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

HARRIS MILL ROAD

Poor

Over: LITTLE DEER CREEK

0.12 MI E OF LENTZ RD, Baltimore, MD

Built 1920 Load: 20.4 t ADT: 734

HURLEY AVENUE

Poor

Over: WATTS BRANCH TRIBUTARY

0.1 MI S OF JCT SR 28, Montgomery, MD

Built 1969 Load: 20.4 t ADT: 5,724

HALFWAY BOULEVARD

Poor

Over: NORFOLK SOUTHERN RAILROA

0.64 MI E OF IS 81, Washington, MD

Built 1967 Load: 20.4 t ADT: 21,909

TWILLEYS BRIDGE RD

Poor

Over: NASSAWANGO CREEK

3 MI S OF MD RTE 350, Wicomico, MD

Built 1951 Load: 20.9 t ADT: 59

SNYDERS LANDING AC

Poor

Over: C&O CANAL

2.0 miles west of Sharpsb, Washington, MD

Built 1969 Load: 21.1 t ADT: 212

TAYLORS LANDING AC

Poor

Over: C&O CANAL

0.1 miles from Taylors La, Washington, MD

Built 1969 Load: 21.1 t ADT: 530

FREDERICK ROAD

Poor

Over: HUNTING CREEK

0.2 MI SW OF MD 77, Frederick, MD

Built 1928 Load: 21.3 t ADT: 1,163

SANDCHAIN ROAD

Poor

Over: LITTLE PATUXENT RIVER

.03 MI W OF YOUNGHEART, Howard, MD

Built 1972 Load: 21.3 t ADT: 1,209

PHOENIX ROAD

Poor

Over: GUNPOWDER FALLS

1.3 MI E YORK RD, Baltimore, MD

Built 1922 Load: 21.8 t ADT: 2,132

HARRY S TRUMAN DRI

Poor

Over: SOUTHWEST BRANCH

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

Built 1974 Load: 21.8 t ADT: 16,141

DOUBLE HILL ROAD

Poor

Over: WATTS CREEK

0.47 MI NE OF MD 404, Caroline, MD

Built 1913 Load: 22.2 t ADT: 570

MILL RUN ROAD

Poor

Over: MILL RUN

1.2 M NE FRNDSVLLEADDISON, Garrett, MD

Built 1984 Load: 22.2 t ADT: 27

STABLERS CHURCH RO

Poor

Over: LITTLE FALLS

1.0 MI W OF YORK RD, Baltimore, MD

Built 1975 Load: 22.7 t ADT: 690

CARROLLTON ROAD

Poor

Over: EAST BRANCH PATAPSCO RIV

0.59 MI E OF RIDGE ROAD, Carroll, MD

Built 1972 Load: 22.7 t ADT: 590

TRINITY CHURCH RD

Poor

Over: GILBERT SWAMP RUN

2.05 MILES S OF MD 6, Charles, MD

Built 1927 Load: 22.7 t ADT: 600

MARTINSBURG ROAD

Poor

Over: POTOMAC RIVER TRIBUTARY

1.2 MI N OF WHITES FERRY, Montgomery, MD

Built 1925 Load: 22.7 t ADT: 1,322

SPARKS ROAD

Poor

Over: GUNPOWDER FALLS

0.5 MI E OF YORK RD, Baltimore, MD

Built 1888 Load: 23.1 t ADT: 1,100

TEMPLE HILL ROAD

Poor

Over: TINKERS CREEK

1.91 MILES N OF MD 223, Prince George's, MD

Built 1960 Load: 23.6 t ADT: 13,216

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

SMITH ISLAND ROAD

Poor

Over: SHANKS CREEK

0.5 MI N OF RHODES POINT, Somerset, MD

Built 1984 Load: 25.4 t ADT: 55

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

PATAPSCO ROAD

Poor

Over: EAST BR PATAPSCO RIVER

0.55 MI W OF WESLEY ROAD, Carroll, MD

Built 1900 Load: 28.6 t ADT: 171

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

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.

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.