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 97

Fair

Over: BIG PIPE CREEK

3.35 MILE NORTH OF MD 496, Carroll, MD

Built 1934 Load: 22.2 t ADT: 15,340

SNOWDEN RUN ROAD

Fair

Over: SNOWDEN RUN

1.89 MI W OF MINERAL HILL, Carroll, MD

Built 1974 Load: 22.2 t ADT: 503

US 15 NBR

Fair

Over: FISHING CREEK

0.07 MI N OF POWELL RD, Frederick, MD

Built 1972 Load: 22.2 t ADT: 43,080

HEAPS SCHOOL ROAD

Fair

Over: BROAD CREEK

0.3 MILES N OF MD 543, Harford, MD

Built 1965 Load: 22.2 t ADT: 405

BOTTOM ROAD

Fair

Over: LITTLE GUNPOWDER FALLS

1.8 MI NE OF FORK ROAD, Baltimore, MD

Built 1886 Load: 22.7 t ADT: 223

WESTERN RUN ROAD

Fair

Over: BLACKROCK RUN

0.1 MI E OF FALLS RD, Baltimore, MD

Built 1974 Load: 22.7 t ADT: 1,230

STABLERS CHURCH RO

Fair

Over: LITTLE FALLS

0.8 MI W OF YORK ROAD, Baltimore, MD

Built 1975 Load: 22.7 t ADT: 604

MARRIOTTSVILLE RD

Fair

Over: NORTH BRANCH OF PATAPSCO

AT BALT-CARROLL CO LINE, Baltimore, MD

Built 1976 Load: 22.7 t ADT: 5,500

PATTERSON AVENUE

Fair

Over: TRIBUTARY TO GWYNNS FALL

0.75 MI NE OF LIBERTY RD, Baltimore, MD

Built 1960 Load: 22.7 t ADT: 12,265

RIPPLE ROAD

Fair

Over: TRIBUTARY TO GWYNNS FALL

0.1 MI S OF LYNN HAVEN DR, Baltimore, MD

Built 1954 Load: 22.7 t ADT: 8,752

I-895

Fair

Over: CSXT RR

Milepost M7.65, Baltimore city, MD

Built 1957 Load: 22.7 t ADT: 72,510

BOYCE MILL ROAD

Fair

Over: GRAVELLY BRANCH

1.8 MI N OF MD RTE 314, Caroline, MD

Built 1919 Load: 22.7 t ADT: 2,025

DOLLYHYDE ROAD

Fair

Over: NORTH FORK LINGANORE CRK

0.6 MI N OF EMERS BURR RD, Frederick, MD

Built 1960 Load: 22.7 t ADT: 151

MD 135

Fair

Over: LITTLE YOUGHIOGHENY RIVE

0.12 MILE WEST OF MD 560, Garrett, MD

Built 1959 Load: 22.7 t ADT: 10,972

PARKLAWN ENTRANCE

Fair

Over: ROCK CREEK

RT 28 SOUTH OF ROCKVILLE, Montgomery, MD

Built 1950 Load: 22.7 t ADT: 27

KENT VILLAGE DRIVE

Fair

Over: CATTAIL BRANCH

0.35 MI S OF MD 202, Prince George's, MD

Built 1968 Load: 22.7 t ADT: 4,536

4 TH STREET

Fair

Over: BALD HILL BRANCH

0.12 MI W OF MAIN STREET, Prince George's, MD

Built 1964 Load: 22.7 t ADT: 608

29TH STREET

Fair

Over: TRIB TO NORTHWEST BRANCH

0.05 MI S OF ARUNDEL ROAD, Prince George's, MD

Built 1962 Load: 22.7 t ADT: 249

MD ROUTE 450

Fair

Over: BW PARKWAY

0.3 MILES NORTH OF MD ROU, Prince George's, MD

Built 1953 Load: 22.7 t ADT: 50,300

GAPLAND ROAD

Fair

Over: ISRAEL CREEK

0.08 MI W OF MD RTE 67, Washington, MD

Built 1922 Load: 22.7 t ADT: 160

MILLBROOK ROAD

Fair

Over: LITTLE ANTIETAM CREEK

0.4 MI W OF MD RTE 67, Washington, MD

Built 1965 Load: 22.7 t ADT: 1,467

US 13 BUS

Fair

Over: EAST BRANCH WICOMICO RIV

0.18 MILE S OF US 50BU, Wicomico, MD

Built 1937 Load: 22.7 t ADT: 22,900

CARROLL ROAD

Fair

Over: CARROLL BRANCH

0.5 MI S OF SPARKS RD, Baltimore, MD

Built 1879 Load: 23.1 t ADT: 2,534

KIDDS SCHOOLHOUSE

Fair

Over: PRETTYBOY RESERVOIR

0.7 MI E BECKLEYS RD, Baltimore, MD

Built 1932 Load: 23.1 t ADT: 124

MD 231

Fair

Over: PATUXENT RIVER

ON CHARLES CO LINE, Calvert, MD

Built 1952 Load: 23.1 t ADT: 12,021

BAUMGARDNER ROAD

Fair

Over: PINEY CREEK

0.70 MI N OF KEYSVILLE RD, Carroll, MD

Built 1982 Load: 23.1 t ADT: 99

GRIMVILLE ROAD

Fair

Over: GILLIS FALLS

0.04 MI N OF FLAG MARSH, Carroll, MD

Built 1981 Load: 23.1 t ADT: 280

GAITHER ROAD

Fair

Over: SOUTH BRANCH PATAPSCO RI

ON HOWARD COUNTY LINE, Carroll, MD

Built 1978 Load: 23.1 t ADT: 1,282

MD 213

Fair

Over: BOHEMIA RIVER

2.3 MILES SOUTH OF MD 310, Cecil, MD

Built 1988 Load: 23.1 t ADT: 6,317

MD 34

Fair

Over: ANTIETAM CREEK

1.2 MILES EAST OF MD 65, Washington, MD

Built 1958 Load: 23.1 t ADT: 4,951

POINT OF ROCKS ROA

Fair

Over: C&O CANAL

0.3 MILES FROM POTOMAC RI, Frederick, MD

Built 1890 Load: 23.2 t ADT: 159

LOWER LEVEL ROADWA

Fair

Over: PEDESTRIAN TUNNEL

BWI HOURLY GARAGE TO TERM, Anne Arundel, MD

Built 1976 Load: 23.6 t ADT: 22,093

MD 129

Fair

Over: NORTH BRANCH

1.81 MI N OF MD 130, Baltimore, MD

Built 1900 Load: 23.6 t ADT: 900

HOLLIFIELD ROAD

Fair

Over: PATAPSCO RIVER

0.1 MI S JOHNNYCAKE ROAD, Baltimore, MD

Built 1934 Load: 23.6 t ADT: 11,453

WESTCHESTER AVENUE

Fair

Over: NO. 9 TROLLEY TRAIL

0.2 MI N FREDERICK RD, Baltimore, MD

Built 1900 Load: 23.6 t ADT: 1,741

MD 311

Fair

Over: BROADWAY BRANCH

1.47 MILE NORTH OF MD 287, Caroline, MD

Built 1950 Load: 23.6 t ADT: 3,460

MD 75

Fair

Over: SAMS CREEK

ON FREDERICK CO LINE, Carroll, MD

Built 1972 Load: 23.6 t ADT: 2,151

MD 140

Fair

Over: BIG PIPE CREEK

0.91 MILE SOUTH OF MD 832, Carroll, MD

Built 1964 Load: 23.6 t ADT: 13,070

MD 144FA & CO RD

Fair

Over: LONG BRANCH

0.504 M W OF CAR. CO LINE, Frederick, MD

Built 1954 Load: 23.6 t ADT: 13,511

MD 383

Fair

Over: CATOCTIN CREEK

1.52 MILES N OF MD 180, Frederick, MD

Built 1953 Load: 23.6 t ADT: 1,550

UTICA ROAD

Fair

Over: FISHING CREEK

0.12 MI W OLD FREDERICK R, Frederick, MD

Built 1860 Load: 23.6 t ADT: 298

ACCIDENT FRIENDSVI

Fair

Over: BEAR CREEK

0.01 MI S ACC FRNDVLLE RD, Garrett, MD

Built 2002 Load: 23.6 t ADT: 120

MD 136

Fair

Over: DEER CREEK

2.64 MILES SOUTH OF US 1, Harford, MD

Built 1931 Load: 23.6 t ADT: 9,984

MD 382

Fair

Over: MATAPONI CREEK

0.08 MI S OF MATTAPONI RD, Prince George's, MD

Built 1930 Load: 23.6 t ADT: 4,500

MARYLAND RT.458-SI

Fair

Over: SUITLAND PARKWAY

1.8 MILES FROM SUITLAND R, Prince George's, MD

Built 1943 Load: 23.6 t ADT: 42,725

L.Q. POWELL ROAD

Fair

Over: EAST CREEK

0.5 MI W OF TULLS CORNER, Somerset, MD

Built 1975 Load: 23.6 t ADT: 210

US 40

Fair

Over: LICKING CREEK

0.26 MILE EAST OF IS 70, Washington, MD

Built 1938 Load: 23.6 t ADT: 1,455

US 50

Fair

Over: SINEPUXENT BAY

0.17 MILE WEST OF MD 528, Worcester, MD

Built 1942 Load: 23.9 t ADT: 33,920

MD 173

Fair

Over: STONEY CREEK

0.16 MILE SOUTH OF MD 642, Anne Arundel, MD

Built 1947 Load: 24.0 t ADT: 15,071

MD 181(SIXTH ST)

Fair

Over: SPA CREEK

ANNAPOLIS MD., Anne Arundel, MD

Built 1946 Load: 24.0 t ADT: 19,251

Showing 1,301-1,350 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.

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.