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

RUSSELL STREET

Fair

Over: MONROE STREET

RUSSELL ST VIA OV MONROE, Baltimore city, MD

Built 2007 Load: 30.8 t ADT: 13,000

MD 313

Fair

Over: FAULKNER BRANCH

1.2 MILE NORTH OF MD 315, Caroline, MD

Built 1955 Load: 30.8 t ADT: 5,080

MD 84

Fair

Over: ROOP BRANCH

.29 MILE NORTH OF MD 800B, Carroll, MD

Built 1948 Load: 30.8 t ADT: 1,702

MD 16

Fair

Over: CABIN CREEK

1.84 MILE SOUTH OF MD 331, Dorchester, MD

Built 1944 Load: 30.8 t ADT: 1,861

MD 180

Fair

Over: BALLENGER CREEK

1.74 MILES WEST OF IS 70, Frederick, MD

Built 1925 Load: 30.8 t ADT: 3,850

MD 550

Fair

Over: MONOCACY RIVER

2.68 MILES N OF MD 194, Frederick, MD

Built 1967 Load: 30.8 t ADT: 3,691

BUFFALO RUN ROAD

Fair

Over: BUFFALO RUN

1.33 MI E OF MD RTE 42, Garrett, MD

Built 1982 Load: 30.8 t ADT: 40

US 40

Fair

Over: SWAN CREEK

0.26 MILE WEST OF MD 132B, Harford, MD

Built 1935 Load: 30.8 t ADT: 27,800

CEDAR LANE

Fair

Over: TRIB / BYNUM RUN

0.8 MILES W OF MD 136, Harford, MD

Built 1971 Load: 30.8 t ADT: 125

MARYLAND AVENUE

Fair

Over: TIBER BRANCH

AT MAIN STREET, Howard, MD

Built 1955 Load: 30.8 t ADT: 6,000

MD 97

Fair

Over: HAWLINGS RIVER

0.88 MILE SOUTH OF MD 650, Montgomery, MD

Built 1930 Load: 30.8 t ADT: 10,740

CAMPUS DR

Fair

Over: DEEP CREEK

0.04 MI W OF MD 201, Prince George's, MD

Built 1964 Load: 30.8 t ADT: 22,650

MD 675

Fair

Over: MANOKIN RIVER

0.08 MILE NORTH OF MD 918, Somerset, MD

Built 1921 Load: 30.8 t ADT: 7,131

GOSSARD MILL ROAD

Fair

Over: ROCKDALE RUN

0.8 MI SE OF MD 494, Washington, MD

Built 1977 Load: 30.8 t ADT: 330

MD 12

Fair

Over: SPRING HILL BRANCH

0.61 MILE SOUTH OF MD 12A, Worcester, MD

Built 1954 Load: 30.8 t ADT: 2,560

DUNG HILL ROAD

Fair

Over: NORTH BRANCH CASSELMAN R

0.7 MI. WEST MD. RTE 495, Garrett, MD

Built 1956 Load: 31.1 t ADT: 676

MD 25

Fair

Over: JONES FALLS

0.20 MILE SOUTH OF IS 83, Baltimore, MD

Built 1930 Load: 31.3 t ADT: 10,911

MD 702 EBR

Fair

Over: NORTHEAST CREEK

0.10 MILE WEST OF MD 695, Baltimore, MD

Built 1972 Load: 31.3 t ADT: 18,645

THORNTON ROAD

Fair

Over: TRIBUTARY TO ROLAND RUN

0.6 MI N OF JOPPA RD, Baltimore, MD

Built 1923 Load: 31.3 t ADT: 8,249

HUNTER MILL ROAD

Fair

Over: TRIBUTARY TO FIRST MINE

100 FT W OF VERNON ROAD, Baltimore, MD

Built 1988 Load: 31.3 t ADT: 325

STRINGTOWN ROAD

Fair

Over: BLACKROCK RUN

0.2 MI E OF FALLS RD, Baltimore, MD

Built 1931 Load: 31.3 t ADT: 332

PENNINGTON AVENUE

Fair

Over: CURTIS CREEK

2 MI S PATAPSCO AVE, Baltimore city, MD

Built 1976 Load: 31.3 t ADT: 13,500

IS 95 RAMP D

Fair

Over: GWYNN FALLS , MIDDLE BR

0.3 MI E RUSSELL ST, Baltimore city, MD

Built 1977 Load: 31.3 t ADT: 15,504

MD 482

Fair

Over: EAST BRANCH PATAPSCO RIV

0.80 MI W OF HAMPSTEAD, Carroll, MD

Built 1936 Load: 31.3 t ADT: 8,212

FLICKINGER ROAD

Fair

Over: BIG PIPE CREEK

0.34 MI N OF STONE RD, Carroll, MD

Built 1940 Load: 31.3 t ADT: 180

MD 277

Fair

Over: BIG ELK CREEK

0.47 MILE WEST OF MD 316, Cecil, MD

Built 1969 Load: 31.3 t ADT: 3,150

MD 272 NB

Fair

Over: BR OF NORTHEAST CREEK

0.41 MILE SOUTH OF MD 7C, Cecil, MD

Built 1968 Load: 31.3 t ADT: 8,302

MD 28

Fair

Over: MONOCACY RIVER

0.98 MI W OF MONT CO, Frederick, MD

Built 1931 Load: 31.3 t ADT: 9,175

BIGGS FORD ROAD

Fair

Over: MONOCACY RIVER

0.55 MI E OF US RTE 15, Frederick, MD

Built 1970 Load: 31.3 t ADT: 6,393

US 40 ALT

Fair

Over: BIG SHADE RUN

0.62 MILE WEST OF MD 669, Garrett, MD

Built 1932 Load: 31.3 t ADT: 1,783

MD 543

Fair

Over: BR OF BYNUM RUN

0.3 MILE NORTH OF MD 136, Harford, MD

Built 1936 Load: 31.3 t ADT: 14,221

QUAKER BOTTOM ROAD

Fair

Over: ROCK RUN

0.01 MIL S OF ROCK RUN RD, Harford, MD

Built 1982 Load: 31.3 t ADT: 220

MD 291

Fair

Over: MORGAN CREEK

1.83 MILES EAST OF MD 213, Kent, MD

Built 1933 Load: 31.3 t ADT: 6,235

SUITLAND ROAD

Fair

Over: HENSON CREEK

.10 MI S OF SUITLAND PKWY, Prince George's, MD

Built 1971 Load: 31.3 t ADT: 15,302

MD 213

Fair

Over: THREE BRIDGES BRANCH

0.39 MILE NORTH OF MD 305, Queen Anne's, MD

Built 1909 Load: 31.3 t ADT: 6,761

MD 5

Fair

Over: MCINTOSH RUN

0.14 MILE SOUTH OF MD 243, St. Mary's, MD

Built 1935 Load: 31.3 t ADT: 22,220

US 40 ALT

Fair

Over: BRADDOCK RUN

0.02 MI W OF MD 55, Allegany, MD

Built 1947 Load: 31.7 t ADT: 9,951

MD 53

Fair

Over: WINCHESTER RUN

0.62 MILE NORTH OF MD 951, Allegany, MD

Built 1924 Load: 31.7 t ADT: 12,872

US 220

Fair

Over: TRIB TO NORTH BR POTOMAC

1.21 M N OF MD 830A, Allegany, MD

Built 1900 Load: 31.7 t ADT: 7,111

BLACK VALLEY ROAD

Fair

Over: FLINTSTONE CREEK

0.02 MI E OF DOLLY RD, Allegany, MD

Built 1964 Load: 31.7 t ADT: 499

MD 26

Fair

Over: BRANCH OF GWYNNS FALLS

0.48 MILE EAST OF IS 695, Baltimore, MD

Built 1965 Load: 31.7 t ADT: 46,342

LONG GREEN ROAD

Fair

Over: LONG GREEN CREEK

100 FT W LONG GREEN PIKE, Baltimore, MD

Built 1970 Load: 31.7 t ADT: 1,621

JOPPA ROAD

Fair

Over: ROLAND RUN

0.2 MI W OF BELLONA AVE, Baltimore, MD

Built 1970 Load: 31.7 t ADT: 5,886

IS 695 IL

Fair

Over: CURTIS CR, B&O RR

0.36 MI N OF AA CO LINE, Baltimore city, MD

Built 1975 Load: 31.7 t ADT: 21,765

KNIFE BOX ROAD

Fair

Over: GAREY MILL POND BRANCH

2.0 MILES NORTH OF MD 317, Caroline, MD

Built 1996 Load: 31.7 t ADT: 1,065

MD 31

Fair

Over: SAMS CREEK

ON FREDERICK CO LINE, Carroll, MD

Built 1921 Load: 31.7 t ADT: 2,611

TREVANION ROAD

Fair

Over: BIG PIPE CREEK

2.05 MILES N OF MD 84, Carroll, MD

Built 1966 Load: 31.7 t ADT: 2,569

US 40 EB

Fair

Over: NORTHEAST CREEK

0.54 MILE EAST OF MD 272, Cecil, MD

Built 1939 Load: 31.7 t ADT: 14,917

US 40 WB

Fair

Over: NORTHEAST CREEK

0.54 MILE EAST OF MD 272, Cecil, MD

Built 1939 Load: 31.7 t ADT: 14,332

MD 224

Fair

Over: REEDER RUN

1.03 MILE NORTH OF MD 344, Charles, MD

Built 1928 Load: 31.7 t ADT: 1,192

Showing 1,601-1,650 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.