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

GRIER NURSERY ROAD

Poor

Over: DEER CREEK

1.0 MILE S OF CHERRY H RD, Harford, MD

Built 1955 Load: 24.5 t ADT: 1,660

TRAPPE CHURCH ROAD

Poor

Over: HOLLANDS BRANCH

1.1 MILES SW OF MD 161, Harford, MD

Built 1952 Load: 24.5 t ADT: 591

STATE PARK ROAD

Poor

Over: CHERRY CREEK

0.1 MI S INT ROCK LODGE R, Garrett, MD

Built 1970 Load: 24.9 t ADT: 655

PFEFFERKORN ROAD

Poor

Over: MIDDLE PATUXENT RIVER

1 MI S OF MD RTE 144, Howard, MD

Built 1935 Load: 24.9 t ADT: 1,116

BARNES ROAD

Poor

Over: BENNETT CREEK

0.1 MI N OF CLARKSBURG RD, Montgomery, MD

Built 1925 Load: 24.9 t ADT: 600

WALKER ROAD

Poor

Over: LITTLE FALLS

200 FT S STABLERS CHURCH, Baltimore, MD

Built 1915 Load: 25.4 t ADT: 548

HANOVER STREET

Poor

Over: MIDDLE BRANCH

0.5 MI S OF I 95, Baltimore city, MD

Built 1916 Load: 25.4 t ADT: 14,220

STINES STORE ROAD

Poor

Over: GILBERT SWAMP RUN

0.04 MI W OF MD 234, Charles, MD

Built 1933 Load: 25.4 t ADT: 125

ELLIOTT ISLAND RD

Poor

Over: ELLIOTT CREEK

0.34 MI. E. OF POKES ROAD, Dorchester, MD

Built 1970 Load: 25.4 t ADT: 204

MAPLE GROVE ROAD

Poor

Over: CASSELMAN RIVER

0.08 MI E OF MD RTE 495, Garrett, MD

Built 1926 Load: 25.4 t ADT: 413

MORGNEC ROAD

Poor

Over: TRIB TO CHESTER RIVER

0.2 MI E OF MD RTE 298, Kent, MD

Built 1928 Load: 25.4 t ADT: 265

NAYLOR MILL ROAD

Poor

Over: NAYLORS POND STREAM

1.25 MI W OF US RTE 13, Wicomico, MD

Built 1963 Load: 25.4 t ADT: 15,057

ROLLING ROAD

Poor

Over: TRIBUTARY TO DEAD RUN

0.68 MI N OF IS 70, Baltimore, MD

Built 1961 Load: 25.8 t ADT: 34,803

STONE CHAPEL ROAD

Poor

Over: LITTLE PIPE CREEK

0.10 MI W OF AVONDALE RD, Carroll, MD

Built 1930 Load: 25.8 t ADT: 4,612

GLEN ARM ROAD

Poor

Over: LONG GREEN CREEK

1.52 MILES NW OF MD 147, Baltimore, MD

Built 1987 Load: 26.3 t ADT: 7,740

MD 51

Poor

Over: TOWN CREEK

0.07 MI W OF GUN CLUB RD, Allegany, MD

Built 1932 Load: 26.8 t ADT: 2,022

UNION CHAPEL ROAD

Poor

Over: CATTAIL CREEK

0.5 MI E OF DAISY RD, Howard, MD

Built 1955 Load: 26.8 t ADT: 1,052

ALCONA STREET

Poor

Over: BALD HILL BRANCH

0.04 MI W OF ELLERBIE ST, Prince George's, MD

Built 1967 Load: 26.8 t ADT: 836

GOLDEN RING ROAD

Poor

Over: STEMMERS RUN

0.05 MI N OF OREMS RD, Baltimore, MD

Built 1933 Load: 27.2 t ADT: 3,841

US 1

Poor

Over: WINTERS RUN

0.96 MILE NORTH OF MD 147, Harford, MD

Built 1963 Load: 27.2 t ADT: 21,112

LIVINGSTON ROAD

Poor

Over: PISCATAWAY CREEK

0.49 MI N OF MD 223, Prince George's, MD

Built 1932 Load: 27.2 t ADT: 6,771

HUGHES SHOP ROAD

Poor

Over: BEAR BRANCH

0.025 MI N PLEASANT VA, Carroll, MD

Built 1974 Load: 27.7 t ADT: 152

SOUTHLAWN LANE

Poor

Over: ROCK CREEK

0.25 MI W OF AVERY RD, Montgomery, MD

Built 1920 Load: 27.7 t ADT: 16,792

WITEX ROAD

Poor

Over: ROCK RUN

0.1KM S OF MACARTHUR BLVD, Montgomery, MD

Built 1980 Load: 27.8 t ADT: 500

DAVIS ROAD

Poor

Over: PINEY BRANCH

135 FT S BUNKER HILL RD, Charles, MD

Built 2000 Load: 28.1 t ADT: 4,644

RIVER ROAD

Poor

Over: CASSELMAN RIVER

0.41 MI N OF ALT US 40, Garrett, MD

Built 1885 Load: 28.8 t ADT: 130

HENRYTON ROAD

Poor

Over: TRIBUTARY OF PATAPSCO RI

2.09 MI N OF MD RTE 99, Howard, MD

Built 1925 Load: 29.0 t ADT: 1,113

SCHAEFFER ROAD

Poor

Over: LITTLE SENECA CREEK

0.5 MI E MD RTE 121, Montgomery, MD

Built 1925 Load: 29.5 t ADT: 437

WATERVIEW AVENUE

Poor

Over: MD-295, B/W PARKWAY RAMP

0.6 MI S IS 95, Baltimore city, MD

Built 1950 Load: 29.9 t ADT: 6,124

BROENING HIGHWAY

Poor

Over: COLGATE CREEK

1.5 MI SE OF I-895, Baltimore city, MD

Built 1968 Load: 30.8 t ADT: 27,231

CAREA ROAD

Poor

Over: ISLAND BRANCH

0.3 MILES S OF MD 136, Harford, MD

Built 1970 Load: 30.8 t ADT: 160

SANG RUN ROAD

Poor

Over: YOUGHIOGHENY RIVER

0.4 M SW OAKLAND SANG RUN, Garrett, MD

Built 1955 Load: 31.3 t ADT: 402

OXON HILL ROAD

Poor

Over: BROAD CREEK

0.30 M W OF LIVINGSTON RD, Prince George's, MD

Built 1963 Load: 32.2 t ADT: 30,739

GRABENSTEIN ROAD

Poor

Over: ELK LICK RUN

0.04 MI S OF MD 144, Allegany, MD

Built 1940 Load: 32.7 t ADT: 1,075

MD 710

Poor

Over: BRANCH OF BACK CREEK

0.46 MI E OF MD 2, Anne Arundel, MD

Built 1973 Load: 32.7 t ADT: 22,351

RADECKE AVENUE

Poor

Over: MOORE'S RUN

0.2 MI W CEDONIA AVE, Baltimore city, MD

Built 1930 Load: 32.7 t ADT: 10,737

HARFORD ROAD

Poor

Over: CSX RAILROAD

0.2 MI NE OF BROADWAY, Baltimore city, MD

Built 1900 Load: 32.7 t ADT: 10,713

GREENMOUNT AVENUE

Poor

Over: CSX RAILROAD

0.5 MI N OF NORTH AVE, Baltimore city, MD

Built 1914 Load: 32.7 t ADT: 10,713

LIBERTY GROVE ROAD

Poor

Over: ROCK RUN CREEK

0.7 N OF OLD SCHOOLHOUSE, Cecil, MD

Built 1940 Load: 32.7 t ADT: 918

GRANITE AVENUE

Poor

Over: ROCK RUN CREEK

0.8 MI E OF MAIN ST., Cecil, MD

Built 1930 Load: 32.7 t ADT: 300

OLD MORGANTOWN ROA

Poor

Over: BUFFALO RUN

0.26 MI E OF MD RTE 42, Garrett, MD

Built 1919 Load: 32.7 t ADT: 122

THIRD STREET

Poor

Over: LITTLE YOUGHIOGHENY RIVE

0.12 MI S OF OAK STREET, Garrett, MD

Built 1968 Load: 32.7 t ADT: 1,310

JARRETTSVILLE ROAD

Poor

Over: EAST BRANCH /WINTERS RUN

1.9 MILES E OF MD 165, Harford, MD

Built 1950 Load: 32.7 t ADT: 4,308

PATAPSCO AVENUE WB

Poor

Over: PATAPSCO RIVER

2 MI E BAL WASH EXPR, Baltimore city, MD

Built 1961 Load: 33.1 t ADT: 55,154

BLACK ANKLE ROAD

Poor

Over: TALBOT BRANCH

AT TALBOT RUN ROAD INTERS, Frederick, MD

Built 1979 Load: 33.1 t ADT: 278

MD 5

Poor

Over: HILTON RUN

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

Built 1936 Load: 33.1 t ADT: 8,010

MD 144

Poor

Over: EVITTS CREEK

0.08 MILE EAST OF US 40AB, Allegany, MD

Built 1966 Load: 33.6 t ADT: 7,221

WHEATLEY ROAD

Poor

Over: WEST BRANCH

0.99 MI NE OF MD 272, Cecil, MD

Built 1966 Load: 33.6 t ADT: 304

HESSONG BRIDGE RD

Poor

Over: FISHING CREEK

AT POWELL RD INT, Frederick, MD

Built 1931 Load: 33.6 t ADT: 761

ROSSVILLE BOULEVAR

Poor

Over: AMTRAK AND OREMS ROAD

0.8 MI SE OF PULASKI HWY, Baltimore, MD

Built 1971 Load: 34.0 t ADT: 20,575

Showing 5,351-5,400 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.