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%.

Condition Distribution

Bridge inventory deck-condition mix — Maryland (FHWA NBI)

Maryland25.909173149990956%49.140582594535914%GoodFairPoorStructurally Deficient
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 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.

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

Structurally Deficient

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

Structurally Deficient

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

CENTURY BOULEVARD

Good

Over: TRIB TO LITTLE SENECA CR

0.3 MILES WEST OF I-270, Montgomery, MD

Built 2014 Load: 96.9 t ADT: 3,720

RESERVE BOULEVARD

Good

Over: UNNAMED TRIBUTARY TO LIT

.03 MI S OF MD198, Anne Arundel, MD

Built 2019 Load: 97.2 t ADT: 194

FINGERBOARD SCHOOL

Good

Over: CABIN JOHN CREEK

.3 Mi South Cherry Grove, Cecil, MD

Built 1975 Load: 97.2 t ADT: 195

Rock Lynn Circle

Good

Over: Pole Branch

LINDEN GROVE SUBDIVISION, Charles, MD

Built 2010 Load: 97.2 t ADT: 365

JEFFERSON TECHNOLO

Good

Over: US ROUTE 340/15 INTERCHA

0.7 MI S OF I-70, Frederick, MD

Built 2015 Load: 97.2 t ADT: 500

GLEN COVE ROAD

Good

Over: PEDDLER RUN

1.90 MI. E OF DUBLIN, Harford, MD

Built 2019 Load: 97.2 t ADT: 481

MILLVILLE ROAD

Good

Over: FURNACE BRANCH

1.25 MI S OF MD 12, Worcester, MD

Built 2015 Load: 97.2 t ADT: 59

IS 68

Good

Over: LITTLE PINE LICK HOLLOW

0.46 MI W OF US 40 SCN, Allegany, MD

Built 1990 Load: 99.9 t ADT: 18,551

MD 144

Good

Over: LITTLE PINE LICK HOLLOW

NEXT TO BR # 1089, Allegany, MD

Built 1990 Load: 99.9 t ADT: 1,121

US 40 SCN

Good

Over: PRATT HOLLOW

0.04 M S OF BR NO 0113300, Allegany, MD

Built 1990 Load: 99.9 t ADT: 284

MD 144

Good

Over: PRATT HOLLOW

0.28 M W OF BR NO 0113800, Allegany, MD

Built 1990 Load: 99.9 t ADT: 1,121

MD 948Y

Good

Over: SNIB HOLLOW

0.04 M S OF WASH CO LINE, Allegany, MD

Built 1988 Load: 99.9 t ADT: 99

IS 68 RAMP A(4)

Good

Over: WEST TRIB FLINTSTONE CRE

0.16 M W OF BR NO 0107700, Allegany, MD

Built 1990 Load: 99.9 t ADT: 999

MD 450

Good

Over: NORTH RIVER

2.89 MILE EAST OF MD 424, Anne Arundel, MD

Built 1989 Load: 99.9 t ADT: 6,927

MD 258

Good

Over: TRACYS CREEK

1.07 MILE EAST OF MD 2, Anne Arundel, MD

Built 1963 Load: 99.9 t ADT: 8,882

IS 97

Good

Over: BR OF BACON RIDGE BRANCH

1.68 MILES N OF MD 450, Anne Arundel, MD

Built 1987 Load: 99.9 t ADT: 91,300

MD 32 WBR

Good

Over: AMTRAK

0.41 MILE WEST OF MD 170, Anne Arundel, MD

Built 1991 Load: 99.9 t ADT: 53,532

MD 295 RAMP 'C'

Good

Over: BR OF LITTLE PATUXENT RI

MD32 & CANINE RD, Anne Arundel, MD

Built 1991 Load: 99.9 t ADT: 1,440

MD 32

Good

Over: ROGUE HABOR BRANCH

0.91 M N OF PEPPER ROAD, Anne Arundel, MD

Built 1990 Load: 99.9 t ADT: 50,192

MD 198

Good

Over: TRIB TO LITTLE PATUXENT

0.793 MILE WEST OF MD 32, Anne Arundel, MD

Built 2002 Load: 99.9 t ADT: 24,452

ARUNDEL MILLS BOUL

Good

Over: PINEY RUN

0.4 MI SE OF MD 295, Anne Arundel, MD

Built 2001 Load: 99.9 t ADT: 25,990

STARWOOD DRIVE

Good

Over: MARLEY CREEK

0.6 MI S OF MD100, Anne Arundel, MD

Built 1971 Load: 99.9 t ADT: 652

CROSSROADS DRIVE

Good

Over: TRIB TO SEVERN RUN

625 FT EAST OF MD 170, Anne Arundel, MD

Built 1994 Load: 99.9 t ADT: 1,891

WAUGH CHAPEL ROAD

Good

Over: TOWSERS BRANCH

0.25 MI WEST OF MD 3, Anne Arundel, MD

Built 1972 Load: 99.9 t ADT: 18,893

MILLERSVILLE LANDF

Good

Over: TRIB TO SEVERN RIVER

0.5 MI W OF BURNS CR. RD, Anne Arundel, MD

Built 2000 Load: 99.9 t ADT: 869

Strawberry Lake Wa

Good

Over: Tributary to Little Patu

0.6 MI S. of MD 170, Anne Arundel, MD

Built 1999 Load: 99.9 t ADT: 6,700

US 1

Good

Over: GUNPOWDER FALLS

0.91 M S OF MT VISTA ROAD, Baltimore, MD

Built 1991 Load: 99.9 t ADT: 3,393

MD 131

Good

Over: ROLAND RUN

0.85 MILE WEST OF IS 83, Baltimore, MD

Built 1979 Load: 99.9 t ADT: 9,381

IS 795

Good

Over: GWYNNS FALLS

0.22 M N OF BR NO 0331700, Baltimore, MD

Built 1984 Load: 99.9 t ADT: 110,982

MD 43

Good

Over: TRIB TO WINDLASS RUN

0.9 M E OF BIRD RIVER RD, Baltimore, MD

Built 2005 Load: 99.9 t ADT: 16,200

ROLAND AVENUE

Good

Over: ROLAND RUN

300 FT W OF RUXWAY RD, Baltimore, MD

Built 1942 Load: 99.9 t ADT: 873

EAGLE MILL ROAD

Good

Over: LITTLE FALLS

0.7 MI NE WALKER AVE, Baltimore, MD

Built 2011 Load: 99.9 t ADT: 200

FRANKLIN BOULEVARD

Good

Over: ROACHES RUN

0.24 MI SE OF MD 140, Baltimore, MD

Built 1974 Load: 99.9 t ADT: 23,430

MCCORMICK ROAD

Good

Over: OREGON BRANCH

0.8 MI S. OF SHAWAN ROAD, Baltimore, MD

Built 1966 Load: 99.9 t ADT: 17,473

COLLEGIATE DRIVE

Good

Over: BULL BRANCH

0.1 MI W OF ROLLING ROAD, Baltimore, MD

Built 1991 Load: 99.9 t ADT: 1,000

DOLFIELD BOULEVARD

Good

Over: TRIBUTARY TO RED RUN

0.1 MI N OF LAKESIDE BLVD, Baltimore, MD

Built 1992 Load: 99.9 t ADT: 3,600

GERST ROAD

Good

Over: BEAN RUN

.5 MI N OF E. JOPPA ROAD, Baltimore, MD

Built 2000 Load: 99.9 t ADT: 558

LAKESIDE BOULEVARD

Good

Over: RED RUN

1.0 MI. SW. EXIT 4 I-795, Baltimore, MD

Built 1990 Load: 99.9 t ADT: 21,244

WALTHAM WOODS ROAD

Good

Over: TRIBUTARY TO GUNPOWDER F

1.9MI E OF EXIT 30 I-695, Baltimore, MD

Built 1980 Load: 99.9 t ADT: 9,216

FRANKLIN SQUARE BO

Good

Over: SOUTH FORK OF WHITE MARS

1.8 MI SW OF RT 7, Baltimore, MD

Built 1999 Load: 99.9 t ADT: 15,245

PEBBLE BROOKE ROAD

Good

Over: TRIBUTARY TO WESTERN RUN

50 FT NORTH OF SMITH AVE., Baltimore, MD

Built 2009 Load: 99.9 t ADT: 339

WARREN ROAD

Good

Over: PARKS RUN

0.3 Mi. West of MD 45, Baltimore, MD

Built 1990 Load: 99.9 t ADT: 17,400

LOCH RAVEN HS ACCE

Good

Over: TRIBUTARY TO MINEBANK RU

0.3 MI E OF COWPENS RD, Baltimore, MD

Built 2014 Load: 99.9 t ADT: 5

GREENSIDE DRIVE

Good

Over: TRIBUTARY TO PARKS RUN

0.4 MI E OF MD 45, Baltimore, MD

Built 1966 Load: 99.9 t ADT: 4,351

I-395 RAMP E

Good

Over: STADIUM LOT

Milepost 3.2, Baltimore city, MD

Built 1980 Load: 99.9 t ADT: 9,126

MD 2 & 4

Good

Over: QUAKER SWAMP

0.34 MILE SOUTH OF MD 765, Calvert, MD

Built 1987 Load: 99.9 t ADT: 26,941

HUNTINGTOWN ROAD

Good

Over: COCKTOWN CREEK

1.54 MI SW OF MD 262, Calvert, MD

Built 1996 Load: 99.9 t ADT: 1,434

MILL BRANCH ROAD

Good

Over: TRIBUTARY OF CHEW CREEK

0.1 MILES SOUTH OF MD 262, Calvert, MD

Built 1990 Load: 99.9 t ADT: 441

MD 287

Good

Over: BROADWAY BRANCH

0.465 M W OF JACKSON LANE, Caroline, MD

Built 1999 Load: 99.9 t ADT: 2,021

STAFFORD ROAD

Good

Over: TIDY ISLAND CREEK

.05 MI W OF DELAWARE LINE, Caroline, MD

Built 1997 Load: 99.9 t ADT: 67

Showing 5,101-5,150 of 5,527 bridges

Related

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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.

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.