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

RED TOAD ROAD

Fair

Over: CSX RAILROAD

0.67 MI S OF IS 95, Cecil, MD

Built 1973 Load: 39.0 t ADT: 2,391

MD 5 SB

Fair

Over: ZEKIAH SWAMP

0.44 MILE SOUTH OF MD 488, Charles, MD

Built 1932 Load: 39.0 t ADT: 37,490

MD 6

Fair

Over: WARDS RUN

0.34 M W OF HILLTOP ROAD, Charles, MD

Built 1929 Load: 39.0 t ADT: 3,302

HOOPERS ISLAND ROA

Fair

Over: HONGA RIVER

4.41 MI S OF MD RTE 335, Dorchester, MD

Built 1980 Load: 39.0 t ADT: 365

MAPLE DAM ROAD

Fair

Over: BLACKWATER RIVER

13.34 MILES S. OF MD. 16, Dorchester, MD

Built 1997 Load: 39.0 t ADT: 645

YELLOW SPRINGS ROA

Fair

Over: LITTLE TUSCARORA CREEK

0.1 MI N WALTER MARTZ RD, Frederick, MD

Built 1930 Load: 39.0 t ADT: 6,340

DEVILBISS BRIDGE R

Fair

Over: MONOCACY RIVER

0.6 MI W OF DUBLIN RD, Frederick, MD

Built 1980 Load: 39.0 t ADT: 3,371

PARK ACCESS ROAD

Fair

Over: STREAM

0.15 MILES FROM MD ROUTE, Frederick, MD

Built 1985 Load: 39.0 t ADT: 60

ACCIDENT-FRIENDSVI

Fair

Over: SOUTH BRANCH OF BEAR CRE

0.43 MI SE ACC BEAR CR RD, Garrett, MD

Built 1984 Load: 39.0 t ADT: 146

US 1

Fair

Over: BEALMEAR BRANCH

0.46 MILE NORTH OF MD 100, Howard, MD

Built 1929 Load: 39.0 t ADT: 35,932

US 301 SB

Fair

Over: SASSAFRAS RIVER

ON CECIL COUNTY LINE, Kent, MD

Built 1955 Load: 39.0 t ADT: 9,710

MD 445

Fair

Over: SWAN CREEK

2.60 MILES SOUTH OF MD 21, Kent, MD

Built 1929 Load: 39.0 t ADT: 780

MD 182

Fair

Over: BUCKHORN BR

1.345 M S OF MD 28, Montgomery, MD

Built 1931 Load: 39.0 t ADT: 9,850

EAST GUDE DRIVE (W

Fair

Over: CSXT RR & WMATA METRO

0.1 MI EAST OF MD 355, Montgomery, MD

Built 1968 Load: 39.0 t ADT: 23,918

BEACH DRIVE

Fair

Over: ROCK CREEK

0.5 MI S OF JCT SR 547, Montgomery, MD

Built 1968 Load: 39.0 t ADT: 6,789

BELTSVILLE DRIVE

Fair

Over: TRIB TO LITTLE PAINT BR

0.36 MI N OF MD 212, Prince George's, MD

Built 1969 Load: 39.0 t ADT: 20,928

BRIGHTSEAT ROAD

Fair

Over: TRIB TO SOUTHWEST BRANCH

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

Built 1979 Load: 39.0 t ADT: 13,694

LOTTSFORD ROAD

Fair

Over: WESTERN BRANCH

1 MI E OF MD 202, Prince George's, MD

Built 1989 Load: 39.0 t ADT: 22,524

WINDBROOK DRIVE

Fair

Over: PISCATAWAY CREEK

0.12 MI N OF FLORAL PK DR, Prince George's, MD

Built 1974 Load: 39.0 t ADT: 3,434

STEED ROAD

Fair

Over: TINKERS CREEK

0.94 MI W OF MD 223, Prince George's, MD

Built 2006 Load: 39.0 t ADT: 9,833

MILLARD LONG ROAD

Fair

Over: BACK CREEK

1 MI N OF MANOKIN ROAD, Somerset, MD

Built 1996 Load: 39.0 t ADT: 368

MD 471

Fair

Over: ST MARYS RIVER

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

Built 1932 Load: 39.0 t ADT: 4,242

DELABROOKE ROAD

Fair

Over: HORSE LANDING CREEK

2 MI E OF MD RTE 6, St. Mary's, MD

Built 1971 Load: 39.0 t ADT: 200

MD 662C

Fair

Over: POTTS MILL CREEK

2.05 MILES SOUTH OF US 50, Talbot, MD

Built 1911 Load: 39.0 t ADT: 1,481

MD 66

Fair

Over: BEAVER CREEK

0.20 MILE NORTH OF MD 64, Washington, MD

Built 1900 Load: 39.0 t ADT: 4,961

IS 68 WB

Fair

Over: CREEK RD

1.0 MILE WEST OF IS 70, Washington, MD

Built 1965 Load: 39.0 t ADT: 19,000

MD 353

Fair

Over: AYDELOTTE BRANCH

0.77 MILE NORTH OF MD 346, Wicomico, MD

Built 1961 Load: 39.0 t ADT: 4,162

BURNT MILL ROAD

Fair

Over: BURNT MILL BRANCH

1.2 MI E OF MD 353, Wicomico, MD

Built 1974 Load: 39.0 t ADT: 942

MD 365

Fair

Over: PATTYS BRANCH

0.09 MILE EAST OF US 113, Worcester, MD

Built 1967 Load: 39.0 t ADT: 1,310

MD 2

Fair

Over: BRANCH OF MARLEY CREEK

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

Built 1936 Load: 39.5 t ADT: 23,961

IS 97 RAMP 'F'

Fair

Over: VETERANS HIGHWAY

IS 97 INTER W/NEW CUT RD, Anne Arundel, MD

Built 1989 Load: 39.5 t ADT: 10,999

RIVER BRIDGE WAY

Fair

Over: TRIB TO PATUXENT RIVER

750 FT W OF BROCK BR ROAD, Anne Arundel, MD

Built 1994 Load: 39.5 t ADT: 266

IS 83 SBR

Fair

Over: GUNPOWDER FALLS

1.92 M N OF MD 137, Baltimore, MD

Built 1958 Load: 39.5 t ADT: 59,820

MD 702 WBR

Fair

Over: NORTHEAST CREEK

0.10 MILE WEST OF MD 695, Baltimore, MD

Built 1972 Load: 39.5 t ADT: 19,406

BEAVER DAM ROAD

Fair

Over: BEAVER DAM RUN

0.1 MI N COCKEYSVILLE RD, Baltimore, MD

Built 1976 Load: 39.5 t ADT: 27,012

BLACK FRIARS ROAD

Fair

Over: TRIBUTARY TO DEAD RUN

0.06 MI S OF CHESWORTH RD, Baltimore, MD

Built 1960 Load: 39.5 t ADT: 400

I-895 SB

Fair

Over: AMTRAK

Milepost M2.0, Baltimore, MD

Built 1957 Load: 39.5 t ADT: 8,846

CENTRAL AVENUE

Fair

Over: HARFORD RUN

LANCASTER & ALICEANNA ST., Baltimore city, MD

Built 1960 Load: 39.5 t ADT: 4,140

HANOVER STREET

Fair

Over: PATAPSCO RIVER

1.3 MI S OF IS 95, Baltimore city, MD

Built 1973 Load: 39.5 t ADT: 27,673

I-395 RAMP G

Fair

Over: MIDDLE BRANCH, MTA, CSX

Milepost 0.8, Baltimore city, MD

Built 1976 Load: 39.5 t ADT: 49,585

I-395 NB

Fair

Over: HAMBURG ST

Milepost 1.4, Baltimore city, MD

Built 1982 Load: 39.5 t ADT: 28,544

I-695 OL

Fair

Over: CHEMICAL ROAD

0.02 MI N OF MD RTE 173, Baltimore city, MD

Built 1972 Load: 39.5 t ADT: 23,169

MD 496

Fair

Over: BR OF BIG PIPE CREEK

3.03 MI E OF MD 97, Carroll, MD

Built 1931 Load: 39.5 t ADT: 4,042

NORTH TANNERY ROAD

Fair

Over: WEST BR PATAPSCO RIVER

0.8 MI W OF GORSUCH ROAD, Carroll, MD

Built 1974 Load: 39.5 t ADT: 200

MD 5 SB

Fair

Over: ZEKIAH SWAMP

0.54 MILE SOUTH OF MD 488, Charles, MD

Built 1931 Load: 39.5 t ADT: 41,209

PARK MILLS ROAD

Fair

Over: MONOCACY RIVER

1 MI N OF MD RTE 28, Frederick, MD

Built 1979 Load: 39.5 t ADT: 557

LONGS MILL ROAD

Fair

Over: OWENS CREEK

1.8 MI E OF MD 550, Frederick, MD

Built 1979 Load: 39.5 t ADT: 670

HARNEY ROAD

Fair

Over: MIDDLE CREEK

1.12 MI E OF EMMITSBURG, Frederick, MD

Built 1971 Load: 39.5 t ADT: 811

MD 495

Fair

Over: N BR OF CASSLEMAN RIVER

1.98 M S OF NORTH PARK RD, Garrett, MD

Built 1931 Load: 39.5 t ADT: 2,581

US 40

Fair

Over: BUSH CREEK

3.24 MILES EAST OF MD 24, Harford, MD

Built 1935 Load: 39.5 t ADT: 21,093

Showing 2,301-2,350 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.