State profile · Below median Poor share

Maryland bridge safety

Condition ratings, load ratings, and Poor-condition data for every public highway bridge in Maryland, based on the FHWA National Bridge Inventory.

5,527
Public bridges
25.9%
Good condition
4.3%
Poor condition

Data updated May 2026

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 whose lowest applicable component is rated 0-4

-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 - Poor-condition 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 by Poor-condition share (lower share = better)

States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Maryland on the same metric.

CT

Connecticut

3.95% top marginal rate
Structure
Progressive
Burden @ $100K
$4,277

TN

Tennessee

3.97% top marginal rate
Structure
Progressive
Burden @ $100K
$20,426
Selected

MD

Maryland

4.27% top marginal rate
Structure
Progressive
Burden @ $100K
$5,527

CO

Colorado

4.32% top marginal rate
Structure
Progressive
Burden @ $100K
$8,965

OR

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 the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.

All Bridges in Maryland

MD 121

Fair

Over: LITTLE SENECA LAKE

0.39 MILE NORTH OF MD 117, Montgomery, MD

Built 1984 Load: 38.1 t ADT: 3,571

IS 495

Fair

Over: Clara Barton Parkway EB

0.34 MILE EAST OF VA LINE, Montgomery, MD

Built 1963 Load: 38.1 t ADT: 228,218

IS 495

Fair

Over: CEDAR LANE

0.65 MILE EAST OF MD 355, Montgomery, MD

Built 1964 Load: 38.1 t ADT: 238,050

JONES MILL ROAD

Fair

Over: ROCK CREEK

0.1 MI S FORSYTHE AVENUE, Montgomery, MD

Built 1969 Load: 38.1 t ADT: 14,669

DAYTON STREET

Fair

Over: TRIBUTARY TO SLIGO CREEK

825 FEET EAST OF MD 97, Montgomery, MD

Built 1965 Load: 38.1 t ADT: 830

LITTLE FALLS PARKW

Fair

Over: WILLET BRANCH

0.1 MI N DORSET AVE, Montgomery, MD

Built 1958 Load: 38.1 t ADT: 16,840

FLOWER AVENUE

Fair

Over: SLIGO CREEK

0.28 MI SE OF MONT CO, Montgomery, MD

Built 1930 Load: 38.1 t ADT: 1,774

MD 201

Fair

Over: BRIER DITCH

0.11 MI N OF SARVIS AVE, Prince George's, MD

Built 1950 Load: 38.1 t ADT: 33,330

MD 202

Fair

Over: WESTERN BRANCH

0.79 MILE NORTH OF MD 193, Prince George's, MD

Built 1959 Load: 38.1 t ADT: 26,592

IS 495 RAMP 'F'

Fair

Over: PAINT BRANCH

1.11 M E OF MONT CO LINE, Prince George's, MD

Built 1967 Load: 38.1 t ADT: 319

TUCKER ROAD

Fair

Over: HENSON CREEK

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

Built 1979 Load: 38.1 t ADT: 7,120

COVENTRY PARISH RO

Fair

Over: REHOBETH BRANCH

0.3 MI S OF REHOBETH ROAD, Somerset, MD

Built 1985 Load: 38.1 t ADT: 250

PEGG ROAD

Fair

Over: BRANCH JARBOESVILLE RUN

.8 MI CHANCELLORS RUN RD, St. Mary's, MD

Built 1990 Load: 38.1 t ADT: 9,574

MD 34

Fair

Over: TRIB TO LIT ANTIETAM CRK

0.70 MILE WEST OF US 40AL, Washington, MD

Built 1957 Load: 38.1 t ADT: 6,981

MANOR CHURCH ROAD

Fair

Over: ANTIETAM CREEK

2.65 MI SE OF MD RTE 65, Washington, MD

Built 1982 Load: 38.1 t ADT: 365

MD 376

Fair

Over: AYERS CREEK

0.71 MILE WEST OF MD 611, Worcester, MD

Built 1967 Load: 38.1 t ADT: 4,122

IS 68

Fair

Over: EVITTS CREEK

0.21 M E OF BR NO 0109900, Allegany, MD

Built 1937 Load: 38.5 t ADT: 26,680

MD 295 SB

Fair

Over: AMTRAK, STONY RUN

0.14 MI S OF IS 195, Anne Arundel, MD

Built 1950 Load: 38.5 t ADT: 67,307

8TH AVENUE NW

Fair

Over: SAWMILL CREEK

0.2 MI W OF MD 3, Anne Arundel, MD

Built 1972 Load: 38.5 t ADT: 12,944

UPPER LEVEL ROADWA

Fair

Over: LOWER LEVEL ROADWAY

BWI AIRPORT, Anne Arundel, MD

Built 1977 Load: 38.5 t ADT: 11,760

MD 7

Fair

Over: LITTLE GUNPOWDER FALLS

ON HARFORD CO LINE, Baltimore, MD

Built 1928 Load: 38.5 t ADT: 8,520

MD 128

Fair

Over: SLADE RUN

3.05 MI E OF MD 30, Baltimore, MD

Built 1990 Load: 38.5 t ADT: 2,991

RUXTON ROAD

Fair

Over: JONES FALLS

0.02 MI W OF MD 25, Baltimore, MD

Built 1961 Load: 38.5 t ADT: 5,329

MT. WILSON LANE

Fair

Over: GWYNNS FALLS

0.03 MI S OF MD 400, Baltimore, MD

Built 1973 Load: 38.5 t ADT: 1,800

SOLOMONS ISLAND RD

Fair

Over: THE NARROWS

ON SOLOMONS ISLAND, Calvert, MD

Built 1958 Load: 38.5 t ADT: 4,126

ROY SHAFER ROAD

Fair

Over: CONE BRANCH

AT BENNIES HILL RD INT, Frederick, MD

Built 1982 Load: 38.5 t ADT: 105

POFFENBERGER ROAD

Fair

Over: LEWIS MILL BRANCH

0.75 MI W OF OLD MIDDLETO, Frederick, MD

Built 1982 Load: 38.5 t ADT: 32

MD 165

Fair

Over: LITTLE DEER CREEK

2.35 MILES SOUTH OF MD 24, Harford, MD

Built 1930 Load: 38.5 t ADT: 6,673

BYNUM ROAD

Fair

Over: BYNUM RUN

0.5 MILES NE OF MD 24, Harford, MD

Built 1976 Load: 38.5 t ADT: 4,310

POTEET ROAD

Fair

Over: EAST BRANCH/WINTERS RUN

0.01 M W OF PHILLIPS M RD, Harford, MD

Built 1995 Load: 38.5 t ADT: 35

KENNEDYVILLE ROAD

Fair

Over: MORGAN CREEK

0.8 MI SE OF MD RTE 213, Kent, MD

Built 2002 Load: 38.5 t ADT: 265

MD 320

Fair

Over: NORTHWEST BRANCH

0.05 MILE SOUTH OF MD 650, Prince George's, MD

Built 1910 Load: 38.5 t ADT: 21,112

IS 95/IS 495

Fair

Over: POTOMAC RIVER

ON VIRGINIA LINE, Prince George's, MD

Built 2006 Load: 38.5 t ADT: 128,275

MD 405

Fair

Over: SOUTHEAST CREEK

0.1 MILE SOUTH OF MD 19, Queen Anne's, MD

Built 1933 Load: 38.5 t ADT: 1,842

WHITON CROSSING RD

Fair

Over: POCOMOKE RIVER

0.19 MILES EAST OF MD 354, Worcester, MD

Built 1996 Load: 38.5 t ADT: 138

MD 51

Fair

Over: POTOMAC RIVER

ON WEST VIRGINIA LINE, Allegany, MD

Built 1987 Load: 39.0 t ADT: 1,502

MD 256

Fair

Over: TRACEYS CREEK

1.73 MI W OF MD 258, Anne Arundel, MD

Built 1975 Load: 39.0 t ADT: 3,355

BELL BRANCH ROAD

Fair

Over: BELL BRANCH

1.2 MI EAST OF RTE 424, Anne Arundel, MD

Built 1970 Load: 39.0 t ADT: 656

MD 25

Fair

Over: JONES FALLS

0.06 MILE SOUTH OF MD 133, Baltimore, MD

Built 1932 Load: 39.0 t ADT: 10,911

US 40

Fair

Over: STEMMERS RUN

0.39 MILES EAST OF I-695, Baltimore, MD

Built 1935 Load: 39.0 t ADT: 54,850

FRANCIS AVENUE

Fair

Over: WEST BRANCH OF HERBERT R

0.06 MI W OF OREGON AVE, Baltimore, MD

Built 1955 Load: 39.0 t ADT: 8,130

OWINGS MILLS BOULE

Fair

Over: REISTERSTOWN ROAD (MD 14

0.4 MI NW OF OWINGS MILLS, Baltimore, MD

Built 1986 Load: 39.0 t ADT: 29,024

IS 95 VIADUCT NB

Fair

Over: CONRAIL YARD

Milepost M56.9, Baltimore city, MD

Built 1980 Load: 39.0 t ADT: 64,313

I-695 IL

Fair

Over: CHEMICAL ROAD

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

Built 1972 Load: 39.0 t ADT: 21,765

MD 2 SB

Fair

Over: HUNTING CREEK

.086 MILE NORTH OF MD 263, Calvert, MD

Built 1992 Load: 39.0 t ADT: 46,798

MD 260

Fair

Over: HALL CREEK

0.32 MILE EAST OF MD 778, Calvert, MD

Built 1951 Load: 39.0 t ADT: 13,581

MD 75

Fair

Over: LITTLE PIPE CREEK

0.18 MI S OF UNION BRIDGE, Carroll, MD

Built 1922 Load: 39.0 t ADT: 4,051

US 40 EB

Fair

Over: LITTLE NORTHEAST CREEK

0.65 MILE EAST OF MD 272, Cecil, MD

Built 1939 Load: 39.0 t ADT: 14,917

US 40 WB

Fair

Over: LITTLE NORTHEAST CREEK

0.65 MILE EAST OF MD 272, Cecil, MD

Built 1939 Load: 39.0 t ADT: 14,332

MD 327

Fair

Over: AMTRAK

0.17 MILE EAST OF MD 7B, Cecil, MD

Built 1942 Load: 39.0 t ADT: 499

Showing 2,251-2,300 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.

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). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.