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

LICKING CREEK ROAD

Fair

Over: LANES RUN

0.9 MI N OF US RTE 40, Washington, MD

Built 1960 Load: 10.0 t ADT: 40

BLACKS MILL ROAD

Fair

Over: BIG HUNTING CREEK

WEST OF LAYMAN RD INT, Frederick, MD

Built 1914 Load: 10.4 t ADT: 450

CHERRY HILL ROAD

Fair

Over: DEER CREEK

0.02 MILES NE OF MD 24, Harford, MD

Built 1900 Load: 10.9 t ADT: 559

CRYSTAL FALLS DRIV

Fair

Over: BEAVER CREEK

0.36 MI N OF MD RTE 64, Washington, MD

Built 1890 Load: 10.9 t ADT: 678

MILLBROOK ROAD

Fair

Over: LITTLE ANTIETAM CREEK

0.5 MI W OF MD RTE 67, Washington, MD

Built 1920 Load: 10.9 t ADT: 1,173

MACARTHUR BLVD.

Fair

Over: CABIN JOHN CREEK

1.5 MI. E. OF I-495, Montgomery, MD

Built 1863 Load: 11.7 t ADT: 6,000

NEW BRIDGE RD

Fair

Over: OCTORARO CREEK

0.02 MI W OF HORSESHOE RD, Cecil, MD

Built 1884 Load: 12.2 t ADT: 1,279

GORMAN STREET

Fair

Over: NYDEGGER RUN

0.32 MI NORTH OF MD 560, Garrett, MD

Built 2002 Load: 12.2 t ADT: 53

PARK ROAD 2

Fair

Over: LITTLE TONOLOWAY CREEK

0.16 MI N MD RT 144, Washington, MD

Built 1950 Load: 12.8 t ADT: 123

POLLING HOUSE ROAD

Fair

Over: ROCK BRANCH

0.7 MI N OF MD RTE 422, Anne Arundel, MD

Built 1965 Load: 13.2 t ADT: 375

BENNIES HILL ROAD

Fair

Over: CATOCTIN CREEK

0.65 MI EAST OF MD 17, Frederick, MD

Built 1880 Load: 13.2 t ADT: 131

SHAWAN ROAD

Fair

Over: TRIBUTARY OF OREGON BRAN

0.7 MI E OF FALLS RD, Baltimore, MD

Built 1920 Load: 13.6 t ADT: 16,772

THISTLE ROAD

Fair

Over: TRIBUTARY TO PATAPSCO RI

0.57 MI S OF MD 144, Baltimore, MD

Built 1920 Load: 13.6 t ADT: 2,400

LOCH RAVEN DRIVE

Fair

Over: MINEBANK RUN

0.09 MI W CROMWELL BRDG R, Baltimore city, MD

Built 1900 Load: 13.6 t ADT: 309

KEYSVILLE ROAD

Fair

Over: TOMS CREEK

2.0 MI NORTHEAST OF MD 76, Frederick, MD

Built 1876 Load: 13.6 t ADT: 451

PUTNAM ROAD

Fair

Over: WEST BRANCH/WINTERS RUN

1.5 MILES E OF MD 165, Harford, MD

Built 1950 Load: 13.6 t ADT: 648

GLEN ROAD

Fair

Over: KILGOUR BRANCH

1.5 MI WEST OF MD 189, Montgomery, MD

Built 1942 Load: 13.6 t ADT: 5,880

KEEDYSVILLE ROAD

Fair

Over: ANTIETAM CREEK

0.8 MI NW OF MD RTE 34, Washington, MD

Built 1830 Load: 13.6 t ADT: 1,173

DOGSTREET ROAD

Fair

Over: LITTLE ANTIETAM CREEK

1.89 MI W OF MD RTE 67, Washington, MD

Built 1850 Load: 13.6 t ADT: 1,560

FORGE HILL ROAD

Fair

Over: DEER CREEK

1.6 MILES S OF US 1, Harford, MD

Built 1925 Load: 13.9 t ADT: 112

JACOBS ROAD

Fair

Over: SEVERN RUN

0.64 MI E OF MD 174, Anne Arundel, MD

Built 1974 Load: 14.5 t ADT: 4,339

MCCAULEY ROAD

Fair

Over: BASIN RUN

0.01 MI NE OF DR JACK RD, Cecil, MD

Built 1884 Load: 14.5 t ADT: 526

MD 550

Fair

Over: CABBAGE RUN

1.39 MILES NORTH OF MD 26, Frederick, MD

Built 1939 Load: 14.5 t ADT: 2,785

STEVENS ROAD

Fair

Over: HUNTING CREEK

WEST OF OLD FREDERICK RD, Frederick, MD

Built 1914 Load: 14.5 t ADT: 135

MATTHEW HENSON AVE

Fair

Over: CATTAIL BRANCH

0.04 MI S GREEN LEAF RD, Prince George's, MD

Built 1956 Load: 14.5 t ADT: 2,241

US 340

Fair

Over: POTOMAC RIVER, CSX TRANS

ON VIRGINIA STATE LINE, Washington, MD

Built 1946 Load: 14.5 t ADT: 20,830

CUBA ROAD

Fair

Over: WESTERN RUN

0.3 MI S WESTERN RUN RD, Baltimore, MD

Built 1893 Load: 15.0 t ADT: 3,524

RESEARCH AVENUE

Fair

Over: TRIBUTARY TO PATAPSCO RI

0.08 MI W OF HMDS FERY RD, Baltimore, MD

Built 1955 Load: 15.0 t ADT: 224

MARSHALL AVENUE

Fair

Over: TRIBUTARY TO PATUXENT RI

0.17 MILES EAST OF US 1, Prince George's, MD

Built 1962 Load: 15.0 t ADT: 15,635

PROSPECT STREET

Fair

Over: ANTIETAM STREET

1000 FT W OF US RTE 40 E, Washington, MD

Built 1836 Load: 15.0 t ADT: 2,730

SPRING GAP ACCESS

Fair

Over: C&O CANAL

0.1 miles from Spring Gap, Allegany, MD

Built 1969 Load: 15.4 t ADT: 72

WRIGHTS MILL ROAD

Fair

Over: GRANITE BRANCH

0.46 MI N OF DAVIS AVE, Baltimore, MD

Built 1920 Load: 15.4 t ADT: 239

NEW VALLEY ROAD

Fair

Over: BASIN RUN

0.03 MI N OF BASIN RUN RD, Cecil, MD

Built 1977 Load: 15.4 t ADT: 109

HOLTER ROAD

Fair

Over: HOLLOW CREEK

1 MILE SOUTHEAST OF MD 17, Frederick, MD

Built 1920 Load: 15.4 t ADT: 3,333

MAINTENANCE ROAD

Fair

Over: BLUE BLAZES CREEK

US-15N, WEST ON MC-77 TO, Frederick, MD

Built 1960 Load: 15.4 t ADT: 50

SLABTOWN ROAD

Fair

Over: UNNAMED STREAM

0.40 MI NE OF MD 36, Allegany, MD

Built 1991 Load: 15.9 t ADT: 258

MOORES ROAD

Fair

Over: SAW MILL BRANCH

0.04 MILES N OF GREENE RD, Harford, MD

Built 1952 Load: 15.9 t ADT: 724

MD 717

Fair

Over: WESTERN BRANCH

0.13 MILE NORTH OF MD 4, Prince George's, MD

Built 1900 Load: 15.9 t ADT: 11,061

DUVALL BRIDGE ROAD

Fair

Over: PATUXENT RIVER

TRACT #9 / CENTRAL TRACT, Anne Arundel, MD

Built 1907 Load: 16.3 t ADT: 25

MD 695, RAMPS '1'

Fair

Over: CABIN BRANCH

0.29 MI W OF MD 10, Anne Arundel, MD

Built 1972 Load: 16.3 t ADT: 66,222

BW PARKWAY (NBL)

Fair

Over: LITTLE PATUXENT RIVER

0.8 MILES SOUTH OF MD ROU, Anne Arundel, MD

Built 1953 Load: 16.3 t ADT: 40,000

BW PARKWAY (SBL)

Fair

Over: LITTLE PATUXENT RIVER

0.8 MILES SOUTH OF MD ROU, Anne Arundel, MD

Built 1953 Load: 16.3 t ADT: 40,000

MOUNT GILEAD ROAD

Fair

Over: TRIBUTARY TO NORTH BRANC

1.28 MILES NW OF MD 30, Baltimore, MD

Built 1975 Load: 16.3 t ADT: 338

CROW ROCK ROAD

Fair

Over: MIDDLE CREEK

AT MD 17 INTERSECTION, Frederick, MD

Built 1897 Load: 16.3 t ADT: 460

SUMANTOWN ROAD

Fair

Over: CATOCTIN CREEK

1.5 MI W OLD MIDDLETOWN R, Frederick, MD

Built 1900 Load: 16.3 t ADT: 124

FRICKS CROSSING RO

Fair

Over: LITTLE YOUGHIOGHENY RIVE

0.6 M N INT GARRETT RD, Garrett, MD

Built 2000 Load: 16.3 t ADT: 138

WHITAKER MILL ROAD

Fair

Over: WINTERS RUN

1.8 MILES W OF US 1, Harford, MD

Built 1991 Load: 16.3 t ADT: 3,051

MADONNA ROAD

Fair

Over: DEER CREEK

0.02 MI S OF TELEGRAPH RD, Harford, MD

Built 1965 Load: 16.3 t ADT: 89

WOODLAWN BOULEVARD

Fair

Over: TRIB TO SOUTHWEST BRANCH

.1 MI N OF WHITE HOUSE RD, Prince George's, MD

Built 1969 Load: 16.3 t ADT: 3,980

HARRY S. TRUMAN DR

Fair

Over: TRIB. TO SOUTHWEST BR.

0.8 MI SOUTH OF MD 214, Prince George's, MD

Built 1972 Load: 16.3 t ADT: 17,480

Showing 1,151-1,200 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.