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)

Counties (24)

Allegany 245 Anne Arundel 389 Baltimore 783 Baltimore city 374 Calvert 33 Caroline 70 Carroll 205 Cecil 193 Charles 94 Dorchester 47 Frederick 486 Garrett 139 Harford 275 Howard 309 Kent 44 Montgomery 515 Prince George's 576 Queen Anne's 88 Somerset 46 St. Mary's 50 Talbot 42 Washington 300 Wicomico 99 Worcester 82

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.

WASHINGTON STREET

Poor

Over: CSXT RAILROAD

0.2 MI W OF CUMBERLAND ST, Allegany, MD

Built 1930 Load: 0.0 t ADT: 110

CUMBERLAND STREET

Poor

Over: CSXT RAILROAD

0.6 MI E OF WASHINGTON ST, Allegany, MD

Built 1929 Load: 0.0 t ADT: 110

MILL STREET

Poor

Over: ROCK RUN

.01 MI S. OF RACE STREET, Cecil, MD

Built 1940 Load: 0.0 t ADT: 100

BACK LANDING ROAD

Poor

Over: HUNTING CREEK

ON CAROLINE COUNTY LINE, Dorchester, MD

Built 1941 Load: 0.0 t

TALBOT AVENUE

Poor

Over: CSXT RAILROAD

0.2 MI E OF MICHIGAN AVE, Montgomery, MD

Built 1918 Load: 0.0 t ADT: 1,430

TAYLOR MILL ROAD

Poor

Over: OLD MILL STREAM BRANCH

0.7 MILE EAST OF MD 213, Queen Anne's, MD

Built 1955 Load: 0.0 t ADT: 100

All Bridges in Maryland

PRICE MANOR WAY

Fair

Over: HAMMOND BRANCH

0.18 MI N OF FULTON RD, Howard, MD

Built 1969 Load: 32.7 t ADT: 100

BIG STONE ROAD

Fair

Over: CYPRESS BRANCH

0.4 MI S OF MD RTE 330, Kent, MD

Built 1962 Load: 32.7 t ADT: 265

HAVILAND MILL ROAD

Fair

Over: HAWLINGS RIVER

0.8 MI EAST OF MD 650, Montgomery, MD

Built 1926 Load: 32.7 t ADT: 1,000

RANNOCH ROAD

Fair

Over: MINNEHAHA BRANCH

0.05 MILES WEST OF MD 614, Montgomery, MD

Built 1920 Load: 32.7 t ADT: 897

BALTIMORE ROAD

Fair

Over: ROCK CREEK

0.5 MI S OF JCT SR 28, Montgomery, MD

Built 1911 Load: 32.7 t ADT: 7,482

STRINGTOWN ROAD

Fair

Over: TRIBUTARY TO LITTLE SENE

0.5 MI NE OF JCT SR 355, Montgomery, MD

Built 2017 Load: 32.7 t ADT: 7,151

WHITE GROUND ROAD

Fair

Over: TRIBUTARY OF SENECA CREE

.4 MI N OF MD 28, Montgomery, MD

Built 1925 Load: 32.7 t ADT: 615

BRIMSTONE ACADEMY

Fair

Over: TRIBUTARY TO JAMES CREEK

0.2 MI. S. OF MD 108, Montgomery, MD

Built 1988 Load: 32.7 t ADT: 539

LOGAN DRIVE

Fair

Over: ROCK RUN

1.0 MILE SOUTH OF MD-190, Montgomery, MD

Built 1972 Load: 32.7 t ADT: 1,657

BEACH DRIVE

Fair

Over: ROCK CREEK TRIBUTARY

0.81 MI N OF JCT SR 547, Montgomery, MD

Built 1965 Load: 32.7 t ADT: 8,611

LITTLE FALLS PARKW

Fair

Over: LITTLE FALLS BRANCH TRIB

0.3 MI SW OF RIVER RD, Montgomery, MD

Built 1980 Load: 32.7 t ADT: 16,691

TOWER OAKS BOULEVA

Fair

Over: CABIN JOHN CREEK

0.1 M N OF MONTROSE ROAD, Montgomery, MD

Built 1975 Load: 32.7 t ADT: 12,480

BRIGGS CHANEY ROAD

Fair

Over: LITTLE PAINT BRANCH

0.60 MI E OF MONT CO LINE, Prince George's, MD

Built 1969 Load: 32.7 t ADT: 14,725

MONTPELIER DRIVE

Fair

Over: DEERFIELD RUN

0.84 MI SW OF MD 197, Prince George's, MD

Built 1971 Load: 32.7 t ADT: 6,970

CALVERTON BOULEVAR

Fair

Over: TRIBUTARY TO LITTLE PAIN

.06MI NE OF BELTSVILLE DR, Prince George's, MD

Built 1986 Load: 32.7 t ADT: 225

AMMENDALE ROAD

Fair

Over: TRIBUTARY TO INDIAN CREE

0.03 MI W OF US 1, Prince George's, MD

Built 1985 Load: 32.7 t ADT: 2,210

METZEROTT ROAD

Fair

Over: TRIB TO NORTHWEST BRANCH

0.09 MILES WEST OF MD 212, Prince George's, MD

Built 1962 Load: 32.7 t ADT: 14,451

CHERRY LANE

Fair

Over: BEAR BRANCH

0.06 MI E OF US 1, Prince George's, MD

Built 1967 Load: 32.7 t ADT: 22,355

RAY ROAD

Fair

Over: TRIBUTARY TO SLIGO CREEK

0.36 MI NW OF MD 212, Prince George's, MD

Built 1961 Load: 32.7 t ADT: 4,540

NORTH ENGLEWOOD DR

Fair

Over: BEAVERDAM CREEK

0.1 MI. W OF JUTEWOOD AVE, Prince George's, MD

Built 1990 Load: 32.7 t ADT: 770

ELLIN ROAD

Fair

Over: TRIB TO BEAVER DAM CREEK

1.5 M SOUTH OF MD 450, Prince George's, MD

Built 1980 Load: 32.7 t ADT: 2,850

RIVERDALE ROAD

Fair

Over: TRIBUTARY TO NORTHEAST B

0.2 M SOUTH OF MD 410, Prince George's, MD

Built 1957 Load: 32.7 t ADT: 5,000

LOTTSFORD ROAD

Fair

Over: UNNAMED STREAM

0.2 MI SOUTH OF MD 202, Prince George's, MD

Built 1986 Load: 32.7 t ADT: 12,422

AUBURN AVENUE

Fair

Over: BRIER DITCH

0.06 MI S OF RIVERDALE RD, Prince George's, MD

Built 1956 Load: 32.7 t ADT: 12,758

CRYDEN WAY

Fair

Over: TRIB OF RITCHIE BRANCH

0.4 MI E OF PARSTON DRIVE, Prince George's, MD

Built 1989 Load: 32.7 t ADT: 1,000

BOHAC LANE

Fair

Over: TRIBUTARY TO MATTAWOMAN

0.6 MI EAST OF MD 210, Prince George's, MD

Built 1997 Load: 32.7 t ADT: 1,340

CHADDS FORD DRIVE

Fair

Over: TRIB TO TIMOTHY BRANCH

0.1 MILES WEST OF US 301, Prince George's, MD

Built 2002 Load: 32.7 t ADT: 2,700

CHADDS FORD DRIVE

Fair

Over: TRIB TO TIMOTHY BRANCH

0.3 MILES WEST OF US 301, Prince George's, MD

Built 2002 Load: 32.7 t ADT: 2,950

FAIRHAVEN AVENUE

Fair

Over: SOUTHWEST BRANCH

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

Built 1968 Load: 32.7 t ADT: 4,300

SURRATTS ROAD

Fair

Over: TRIB OF PISCATAWAY CREEK

0.06 MI W OF MD 5, Prince George's, MD

Built 1955 Load: 32.7 t ADT: 8,171

DISTRICT HEIGHTS P

Fair

Over: SOUTHWEST BRANCH

1 MI E OF COUNTY ROAD, Prince George's, MD

Built 1982 Load: 32.7 t ADT: 1,323

30TH STREET

Fair

Over: TRIBUTARY TO NORTHWEST B

0.03 MI S OF ARUNDEL ROAD, Prince George's, MD

Built 1952 Load: 32.7 t ADT: 248

ARUNDEL ROAD

Fair

Over: TRIBUTARY TO NORTHWEST B

0.03 MI E OF RUSELL AVE, Prince George's, MD

Built 1950 Load: 32.7 t ADT: 302

52ND AVENUE

Fair

Over: TRIBUTARY TO PAINT BRANC

0.1 MILES S. OF CAMPUS DR, Prince George's, MD

Built 1989 Load: 32.7 t ADT: 300

QUEENS CHAPEL ROAD

Fair

Over: TRIB TO NORTHEAST BRANCH

0.36 MI E OF MD 410, Prince George's, MD

Built 1977 Load: 32.7 t ADT: 915

BOYD ROAD

Fair

Over: CAMP SPRING RUN

0.88 M S 0F US RTE 40, Washington, MD

Built 1950 Load: 32.7 t ADT: 1,116

HOPEWELL ROAD

Fair

Over: SEMPLE RUN

0.19 MI S OF IS 70, Washington, MD

Built 1966 Load: 32.7 t ADT: 933

ROXBURY ROAD

Fair

Over: ANTIETAM CREEK

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

Built 1824 Load: 32.7 t ADT: 778

AMOS REEDER ROAD

Fair

Over: DOG CREEK

0.66 MI SE OF MD RTE 67, Washington, MD

Built 1958 Load: 32.7 t ADT: 238

SOUTH HAWBAKER CIR

Fair

Over: TOMS RUN

0.09 MI. W.OF S MILL ST., Washington, MD

Built 1977 Load: 32.7 t ADT: 56

OLD FURNACE ROAD

Fair

Over: NASSAWANGO CREEK

0.95 MI SW OF MD 12, Worcester, MD

Built 1995 Load: 32.7 t ADT: 435

OCEAN PARKWAY NB

Fair

Over: POND

200 NORTH OF MD 589, Worcester, MD

Built 1970 Load: 32.7 t ADT: 5,660

OCEAN PARKWAY SB

Fair

Over: POND

200 NORTH OF MD 589, Worcester, MD

Built 1970 Load: 32.7 t ADT: 5,660

MILFORD MILL EAST

Fair

Over: TRIB OF GWYNNS FALLS

MILFORD MILL METRO, Baltimore, MD

Built 1986 Load: 32.7 t ADT: 300

I-95

Fair

Over: HONEYGO RUN

0.6 MI N OF MD 43, Baltimore, MD

Built 1963 Load: 32.7 t ADT: 172,113

I-895 SB

Fair

Over: I-695

I-895 SB Milepost 3.5, Baltimore, MD

Built 1957 Load: 32.7 t ADT: 8,846

I-95 NB CD

Fair

Over: CSX RR & BERNARD DR

0.71 MI N OF CATON AVE., Baltimore city, MD

Built 1980 Load: 32.7 t ADT: 108,194

IS 95 RAMP E

Fair

Over: HERRING RUN QUAD AVE

EX 60 NB RMP TO MORAV RD, Baltimore city, MD

Built 1974 Load: 32.7 t ADT: 6,819

IS 695 OL

Fair

Over: CURTIS CREEK B&O RR

0.36 MI N OF AA CO LINE, Baltimore city, MD

Built 1975 Load: 32.7 t ADT: 23,169

I-95

Fair

Over: MILL CREEK

MILEPOST M93.6, Cecil, MD

Built 1963 Load: 32.7 t ADT: 89,058

Showing 851-900 of 5,484 bridges

Related

All states → | National rankings → | Understanding conditions → | Retired SD term explained →
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.

Understanding Bridge Conditions

How FHWA rates bridge condition on a 0-9 scale.

Check Your Daily Bridges

How to look up bridge condition data for bridges on your route.

Read our methodology — how this data is sourced, computed, and verified.

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.