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

RACE TRACK ROAD

Fair

Over: TRIB OF PATUXENT RIVER

1000 FT S BOWIE RACE TRCK, Prince George's, MD

Built 1969 Load: 81.6 t ADT: 11,670

SOUTH POINTE DRIVE

Fair

Over: TRIBUTARY OF ANTIETAM CR

0.2 MI N OF EAST RIDGE DR, Washington, MD

Built 1993 Load: 81.6 t ADT: 3,828

IS 68

Fair

Over: WEST TRIB FLINTSTONE CRE

0.24 M W OF BR NO 0107700, Allegany, MD

Built 1990 Load: 82.1 t ADT: 18,551

BETHEL ROAD

Fair

Over: BURNT MILL BRANCH

600 FT N POPLAR NECK RD, Wicomico, MD

Built 1967 Load: 82.1 t ADT: 867

MD 5

Fair

Over: EASTERN BRANCH

1.47 MILES N OF MD 489, St. Mary's, MD

Built 2016 Load: 82.3 t ADT: 10,000

BW PARKWAY (NBL)

Fair

Over: MD ROUTE 410

1.1 MILES NORTH OF MD ROU, Prince George's, MD

Built 1997 Load: 82.5 t ADT: 40,000

BRICE ROAD

Fair

Over: MUDDY RUN

0.13 S OF BLUE MTN ROAD, Frederick, MD

Built 1998 Load: 83.0 t ADT: 292

BEL PRE ROAD

Fair

Over: BEL PRE CREEK

0.5 MILES WEST OF MD 182, Montgomery, MD

Built 1955 Load: 83.0 t ADT: 31,186

BRIGHTON DAM ROAD

Fair

Over: HAWLINGS RIVER

0.9 MI W OF JCT SR MD 650, Montgomery, MD

Built 1920 Load: 83.0 t ADT: 2,990

DEMOCRACY BLVD

Fair

Over: BUCK BRANCH

2 MI E OF JCT SR MD 189, Montgomery, MD

Built 1988 Load: 83.0 t ADT: 16,780

EBENEZER ROAD

Fair

Over: WHITE MARSH RUN

0.22 MI S OF US 40, Baltimore, MD

Built 1988 Load: 83.4 t ADT: 12,715

JOLLY ACRES ROAD

Fair

Over: DEER CREEK

2.0 MILES W OF MD 23, Harford, MD

Built 1973 Load: 83.9 t ADT: 80

SKYLARK ROAD

Fair

Over: LITTLE SENECA CREEK

0.7 MI WEST OF MD 27, Montgomery, MD

Built 2006 Load: 84.4 t ADT: 5,507

MD 272

Fair

Over: HANCE POINT CREEK

3.05 MILES SOUTH OF MD 7C, Cecil, MD

Built 1957 Load: 85.3 t ADT: 2,650

MD 363

Fair

Over: MANOKIN RIVER

0.06 MILE WEST OF US 13, Somerset, MD

Built 1974 Load: 85.3 t ADT: 3,722

GARRETT A MORGAN B

Fair

Over: UNNAMED TRIBUTARY

0.6 MI NORTH OF MD 214, Prince George's, MD

Built 1993 Load: 85.3 t ADT: 20,637

HUNTMASTER ROAD

Fair

Over: GOSHEN BRANCH

0.2 MI NORTH OF BRINK RD, Montgomery, MD

Built 1920 Load: 85.4 t ADT: 480

IS 195 EBR

Fair

Over: MD 295 SBR RAMP B

0.83 MILE NORTH OF MD 170, Anne Arundel, MD

Built 1990 Load: 85.7 t ADT: 56,601

MD 355

Fair

Over: CAPITAL CRESCENT TRAIL

0.08 MILE SOUTH OF MD 410, Montgomery, MD

Built 1988 Load: 85.7 t ADT: 28,620

GLEN ROAD

Fair

Over: WATTS BRANCH

1.5 MI W OF JCT SR 189, Montgomery, MD

Built 1930 Load: 85.7 t ADT: 8,250

US 40 ALT

Fair

Over: BEAVER CREEK

1.75 MILES EAST OF MD 741, Washington, MD

Built 1931 Load: 86.2 t ADT: 6,082

MULBERRY POINT RD

Fair

Over: WOODREST CREEK

.06 MI N OF ANTI-AIRCRAFT, Harford, MD

Built 1985 Load: 86.5 t ADT: 100

MD 300

Fair

Over: TRIB TO ANDOVER BRANCH

1.75 M W OF DELAWARE LINE, Queen Anne's, MD

Built 1995 Load: 86.6 t ADT: 2,461

MD 10 NBR

Fair

Over: MARLEY CREEK

0.45 MI S OF MD 648E, Anne Arundel, MD

Built 1988 Load: 87.1 t ADT: 43,170

MD 145

Fair

Over: GREENE BRANCH

0.73 MILE W OF COOPER RD, Baltimore, MD

Built 1929 Load: 87.1 t ADT: 12,712

BEAVER DAM ROAD

Fair

Over: GOODWIN RUN

0.30 MI. N OF PADONIA RD., Baltimore, MD

Built 1997 Load: 87.1 t ADT: 10,960

SILENT CREEK ROAD

Fair

Over: DRAINAGE DITCH

.15 MI N OF BILLINGSLY RD, Charles, MD

Built 2009 Load: 87.5 t ADT: 610

OAKDALE SCHOOL ROA

Fair

Over: TRIBUTARY TO LONG BRANCH

0.2 MI N OF OLD NATL PIKE, Frederick, MD

Built 2001 Load: 88.0 t ADT: 1,790

COON BOX ROAD

Fair

Over: ISLAND CREEK

0.3 MI. E. BURRISVILLE RD, Queen Anne's, MD

Built 1982 Load: 88.0 t ADT: 332

US 40 SCN

Fair

Over: SIDELING HILL CREEK

WASHINGTON COUNTY LINE, Allegany, MD

Built 1925 Load: 88.4 t ADT: 281

MD 7C

Fair

Over: NORTHEAST CREEK

0.27 MILE SOUTH OF MD 272, Cecil, MD

Built 1921 Load: 89.3 t ADT: 2,360

MD 17

Fair

Over: BROAD RUN

0.07 MI N OF ARNOLD ROAD, Frederick, MD

Built 1959 Load: 89.3 t ADT: 2,061

MD 5

Fair

Over: ST CLEMENTS CREEK

0.72 MILE SOUTH OF MD 238, St. Mary's, MD

Built 1929 Load: 89.3 t ADT: 6,450

HOLLY ROAD

Fair

Over: TRIB OF CHOPTANK RIVER

2.5 MI N OF MD RTE 404, Caroline, MD

Built 1972 Load: 89.3 t ADT: 1,745

MD 2

Fair

Over: BRANCH OF CYPRESS CREEK

0.15 M N OF CYPRUS CRK RD, Anne Arundel, MD

Built 1971 Load: 89.8 t ADT: 64,211

NORTHERN PARKWAY

Fair

Over: HERRING RUN

0.6 MI E OF LOCH RAVEN BD, Baltimore city, MD

Built 1964 Load: 89.8 t ADT: 24,655

COX ROAD

Fair

Over: SEWELL BRANCH

0.5 MILES EAST OF MD 2-4, Calvert, MD

Built 1994 Load: 89.8 t ADT: 1,670

EASTERN AVENUE

Fair

Over: JONES FALLS

WEST OF PRESIDENT STR., Baltimore city, MD

Built 1991 Load: 90.2 t ADT: 2,446

I-395 RAMP SPUR

Fair

Over: STADIUM LOT

MILEPOST 1.2, Baltimore city, MD

Built 1981 Load: 90.2 t ADT: 21,421

GRANITE ROCK ROAD

Fair

Over: TRIBUTARY TO LITTLE SENE

1 MI NORTHEAST OF MD 355, Montgomery, MD

Built 2007 Load: 96.9 t ADT: 412

US 13 SB

Fair

Over: KINGS CREEK

0.18 MILE SOUTH OF MD 920, Somerset, MD

Built 1962 Load: 97.2 t ADT: 10,500

IS 68

Fair

Over: BRANCH OF EVITTS CREEK

0.07MI E OF MD 144, Allegany, MD

Built 1938 Load: 99.9 t ADT: 26,680

MD 36

Fair

Over: JENNINGS RUN

0.06 MI N OF MD 638, Allegany, MD

Built 1985 Load: 99.9 t ADT: 2,150

MD 144

Fair

Over: FLINTSTONE CREEK

0.06 MI E OF MD 940AO, Allegany, MD

Built 1900 Load: 99.9 t ADT: 1,121

IS 68

Fair

Over: SNIB HOLLOW RUN

1.15 MI W OF MD 948Y, Allegany, MD

Built 1986 Load: 99.9 t ADT: 15,460

IS 68 & US 40 SCN

Fair

Over: SNIB HOLLOW RUN

0.62 M E OF US 40 SC, Allegany, MD

Built 1986 Load: 99.9 t ADT: 15,460

IS 68 & US 40 SCN

Fair

Over: SNIB HOLLOW RUN

0.64MI W OF WASH CO LINE, Allegany, MD

Built 1986 Load: 99.9 t ADT: 15,460

IS 68

Fair

Over: SNIB HOLLOW RUN

0.22 MI W OF US 40SC, Allegany, MD

Built 1962 Load: 99.9 t ADT: 15,460

MD 36

Fair

Over: MOORES RUN

0.22 MILE NORTH OF MD 935, Allegany, MD

Built 1981 Load: 99.9 t ADT: 5,740

MD 144

Fair

Over: ELK LICK RUN

0.16 M E OF ROCKY GAP RD, Allegany, MD

Built 1990 Load: 99.9 t ADT: 1,161

Showing 3,101-3,150 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.