State profile · Below national median SD

Maryland bridge safety

Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in Maryland — drawn straight from the FHWA National Bridge Inventory.

5,527
Public bridges
25.9%
Good condition
4.3%
Poor condition
4.3%
Structurally deficient

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 rated 0-4

Structurally Deficient

4.3%

236 bridges flagged for repair priority

-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 — Structurally deficient share 14.2%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.

Condition Distribution

Bridge inventory deck-condition mix — Maryland (FHWA NBI)

Maryland25.909173149990956%49.140582594535914%GoodFairPoorStructurally Deficient
Bridge inventory deck-condition mix — Maryland (FHWA NBI)

Counties (24)

Allegany 245 Anne Arundel 395 Baltimore 787 Baltimore city 380 Calvert 33 Caroline 70 Carroll 205 Cecil 194 Charles 94 Dorchester 47 Frederick 491 Garrett 139 Harford 275 Howard 310 Kent 44 Montgomery 522 Prince George's 582 Queen Anne's 88 Somerset 46 St. Mary's 50 Talbot 42 Washington 301 Wicomico 100 Worcester 82

Maryland vs nearby ranks

Adjacent states on the structurally deficient leaderboard (lower share = better)

States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below Maryland on the same metric.

09

Connecticut

3.95% top marginal rate
Structure
Progressive
Burden @ $100K
$4,277

47

Tennessee

3.97% top marginal rate
Structure
Progressive
Burden @ $100K
$20,426
Selected

24

Maryland

4.27% top marginal rate
Structure
Progressive
Burden @ $100K
$5,527

08

Colorado

4.32% top marginal rate
Structure
Progressive
Burden @ $100K
$8,965

41

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 composite NBI rating. Each is inspected at least every 24 months.

OLD SELBYSPORT RD

Poor

Over: BEAR CREEK

0.01 MI N OF WALNUT ST, Garrett, MD

Built 1920 Load: 2.7 t ADT: 30

ZION ROAD

Poor

Over: HAWLINGS RIVER

2.8 MILES NORTH OF MD 108, Montgomery, MD

Built 1930 Load: 4.5 t ADT: 2,440

ROXBURY ROAD

Poor

Over: BEAVER CREEK

0.1 MI W OF ALT US RTE 40, Washington, MD

Built 1920 Load: 7.3 t ADT: 533

TUFTON AVENUE

Poor

Over: WATERSPOUT RUN

2.63 MI. WEST MD 25, Baltimore, MD

Built 1920 Load: 7.7 t ADT: 7,735

MOHRS LANE

Structurally Deficient

Over: CSX RAILROAD

0.1 MI NW OF US RTE 40, Baltimore, MD

Built 1912 Load: 9.1 t ADT: 1,600

OLD MONTGOMERY RD

Structurally Deficient

Over: LITTLE PATUXENT RIVER

0.5 MI W OF US RTE 29, Howard, MD

Built 1935 Load: 10.0 t ADT: 10

All Bridges in Maryland

MD 182

Fair

Over: BEL PRE CREEK

1.15 MILE NORTH OF MD 97, Montgomery, MD

Built 1991 Load: 32.7 t ADT: 21,002

MD 190

Fair

Over: BOOZE CREEK

0.56 MILE EAST OF IS 495, Montgomery, MD

Built 1962 Load: 32.7 t ADT: 44,290

MD 193

Fair

Over: SLIGO CREEK

1.26 MILES EAST OF MD 97, Montgomery, MD

Built 1932 Load: 32.7 t ADT: 28,580

MD 185

Fair

Over: BR OF ROCK CREEK

0.14 MILE SOUTH OF MD 586, Montgomery, MD

Built 1963 Load: 32.7 t ADT: 38,552

MD 124

Fair

Over: GOSHEN BRANCH

0.6 MI N OF BRINK RD, Montgomery, MD

Built 1989 Load: 32.7 t ADT: 11,560

MD 586

Fair

Over: TURKEY BRANCH

0.98 MILE WEST OF MD 185, Montgomery, MD

Built 1955 Load: 32.7 t ADT: 47,792

IS 495X

Fair

Over: BOOZE CREEK

0.48 MILE SOUTH OF IS 495, Montgomery, MD

Built 1964 Load: 32.7 t ADT: 19,820

MD 185

Fair

Over: TURKEY BRANCH

0.99 MILE SOUTH OF MD 97, Montgomery, MD

Built 1969 Load: 32.7 t ADT: 36,532

CLARA BARTON PKWY

Fair

Over: ROCK RUN

W OF INTERCHANGE, Montgomery, MD

Built 1963 Load: 32.7 t ADT: 13,090

MD 927 & RAMP 'D'

Fair

Over: IS 270 RAMP 'I'

0.13 M E OF BR NO 1506800, Montgomery, MD

Built 1988 Load: 32.7 t ADT: 57,252

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

EDWARDS FERRY ROAD

Fair

Over: C&O CANAL

0.1 miles north of Potoma, Montgomery, MD

Built 1950 Load: 32.7 t ADT: 50

MD 201

Fair

Over: BR OF NORTHEAST BR

0.03 M N OF RIVERDALE RD, Prince George's, MD

Built 1955 Load: 32.7 t ADT: 33,270

MD 501

Fair

Over: BR OF NORTHWEST BRANCH

0.82 MILE EAST OF MD 212, Prince George's, MD

Built 1968 Load: 32.7 t ADT: 13,360

MD 193

Fair

Over: NORTHEAST BRANCH

0.05 MILE WEST OF MD 214, Prince George's, MD

Built 1988 Load: 32.7 t ADT: 15,720

MD 704

Fair

Over: CATTAIL BRANCH

0.52 MILE WEST OF MD 202, Prince George's, MD

Built 1942 Load: 32.7 t ADT: 32,660

US 50PA RAMP 8

Fair

Over: BEAVERDAM CREEK

0.01 MI. W. OF US 50PA, Prince George's, MD

Built 1958 Load: 32.7 t ADT: 1,020

MD 4 EB

Fair

Over: CSX TRANSPORTATION

0.21 MILE NORTH OF US 301, Prince George's, MD

Built 1959 Load: 32.7 t ADT: 46,652

MD 4 WB

Fair

Over: CSX TRANSPORTATION

0.21 MILE NORTH OF US 301, Prince George's, MD

Built 1959 Load: 32.7 t ADT: 46,652

MD 381

Fair

Over: CSX TRANSPORTATION

0.14 MI N OF CHARLES CO, Prince George's, MD

Built 1962 Load: 32.7 t ADT: 6,020

MD 202

Fair

Over: BEAVERDAM CREEK

0.24 MILE SOUTH OF US 50, Prince George's, MD

Built 1942 Load: 32.7 t ADT: 45,682

MD 214

Fair

Over: BR OF SOUTHWEST BR

0.12 MILE EAST OF IS 95, Prince George's, MD

Built 1964 Load: 32.7 t ADT: 76,461

MD 4

Fair

Over: OXON RUN

1.6 MILES NORTH OF MD 458, Prince George's, MD

Built 1959 Load: 32.7 t ADT: 25,592

RICHIE MARLBORO RD

Fair

Over: FEDERAL SPRING BRANCH

0.13 MILE WEST OF MD 4, Prince George's, MD

Built 1960 Load: 32.7 t ADT: 9,861

MD 214

Fair

Over: WATTS BRANCH

0.08 M E WASH DC LINE, Prince George's, MD

Built 1900 Load: 32.7 t ADT: 23,842

MD 410

Fair

Over: BR OF NORTHEAST BRANCH

0.42 MILE WEST OF MD 201, Prince George's, MD

Built 1968 Load: 32.7 t ADT: 37,792

IS 95 NB

Fair

Over: PATUXENT RIVER

ON HOWARD CO LINE, Prince George's, MD

Built 1971 Load: 32.7 t ADT: 186,040

IS 95 SB

Fair

Over: PATUXENT RIVER

ON HOWARD CO LINE, Prince George's, MD

Built 1971 Load: 32.7 t ADT: 186,040

MD 202

Fair

Over: CATTAIL BRANCH

0.61 MILE EAST OF MD 704, Prince George's, MD

Built 1970 Load: 32.7 t ADT: 42,242

MD 197

Fair

Over: BR OF PATUXENT RIVER

1.9 MILES SOUTH OF MD 198, Prince George's, MD

Built 1969 Load: 32.7 t ADT: 44,222

MD 197

Fair

Over: BR OF PATUXENT RIVER

0.254 MILE N OF MD 295, Prince George's, MD

Built 1970 Load: 32.7 t ADT: 44,222

MD 197

Fair

Over: BEAR BRANCH

0.19 MILE SOUTH OF MD 198, Prince George's, MD

Built 1976 Load: 32.7 t ADT: 30,022

MD 193

Fair

Over: FOLLY BRANCH

0.23 MILE WEST OF MD 564, Prince George's, MD

Built 1986 Load: 32.7 t ADT: 26,171

MD 704

Fair

Over: BALD HILL BRANCH

0.31 MILE EAST OF IS 595, Prince George's, MD

Built 1992 Load: 32.7 t ADT: 47,791

US 1

Fair

Over: INDIAN CREEK

0.25 MILE NORTH OF MD 212, Prince George's, MD

Built 1975 Load: 32.7 t ADT: 33,642

US 1 ALT

Fair

Over: BR OF NORTHEAST BRANCH

0.41 MILE NORTH OF MD 450, Prince George's, MD

Built 1955 Load: 32.7 t ADT: 14,112

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

Showing 1,851-1,900 of 5,527 bridges

Related

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Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges Editorial.

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). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.

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.