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

CENTURION WAY

Good

Over: SANDY BRANCH

3.3 MILES NORTH MD-190, Montgomery, MD

Built 2000 Load: 99.9 t ADT: 6,433

OBSERVATION DRIVE

Good

Over: TRIB TO LITTLE SENECA CR

0.3 MI. EAST OF I-270, Montgomery, MD

Built 1994 Load: 99.9 t ADT: 11,584

HOMECREST ROAD

Good

Over: NORTHWEST BRANCH TRIB

0.9 MI. E. OF MD 97, Montgomery, MD

Built 1972 Load: 99.9 t ADT: 105

UPSHIRE CIRCLE

Good

Over: SHADY BRANCH

.7 MI W OF MUDDY BR ROAD, Montgomery, MD

Built 1990 Load: 99.9 t ADT: 265

VICTORY FARM DRIVE

Good

Over: TRIBUTARY TO WHETSTONE R

0.3 MI N OF GIRARD ST, Montgomery, MD

Built 1981 Load: 99.9 t ADT: 3,667

CARNATION DRIVE

Good

Over: WATTS BRANCH TRIBUTARY

1.25 MI N OF MD 28, Montgomery, MD

Built 1969 Load: 99.9 t ADT: 480

MD 200

Good

Over: Mill Creek

4.98 mi west of MD 97, Montgomery, MD

Built 2008 Load: 99.9 t ADT: 42,498

MD 200

Good

Over: Mill Creek Tributary

4.56 mi west of MD 97, Montgomery, MD

Built 2008 Load: 99.9 t ADT: 42,498

MD 202F & RAMP D

Good

Over: TRIB TO SW BRANCH

RAMP FROM ARENA DRIVE, Prince George's, MD

Built 1997 Load: 99.9 t ADT: 12,512

MD 5

Good

Over: BR OF PISCATAWAY CREEK

1.2 MILES SOUTH OF MD 223, Prince George's, MD

Built 1955 Load: 99.9 t ADT: 73,482

MD 637

Good

Over: OXON RUN

0.16 M E OF WASH DC LINE, Prince George's, MD

Built 1989 Load: 99.9 t ADT: 20,421

MD 953

Good

Over: LOTTSFORD BRANCH

0.54 MILE WEST OF MD 193, Prince George's, MD

Built 1984 Load: 99.9 t ADT: 3,740

US 1

Good

Over: BEAR BRANCH

0.7 MILE SOUTH OF MD 198, Prince George's, MD

Built 1985 Load: 99.9 t ADT: 35,712

MD 500

Good

Over: NORTHWEST BRANCH

0.12 MILE EAST OF MD 501, Prince George's, MD

Built 1987 Load: 99.9 t ADT: 41,631

MD 193

Good

Over: TRIB TO PAINT BRANCH

0.27 MILE WEST OF US 1, Prince George's, MD

Built 1955 Load: 99.9 t ADT: 41,260

WOOD POINTE DRIVE

Good

Over: UNNAMED TRIBUTARY

2 MI SE OF MD 193,MD 564, Prince George's, MD

Built 1992 Load: 99.9 t ADT: 480

RUBY LOCKHART BOUL

Good

Over: UNNAMED STREAM

.2 MI N OF ST JOSEPHS DR, Prince George's, MD

Built 2010 Load: 99.9 t ADT: 9,000

RITCHIE ROAD

Good

Over: RITCHIE BRANCH

0.13 MI N OF ASHVILLE RD, Prince George's, MD

Built 2002 Load: 99.9 t ADT: 24,341

TEMPLE HILL ROAD

Good

Over: TRIB TO HENSON CREEK

.11 MI S OF BRINKLEY ROAD, Prince George's, MD

Built 1964 Load: 99.9 t ADT: 16,823

HIL-MAR DRIVE

Good

Over: TRIBUTARY TO HENSON CREE

0.17 MI W OF WALTERS LANE, Prince George's, MD

Built 2008 Load: 99.9 t ADT: 996

BRINKLEY ROAD

Good

Over: TRIBUTARY TO HENSON CREE

0.15 MI W OF FISHER ROAD, Prince George's, MD

Built 2008 Load: 99.9 t ADT: 32,967

IRVINGTON STREET

Good

Over: BARNABY RUN

200 FEET S. OF OWENS ROAD, Prince George's, MD

Built 1958 Load: 99.9 t ADT: 5,389

BOHAC LANE

Good

Over: TRIB TO MATTAWOMAN CR

1.0 MI FROM MD 210, Prince George's, MD

Built 2000 Load: 99.9 t ADT: 1,185

JOHN ROGERS BLVD

Good

Over: TRIB TO FEDERAL SPRG BR

.2 MI N OLD MARLBORO PIKE, Prince George's, MD

Built 1993 Load: 99.9 t ADT: 4,850

KINGS MANOR DRIVE

Good

Over: NORTHEAST BRANCH

0.5 M EAST OF MD 193, Prince George's, MD

Built 1980 Load: 99.9 t ADT: 2,400

TRUMPS HILL ROAD

Good

Over: CHARLES BRANCH

0.09 MI S OF MD 382, Prince George's, MD

Built 2001 Load: 99.9 t ADT: 994

MD 200

Good

Over: Unnamed Stream

0.7 mi E OLD GUNPOWDER RD, Prince George's, MD

Built 2010 Load: 99.9 t ADT: 13,543

MD 200 EB TO 95 SB

Good

Over: Unnamed Stream

0.7 mi E Old Gunpowder Rd, Prince George's, MD

Built 2009 Load: 99.9 t ADT: 3,061

MD 200

Good

Over: AMMENDALE BRANCH

0.1 mi W OF KONTERRA Dr, Prince George's, MD

Built 2013 Load: 99.9 t ADT: 5,265

MD 18A

Good

Over: COX CREEK

0.6 MILE EAST OF MD 835C, Queen Anne's, MD

Built 1999 Load: 99.9 t ADT: 1,312

MD 5

Good

Over: BRANCH OF MCINTOSH RUN

.652 MILE SOUTH OF MD 243, St. Mary's, MD

Built 2017 Load: 99.9 t ADT: 22,220

IS 70 EB

Good

Over: MEADOW BROOK CREEK

2.95 MILES WEST OF MD 63, Washington, MD

Built 1967 Load: 99.9 t ADT: 40,770

IS 70

Good

Over: BLACKROCK CREEK

0.66 MILE EAST OF MD 66, Washington, MD

Built 1968 Load: 99.9 t ADT: 58,600

TOLLGATE RIDGE RD

Good

Over: TONOLOWAY CREEK

0.6 MI E OF MD 144, Washington, MD

Built 1916 Load: 99.9 t ADT: 828

BROADFORDING ROAD

Good

Over: CONOCOCHEAGUE CREEK

0.7 MI W OF MD RTE 63, Washington, MD

Built 1829 Load: 99.9 t ADT: 265

MT AETNA ROAD

Good

Over: BEAVER CREEK

0.1 MI W OF MD RTE 66, Washington, MD

Built 1993 Load: 99.9 t ADT: 1,654

POFFENBERGER ROAD

Good

Over: ANTIETAM CREEK

0.57 MI W OF ALT US RT 40, Washington, MD

Built 1841 Load: 99.9 t ADT: 1,698

POFFENBERGER ROAD

Good

Over: ANTIETAM CREEK

0.54 MI W OF ALT US RT 40, Washington, MD

Built 1840 Load: 99.9 t ADT: 1,698

COFFMAN FARMS RD

Good

Over: LITTLE ANTIETAM CREEK

0.1 MI E OF MD RTE 34, Washington, MD

Built 1832 Load: 99.9 t ADT: 362

GOVERNOR LANE BOUL

Good

Over: TRIBUTARY OF SEMPLE RUN

1 MI N OF MD RTE 68, Washington, MD

Built 1969 Load: 99.9 t ADT: 5,806

US 113 NB

Good

Over: MATAPONI CREEK

2.44 MILES S OF US 113BU, Worcester, MD

Built 1972 Load: 99.9 t ADT: 6,962

NASA ACCESS ROAD

Poor

Over: BALTIMORE-WASHINGTON PAR

BELTWAY TO EXIT 2 - ROUTE, Prince George's, MD

Built 1966 ADT: 10,000

TAYLOR MILL ROAD

Poor

Over: OLD MILL STREAM BRANCH

0.7 MILE EAST OF MD 213, Queen Anne's, MD

Built 1955 ADT: 100

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

POPLAR HILL ROAD

Poor

Over: ZEKIAH SWAMP RUN

2.5 MI E OF MD 5, Charles, MD

Built 1969 Load: 11.3 t ADT: 4,644

POFFENBERGER ROAD

Poor

Over: CATOCTIN CREEK

1.1 MILES EAST OF MD 383, Frederick, MD

Built 1878 Load: 11.8 t ADT: 375

LOST LAND RUN ROAD

Poor

Over: TRIBUTARY OF LOST LAND R

POTOMAC GARRETT ST FOREST, Garrett, MD

Built 1920 Load: 12.2 t ADT: 5

Showing 5,251-5,300 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.