State profile · Below national median SD

Maryland bridge safety

Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in Maryland — drawn straight from the FHWA National Bridge Inventory.

5,527
Public bridges
25.9%
Good condition
4.3%
Poor condition
4.3%
Structurally deficient

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 rated 0-4

Structurally Deficient

4.3%

236 bridges flagged for repair priority

-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 — Structurally deficient 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 on the structurally deficient leaderboard (lower share = better)

States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below Maryland on the same metric.

09

Connecticut

3.95% top marginal rate
Structure
Progressive
Burden @ $100K
$4,277

47

Tennessee

3.97% top marginal rate
Structure
Progressive
Burden @ $100K
$20,426
Selected

24

Maryland

4.27% top marginal rate
Structure
Progressive
Burden @ $100K
$5,527

08

Colorado

4.32% top marginal rate
Structure
Progressive
Burden @ $100K
$8,965

41

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 composite NBI rating. Each is inspected at least every 24 months.

All Bridges in Maryland

NEW CUT ROAD

Good

Over: SEVERN RUN

2.4 MILES NORTH OF MD 32, Anne Arundel, MD

Built 2001 Load: 76.2 t ADT: 10,126

MD 7

Good

Over: WHITEMARSH RUN

0.2 M E OF CAMPBELL BLVD, Baltimore, MD

Built 2002 Load: 76.2 t ADT: 16,450

IS 83

Good

Over: OREGON BRANCH

0.41 MI N OF BEAVERDAM RD, Baltimore, MD

Built 1949 Load: 76.2 t ADT: 85,051

HOLLY ROAD

Good

Over: FORGE BRANCH

0.4 MI NE OF GREENSBORO, Caroline, MD

Built 1996 Load: 76.2 t ADT: 468

OLD HAGERSTOWN RD

Good

Over: LITTLE CATOCTIN CREEK

0.25 MI N OF ALT. 40, Frederick, MD

Built 1994 Load: 76.2 t ADT: 938

FATHER HURLEY BOUL

Good

Over: CSXT RAILROAD

NORTH OF MD 118, Montgomery, MD

Built 2010 Load: 76.2 t ADT: 588

KELOX ROAD

Good

Over: TRIBUTARY TO GWYNNS FALL

0.1 MI NE of SR 26, Baltimore, MD

Built 2010 Load: 76.6 t ADT: 812

MD 140

Good

Over: PINEY CREEK

0.85 MI N OF TANEYTOWN, Carroll, MD

Built 1997 Load: 76.6 t ADT: 5,340

LARK BROWN ROAD

Good

Over: DORSEY RUN

0.04 MI W OF MD RTE 108, Howard, MD

Built 1991 Load: 76.6 t ADT: 6,274

HOMEWOOD ROAD

Good

Over: MIDDLE PATUXENT RIVER

1 MI W OF MD RTE 108, Howard, MD

Built 2000 Load: 76.6 t ADT: 5,182

GOSHEN ROAD

Good

Over: CABIN BRANCH

0.2 MI N OF CENTERWAY RD, Montgomery, MD

Built 2004 Load: 76.6 t ADT: 25,587

MD 550

Good

Over: OWENS CREEK

0.82 MILE NORTH OF US 15, Frederick, MD

Built 1996 Load: 77.1 t ADT: 7,221

NEW DESIGN ROAD

Good

Over: ARUNDEL BRANCH

.25 Mi. N. of Corporate D, Frederick, MD

Built 1998 Load: 77.1 t ADT: 17,000

ROXBURY ROAD

Good

Over: DORSEY BRANCH

0.5 MI E OF MD RTE 97, Howard, MD

Built 2002 Load: 77.1 t ADT: 1,079

US 40 SCN

Good

Over: SNIB HOLLOW RUN

0.43 M E OF BR NO 0103700, Allegany, MD

Built 2003 Load: 78.0 t ADT: 281

MD 133

Good

Over: SLAUGHTERHOUSE BRANCH

0.11 MI W OF MD 25, Baltimore, MD

Built 1990 Load: 78.0 t ADT: 6,191

LOCH RAVEN DRIVE

Good

Over: DULANEY VALLEY BRANCH

3 MI N CROMWELL BRDG RD, Baltimore city, MD

Built 2011 Load: 78.0 t ADT: 10,100

CHESTERFIELD ROAD

Good

Over: BACON RIDGE BRANCH

0.26 MI W OF HAWKINS ROAD, Anne Arundel, MD

Built 2017 Load: 78.7 t ADT: 1,276

US 50

Good

Over: YOUGHIOGHENY RIVER

0.9 MI E OF W VA ST LINE, Garrett, MD

Built 2017 Load: 78.7 t ADT: 1,250

JERUSALEM ROAD

Good

Over: LITTLE GUNPOWDER FALLS

2 MI E OF US RTE 1, Baltimore, MD

Built 1993 Load: 78.9 t ADT: 3,035

MAXWELL COURT

Good

Over: UNNAMED STREAM

0.4 Mile West of MD 1, Howard, MD

Built 1995 Load: 78.9 t ADT: 50

PYRITE LANE

Good

Over: JAMES CREEK

1.4 MILES EAST OF MD-97, Montgomery, MD

Built 2005 Load: 79.4 t ADT: 518

EASTERN BOULEVARD

Good

Over: HAMILTON RUN

0.3 MI W. OF US RTE 40, Washington, MD

Built 1995 Load: 79.4 t ADT: 7,080

CROMWELL VALLEY PA

Good

Over: MINEBANK RUN

0.2 MI N OF MD RTE 567, Baltimore, MD

Built 2006 Load: 79.8 t ADT: 332

US 15 NBR

Good

Over: FLAT RUN

0.2 MILE SOUTH OF MD 140, Frederick, MD

Built 1981 Load: 79.8 t ADT: 18,340

WATERFORD MILL ROA

Good

Over: TRIBUTARY TO COLLINGTON

1.0 MILES SOUTH OF US 50, Prince George's, MD

Built 2009 Load: 79.8 t ADT: 1,277

MD 36

Good

Over: NEFF RUN

0.05 M N OF OMARAS AVENUE, Allegany, MD

Built 1987 Load: 80.3 t ADT: 7,706

CHANDLER DRIVE

Good

Over: BEAVER RUN

87 FT SOUTH OF POOLE ROAD, Carroll, MD

Built 1998 Load: 80.3 t ADT: 825

ROCK HALL ROAD

Good

Over: WASHINGTON RUN

1200 FT. S. OF ROUTE 28, Frederick, MD

Built 1983 Load: 80.3 t ADT: 202

BEAVER DAM ROAD

Good

Over: BEAVER DAM CREEK

0.8 MI NORTH OF MD 75, Frederick, MD

Built 1982 Load: 80.3 t ADT: 53

MD 75

Good

Over: HAINES BRANCH

0.56 MI S OF CARROLL CO, Frederick, MD

Built 2015 Load: 80.4 t ADT: 1,150

MD 807

Good

Over: PEA VINE RUN

0.86 MILE SOUTH OF US 220, Allegany, MD

Built 2002 Load: 80.7 t ADT: 5,092

CATHOLIC CHURCH RD

Good

Over: BROAD RUN

0.6 MI N OF GAPLAND RD, Frederick, MD

Built 1974 Load: 80.7 t ADT: 331

DORSET AVENUE

Good

Over: WILLETT BRANCH

1 MI N OF MD RTE 190, Montgomery, MD

Built 1999 Load: 80.7 t ADT: 1,744

EMERSON BURRIER RO

Good

Over: TALBOT BRANCH

0.4 MI S OF WOODVILLE RD, Frederick, MD

Built 1982 Load: 81.2 t ADT: 175

BADEN NAYLOR ROAD

Good

Over: ROCK CREEK

1.11 MILES SW OF MD 382, Prince George's, MD

Built 2013 Load: 81.3 t ADT: 797

SANDS ROAD

Good

Over: WILSON OWENS BRANCH

1 MI N OF MD 408, Anne Arundel, MD

Built 2016 Load: 81.6 t ADT: 2,393

WELLER ROAD

Good

Over: CHURCH BRANCH

0.37 MI EAST OF MD 75, Frederick, MD

Built 1982 Load: 81.6 t ADT: 1,131

MD 470

Good

Over: TOMAKOKIN CREEK

0.88 MILE SOUTH OF MD 242, St. Mary's, MD

Built 1997 Load: 81.6 t ADT: 1,162

IS 195 SBR

Good

Over: CSX TRANSPORTATION

0.26 MILE NORTH OF US 1, Baltimore, MD

Built 1972 Load: 82.1 t ADT: 41,831

BASSFORD ROAD

Good

Over: SWANSON CREEK

EAGLE RIDGE SUBDIVISION, Charles, MD

Built 2007 Load: 82.1 t ADT: 2,180

FOREST SCHOOL ROAD

Good

Over: MIDDLE CREEK

AT BRANDENBURG HOLLOW RD, Frederick, MD

Built 1982 Load: 82.1 t ADT: 125

SPRUCE RUN ROAD

Good

Over: SPRUCE RUN

0.6 MI NORTH OF MD 17, Frederick, MD

Built 1982 Load: 82.1 t ADT: 166

MONROE ROAD

Good

Over: TRIBUTARY OF LITTLE ANTI

0.07 MI N OF MD RTE 34, Washington, MD

Built 1996 Load: 82.1 t ADT: 203

BLADES ROAD

Good

Over: HUNTING CREEK

CAROLINE - DOR. CO LINE, Caroline, MD

Built 2005 Load: 82.5 t ADT: 568

Bellows Spring Ele

Good

Over: Deep Run Creek

BELLOW SPRING ELEM SCHOOL, Howard, MD

Built 2003 Load: 82.5 t ADT: 500

BW PARKWAY (SBL)

Good

Over: MD ROUTE 410

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

Built 1997 Load: 82.5 t ADT: 40,000

MD 550

Good

Over: ISRAEL CREEK

0.24 MILE SOUTH OF MD 194, Frederick, MD

Built 2015 Load: 82.9 t ADT: 3,450

IS 68 WBR

Good

Over: STREET ROAD

0.92 M E OF BR NO 0114600, Allegany, MD

Built 1990 Load: 83.0 t ADT: 19,030

SKIDMORE ROAD

Good

Over: GILLIS FALLS

.2 MI N OF BRADDOCK RD, Carroll, MD

Built 1988 Load: 83.0 t ADT: 360

Showing 5,001-5,050 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 Editorial.

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). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.