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

IS 95 RAMP E

Unknown

Over: I95 NB

MILEPOST 59.9, Baltimore city, MD

Built 1974 ADT: 59,375

IS 95 NB

Unknown

Over: US 40 (PULASKI HWY)

IS 95 @ US RTE 40, Baltimore city, MD

Built 1973 ADT: 30,217

IS 95 SB

Unknown

Over: US 40 (PULASKI HWY)

IS 95 @ US RTE 40, Baltimore city, MD

Built 1973 ADT: 30,217

I-395 RAMP F

Unknown

Over: IS 95 NB

MILEPOST 0.6 I395@I95NB, Baltimore city, MD

Built 1979 ADT: 71,893

I-395 RAMP H

Unknown

Over: IS-95 NB

MP 0.8 I395 RAMPH@I95 NB, Baltimore city, MD

Built 1979 ADT: 71,893

I-395 NB Spur

Unknown

Over: Russell Street

MP 3.6, Baltimore city, MD

Built 1980 ADT: 10,000

I-395 SB SPUR

Unknown

Over: RUSSELL STREET

BWPKWY/RUSSELL ST @ I395, Baltimore city, MD

Built 1980 ADT: 20,000

I395 SPUR NB (MLK)

Unknown

Over: I-395 SB

MP4.0 @ I395 SB & HAMBURG, Baltimore city, MD

Built 1982 ADT: 24,738

IS 895

Unknown

Over: PATAPSCO AVENUE

Milepost M7.0, Baltimore city, MD

Built 1957 ADT: 44,650

IS 895

Unknown

Over: POTEE STREET

MILEPOST 7.1, Baltimore city, MD

Built 1957 ADT: 45,150

IS 895

Unknown

Over: HANOVER STREET

MILEPOST 7.2, Baltimore city, MD

Built 1957 ADT: 45,150

I 895

Unknown

Over: FRANKFURST AVENUE

Milepost M8.0, Baltimore city, MD

Built 1957 ADT: 45,150

IS 895

Unknown

Over: CITY STREETS,B&O,PA RR

CANTON VIADUCT, Baltimore city, MD

Built 1958 ADT: 64,120

I-895 OFF RAMP

Unknown

Over: S PONCA ST, RR

MILEPOST 10.3, Baltimore city, MD

Built 1957 ADT: 54,750

IS 895

Unknown

Over: O'DONNELL STREET

Milepost M11.8, Baltimore city, MD

Built 1957 ADT: 44,850

FAIT AVENUE

Unknown

Over: IS 895

Milepost M12.4, Baltimore city, MD

Built 1957 ADT: 62,200

FOSTER AVENUE

Unknown

Over: IS 895

Milepost M12.5, Baltimore city, MD

Built 1957 ADT: 62,200

FLEET STREET

Unknown

Over: IS 895

Milepost M12.6, Baltimore city, MD

Built 1957 ADT: 62,200

EASTERN AVENUE

Unknown

Over: IS 895

Milepost M12.7, Baltimore city, MD

Built 1957 ADT: 62,200

IS 895

Unknown

Over: LOMBARD STREET

Milepost M12.9, Baltimore city, MD

Built 1957 ADT: 41,325

ERDMAN AVE EB

Unknown

Over: IS 895

Milepost M13.3, Baltimore city, MD

Built 1957 ADT: 61,050

ERDMAN AVE WB

Unknown

Over: IS 895

Milepost M13.3, Baltimore city, MD

Built 1957 ADT: 61,050

MAPLETON PLACE

Unknown

Over: IS 895

Milepost M13.4, Baltimore city, MD

Built 1957 ADT: 61,050

US 40(PULASKI HWY)

Unknown

Over: IS 895

Milepost M13.5, Baltimore city, MD

Built 1957 ADT: 61,050

MORAVIA ROAD

Unknown

Over: IS 895

0.62 MI S OF IS 95, Baltimore city, MD

Built 1958 ADT: 47,300

MORAVIA PARK DRIVE

Unknown

Over: IS 895

Milepost M14.4, Baltimore city, MD

Built 1957 ADT: 60,300

QUARANTINE ROAD

Unknown

Over: MD 695

0.74 MI N OF CHEMICAL RD, Baltimore city, MD

Built 1972 ADT: 14,275

MT HARMONY PARIS R

Unknown

Over: MD 260

1.46 MILE EAST OF MD 778, Calvert, MD

Built 2005 ADT: 14,871

MD 260 RAMP 'A'

Unknown

Over: MD 4

0.12 M S OF AA/CAL LINE, Calvert, MD

Built 2003 ADT: 35,171

MD 404 EBR

Unknown

Over: MD 313

0.77 MILE SOUTH OF MD 317, Caroline, MD

Built 1987 ADT: 10,860

MD 404 WBR

Unknown

Over: MD 313

0.77 MILE SOUTH OF MD 317, Caroline, MD

Built 1987 ADT: 10,860

CAMP ROAD

Unknown

Over: MD 404

.39 MI. W. OF MD 313, Caroline, MD

Built 1987 ADT: 15,421

MD 404 EBR

Unknown

Over: MARKET STREET

0.46 MI W OF MD 404 BU, Caroline, MD

Built 1987 ADT: 1,480

MD 404 WBR

Unknown

Over: MARKET STREET

0.46 MI W OF MD 404 BU, Caroline, MD

Built 1987 ADT: 1,480

IS 70 EBR

Unknown

Over: MD 27

0.27 MI N OF FREDERICK CO, Carroll, MD

Built 1974 ADT: 24,731

IS 70 WBR

Unknown

Over: MD 27

0.04 MI E OF FREDERICK CO, Carroll, MD

Built 1974 ADT: 24,731

MD 140

Unknown

Over: MD MID RR,MD 27, WEST BR

0.51 M S OF HAHN ROAD, Carroll, MD

Built 1953 ADT: 23,741

MD 140 WB & RAMP B

Unknown

Over: MD 97

2.32 M N OF MALCOLM DRIVE, Carroll, MD

Built 2006 ADT: 24,320

MD 140 EB

Unknown

Over: MD 97

2.32 M N OF MALCOLM DRIVE, Carroll, MD

Built 2006 ADT: 24,320

MD 140

Unknown

Over: RICHARDSON ROAD

2.69 MI N OF MD 832, Carroll, MD

Built 1963

MD 26

Unknown

Over: MD 97

1.92 M S OF BARTHOLOW RD, Carroll, MD

Built 1962 ADT: 13,800

HOUCKSVILLE ROAD

Unknown

Over: MD 30

HOUCKSVILLE RD OVER MD 30, Carroll, MD

Built 2007 ADT: 9,420

MD 275

Unknown

Over: IS 95

MILEPOST 93.4, Cecil, MD

Built 1963 ADT: 34,625

I-95

Unknown

Over: MD 824

Milepost M93.8, Cecil, MD

Built 1964 ADT: 1,000

WINCH ROAD

Unknown

Over: IS 95

MILEPOST 95.2, Cecil, MD

Built 1964 ADT: 74,450

CONVEYOR BRIDGE

Unknown

Over: I-95

0.02 MI N OF BELVIDERE RD, Cecil, MD

Built 2011

BELVIDERE ROAD

Unknown

Over: IS 95

MILEPOST 96.0, Cecil, MD

Built 1963 ADT: 74,450

I 95

Unknown

Over: RED TOAD ROAD

Milepost M97.9, Cecil, MD

Built 1963 ADT: 89,550

IS 95

Unknown

Over: RED TOAD ROAD

Milepost M97.9, Cecil, MD

Built 1963 ADT: 89,550

MD 272

Unknown

Over: IS 95

MILEPOST 100.0, Cecil, MD

Built 1997 ADT: 75,550

Showing 501-550 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.