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%.

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.

All Bridges in Maryland

US 15/340

Fair

Over: BALLENGER CREEK

1.95 MILES SOUTH OF IS 70, Frederick, MD

Built 1968 Load: 32.7 t ADT: 53,991

MD 75

Fair

Over: BENS BRANCH

0.19 MI S OF MD 874C, Frederick, MD

Built 1964 Load: 32.7 t ADT: 10,783

MD 26

Fair

Over: LINGANORE CREEK

0.22 M W OF BR NO 1016800, Frederick, MD

Built 1950 Load: 32.7 t ADT: 5,482

MD 26

Fair

Over: BRANCH OF LINGANORE CREE

0.58 M W ALBAUGH ROAD, Frederick, MD

Built 1950 Load: 32.7 t ADT: 5,272

MD 550

Fair

Over: FRIENDS CREEK

0.15 M S OF BENTZEL ROAD, Frederick, MD

Built 1981 Load: 32.7 t ADT: 7,861

LEGORE BRIDGE ROAD

Fair

Over: MONOCACY RIVER

3 MI N OF WOODSBORO, Frederick, MD

Built 1903 Load: 32.7 t ADT: 2,045

PARK MILLS ROAD

Fair

Over: BENNETT CREEK

2.75 MI SOUTH OF MD 80, Frederick, MD

Built 1965 Load: 32.7 t ADT: 674

KEY PARKWAY

Fair

Over: ROCK CREEK

500' W OF WILLOWDALE DR., Frederick, MD

Built 1990 Load: 32.7 t ADT: 3,560

COLLEGE AVENUE

Fair

Over: CARROLL CREEK FLOODPLAIN

0.2 MI NORTH OF MD 144, Frederick, MD

Built 1992 Load: 32.7 t ADT: 1,652

NORTH McCAIN DRIVE

Fair

Over: ROCK CREEK

0.2 MI. NORTH OF US 40, Frederick, MD

Built 1996 Load: 32.7 t ADT: 9,790

CHRISTOPHERS CROSS

Fair

Over: EDISON BRANCH

2.7 MI. WEST OF US 15, Frederick, MD

Built 1989 Load: 32.7 t ADT: 4,108

HAYWARD ROAD

Fair

Over: OPOSSUM BRANCH

0.7 MILES WEST OF US 15, Frederick, MD

Built 1990 Load: 32.7 t ADT: 6,712

TUSCANNEY DRIVE

Fair

Over: EDISON BRANCH

1.3 MI WEST OF US 15, Frederick, MD

Built 1998 Load: 32.7 t ADT: 4,027

BIGGS FORD ROAD

Fair

Over: DUBLIN BRANCH

1.5 MI E OF US RTE 15, Frederick, MD

Built 2004 Load: 32.7 t ADT: 3,911

SAVAGE RIVER ROAD

Fair

Over: CRABTREE CREEK

0.03 MI E SPRING LICK RD, Garrett, MD

Built 1950 Load: 32.7 t ADT: 598

SAVAGE RIVER ROAD

Fair

Over: MIDDLE FORK

0.7 MI N OF SPRING LICK R, Garrett, MD

Built 1950 Load: 32.7 t ADT: 544

FRIENDSVILLE ADDIS

Fair

Over: BEAR CREEK

0.04 MI NE OF PARK AVE, Garrett, MD

Built 1979 Load: 32.7 t ADT: 1,055

ACCIDENT BEAR CREE

Fair

Over: BEAR CREEK

0.17 MI SE WALNUT ST, Garrett, MD

Built 1921 Load: 32.7 t ADT: 2,345

ARTHUR DEVINE ROAD

Fair

Over: BEAR CREEK

0.1 MI SW ACC BEAR CR RD, Garrett, MD

Built 1935 Load: 32.7 t ADT: 27

US 1 BU

Fair

Over: WINTERS RUN

0.87 MILE NORTH OF US 1, Harford, MD

Built 1930 Load: 32.7 t ADT: 20,564

US 1 & RAMP C(2)

Fair

Over: BYNUM RUN

0.25 MILE NORTH OF MD 24, Harford, MD

Built 1964 Load: 32.7 t ADT: 23,320

MD 165

Fair

Over: BROAD CREEK

0.4 MILE NORTH OF MD 543, Harford, MD

Built 1959 Load: 32.7 t ADT: 5,772

MD 462

Fair

Over: SWAN CREEK

0.84 MILE NORTH OF MD 22, Harford, MD

Built 1978 Load: 32.7 t ADT: 7,401

MD 543

Fair

Over: DEER CREEK

1.47 MILES S OF MD 440, Harford, MD

Built 1932 Load: 32.7 t ADT: 7,736

LAKE FANNY ROAD

Fair

Over: WINTERS RUN

0.2 MILES S OF US 1, Harford, MD

Built 1913 Load: 32.7 t ADT: 11

OLD FALLSTON ROAD

Fair

Over: MA & PA RAILROAD (ABAND)

0.3 MILES S OF MD 152, Harford, MD

Built 1930 Load: 32.7 t ADT: 2,210

CLAYTON ROAD

Fair

Over: MOUNTAIN BRANCH

0.3 MILES W OF SINGER RD, Harford, MD

Built 1970 Load: 32.7 t ADT: 766

I-95

Fair

Over: GRAYS RUN

Milepost M83.1, Harford, MD

Built 1963 Load: 32.7 t ADT: 116,162

I-95

Fair

Over: SUSQUEHANNA RIVER,PA RR

HARFORD-CECIL CO LINE, Harford, MD

Built 1963 Load: 32.7 t ADT: 86,430

US 1 & RAMP C(8)

Fair

Over: GUILFORD BRANCH

0.26 M S OF GUILFORD ROAD, Howard, MD

Built 1983 Load: 32.7 t ADT: 38,190

MD 851

Fair

Over: SOUTH BR PATAPSCO RIVER

ON CARROLL CO LINE, Howard, MD

Built 1975 Load: 32.7 t ADT: 1,301

MD 175

Fair

Over: PEDESTRIAN WALKWAY

1.56 MILES N OF MD 175HC, Howard, MD

Built 1975 Load: 32.7 t ADT: 44,142

MD 32 RAMP A(2)

Fair

Over: GUILFORD BRANCH

0.05 MILE EAST OF US 1, Howard, MD

Built 1983 Load: 32.7 t ADT: 3,123

MD 32, CD'S, CO RD

Fair

Over: GUILFORD BRANCH

0.418 MILE SOUTH OF US 1, Howard, MD

Built 1983 Load: 32.7 t ADT: 66,020

FOLLY QUARTER RD

Fair

Over: MIDDLE PATUXENT RIVER

2.7 MI S OF MD RTE 144, Howard, MD

Built 1922 Load: 32.7 t ADT: 3,489

BUSHY PARK ROAD

Fair

Over: CATTAIL CREEK

0.1 MI W CARRS MILL RD, Howard, MD

Built 1970 Load: 32.7 t ADT: 317

FREDERICK ROAD

Fair

Over: LITTLE PATUXENT RIVER

0.5 MI E CENTENNIAL LANE, Howard, MD

Built 1930 Load: 32.7 t ADT: 10,927

OLD COLUMBIA ROAD

Fair

Over: MIDDLE PATUXENT RIVER

0.01 MI E OF US RTE 29, Howard, MD

Built 1920 Load: 32.7 t ADT: 3,484

PRICE MANOR WAY

Fair

Over: HAMMOND BRANCH

0.18 MI N OF FULTON RD, Howard, MD

Built 1969 Load: 32.7 t ADT: 100

MD 20

Fair

Over: SHIPYARD CREEK

1.20 MILES WEST OF MD 21, Kent, MD

Built 1920 Load: 32.7 t ADT: 4,590

MD 289

Fair

Over: RADCLIFF CREEK

0.82 MILE SOUTH OF MD 213, Kent, MD

Built 1948 Load: 32.7 t ADT: 3,563

MD 299

Fair

Over: HERRING BRANCH

0.46 M S OF CECIL CO LINE, Kent, MD

Built 1913 Load: 32.7 t ADT: 753

MD 289

Fair

Over: SPILLWAY OF CHESTER RIVE

0.12 M S OF COLLINS AVE, Kent, MD

Built 1948 Load: 32.7 t ADT: 4,023

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

E. RIXEY ROAD

Fair

Over: STONEY CREEK

10M W STONE LAKE RD, Montgomery, MD

Built 1975 Load: 32.7 t ADT: 500

MD 28 & RAMP 6

Fair

Over: WATTS BRANCH

0.18 MILE WEST OF IS 270, Montgomery, MD

Built 1955 Load: 32.7 t ADT: 47,601

US 29

Fair

Over: NORTHWEST BRANCH

0.27 M S OF LOCKWOOD DR, Montgomery, MD

Built 1920 Load: 32.7 t ADT: 67,927

MD 107

Fair

Over: DRY SENECA CREEK

1.4 MILES WEST OF MD 28, Montgomery, MD

Built 1992 Load: 32.7 t ADT: 5,862

MD 115

Fair

Over: ROCK CREEK

0.34 M E OF OLDE MILL RUN, Montgomery, MD

Built 1970 Load: 32.7 t ADT: 16,981

MD 124

Fair

Over: GREAT SENECA CREEK

0.23 MI S OF WATKINS RD, Montgomery, MD

Built 1989 Load: 32.7 t ADT: 11,881

Showing 1,801-1,850 of 5,527 bridges

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.