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

TUCKER ROAD

Fair

Over: TRIB TO HENSON CREEK

0.01 MI N OF FERGUSON LA, Prince George's, MD

Built 1978 Load: 49.0 t ADT: 7,075

EAST SWAN CREEK RO

Fair

Over: CLASH CREEK

0.42 MI W OF MD 210, Prince George's, MD

Built 1989 Load: 49.0 t ADT: 13,440

HAINES POINT ROAD

Fair

Over: TRIB OF UPPER THOROFARE

AT HARRISON POINT ROAD, Somerset, MD

Built 1986 Load: 49.0 t ADT: 81

FENWICK STREET

Fair

Over: TOWN RUN

0.3 MILE NORTH OF MD 5, St. Mary's, MD

Built 1955 Load: 49.0 t ADT: 7,918

MD 333

Fair

Over: TRED AVON RIVER

0.12 MILE SOUTH OF MD 322, Talbot, MD

Built 1955 Load: 49.0 t ADT: 8,882

MD 62

Fair

Over: LITTLE ANTIETAM CREEK

0.626 MILE SOUTH OF MD 60, Washington, MD

Built 1931 Load: 49.0 t ADT: 2,080

UNGER ROAD

Fair

Over: GROVE CREEK

0.2 MI N OLD FORGE RD, Washington, MD

Built 1908 Load: 49.0 t ADT: 498

MD 174

Fair

Over: AMTRAK

0.71 MILE SOUTH OF MD 170, Anne Arundel, MD

Built 1931 Load: 49.4 t ADT: 19,339

MD 100M (COCA-COLA

Fair

Over: DEEP RUN

HOWARD COUNTY LINE, Anne Arundel, MD

Built 1996 Load: 49.4 t ADT: 9,784

MD 43 & RAMP N

Fair

Over: CSX TRANSPORTATION

0.08 MILE WEST OF US 40, Baltimore, MD

Built 1963 Load: 49.4 t ADT: 22,608

SEMINARY AVENUE

Fair

Over: LONG QUARTER BRANCH

0.08 MI W OF MD 146, Baltimore, MD

Built 1953 Load: 49.4 t ADT: 7,400

MD 482

Fair

Over: CSX TRANSPORTATION

0.151 MILE WEST OF MD 20, Carroll, MD

Built 1982 Load: 49.4 t ADT: 8,632

MD 854B

Fair

Over: MORGAN RUN

3.63 MILE SOUTH OF MD 32, Carroll, MD

Built 1983 Load: 49.4 t ADT: 1,970

CORONA BAYARD ROAD

Fair

Over: NORTH BRANCH OF POTOMAC

ON WEST VIRGINIA LINE, Garrett, MD

Built 2013 Load: 49.4 t ADT: 96

JAMES RUN ROAD

Fair

Over: JAMES RUN

0.5 MILES E OF MD 136, Harford, MD

Built 1977 Load: 49.4 t ADT: 1,215

US 1 NB

Fair

Over: LITTLE PATUXENT RIVER

0.38 MILE SOUTH OF MD 32, Howard, MD

Built 1955 Load: 49.4 t ADT: 19,773

MD 355

Fair

Over: LITTLE SENECA CREEK

1.44 MILES NORTH OF MD 27, Montgomery, MD

Built 1922 Load: 49.4 t ADT: 13,820

OAKLYN DRIVE

Fair

Over: ROCK RUN

1 MI SOUTH OF MD 189, Montgomery, MD

Built 1989 Load: 49.4 t ADT: 3,785

UPPER POTOMAC INDU

Fair

Over: CSXT RAILROAD

0.08 MI E OF US 220, Allegany, MD

Built 1975 Load: 49.9 t ADT: 120

US 1

Fair

Over: PATAPSCO RIVER

ON HOWARD CO LINE, Baltimore, MD

Built 1915 Load: 49.9 t ADT: 25,532

IS 195 NBR

Fair

Over: CSX TRANSPORTATION

0.26 MILE NORTH OF US 1, Baltimore, MD

Built 1972 Load: 49.9 t ADT: 41,831

IS 895

Fair

Over: MTA LIGHT RAIL

Milepost 5.2, Baltimore, MD

Built 1957 Load: 49.9 t ADT: 36,977

MANNASOTA AVENUE

Fair

Over: HERRING RUN

0.6 MI W ERDMAN AVE, Baltimore city, MD

Built 1928 Load: 49.9 t ADT: 2,933

IS 95 RAMP B

Fair

Over: WB MCCOMAS ST

0.15 MI N OF HANOVER ST, Baltimore city, MD

Built 1982 Load: 49.9 t ADT: 7,909

MD 4 NB

Fair

Over: LYONS CREEK

ON ANNE ARUNDEL CO LINE, Calvert, MD

Built 1987 Load: 49.9 t ADT: 46,661

WALNUT STREET

Fair

Over: STONE RUN

0.59 MI N OF MD 273, Cecil, MD

Built 1991 Load: 49.9 t ADT: 2,197

SMALLWOOD DRIVE EB

Fair

Over: CSX TRANSPORTATION

0.25 mi E MD RTE 925, Charles, MD

Built 1966 Load: 49.9 t ADT: 13,201

N. BENTZ STREET

Fair

Over: CARROLL CREEK

365' NORTH OF MD 144, Frederick, MD

Built 1992 Load: 49.9 t ADT: 7,250

IS 68/US 219 EB

Fair

Over: CASSELMAN RIVER

1.08 MILE EAST OF MD 495, Garrett, MD

Built 1975 Load: 49.9 t ADT: 17,770

IS 68/US 219 WB

Fair

Over: CASSELMAN RIVER

1.08 MILE EAST OF MD 495, Garrett, MD

Built 1975 Load: 49.9 t ADT: 17,770

BUTTERMILK ROAD

Fair

Over: TRIB / BIG BRANCH

0.6 MILES N OF W HEAPS RD, Harford, MD

Built 1978 Load: 49.9 t ADT: 86

OLD PYLESVILLE RD

Fair

Over: TRIB / JACKS HOLE

0.2 MILES NE OF MD 165, Harford, MD

Built 1997 Load: 49.9 t ADT: 541

HALL STREET

Fair

Over: HEAVENLY WATERS

0.4 MILES SW OF MD 924, Harford, MD

Built 1999 Load: 49.9 t ADT: 113

I-95

Fair

Over: JAMES RUN

6.9 MI N BALT-HAR CO LINE, Harford, MD

Built 1963 Load: 49.9 t ADT: 130,492

US 29 SB

Fair

Over: LITTLE PATUXENT RIVER

1.62 MILES S OF MD 175, Howard, MD

Built 1950 Load: 49.9 t ADT: 73,292

TOWN & COUNTRY BOU

Fair

Over: SUCKER BRANCH

0.05 MI OF RODGERS AVE, Howard, MD

Built 1966 Load: 49.9 t ADT: 10,030

MD 410

Fair

Over: ROCK CREEK

0.55 MILE EAST OF MD 186, Montgomery, MD

Built 1974 Load: 49.9 t ADT: 26,931

EDMONSTON DRIVE

Fair

Over: CSXT RR & WMATA METRO

0.05 MILES EAST OF MD 355, Montgomery, MD

Built 1981 Load: 49.9 t ADT: 10,524

MOUNT AETNA ROAD

Fair

Over: ANTIETAM CREEK

0.8 MI W OF US RTE 40, Washington, MD

Built 1980 Load: 49.9 t ADT: 7,260

MD 144

Fair

Over: ELK LICK CREEK

0.62 M E OF BR NO 0115400, Allegany, MD

Built 1960 Load: 50.3 t ADT: 1,121

IS 68 RAMP 'B'(6)

Fair

Over: HOWARD STREET

0.44 MI E OF US 48H, Allegany, MD

Built 1968 Load: 50.3 t ADT: 13,342

MD 170

Fair

Over: SEVERN RUN

1.2 MILE NORTH OF MD 175, Anne Arundel, MD

Built 1936 Load: 50.3 t ADT: 21,621

MD 25

Fair

Over: MTA LIGHT RAIL, JONES FA

0.5 MI N OF NORTHERN PKWY, Baltimore, MD

Built 1992 Load: 50.3 t ADT: 13,551

MD 145 (PAPER MILL

Fair

Over: GUNPOWDER FALLS

1.7 MI. E. OF YORK ROAD, Baltimore, MD

Built 2000 Load: 50.3 t ADT: 10,100

I-95

Fair

Over: GUNPOWDER FALLS

2.3 MI S BALT-HAR CO LINE, Baltimore, MD

Built 1963 Load: 50.3 t ADT: 178,830

MORAVIA ROAD RAMP

Fair

Over: HERRING RUN

MORAVIA RAMP TO PULASKI H, Baltimore city, MD

Built 1970 Load: 50.3 t ADT: 8,480

IS 95 RAMP A

Fair

Over: CSX LOCUST POINT YARD

0.5 mi N OF EXIT FOR I395, Baltimore city, MD

Built 1978 Load: 50.3 t ADT: 8,391

MD 24 SB

Fair

Over: OTTERS POINT CREEK

0.1 MILE NORTH OF US 40, Harford, MD

Built 1967 Load: 50.3 t ADT: 20,242

ST CLAIR BRIDGE RD

Fair

Over: DEER CREEK

1.7 MILES S OF MD 165, Harford, MD

Built 1961 Load: 50.3 t ADT: 390

MD 212

Fair

Over: SLIGO CREEK

0.08 MILE SOUTH OF MD 410, Prince George's, MD

Built 1961 Load: 50.3 t ADT: 37,411

Showing 2,851-2,900 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.