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

SAND HILL ROAD

Unknown

Over: IS 70

1.19 MILE EAST OF MD 32, Howard, MD

Built 1973 ADT: 85,270

MORGAN STATION RD

Unknown

Over: IS 70

1.9 MILE WEST OF MD 97, Howard, MD

Built 1973 ADT: 71,700

WATERSVILLE ROAD

Unknown

Over: IS 70

2.54 M E OF CARROLL CO/L, Howard, MD

Built 1973 ADT: 65,550

W WATERSVILLE ROAD

Unknown

Over: IS 70

1.01 M E OF CARROLL CO/L, Howard, MD

Built 1973 ADT: 65,550

MD 175 EBR

Unknown

Over: US 29

1.11 M S OF MD 108, Howard, MD

Built 1974 ADT: 84,163

MD 175 WBR

Unknown

Over: US 29

1.11 M S OF MD 108, Howard, MD

Built 1974 ADT: 84,163

MD 94

Unknown

Over: IS 70

1.27 M E/WATERSVILLE ROAD, Howard, MD

Built 1975 ADT: 71,700

MD 32 EBR

Unknown

Over: GUILFORD ROAD

1.0 MI N OF IS 95, Howard, MD

Built 1980 ADT: 4,180

MD 32 WBR

Unknown

Over: GUILFORD ROAD

1.0 MI N OF IS 95, Howard, MD

Built 1980 ADT: 4,180

MD 32 EBR

Unknown

Over: US 29

2.93 MILE NORTH OF MD 216, Howard, MD

Built 1980 ADT: 66,903

MD 32 WBR

Unknown

Over: US 29

3.22 MI N OF IS 95, Howard, MD

Built 1980 ADT: 66,903

SHAKER DR

Unknown

Over: MD 32

0.75 MI N OF MD 732, Howard, MD

Built 1981 ADT: 81,712

BROKEN LAND PKWY

Unknown

Over: MD 32

0.47 MI N OF MD 732A, Howard, MD

Built 1981 ADT: 81,712

MD 32 EBR

Unknown

Over: US 1

0.25 M N OF HOWARD STREET, Howard, MD

Built 1983 ADT: 33,812

MD 32 WBR

Unknown

Over: US 1

0.25 M N OF HOWARD STREET, Howard, MD

Built 1983 ADT: 33,812

MD 32 WB COLLEC.RD

Unknown

Over: US 1

0.28 M N OF HOWARD STREET, Howard, MD

Built 1983 ADT: 33,812

MD 32 EB COLLEC.RD

Unknown

Over: US 1

0.22 M N OF HOWARD STREET, Howard, MD

Built 1983 ADT: 36,052

MD 108 EBR

Unknown

Over: US 29

1.11 MILE NORTH OF MD 175, Howard, MD

Built 1988 ADT: 111,173

MD 108 WBR

Unknown

Over: US 29

1.11 MILE NORTH OF MD 175, Howard, MD

Built 1988 ADT: 111,173

US 1

Unknown

Over: MD 100

0.79 MILE EAST OF IS 95, Howard, MD

Built 1994 ADT: 83,402

US 29 RAMP 7

Unknown

Over: US 29 NBR

0.36 MILE SOUTH OF MD 103, Howard, MD

Built 1992 ADT: 111,173

MD 100 EBR

Unknown

Over: US 29 RAMP 7

0.05 M N OF BR NO 1311900, Howard, MD

Built 1992 ADT: 11,348

MD 100 EBR

Unknown

Over: US 29 NBR

0.24 MILE SOUTH OF MD 103, Howard, MD

Built 1992 ADT: 130,203

MD 103

Unknown

Over: US 29

0.05 MILE NORTH OF MD 100, Howard, MD

Built 1992 ADT: 130,203

MD 732R

Unknown

Over: MD 32

0.32 M N OF AA CO LINE, Howard, MD

Built 1991 ADT: 67,142

VOLLMERHAUSEN ROAD

Unknown

Over: IS 95 NBR

0.71 MILE SOUTH OF MD 32, Howard, MD

Built 1970 ADT: 186,750

BROKEN LAND PK'WY

Unknown

Over: US 29 RAMP 'D'(1)

1.64 miles north of md 32, Howard, MD

Built 1992 ADT: 13,596

US 29 RAMP 'D'(1)

Unknown

Over: US 29

1.77 MILES NORTH OF MD 32, Howard, MD

Built 1991 ADT: 73,292

BROKEN LAND PK'WY

Unknown

Over: US 29

1.64 MILES NORTH OF MD 32, Howard, MD

Built 1991 ADT: 73,292

SENECA DRIVE

Unknown

Over: US 29 AND RAMP 'I'(7)

0.38 MILE NORTH OF MD 32, Howard, MD

Built 1993 ADT: 66,903

MD 108

Unknown

Over: MD 32

1.21 M N OF GREAT STAR DR, Howard, MD

Built 1996 ADT: 28,072

GREAT STAR DRIVE

Unknown

Over: MD 32

1.21 MILE SOUTH OF MD 108, Howard, MD

Built 1995 ADT: 39,762

MD 100J

Unknown

Over: MD 100

0.68 MILE EAST OF US 29, Howard, MD

Built 1992 ADT: 79,752

MD 103

Unknown

Over: MD 100

1.17 MILES WEST OF IS 95, Howard, MD

Built 1997 ADT: 84,712

MD 104

Unknown

Over: MD 100

0.91 M N OF BR NO 1314700, Howard, MD

Built 1998 ADT: 81,592

MD 216 EBR

Unknown

Over: US 29

1.38 M N OF MONT CO LINE, Howard, MD

Built 2001 ADT: 62,080

MD 216 WBR

Unknown

Over: US 29

1.38 M N OF MONT CO LINE, Howard, MD

Built 2001 ADT: 62,080

HOPKINS/GORMAN RD

Unknown

Over: US 29

0.41 M N OF BR NO 1301400, Howard, MD

Built 2000 ADT: 52,913

MD 216 RAMP A(8)

Unknown

Over: MD 216

.78 MI S OF I-95, Howard, MD

Built 2003 ADT: 25,020

MD 932B-BURNTWOODS

Unknown

Over: MD 32

3.16 M S OF MD 144A, Howard, MD

Built 2009 ADT: 21,430

LINDEN CHURCH ROAD

Unknown

Over: MD 32

2.21 MI N OF MD 108, Howard, MD

Built 2013 ADT: 34,000

PEDESTRIAN WALKWAY

Unknown

Over: US 29 AND LITTLE PATUXEN

0.4 MI N SOUTH ENTR RD, Howard, MD

Built 1983

I-895 SB

Unknown

Over: I-95

Milepost 0.4, Howard, MD

Built 1973 ADT: 4,500

I-895 Ramp SB

Unknown

Over: US 1, Patapsco River

MP 1.2, Howard, MD

Built 1957 ADT: 135

IS 895

Unknown

Over: US1&Patapsco River&Ramp

MP 1.4, Howard, MD

Built 1973 ADT: 10,975

US 301 NBR

Unknown

Over: MD 290

0.99 MI S OF CECIL CO, Kent, MD

Built 1955 ADT: 2,461

US 301 SBR

Unknown

Over: MD 290

0.99 MI S OF CECIL CO, Kent, MD

Built 1962 ADT: 2,461

MD 291

Unknown

Over: US 301

0.19 M N/QUEEN ANNE'S CO, Kent, MD

Built 1999 ADT: 9,670

IS 270 NBR

Unknown

Over: MD 109 & LI BENNETT CR

0.52 MI E OF FREDERICK CO, Montgomery, MD

Built 1951 ADT: 7,232

IS 270SBR

Unknown

Over: MD 109 & LI BENNETT CR

0.52 MI E OF FREDERICK CO, Montgomery, MD

Built 1951 ADT: 7,232

Showing 751-800 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.