bridges with a recorded original year in Maryland. Era bands are orthogonal to the Poor-share ranking above.

Condition Distribution

Maryland32.3%63.1%GoodFairPoor
Bridge inventory deck-condition mix - Maryland (FHWA NBI)

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.

MN

Minnesota

4.44% top marginal rate
Structure
Progressive
Burden @ $100K
$13,532

NM

New Mexico

4.51% top marginal rate
Structure
Progressive
Burden @ $100K
$4,035
Selected

MD

Maryland

4.56% top marginal rate
Structure
Progressive
Burden @ $100K
$5,484

OR

Oregon

4.61% top marginal rate
Structure
Progressive
Burden @ $100K
$8,305

CT

Connecticut

4.72% top marginal rate
Structure
Progressive
Burden @ $100K
$4,365

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

BROWN STATION RD

Good

Over: TRIB TO FEDERAL SPRG BR

0.5 MI N OF MARLBORO PIKE, Prince George's, MD

Built 1993 Load: 54.0 t ADT: 10,054

I-895 SB

Good

Over: MOORES RUN

I-895 SB Milepost 14.54, Baltimore city, MD

Built 2009 Load: 54.0 t ADT: 78,180

NOTLEY ROAD

Good

Over: MD 200 (ICC)

0.71 MI WEST OF MD 650, Montgomery, MD

Built 2010 Load: 54.0 t ADT: 4,997

WATERVIEW AVE

Good

Over: MD 295 BW PARKWAY

0.6 MI S OF I-95, Baltimore city, MD

Built 2023 Load: 54.1 t ADT: 19,170

FENNO ROAD

Good

Over: MATAPONI CREEK

0.29 M S OF ST THMSCH RD, Prince George's, MD

Built 2011 Load: 54.1 t ADT: 80

MD RTE 43 EB

Good

Over: I-95

0.57 MI W OF MD RTE 7, Baltimore, MD

Built 2013 Load: 54.1 t ADT: 31,500

MD 272 SB

Good

Over: BR OF NORTH EAST RIVER

1.03 MILE SOUTH OF US 40, Cecil, MD

Built 1987 Load: 54.4 t ADT: 7,412

MD 355

Good

Over: IS 70

0.1 MILE NORTH OF MD 85, Frederick, MD

Built 2008 Load: 54.4 t ADT: 19,242

IS 95 RAMP E(7)

Good

Over: MD 414 (OXON HILL ROAD)

0.18 M N OF BR NO 1622100, Prince George's, MD

Built 2004 Load: 54.4 t ADT: 13,360

BIG FALLS ROAD

Good

Over: BIG GUNPOWDER FALLS

0.36 MI S. OF HICKS ROAD, Baltimore, MD

Built 2008 Load: 54.4 t ADT: 1,204

DR. JACK ROAD

Good

Over: OCTORARO CREEK

.05 MI. N OF BASIN RUN RD, Cecil, MD

Built 1989 Load: 54.4 t ADT: 2,044

HAMILTON ROAD

Good

Over: TRIBUTARY TO MATTAWOMAN

TIMBERBROOK DR INTERSECT, Charles, MD

Built 2012 Load: 54.4 t ADT: 1,116

CHESTERVILLE BRIDG

Good

Over: MILLS BRANCH

0.4 MI W OF US 301, Kent, MD

Built 1997 Load: 54.4 t ADT: 266

INWOOD AVENUE

Good

Over: TRIBUTARY TO SLIGO CREEK

AT FOLK STREET, Montgomery, MD

Built 1956 Load: 54.4 t ADT: 2,972

GROFF ROAD

Good

Over: UNICORN BRANCH

0.1 MI FROM MD RTE 313, Queen Anne's, MD

Built 2007 Load: 54.4 t ADT: 91

KINGSTON ROAD

Good

Over: KINGS CREEK

5 MI NE OF EASTON, Talbot, MD

Built 2007 Load: 54.4 t ADT: 280

NICODEMUS MILL RD

Good

Over: DOG CREEK

0.08 MI N OF DOGSTREET RD, Washington, MD

Built 1996 Load: 54.4 t ADT: 294

MD 36

Good

Over: JENNINGS RUN

1.38 MI S OF MD 47, Allegany, MD

Built 1995 Load: 54.9 t ADT: 2,290

MD 424 NBR

Good

Over: IS 595

0.81 MI N OF MD 909, Anne Arundel, MD

Built 1994 Load: 54.9 t ADT: 13,992

MD 424 SBR

Good

Over: IS 595

0.81 MI N OF MD 909, Anne Arundel, MD

Built 1994 Load: 54.9 t ADT: 13,992

MD 7B

Good

Over: MILL CREEK

0.13 MILE SOUTH OF MD 327, Cecil, MD

Built 2006 Load: 54.9 t ADT: 1,700

MD 234

Good

Over: ST CLEMENTS CREEK

0.28 MILE EAST OF MD 242, St. Mary's, MD

Built 1950 Load: 54.9 t ADT: 9,701

IS 68 WB

Good

Over: SIDELING HILL CREEK

ON ALLEGANY CO LINE, Washington, MD

Built 1982 Load: 54.9 t ADT: 19,950

BOLLINGER ROAD

Good

Over: NORTH MIDDLE RUN

1 MI S OF WESTMNSTR PIKE, Carroll, MD

Built 1974 Load: 54.9 t ADT: 1,836

JEB STUART TRAIL

Good

Over: TRIB TO LITTLE MONOCACY

0.18 MI WEST OF MD RTE 28, Montgomery, MD

Built 2010 Load: 54.9 t ADT: 20

MD 22

Good

Over: I-95

Milepost M84.9, Harford, MD

Built 2003 Load: 54.9 t ADT: 28,033

PHILLIPS MILL ROAD

Good

Over: EAST BRANCH/ WINTERS RUN

0.6 MILES W OF MD 23, Harford, MD

Built 2020 Load: 55.1 t ADT: 434

IS 68 EBR

Good

Over: DRY RIDGE ROAD

2.6 MI W OLD CUMBERL RD, Allegany, MD

Built 1990 Load: 55.3 t ADT: 18,551

IS 68 WBR

Good

Over: DRY RIDGE ROAD

2.6 MI W OLD CUMBERL RD, Allegany, MD

Built 1990 Load: 55.3 t ADT: 18,551

MD 436

Good

Over: WEEMS CREEK

0.35 MILE SOUTH OF IS 595, Anne Arundel, MD

Built 1997 Load: 55.3 t ADT: 5,181

MD 695

Good

Over: US 40(PULASKI HWY)

0.25 MILE EAST OF MD 7, Baltimore, MD

Built 1996 Load: 55.3 t ADT: 96,082

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

BROKEN LAND PKWY

Good

Over: US 29 RAMP D(1)

0.13 MI S OF US 29, Howard, MD

Built 1992 Load: 55.3 t ADT: 32,730

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

PEA VINE RUN ROAD

Good

Over: PEA VINE RUN

0.50 MI W OF MD 807, Allegany, MD

Built 2009 Load: 55.3 t ADT: 186

NEW SCHOOL ROAD

Good

Over: DUTCH HOLLOW RUN

0.4 MI. N. OF MD 36, Allegany, MD

Built 1954 Load: 55.3 t ADT: 306

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 39

Good

Over: YOUGHIOGHENY RIVER

0.36 MILE EAST OF MD 39A, Garrett, MD

Built 2021 Load: 55.4 t ADT: 3,875

MD 139

Good

Over: IS 695

0.38 MI N OF JOPPA RD, Baltimore, MD

Built 2012 Load: 55.8 t ADT: 56,500

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

MD 28

Good

Over: SENECA CREEK

0.2 MILE EAST OF MD 107, Montgomery, MD

Built 2000 Load: 55.8 t ADT: 11,520

IS 95/495 O.L. LOC

Good

Over: RAMP Q(1)

2.0 MILES WEST OF MD 210, Prince George's, MD

Built 2005 Load: 55.8 t ADT: 146,744

IS 95/IS 495 RMP 6

Good

Over: IS 95/IS 495 RAMP 5

2.97 MILE NORTH OF MD 414, Prince George's, MD

Built 2008 Load: 55.8 t ADT: 16,037

US 13 NB

Good

Over: POCOMOKE RIVER

ON SOMERSET CO LINE, Worcester, MD

Built 1959 Load: 55.8 t ADT: 15,500

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

Showing 4,501-4,550 of 5,484 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.

What to do with this

Use Maryland's inventory picture to drill to a county or a specific span.

  • Browse counties in Maryland and open the highest-Poor shares first. County list
  • See where this state sits among peers on Poor-condition share. State rankings
  • Compare this state with another jurisdiction on the same measures. State compare

NBI condition ratings are inventory snapshots, not live crossing-safety verdicts.

Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Maryland Good/Fair/Poor shares and county rollups on this page are computed from the same NBI extract as the national boards; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.