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

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 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

Maryland32.7%62%GoodFairPoor (structurally 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.

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 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

GEORGIA AVENUE WAL

Unknown

Over: I-495 OUTER LOOP RAMP

I-495 OUTER LOOP RAMP, MD

Built 2007

GEORGI AVENUE WALK

Unknown

Over: I-495 INNER LOOP RAMP

I-495 INNER LOOP RAMP, MD

Built 2007

NB I-95 EXP TOLL L

Unknown

Over: I-695 & STEMMERS RUN

3.23 Mi South of MD 43, MD

NB I-95 EXP TOLL L

Unknown

Over: I-695 & STEMMERS RUN

3.23 Mi South of MD 43, MD

I-895 TOLL LANES

Unknown

Over: I-95 SOUTHBOUND, MOORES

ETL's at I-895 and I-95, MD

US 220

Unknown

Over: MD 135A

0.43 MI N OF MD 135B, Allegany, MD

Built 1952 ADT: 2,120

US 220

Unknown

Over: N POTOMAC RIVER, MD 135

0.42 MILE EAST OF MD 135A, Allegany, MD

Built 2012 ADT: 6,572

IS 68 EB

Unknown

Over: MD 948AO, FLINTSTONE CRK

0.12 MILE NORTH OF MD 144, Allegany, MD

Built 1990 ADT: 1,320

IS 68 WB

Unknown

Over: MD 948AO, FLINTSTONE CRK

0.12 MILE NORTH OF MD 144, Allegany, MD

Built 1990 ADT: 1,320

MD 952

Unknown

Over: IS 68

0.03 MI S OF MD 952A, Allegany, MD

Built 1962 ADT: 30,249

IS 68

Unknown

Over: US 40 ALT AND MD 639

0.15 M W OF PINE AVE, Allegany, MD

Built 1964 ADT: 8,091

ORLEANS R0AD

Unknown

Over: IS 68

1.45 M W OF BR NO 0112900, Allegany, MD

Built 1968 ADT: 15,460

MOUNTAIN ROAD

Unknown

Over: IS 68

1.08 M E OF BR NO 0113000, Allegany, MD

Built 1968 ADT: 18,970

IS 68

Unknown

Over: PATTERSON AVENUE

0.54 MI E OF US 220, Allegany, MD

Built 1968 ADT: 204

FLETCHER DRIVE

Unknown

Over: IS 68

0.1 MILE EAST OF US 220, Allegany, MD

Built 1968 ADT: 47,770

IS 68

Unknown

Over: US 220

4.72 M S OF MD 144, Allegany, MD

Built 1968 ADT: 13,601

IS 68

Unknown

Over: MD 658

0.73 MI E OF MD 53, Allegany, MD

Built 1968 ADT: 12,671

IS 68 EB

Unknown

Over: MD 936

0.42 M N OF KERR ROAD, Allegany, MD

Built 1972 ADT: 1,502

IS 68 WB

Unknown

Over: MD 936

0.42 M N OF KERR ROAD, Allegany, MD

Built 1972 ADT: 1,502

IS 68

Unknown

Over: MD 736 (MIDLOTHIAN ROAD)

0.27 M S OF BRADDOCK ST, Allegany, MD

Built 1972 ADT: 4,531

IS 68

Unknown

Over: MD 736 (MIDLOTHIAN ROAD)

0.27 M S OF BRADDOCK ST, Allegany, MD

Built 1972 ADT: 4,531

IS 68 EBR

Unknown

Over: MD 55

0.25 MILE W OF US 40 ALT, Allegany, MD

Built 1973 ADT: 2,552

IS 68

Unknown

Over: MD 55

1.53 MI E OF MD 36, Allegany, MD

Built 1973 ADT: 2,552

MD 36

Unknown

Over: IS 68

1.53 MILES WEST OF MD 55, Allegany, MD

Built 1972 ADT: 26,410

IS 68 EBR

Unknown

Over: MD 53

.19 MILE SOUTH OF US 4OAL, Allegany, MD

Built 1971 ADT: 12,262

IS 68 WBR

Unknown

Over: MD 53

.19 MILE SOUTH OF US 4OAL, Allegany, MD

Built 1971 ADT: 12,262

WAVERLY STREET

Unknown

Over: MD 36

0.44 MILE NORTH OF MD 135, Allegany, MD

Built 1975 ADT: 4,290

MD 948Y

Unknown

Over: IS 68

0.4 M W OF WASHINGTON CO, Allegany, MD

Built 1988 ADT: 19,950

US 40 SCN

Unknown

Over: IS 68

.3 M E OF SNIB HOLLOW RUN, Allegany, MD

Built 1988 ADT: 15,460

MD 948AL

Unknown

Over: IS 68

1.27 MI E OF US 40 SC, Allegany, MD

Built 1990 ADT: 18,970

US 40 SCN

Unknown

Over: IS 68

.5 M E OF FIFTEEN MILE CR, Allegany, MD

Built 1990 ADT: 18,400

MD 144

Unknown

Over: IS 68 & PRATT HOLLOW

.1 M W OF FIFTEEN MILE CR, Allegany, MD

Built 1999 ADT: 18,551

POLISH MTN SERVICE

Unknown

Over: IS 68

1 M W/OLD CUMBERLAND RD, Allegany, MD

Built 1990 ADT: 18,551

OLD CUMBERLAND RD

Unknown

Over: IS 68

2.2 MI E CHANEYSVILLE RD, Allegany, MD

Built 1990 ADT: 18,551

MD 144

Unknown

Over: IS 68

0.46 M E OF BR NO 0114700, Allegany, MD

Built 1990 ADT: 19,030

MD 144

Unknown

Over: IS 68

0.46 M W OF BR NO 0114600, Allegany, MD

Built 1990 ADT: 17,860

MD 948AD

Unknown

Over: IS 68

1.3 M E OF BR NO 0115100, Allegany, MD

Built 1990 ADT: 17,860

MD 948AE

Unknown

Over: IS 68,ELK LICK RUN

1.36 MI E OF MD 144, Allegany, MD

Built 1990 ADT: 21,600

IS 68 EBR

Unknown

Over: MD 144, ELK LICK RUN

0.18 M E/CEDAR KNOLL LN, Allegany, MD

Built 1990 ADT: 1,121

IS 68 WBR

Unknown

Over: MD 144, ELK LICK RUN

0.18 M E/CEDAR KNOLL LN, Allegany, MD

Built 1990 ADT: 1,121

MD 948AF

Unknown

Over: IS 68

0.86 M W OF BR NO 0115400, Allegany, MD

Built 1990 ADT: 21,600

MD 144

Unknown

Over: IS 68

0.49 M E OF BR NO 0103000, Allegany, MD

Built 1990 ADT: 21,600

US 220

Unknown

Over: I-68 AND MD 144 RAMP

0.13 M W OF ALI GHAN ROAD, Allegany, MD

Built 1999 ADT: 26,680

BDFRD/FREDRICK STS

Unknown

Over: QUEEN CITY DR & US 40ALT

FREDERICK ST @ US 40ALT, Allegany, MD

Built 1977 ADT: 17,300

MARION STREET

Unknown

Over: IS 68

0.23 MI W OF MD 639, Allegany, MD

Built 1968 ADT: 30,530

IS 695

Unknown

Over: MD 168

0.38 MI N OF MD 295, Anne Arundel, MD

Built 1958 ADT: 13,660

IS 695

Unknown

Over: MD 295 NBR

0.41 MI S OF MD 168, Anne Arundel, MD

Built 1951 ADT: 80,822

IS 695 IL

Unknown

Over: IS 97

0.16 MI S OF IS 895A, Anne Arundel, MD

Built 1957 ADT: 18,621

IS 695 OL

Unknown

Over: IS 97

0.16 MI S OF IS 895A, Anne Arundel, MD

Built 1957 ADT: 18,621

MD 168

Unknown

Over: MD 295 NBR

0.49 MI E OF IS 695, Anne Arundel, MD

Built 1949 ADT: 80,822

Showing 1-50 of 5,527 bridges

Related

All states → | National rankings → | Understanding conditions → | SD bridges explained →
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.

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.