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 261 (BAY AVENUE

Good

Over: BRANCH OF CHESAPEAKE BAY

0.28 MI. N OF 7TH ST., Calvert, MD

Built 2021 Load: 71.6 t ADT: 1,400

CLOVERFIELD DRIVE

Good

Over: TRIBUTARY OF BYNUM RUN

0.1 MI. E. of Tyrell Ct, Harford, MD

Built 2023 Load: 71.6 t ADT: 250

RIVER ROAD

Good

Over: ROCKBURN BRANCH

AT ROCKBURN RD, Howard, MD

Built 2022 Load: 71.6 t ADT: 250

IS 68 RAMPS 1 & 2

Good

Over: BRADDOCK RUN

N OF MD 53, Allegany, MD

Built 1972 Load: 71.7 t ADT: 703

PEARRE ROAD

Good

Over: CLEMSON BRANCH

0.5 MI E OF CLEMSONVILLE, Frederick, MD

Built 1982 Load: 71.7 t ADT: 62

BLOOMFIELD ROAD

Good

Over: TUSCARORA CREEK

0.1 MI N OF OPOSSUMTWN PK, Frederick, MD

Built 1982 Load: 71.7 t ADT: 439

SANDS ROAD

Good

Over: FERRY BRANCH

0.2 MI S OF MD 422, Anne Arundel, MD

Built 1960 Load: 72.1 t ADT: 2,689

OLD MIDDLETOWN RD

Good

Over: HOLLOW CREEK

0.34 MI SOUTH OF MD 17, Frederick, MD

Built 1974 Load: 72.1 t ADT: 966

OLDE MILL RUN ROAD

Good

Over: MD200 (ICC)

0.7 mi E OF REDLAND RD, Montgomery, MD

Built 2010 Load: 72.1 t ADT: 1,073

MD 564

Good

Over: AMTRAK

0.03 MILE S OF MD 564C, Prince George's, MD

Built 1994 Load: 72.1 t ADT: 8,941

STAN FEY DRIVE

Good

Over: MOUNT NEBO BRANCH

0.21 MI N OF MD RTE 214, Prince George's, MD

Built 2001 Load: 72.1 t ADT: 204

BLACK ROCK ROAD

Good

Over: SOUTH BRANCH GUNPOWDER F

150 FT N OF TRACEYS MILL, Carroll, MD

Built 2001 Load: 72.6 t ADT: 228

SHADY LANE

Good

Over: DORSEY BRANCH

0.5 MI N OF SHARP RD, Howard, MD

Built 2011 Load: 72.6 t ADT: 1,300

EASTERDAY ROAD

Good

Over: LITTLE CATOCTIN CREEK

0.2 MI N OF WOODLAND WAY, Frederick, MD

Built 1982 Load: 73.0 t ADT: 90

MD 32 EBR

Good

Over: MIDDLE PATUXENT RIVER

0.89 MILE NORTH OF US 29, Howard, MD

Built 1995 Load: 73.0 t ADT: 61,442

ESWORTHY ROAD

Good

Over: MUDDY BRANCH

AT QUERY MILL ROAD, Montgomery, MD

Built 1999 Load: 73.0 t ADT: 3,639

MCNAIR ROAD

Good

Over: DORSEY CREEK

0.3 KM E OF DECATUR AVE, Anne Arundel, MD

Built 2011 Load: 73.1 t ADT: 4,400

BEACH DRIVE

Good

Over: SILVER CREEK

0.4 MILES EAST OF MD 185, Montgomery, MD

Built 2022 Load: 73.2 t ADT: 4,900

AIRPORT EXIT ROAD

Good

Over: AIRPORT RETURN RAMP

BWI AIRPORT, Anne Arundel, MD

Built 1992 Load: 73.5 t ADT: 20,000

MD 213

Good

Over: BIG ELK CREEK

0.1 MILE SOUTH OF MD 7D, Cecil, MD

Built 1999 Load: 73.5 t ADT: 22,306

MD 97

Good

Over: PATUXENT RIVER

ON MONTGOMERY CO LINE, Howard, MD

Built 2000 Load: 73.5 t ADT: 13,200

KINGSBROOK DRIVE

Good

Over: KING BRANCH

.1 MI S. OF CORPORATE DR, Frederick, MD

Built 1992 Load: 73.9 t ADT: 2,500

BARNES ROAD

Good

Over: WELDON CREEK

0.9 MI S OF OAK ORCHRD RD, Frederick, MD

Built 1979 Load: 73.9 t ADT: 216

MD 7

Good

Over: JAMES RUN

0.28 MILE NORTH OF MD 136, Harford, MD

Built 2014 Load: 73.9 t ADT: 12,500

PARK CIRCLE DRIVE

Good

Over: DEEP RUN

0.4 MI N MD 176 HO/AA CO., Howard, MD

Built 1990 Load: 73.9 t ADT: 870

US 40 EBR

Good

Over: LITTLE GUNPOWDER FALLS

ON HARFORD CO LINE, Baltimore, MD

Built 1935 Load: 74.2 t ADT: 14,805

US 40 WBR

Good

Over: LITTLE GUNPOWDER FALLS

ON HARFORD CO LINE, Baltimore, MD

Built 1935 Load: 74.2 t ADT: 14,805

MD 943

Good

Over: GOODWIN RUN

0.28 MILE EAST OF IS 83, Baltimore, MD

Built 1993 Load: 74.4 t ADT: 25,470

MD 943

Good

Over: GOODWIN RUN

0.28 MILE EAST OF IS 83, Baltimore, MD

Built 1993 Load: 74.4 t ADT: 25,470

SPRING AVENUE

Good

Over: TRIBUTARY TO REDHOUSE CR

0.2 MI NW OF MD 7, Baltimore, MD

Built 2005 Load: 74.4 t ADT: 115

ROCKLAND ROAD

Good

Over: LITTLE PIPE CREEK

0.01 MI N OF ROOPS MIL RD, Carroll, MD

Built 1997 Load: 74.4 t ADT: 89

LAWNDALE ROAD

Good

Over: NORTH BRANCH PATAPSCO RI

0.5 MI. W. EMORY ROAD, Carroll, MD

Built 1995 Load: 74.4 t ADT: 1,582

SERENADE LANE

Good

Over: TRIBUTARY TO PISCATAWAY

0.2 MI E OF SUMMIT CK DR, Prince George's, MD

Built 1998 Load: 74.4 t ADT: 1,192

BEN OAKS DRIVE

Good

Over: PERSIMMON CREEK

0.4 M NE OF MD 235, St. Mary's, MD

Built 2009 Load: 74.4 t ADT: 978

INDIAN SPRINGS RD

Good

Over: LANES RUN

1.3 MI N OF US RTE 40, Washington, MD

Built 1940 Load: 74.4 t ADT: 295

MD 355

Good

Over: RELOCATED RANDOLPH ROAD

2.5 MI N. OF I-495, Montgomery, MD

Built 2009 Load: 74.5 t ADT: 60,000

OPESSA STREET

Good

Over: SEVEN SPRINGS RUN

1.15 MILES E OF MD 51, Allegany, MD

Built 2009 Load: 74.8 t ADT: 682

DORSEY RUN ROAD

Good

Over: TRIB. TO PATUXENT RIVER

0.25 MI. SOUTH OF MD32, Anne Arundel, MD

Built 2008 Load: 74.8 t

MOUNT VISTA ROAD

Good

Over: TRIBUTARY TO GUNPOWDER F

1.28 MI E OF US RTE 1, Baltimore, MD

Built 1984 Load: 74.8 t ADT: 1,713

KIRKS MILL LANE

Good

Over: NORTHEAST CREEK

0.71 MI N OF MD 274, Cecil, MD

Built 2003 Load: 74.8 t ADT: 546

MD 118

Good

Over: CSX TRANSPORTATION

0.98 MILE N OF MD 117, Montgomery, MD

Built 1998 Load: 74.8 t ADT: 25,451

AVERY ROAD

Good

Over: ROCK CREEK

0.75 MI N OF JCT SR 28, Montgomery, MD

Built 1994 Load: 74.8 t ADT: 3,894

WATER STREET ROAD

Good

Over: ISRAEL CREEK

0.6 MI S OF DAYSVILLE RD, Frederick, MD

Built 2006 Load: 75.3 t ADT: 1,100

US 219

Good

Over: DEEP CREEK LAKE

3.88 MILE SOUTH OF MD 42, Garrett, MD

Built 1987 Load: 75.3 t ADT: 10,016

BRIERHILL DRIVE

Good

Over: BYNUM RUN

0.4 MILES S OF MD 22, Harford, MD

Built 1987 Load: 75.3 t ADT: 9,278

MD 201 SB

Good

Over: AMTRAK,SER RD,BEAVERDAM

0.16 MILE SOUTH OF US 50, Prince George's, MD

Built 2008 Load: 75.3 t ADT: 132,060

NORBECK RD & NORWO

Good

Over: NORTHWEST BRANCH

0.7 MILES EAST OF MD 182, Montgomery, MD

Built 2002 Load: 75.7 t ADT: 20,520

MD 202

Good

Over: COLLINGTON BRANCH

0.03 MILE NORTH OF MD 725, Prince George's, MD

Built 1992 Load: 75.7 t ADT: 17,642

RITCHIE MARLBORO R

Good

Over: CABIN BRANCH

2.91 MILES S OF IS 495, Prince George's, MD

Built 2009 Load: 75.7 t ADT: 15,750

US 220

Good

Over: MASON ROAD

0.82 MILE NORTH OF I-68, Allegany, MD

Built 1999 Load: 76.2 t ADT: 3,841

Showing 4,951-5,000 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.