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%.

Condition Distribution

Maryland32.7%62%GoodFairPoor
Bridge inventory deck-condition mix - Maryland (FHWA NBI)

Counties (24)

Allegany 245 Anne Arundel 395 Baltimore 787 Baltimore city 380 Calvert 33 Caroline 70 Carroll 205 Cecil 194 Charles 94 Dorchester 47 Frederick 491 Garrett 139 Harford 275 Howard 310 Kent 44 Montgomery 522 Prince George's 582 Queen Anne's 88 Somerset 46 St. Mary's 50 Talbot 42 Washington 301 Wicomico 100 Worcester 82

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.

OLD SELBYSPORT RD

Poor

Over: BEAR CREEK

0.01 MI N OF WALNUT ST, Garrett, MD

Built 1920 Load: 2.7 t ADT: 30

ZION ROAD

Poor

Over: HAWLINGS RIVER

2.8 MILES NORTH OF MD 108, Montgomery, MD

Built 1930 Load: 4.5 t ADT: 2,440

ROXBURY ROAD

Poor

Over: BEAVER CREEK

0.1 MI W OF ALT US RTE 40, Washington, MD

Built 1920 Load: 7.3 t ADT: 533

TUFTON AVENUE

Poor

Over: WATERSPOUT RUN

2.63 MI. WEST MD 25, Baltimore, MD

Built 1920 Load: 7.7 t ADT: 7,735

MOHRS LANE

Poor

Over: CSX RAILROAD

0.1 MI NW OF US RTE 40, Baltimore, MD

Built 1912 Load: 9.1 t ADT: 1,600

OLD MONTGOMERY RD

Poor

Over: LITTLE PATUXENT RIVER

0.5 MI W OF US RTE 29, Howard, MD

Built 1935 Load: 10.0 t ADT: 10

All Bridges in Maryland

HOLLOW ROAD

Good

Over: LITTLE CATOCTIN CREEK

AT HARMONY RD INT, Frederick, MD

Built 1981 Load: 42.6 t ADT: 126

MURRAY HILL ROAD

Good

Over: MIDDLE PATUXENT RIVER

0.1 MI S VOLLMERHAUSEN RD, Howard, MD

Built 1988 Load: 42.6 t ADT: 3,576

STEVENS FOREST ROA

Good

Over: LITTLE PATUXENT RIVER

0.1 MI E OF US 29, Howard, MD

Built 1990 Load: 42.6 t ADT: 5,350

KIRK WOODS PARK RO

Good

Over: LITTLE TONOLOWAY CREEK

0.76 MI. W OF US 40, Washington, MD

Built 2008 Load: 42.6 t ADT: 53

U.S. ROUTE 301

Good

Over: POTOMAC RIVER

ON VIRGINIA LINE, Charles, MD

Built 2022 Load: 42.8 t ADT: 18,550

ALLENDER ROAD

Good

Over: CSX RAILROAD

0.3 MI NW PULASKI HWY, Baltimore, MD

Built 1998 Load: 43.1 t ADT: 5,607

HARFORD ROAD

Good

Over: HERRING RUN

0.25 MI S ARGONNE DRIVE, Baltimore city, MD

Built 1911 Load: 43.1 t ADT: 20,994

MD 404

Good

Over: TUCKAHOE CREEK

ON QUEEN ANNES CO LINE, Caroline, MD

Built 2016 Load: 43.1 t ADT: 20,442

MD 194

Good

Over: BIG PIPE CREEK

0.64 MILE NORTH OF MD 77, Carroll, MD

Built 2005 Load: 43.1 t ADT: 5,152

GREENMOUNT CHURCH

Good

Over: MURPHY RUN

0.3 MILES EAST OF MD 30, Carroll, MD

Built 2010 Load: 43.1 t ADT: 705

SAMS CREEK ROAD

Good

Over: SAMS CREEK

0.45 MI E OF MD RTE 31, Frederick, MD

Built 1987 Load: 43.1 t ADT: 412

FOUR SEASONS DRIVE

Good

Over: TRIBUTARY TO HA HA BRANC

0.03 MILES W OF MD 7, Harford, MD

Built 2005 Load: 43.1 t ADT: 595

SOUTH ENTRANCE ROA

Good

Over: LITTLE PATUXENT RIVER

0.08 MILE WEST OF US 29, Howard, MD

Built 2004 Load: 43.1 t ADT: 4,200

CASTLEBRIDGE ROAD

Good

Over: UNNAMED STREAM

400' N OF HOMEWOOD RD, Howard, MD

Built 1995 Load: 43.1 t ADT: 50

MD 200 (ICC) WB

Good

Over: Northwest Branch

1.40 Mi West of MD650, Montgomery, MD

Built 2010 Load: 43.1 t ADT: 32,683

VAN BUREN STREET

Good

Over: CSX RAILROAD

0.1 MILES N. OF RIVERTECH, Prince George's, MD

Built 2017 Load: 43.4 t ADT: 3,000

S SPRINGFIELD ROAD

Good

Over: BURCH BRANCH

.2 MI S OF FLORAL PARK RD, Prince George's, MD

Built 2016 Load: 43.4 t ADT: 1,924

MD 43 RAMP '3'

Good

Over: TRIB TO WHITEMARSH RUN

RAMP TO MD 7, Baltimore, MD

Built 1996 Load: 43.5 t ADT: 7,440

PADONIA ROAD

Good

Over: GOODWIN RUN

0.3 MI W OF MD RTE 45, Baltimore, MD

Built 1961 Load: 43.5 t ADT: 47,071

HAMBURG STREET

Good

Over: MTA LIGHT RAIL, MARC, &

0.8 MI. N. OF I 95, Baltimore city, MD

Built 1991 Load: 43.5 t ADT: 6,332

MD 328

Good

Over: TUCKAHOE CREEK

ON TALBOT CO LINE, Caroline, MD

Built 2012 Load: 43.5 t ADT: 6,500

SAMS CREEK ROAD

Good

Over: SAMS CREEK

ON FREDERICK CO LINE, Carroll, MD

Built 1986 Load: 43.5 t ADT: 362

NEWPORT ROAD

Good

Over: GILLIS FALLS

0.09 MI N OF HOWARD CO, Carroll, MD

Built 2001 Load: 43.5 t ADT: 86

BALLENGER CREEK PI

Good

Over: STORMWATER CHANNEL RELIE

2.27 MI. SOUTH OF I-70, Frederick, MD

Built 2012 Load: 43.5 t ADT: 2,462

MD 24 NB

Good

Over: OTTERS POINT CREEK

0.1 MILE NORTH OF US 40, Harford, MD

Built 1996 Load: 43.5 t ADT: 20,242

MD 165

Good

Over: BR OF WEST BRANCH

0.97 MILE NORTH OF MD 152, Harford, MD

Built 2004 Load: 43.5 t ADT: 7,471

SUSQUEHANNA HALL R

Good

Over: DEEP RUN

0.7 MILES S OF MD 623, Harford, MD

Built 1973 Load: 43.5 t ADT: 101

BROKEN LAND PKWY

Good

Over: LITTLE PATUXENT RIVER

0.31 MI S OF US 29, Howard, MD

Built 1992 Load: 43.5 t ADT: 32,730

MD 28

Good

Over: BATCHELLORS RUN

0.65 MILE WEST OF MD 182, Montgomery, MD

Built 1999 Load: 43.5 t ADT: 24,340

MD 109

Good

Over: BR OF LITTLE MONOCACY RI

1.74 M S OFCOMUS ROAD, Montgomery, MD

Built 2003 Load: 43.5 t ADT: 1,732

FATHER HURLEY BOUL

Good

Over: CENTURY BOULEVARD

0.2 MI SW OF JCT I-270, Montgomery, MD

Built 1995 Load: 43.5 t ADT: 14,319

FATHER HURLEY BOUL

Good

Over: CENTURY BOULEVARD

0.2 MI SW OF JCT I-270, Montgomery, MD

Built 1995 Load: 43.5 t ADT: 13,713

Ramp EN

Good

Over: MD 200 (ICC),US29, Rp SE

MD200EB Ramp EN to US29NB, Montgomery, MD

Built 2011 Load: 43.5 t ADT: 5,902

MCINTOSH ROAD

Good

Over: MCINTOSH RUN

0.9 MI N OF MD RTE 245, St. Mary's, MD

Built 1984 Load: 43.5 t ADT: 2,500

OLD FORGE ROAD

Good

Over: ANTIETAM CREEK

1.2 MI W OF MD RTE 62, Washington, MD

Built 1863 Load: 43.5 t ADT: 580

MD 86

Good

Over: SOUTH BR GUNPOWDER FALLS

0.97 MI S OF PA LINE, Carroll, MD

Built 2020 Load: 43.7 t ADT: 4,337

IS 270

Good

Over: MD 85 (Buckeystown Pike)

1.0 N OF BR NO 1007400, Frederick, MD

Built 2020 Load: 43.7 t ADT: 111,550

MD 32

Good

Over: BR OF MIDDLE PATUXENT RI

1.5 MI N OF BURNTWOODS RD, Howard, MD

Built 2020 Load: 43.7 t ADT: 29,475

Livingston Rd.

Good

Over: MD 210 NORTHBOUND

1.6 MI. S. OF IS 495, Prince George's, MD

Built 2021 Load: 43.7 t ADT: 8,050

IS 81 NB

Good

Over: POTOMAC RIVER

ON WEST VIRGINIA LINE, Washington, MD

Built 1965 Load: 43.7 t ADT: 61,300

IS 81 SB

Good

Over: POTOMAC RIVER

ON WEST VIRGINIA LINE, Washington, MD

Built 1965 Load: 43.7 t ADT: 61,300

GEORGES CREEK ROAD

Good

Over: NEFF RUN

AT CHURCH STREET, Allegany, MD

Built 2007 Load: 44.0 t ADT: 1,575

BROCK BRIDGE ROAD

Good

Over: LITTLE PATUXENT RIVER

1.0 MILE SOUTH OF MD 32, Anne Arundel, MD

Built 1994 Load: 44.0 t ADT: 5,466

CEDAR AVENUE

Good

Over: TRIBUTARY TO GWYNNS FALL

1.3 MI E OF IS 695, Baltimore, MD

Built 1984 Load: 44.0 t ADT: 60

IS 95 VIADUCT SB

Good

Over: CONRAIL YARDS

Milepost M56.7, Baltimore city, MD

Built 1982 Load: 44.0 t ADT: 68,369

BEAR RUN ROAD

Good

Over: BEAR BRANCH

2.2 MI W OF MAYBERRY RD, Carroll, MD

Built 1974 Load: 44.0 t ADT: 397

MD 144FA

Good

Over: CARROLL CREEK

0.21 M E OF MARYLAND AVE, Frederick, MD

Built 1995 Load: 44.0 t ADT: 8,541

FLAG POND ROAD

Good

Over: DOUBS BRANCH

100' EAST OF BALLENGER CR, Frederick, MD

Built 1986 Load: 44.0 t ADT: 12

MD 7

Good

Over: CSX TRANS.

0.34 MILE SOUTH OF US 40, Harford, MD

Built 1993 Load: 44.0 t ADT: 12,210

MARDIC DRIVE

Good

Over: BYNUM RUN

0.05 MI N OF SPENCEOLA PK, Harford, MD

Built 1998 Load: 44.0 t ADT: 114

Showing 4,351-4,400 of 5,527 bridges

Related

All states → | National rankings → | Understanding conditions → | Retired SD term explained →
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.

Understanding Bridge Conditions

How FHWA rates bridge condition on a 0-9 scale.

Check Your Daily Bridges

How to look up bridge condition data for bridges on your route.

Read our methodology — how this data is sourced, computed, and verified.

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.