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

US 40

Fair

Over: CONOCOCHEAGUE CREEK

1.92 MILES EAST OF MD 57, Washington, MD

Built 1936 Load: 27.2 t ADT: 11,832

US 40 ALT

Fair

Over: LITTLE BEAVER CREEK

2.06 MILES WEST OF MD 68, Washington, MD

Built 1949 Load: 27.2 t ADT: 6,082

MD 991

Fair

Over: WICOMICO RIVER

0.03 MI E OF SMALL ST, Wicomico, MD

Built 1928 Load: 27.2 t ADT: 12,662

US 50 BUS

Fair

Over: WICOMICO RIVER

0.484 MILE W OF US 13BU, Wicomico, MD

Built 1962 Load: 27.2 t ADT: 20,752

MD 12

Fair

Over: NASSAWANGO CREEK

4.57 MILES N OF MD 354, Worcester, MD

Built 1927 Load: 27.2 t ADT: 4,540

MD 90

Fair

Over: ST MARTIN RIVER

2.8 MILES EAST OF MD 589, Worcester, MD

Built 1970 Load: 27.2 t ADT: 20,063

OAKLEIGH ROAD

Fair

Over: HERRING RUN

0.2 MI S OF PERRING PKWY, Baltimore, MD

Built 1953 Load: 27.2 t ADT: 7,961

HYDES ROAD

Fair

Over: LONG GREEN CREEK

0.5 M W OF LONG GREEN PKE, Baltimore, MD

Built 1952 Load: 27.2 t ADT: 5,400

LITTLE CREEK DRIVE

Fair

Over: DEAD RUN

250 FT W DOGWOOD RD, Baltimore, MD

Built 1952 Load: 27.2 t ADT: 773

BECKLEYSVILLE ROAD

Fair

Over: PRETTYBOY RESERVOIR

3 MI W MIDDLETOWN RD, Baltimore, MD

Built 1931 Load: 27.2 t ADT: 1,100

KEMPTON ROAD

Fair

Over: LAUREL RUN

0.8 M S OF RED OAK ROAD, Garrett, MD

Built 1982 Load: 27.2 t ADT: 250

TAYLOR STREET

Fair

Over: STREAM

0.06 MI W OF 54TH PLACE, Prince George's, MD

Built 1958 Load: 27.2 t ADT: 685

BURNSIDE BRIDGE RO

Fair

Over: ANTIETAM CREEK

0.83 MI SW OF MD RTE 34, Washington, MD

Built 1965 Load: 27.2 t ADT: 461

IS 95 NB

Fair

Over: RACE ST HANOVER ST

Milepost M55.1, Baltimore city, MD

Built 1979 Load: 27.2 t ADT: 66,316

I-895

Fair

Over: US 1 PATAPSCO RIVER RAMP

I-895 Milepost 1.05, Howard, MD

Built 1973 Load: 27.2 t ADT: 15,114

I-695 IL

Fair

Over: BEAR CREEK

MILEPOST M46.2, Baltimore, MD

Built 1975 Load: 27.5 t ADT: 14,819

MD 695 RAMP 3

Fair

Over: CABIN BRANCH

MD 2/MD 695 INTERCHANGE, Anne Arundel, MD

Built 1968 Load: 27.7 t ADT: 34,550

MD 151 WBR

Fair

Over: MERRITT BOULEVARD

0.21 MI N OF MD 695, Baltimore, MD

Built 1968 Load: 27.7 t ADT: 30,031

MD 213

Fair

Over: PERCH CREEK

2.14 MILES SOUTH OF US 40, Cecil, MD

Built 1949 Load: 27.7 t ADT: 12,732

MD 225

Fair

Over: PORT TOBACCO CREEK

1.85 MILES WEST OF US 301, Charles, MD

Built 1929 Load: 27.7 t ADT: 12,302

US 50

Fair

Over: NANTICOKE RIVER

ON WICOMICO CO LINE, Dorchester, MD

Built 1990 Load: 27.7 t ADT: 24,661

MD 97

Fair

Over: REDDY BRANCH

2.89 MILES S OF MD 650, Montgomery, MD

Built 1927 Load: 27.7 t ADT: 10,740

MD 5

Fair

Over: MOLL DYERS RUN

1.26 MILES S OF MD 244, St. Mary's, MD

Built 1937 Load: 27.7 t ADT: 12,500

MD 347

Fair

Over: QUANTICO CREEK

1.02 MILES N OF MD 349, Wicomico, MD

Built 1926 Load: 27.7 t ADT: 1,119

POT SPRING ROAD

Fair

Over: SPRING BRANCH

0.5 MI S OF TIMONIUM RD, Baltimore, MD

Built 1973 Load: 27.7 t ADT: 13,676

ARGYLE AVENUE

Fair

Over: AMTRAK RAILROAD

0.5 M E OF FULTON AV, Baltimore city, MD

Built 1900 Load: 27.7 t ADT: 3,598

MERRY KNOLL LANE

Fair

Over: BRANCH OF OCTORARO CREEK

0.07 MI N OF US 1, Cecil, MD

Built 1983 Load: 27.7 t ADT: 298

HOBBS ROAD

Fair

Over: WATTS CREEK

1 MI SE OF DENTON, Caroline, MD

Built 1936 Load: 27.7 t ADT: 2,019

HESSONG BRIDGE RD

Fair

Over: LITTLE HUNTING CREEK

AT BLACKS MILL RD INT, Frederick, MD

Built 1905 Load: 27.7 t ADT: 980

AMOSS ROAD

Fair

Over: ISLAND BRANCH

0.2 MILES S OF AMOSS ML R, Harford, MD

Built 1972 Load: 27.7 t ADT: 125

GAME PRESERVE ROAD

Fair

Over: WHETSTONE RUN

0.2 MI NORTH OF MD 355, Montgomery, MD

Built 1990 Load: 27.7 t ADT: 2,086

OLD PRINCESS ANNE

Fair

Over: KINGS CREEK

2 MI S OF PRINCESS ANNE, Somerset, MD

Built 1950 Load: 27.7 t ADT: 648

TIMMONSTOWN ROAD

Fair

Over: TIMMONSTOWN BRANCH

0.40 MI NW OF MD 374, Worcester, MD

Built 1999 Load: 27.7 t ADT: 130

UPPER LEVEL ROADWA

Fair

Over: LOWER LEVEL ROADWAY

BWI AIRPORT, Anne Arundel, MD

Built 2006 Load: 27.7 t ADT: 13,521

I-395 SB SPUR

Fair

Over: RUSSELL STREET

Milepost M3.6, Baltimore city, MD

Built 1980 Load: 27.7 t ADT: 17,162

US 220

Fair

Over: MILL RUN

1.88 MI S OF MD 830B, Allegany, MD

Built 1929 Load: 28.1 t ADT: 7,111

MD 295 NBR

Fair

Over: HANOVER ROAD

0.43 M N OF BR NO 0202100, Anne Arundel, MD

Built 1950 Load: 28.1 t ADT: 42,696

MD 295 SBR

Fair

Over: HANOVER ROAD

0.43 M N OF BR NO 0202100, Anne Arundel, MD

Built 1950 Load: 28.1 t ADT: 42,696

MD 2

Fair

Over: US 50/301 & MD 450

0.4 MILE SOUTH OF MD 648F, Anne Arundel, MD

Built 1953 Load: 28.1 t ADT: 46,541

MD 273

Fair

Over: LITTLE NORTHEAST CREEK

1.81 MILES EAST OF MD 272, Cecil, MD

Built 1931 Load: 28.1 t ADT: 6,982

MD 14

Fair

Over: WARWICK RIVER

1.45 MILES EAST OF MD 16, Dorchester, MD

Built 1971 Load: 28.1 t ADT: 1,647

US 219

Fair

Over: SOUTH BRANCH BEAR CREEK

.07 MILE NORTH OF MD 826P, Garrett, MD

Built 1950 Load: 28.1 t ADT: 3,900

MD 249

Fair

Over: ST GEORGES CREEK

0.46 MILE S OF STARK DR, St. Mary's, MD

Built 1957 Load: 28.1 t ADT: 1,530

US 13 NB

Fair

Over: JONES CREEK

0.38 MILE NORTH OF MD 920, Somerset, MD

Built 1934 Load: 28.1 t ADT: 20,870

WOODLAWN DRIVE

Fair

Over: TRIBUTARY TO GWYNNS FALL

.09 MI N WINDSOR MILL, Baltimore, MD

Built 1963 Load: 28.1 t ADT: 15,620

BENTALOU ST

Fair

Over: CSXT RAILROAD

BENTALOU ST OVER CSX, Baltimore city, MD

Built 1965 Load: 28.1 t ADT: 5,600

I-83

Fair

Over: JONES FALLS & UNION AVE

I-83 OVER JF & UNION AVE, Baltimore city, MD

Built 1959 Load: 28.1 t ADT: 95,051

PINEBROOK AVENUE

Fair

Over: CATTAIL BRANCH

500 FEET SOUTH OF MD 202, Prince George's, MD

Built 1969 Load: 28.1 t ADT: 686

NORMAN BALM ENTRAN

Fair

Over: ABANDONED RR

0.1MI NW OF 1728 N MARKET, Frederick, MD

Built 1920 Load: 28.1 t ADT: 5

MD 695 IL

Fair

Over: MD 151 NBR

0.62 MILE NORTH OF MD 150, Baltimore, MD

Built 1967 Load: 28.6 t ADT: 41,012

Showing 351-400 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.