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 299

Fair

Over: JACOBS CREEK

1.27 MILES S OF MD 290, Kent, MD

Built 1938 Load: 36.3 t ADT: 1,272

US 1 SB

Fair

Over: PATUXENT RIVER

ON HOWARD CO LINE, Prince George's, MD

Built 1970 Load: 36.3 t ADT: 16,752

MD 193

Fair

Over: NORTHWEST BRANCH

0.37 MILE WEST OF MD 193B, Prince George's, MD

Built 1956 Load: 36.3 t ADT: 29,880

I-495 O.L.

Fair

Over: AMTRAK

0.18 MILE SOUTH OF MD 450, Prince George's, MD

Built 1964 Load: 36.3 t ADT: 226,100

MD 5 NB

Fair

Over: PISCATAWAY CREEK

2.13 MILES N OF MD 373, Prince George's, MD

Built 1969 Load: 36.3 t ADT: 32,251

EAST MAPLE AVENUE

Fair

Over: INDIAN CREEK

0.03 MI NE OF SYCAMORE RD, Prince George's, MD

Built 1984 Load: 36.3 t ADT: 875

OLD ARDWICK-ARDMOR

Fair

Over: TRIB TO BALD HILL BRANCH

1.04 MILES E OF IS 95, Prince George's, MD

Built 1964 Load: 36.3 t ADT: 5,463

S LANDOVER ACCESS

Fair

Over: BEAVERDAM CREEK

0.5 MI N MD 202, Prince George's, MD

Built 1979 Load: 36.3 t ADT: 853

N LANDOVER ACCESS

Fair

Over: BEAVERDAM CREEK

0.5 MI N MD 202, Prince George's, MD

Built 1979 Load: 36.3 t ADT: 853

MD 363

Fair

Over: S BRANCH OF ROCK CREEK

0.21 M E OF EARL WEBST RD, Somerset, MD

Built 1977 Load: 36.3 t ADT: 2,245

US 13 NB

Fair

Over: BACK CREEK

0.19 MILE SOUTH OF MD 413, Somerset, MD

Built 1934 Load: 36.3 t ADT: 13,630

IS 70 WB

Fair

Over: CRYSTAL FALLS DRIVE

1.98 MILES WEST OF MD 66, Washington, MD

Built 1968 Load: 36.3 t ADT: 58,600

KEMPS MILL ROAD

Fair

Over: CONOCOCHEAGUE CREEK

0.85 W OF WALNUT POINT RD, Washington, MD

Built 1976 Load: 36.3 t ADT: 1,187

US 13 SB

Fair

Over: LEONARD MILL POND

0.4 MILE SOUTH OF MD 675B, Wicomico, MD

Built 1952 Load: 36.3 t ADT: 38,793

NINEPIN BRANCH RD

Fair

Over: NINEPIN BRANCH

0.42 MI S OF MD 374, Worcester, MD

Built 1994 Load: 36.3 t ADT: 172

MD 51

Fair

Over: CSX TRANS., MD 61

0.40 MI E OF MD 51A, Allegany, MD

Built 1965 Load: 36.7 t ADT: 14,721

MD 140

Fair

Over: GWYNNS FALLS

0.20 MI N OF MD 940, Baltimore, MD

Built 1973 Load: 36.7 t ADT: 33,480

MD 41

Fair

Over: TRIB TO HERRING RUN

0.4 M N OF TAYLOR AVENUE, Baltimore, MD

Built 1963 Load: 36.7 t ADT: 31,890

IS 95

Fair

Over: WEST BRANCH HERBERT RUN

0.22 MILE SOUTH OF US 1, Baltimore, MD

Built 1969 Load: 36.7 t ADT: 176,834

HARTLEY MILL ROAD

Fair

Over: LONG GREEN CREEK

0.2 MI NW OF HARFORD RD, Baltimore, MD

Built 1975 Load: 36.7 t ADT: 306

DEANWOOD ROAD

Fair

Over: TRIBUTARY TO HERRING RUN

0.2 MI E OF MD RTE 542, Baltimore, MD

Built 1966 Load: 36.7 t ADT: 4,715

MD 97

Fair

Over: SOUTH BRANCH PATAPSCO RI

ON HOWARD CO LINE, Carroll, MD

Built 1973 Load: 36.7 t ADT: 8,770

OLD TELEGRAPH ROAD

Fair

Over: BACK CREEK

0.6 MI S OF MD 286, Cecil, MD

Built 1930 Load: 36.7 t ADT: 525

MD 75

Fair

Over: LINGANORE CREEK

0.73 MI N OF MD 75FC, Frederick, MD

Built 1968 Load: 36.7 t ADT: 4,752

CRELLIN MINE ROAD

Fair

Over: SNOWY CREEK

0.2 MI WEST OF CRELLIN ST, Garrett, MD

Built 1960 Load: 36.7 t ADT: 35

HUMBERSON ROAD

Fair

Over: BUFFALO RUN

.5 MI NW OLD GOOD HOPE RD, Garrett, MD

Built 1935 Load: 36.7 t ADT: 133

US 29 SB

Fair

Over: MIDDLE PATUXENT RIVER

1.05 MILES SOUTH OF MD 32, Howard, MD

Built 1970 Load: 36.7 t ADT: 52,913

MD 97

Fair

Over: CATTAIL CREEK

1.31 MILES N OF MONT CO, Howard, MD

Built 1927 Load: 36.7 t ADT: 13,200

LAKE POTOMAC DRIVE

Fair

Over: WATTS BRANCH

0.1 MI N OF JCT SR 190, Montgomery, MD

Built 1985 Load: 36.7 t ADT: 139

US 50 WB

Fair

Over: SOUTH BRANCH SKIPTON CRE

0.66 MILE WEST OF MD 662B, Talbot, MD

Built 1948 Load: 36.7 t ADT: 31,938

US 40

Fair

Over: LITTLE BEAVER CREEK

1.54 MILES EAST OF MD 66, Washington, MD

Built 1936 Load: 36.7 t ADT: 5,972

HANGING ROCK ROAD

Fair

Over: LANES RUN

0.15 MI N OF LANES RUN RD, Washington, MD

Built 1984 Load: 36.7 t ADT: 340

TWIN ARCH ROAD

Fair

Over: SOUTH BR PATAPSCO RIVER

ON HOWARD COUNTY LINE, Carroll, MD

Built 1900 Load: 36.9 t ADT: 98

US 113

Fair

Over: PURNELL BRANCH

0.73 MILE NORTH OF MD 365, Worcester, MD

Built 1975 Load: 36.9 t ADT: 10,491

LOCUST GROVE ROAD

Fair

Over: WILLS CREEK

AT US 40 ALT, Allegany, MD

Built 1900 Load: 37.2 t ADT: 142

MD 648E

Fair

Over: MARLEY CREEK

0.11 MI S OF MD 270, Anne Arundel, MD

Built 1976 Load: 37.2 t ADT: 19,703

IS 95 RAMP H

Fair

Over: OLD ANNAN RD,MIDDLE BR

0.3 MI E RUSSELL ST, Baltimore city, MD

Built 1979 Load: 37.2 t ADT: 35,059

IS 895

Fair

Over: BOSTON STREET

MILE POINT 11.53, Baltimore city, MD

Built 1957 Load: 37.2 t ADT: 77,721

IS 895

Fair

Over: AMTRAK, NSRR & CSXT

Milepost M12.86, Baltimore city, MD

Built 1957 Load: 37.2 t ADT: 72,034

MD 313

Fair

Over: SPRING BRANCH

2.33 MILE SOUTH OF MD 314, Caroline, MD

Built 1955 Load: 37.2 t ADT: 7,160

SPRINGDALE RD

Fair

Over: LITTLE PIPE CREEK

1.09 MILES N OF MD 31, Carroll, MD

Built 1900 Load: 37.2 t ADT: 457

MD 273

Fair

Over: LITTLE ELK CREEK

1.03 MILE WEST OF MD 213, Cecil, MD

Built 1973 Load: 37.2 t ADT: 8,002

MD 234

Fair

Over: MIRANT POWER COMPANY

0.19 MILE EAST OF US 301, Charles, MD

Built 1967 Load: 37.2 t ADT: 6,741

MD 257

Fair

Over: CSX TRANS

0.08 MILE EAST OF US 301, Charles, MD

Built 1967 Load: 37.2 t ADT: 6,290

BILLINGSLEY ROAD

Fair

Over: MATTAWOMAN CREEK

1.5 MI E OF MD RTE 224, Charles, MD

Built 1984 Load: 37.2 t ADT: 7,843

SOUTH MARKET STREE

Fair

Over: CARROLL CREEK

510' SOUTH OF MD 144, Frederick, MD

Built 1988 Load: 37.2 t ADT: 8,900

IS 95 SB

Fair

Over: LITTLE PATUXENT RIVER

0.46 MILE SOUTH OF MD 32, Howard, MD

Built 1971 Load: 37.2 t ADT: 104,355

I-895 NB

Fair

Over: B&O RR,COUNTY ROADS

Milepost 0.7, Howard, MD

Built 1972 Load: 37.2 t ADT: 7,203

CLARA BARTON PARKW

Fair

Over: LITTLE FALLS BRANCH

4.5 MILES SOUTH OF I-495., Montgomery, MD

Built 1961 Load: 37.2 t ADT: 16,120

4TH STREET

Fair

Over: TRIB TO PATUXENT RIVER

0.1 MI SOUTH OF MD 198 EB, Prince George's, MD

Built 1950 Load: 37.2 t ADT: 1,240

Showing 2,151-2,200 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.

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.