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

MD 85

Unknown

Over: IS 70

AT IS 70, Frederick, MD

Built 2009 ADT: 82,042

MD 546

Unknown

Over: US 40 ALT

0.18 MILE WEST OF MD 946, Garrett, MD

Built 1973 ADT: 2,301

MD 546

Unknown

Over: IS 68

2 M W OF ALLEGANY CO LINE, Garrett, MD

Built 1973 ADT: 18,945

IS 68 EBR

Unknown

Over: WATER ST,YOUGHIOGHENY RI

0.11 MI W OF MD 742, Garrett, MD

Built 1974

IS 68 WBR

Unknown

Over: WATER ST,YOUGHIOGHENY RI

0.11 MI W OF MD 742, Garrett, MD

Built 1973

MD 495

Unknown

Over: IS 68/US 219

0.61 M E OF BR NO 1105000, Garrett, MD

Built 1974 ADT: 17,770

MD 946

Unknown

Over: US 40 ALT

0.18 MILE EAST OF MD 546, Garrett, MD

Built 1956 ADT: 2,301

NEW GERMANY ROAD

Unknown

Over: IS 68,US 219,US 40

0.85 MILE WEST OF US 219, Garrett, MD

Built 1974 ADT: 17,770

US 219

Unknown

Over: BEAR CK,FISH HATCHERY RD

0.77 MI N OF US 219C, Garrett, MD

Built 1962

IS 68 EBR

Unknown

Over: MAPLE ST, BEAR CREEK

0.46 MI E OF MD 742, Garrett, MD

Built 1973 ADT: 2,074

IS 68 WBR

Unknown

Over: MAPLE ST, BEAR CREEK

0.46 MI E OF MD 742, Garrett, MD

Built 1973 ADT: 2,074

IS 68 EBR

Unknown

Over: MD 42

0.4 MILE NORTH OF MD 742, Garrett, MD

Built 1974 ADT: 2,071

IS 68 WBR

Unknown

Over: MD 42

0.4 MILE NORTH OF MD 742, Garrett, MD

Built 1974 ADT: 2,071

IS 68 EBR

Unknown

Over: MD 742

0.17 MILE NORTH OF MD 42, Garrett, MD

Built 1974 ADT: 1,100

IS 68 WBR

Unknown

Over: MD 742

0.17 MILE NORTH OF MD 42, Garrett, MD

Built 1974 ADT: 1,100

IS 68 EBR

Unknown

Over: LOWER NEW GERMANY ROAD

1.72 MILES E OF US 219, Garrett, MD

Built 1974 ADT: 2,113

IS 68 WBR

Unknown

Over: LOWER NEW GERMANY ROAD

1.72 MILES E OF US 219, Garrett, MD

Built 1974 ADT: 2,113

BLOOMING ROSE ROAD

Unknown

Over: IS 68

1.66 MILES WEST OF MD 42, Garrett, MD

Built 1975 ADT: 15,710

MD 948B

Unknown

Over: IS 68

0.31 MI S OF US 40AL, Garrett, MD

Built 1975 ADT: 15,440

GREEN LANTERN RD

Unknown

Over: IS 68

0.23 MI S OF US 40AL, Garrett, MD

Built 1975 ADT: 15,440

PIGS EAR ROAD

Unknown

Over: IS 68

0.05 MI N OF MD 948L, Garrett, MD

Built 1975 ADT: 12,240

OLD MORGANTOWN RD

Unknown

Over: IS 68

4.48 MI E OF MD 742, Garrett, MD

Built 1975 ADT: 12,240

US 40/US 219

Unknown

Over: IS 68

3.07 M W OF AMISH ROAD, Garrett, MD

Built 1975 ADT: 17,530

IS 68/US 219 EB

Unknown

Over: SHADE HALLOW ROAD

0.63 MI W OF MD 495, Garrett, MD

Built 1975

IS 68/US 219 WB

Unknown

Over: SHADE HALLOW ROAD

0.63 MI W OF MD 495, Garrett, MD

Built 1975

AMISH ROAD

Unknown

Over: IS 68/US 219

1.32 MILES S OF US 40AL, Garrett, MD

Built 1975 ADT: 17,530

US 219J

Unknown

Over: IS 68/US 40

0.48 MI S OF US 40AL, Garrett, MD

Built 1975 ADT: 19,470

US 1

Unknown

Over: MD 24

0.26 M S OF RED PUMP ROAD, Harford, MD

Built 1964 ADT: 36,202

MD 715

Unknown

Over: US 40

0.27 MI E OF US 40, Harford, MD

Built 1985 ADT: 33,610

MD 22

Unknown

Over: US 40

0.51 MILE EAST OF MD 132, Harford, MD

Built 1968 ADT: 27,800

MD 24 NBR

Unknown

Over: US 40

1.9 MILES EAST OF MD 152, Harford, MD

Built 1995 ADT: 21,093

MD 24 SBR

Unknown

Over: US 40

0.30 MI N OF MD 755, Harford, MD

Built 1967 ADT: 21,093

MD 23

Unknown

Over: PHILLIPS MILL ROAD

1.97 MILES S OF MD 165, Harford, MD

Built 1961

MD 23

Unknown

Over: MORSE ROAD

1.03 MILES S OF MD 165, Harford, MD

Built 1961

US 1

Unknown

Over: N TOLLGATE ROAD

1.44 MILES N OF MD 147, Harford, MD

Built 1963 ADT: 8,071

VALE ROAD

Unknown

Over: US I

0.74 MILE NORTH OF MD 24, Harford, MD

Built 1963 ADT: 36,122

MD 24 SBR

Unknown

Over: AMTRAK, SIBERT RD

1.72 MILES S OF MD 755, Harford, MD

Built 1974

MD 543

Unknown

Over: IS 95

0.93 MILE NORTH OF MD 136, Harford, MD

Built 1991 ADT: 96,560

MD 543

Unknown

Over: US 40; CSX RAILROAD

.42 M W OF BALD EAGLE WAY, Harford, MD

Built 1995 ADT: 21,093

CO0260

Unknown

Over: IS 95

Milepost M73.4, Harford, MD

Built 2019 ADT: 153,225

Old Mountain Road

Unknown

Over: IS 95

MILEPOST 74.2, Harford, MD

Built 1962 ADT: 128,525

MD RTE 152

Unknown

Over: I-95

MP 74.3, Harford, MD

Built 1962 ADT: 128,525

CO 0283

Unknown

Over: I-95

Milepost M75.1, Harford, MD

Built 1963 ADT: 139,810

IS 95

Unknown

Over: WIN. RUN & WIN. RUN RD

3.2 MI N BALT-HAR CO LINE, Harford, MD

Built 1963 ADT: 139,810

MD 24 EB

Unknown

Over: IS 95

MILEPOST 76.5, Harford, MD

Built 1963 ADT: 120,550

MD 24 WB

Unknown

Over: I-95

MP 76.5, Harford, MD

Built 1987 ADT: 120,550

CO1044

Unknown

Over: I-95

MP 78.0, Harford, MD

Built 1963 ADT: 112,575

MD 136

Unknown

Over: IS 95

Milepost M79.0, Harford, MD

Built 1963 ADT: 112,575

CO0330

Unknown

Over: I-95

Milepost M83.7, Harford, MD

Built 1963 ADT: 93,575

MD 22

Unknown

Over: IS 95

MP 84.9, Harford, MD

Built 2004 ADT: 89,375

Showing 651-700 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.