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%.

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.

All Bridges in Maryland

QUARRY ROAD

Fair

Over: TRIBUTARY TO DEEP CREEK

0.2 MI NORTH OF RTE 219, Garrett, MD

Built 2007 Load: 51.7 t ADT: 115

MD 190

Fair

Over: CABIN JOHN CREEK

0.74 MILE EAST OF MD 191, Montgomery, MD

Built 1974 Load: 51.7 t ADT: 22,022

PERSIMMON TREE ROA

Fair

Over: CONGRESSIONAL CC UNDERPA

0.4 MI N OF I-495, Montgomery, MD

Built 1977 Load: 51.7 t ADT: 2,685

MD 214

Fair

Over: HONEY BRANCH

0.59 M W OF AA CO LINE, Prince George's, MD

Built 1947 Load: 51.7 t ADT: 10,771

ODELL ROAD

Fair

Over: INDIAN CREEK

0.12 MILES WEST OF MD 201, Prince George's, MD

Built 2000 Load: 51.7 t ADT: 2,036

BW PARKWAY (RAMP C

Fair

Over: MD ROUTE 197 (EBL)

1.9 MILES NORTH OF MD ROU, Prince George's, MD

Built 2001 Load: 51.7 t ADT: 20,000

IS 70 EB

Fair

Over: NORFOLK & SOUTHERN RR

0.52 MILE EAST OF MD 632, Washington, MD

Built 1968 Load: 51.7 t ADT: 33,892

IS 70 WB

Fair

Over: NORFOLK SOUTHERN RAILROA

0.52 MILE EAST OF MD 632, Washington, MD

Built 1968 Load: 51.7 t ADT: 34,890

RIVER PARK ROAD

Fair

Over: C&O CANAL

Route 68 to Salisbury Str, Washington, MD

Built 1879 Load: 51.7 t ADT: 200

MD 25

Fair

Over: JONES FALLS

0.33 MILE SOUTH OF MD 25A, Baltimore, MD

Built 1973 Load: 52.2 t ADT: 9,121

MAYFIELD AVENUE

Fair

Over: DEEP RUN

0.2 MI W OF MD RTE 103, Howard, MD

Built 1945 Load: 52.2 t ADT: 5,788

INDIANOLA DRIVE

Fair

Over: CSXT RR & WMATA METRO

1 MI E OF MD RTE 355, Montgomery, MD

Built 1981 Load: 52.2 t ADT: 1,075

COLUMBIA PARK ROAD

Fair

Over: BEAVERDAM CREEK

0.17 MI E OF US 50, Prince George's, MD

Built 1977 Load: 52.2 t ADT: 43,372

US 301 SB

Fair

Over: UNICORN BRANCH

0.48 M S OF KENT CO LINE, Queen Anne's, MD

Built 1967 Load: 52.2 t ADT: 10,370

HALFWAY BOULEVARD

Fair

Over: UNDERPASS WAY-VALLEY MAL

0.32 MI E OF I 81, Washington, MD

Built 1971 Load: 52.2 t ADT: 16,373

WILSON BOULEVARD

Fair

Over: NORFOLK SOUTHERN RAILROA

150 FT W OF VIRGINIA AVE, Washington, MD

Built 1983 Load: 52.2 t ADT: 9,800

RIVERSIDE DRIVE

Fair

Over: TONY TANK CREEK

.75 MI S SALSBRY CTY LINE, Wicomico, MD

Built 1999 Load: 52.2 t ADT: 3,565

PITTSBURGH PG ROAD

Fair

Over: CSXT / LOCKHOUSE RD

0.23 MI NW OF MD 51, Allegany, MD

Built 1957 Load: 52.6 t ADT: 2,085

IS 595

Fair

Over: SOUTH RIVER

0.94 M W OF BR NO 0203100, Anne Arundel, MD

Built 1950 Load: 52.6 t ADT: 101,670

CARROLL ISLAND ROA

Fair

Over: SALTPETER CREEK

2.4 MI E EASTERN AVE, Baltimore, MD

Built 1960 Load: 52.6 t ADT: 10

PADONIA ROAD

Fair

Over: MTA LIGHT RAIL

0.4 MI W OF YORK RD, Baltimore, MD

Built 1961 Load: 52.6 t ADT: 40,537

NB I83 TO EB NPKWY

Fair

Over: JONES FALLS

NB I-83 OFF RAMP, Baltimore city, MD

Built 1959 Load: 52.6 t ADT: 25,771

UNION AVENUE

Fair

Over: JONES FALLS

0.2 MI S 41ST ST, Baltimore city, MD

Built 1960 Load: 52.6 t ADT: 4,766

I-895

Fair

Over: MDTA BHT MAINTENANCE FAC

Milepost M8.06, Baltimore city, MD

Built 1957 Load: 52.6 t ADT: 82,953

MD 313

Fair

Over: CHAPEL BRANCH

0.5 MILE NORTH OF MD 317, Caroline, MD

Built 1954 Load: 52.6 t ADT: 7,160

WOODBINE ROAD

Fair

Over: SOUTH BRANCH PATAPSCO RI

ON HOWARD CO LINE, Carroll, MD

Built 1976 Load: 52.6 t ADT: 8,182

LEEDS ROAD

Fair

Over: LITTLE ELK CREEK

0.5 MI NE OF MD 545, Cecil, MD

Built 1967 Load: 52.6 t ADT: 2,203

MD 77

Fair

Over: HUNTING CREEK

0.29 MILE WEST OF US 15, Frederick, MD

Built 1970 Load: 52.6 t ADT: 4,351

US 15 NBR

Fair

Over: TOMS CREEK

0.65 MILE N OF US 15BU, Frederick, MD

Built 1980 Load: 52.6 t ADT: 18,340

MD 333

Fair

Over: PEACHBLOSSOM CREEK

1.95 MILES S OF MD 322, Talbot, MD

Built 1997 Load: 52.6 t ADT: 7,672

WATERCLIFF STREET

Fair

Over: HILL RUN

0.01 MI S OF WATER STA RD, Allegany, MD

Built 1955 Load: 53.1 t ADT: 161

IS 795 NBR

Fair

Over: GWYNNS FALLS

0.32 MILE NORTH OF IS 695, Baltimore, MD

Built 1984 Load: 53.1 t ADT: 110,982

NORTH WIND ROAD

Fair

Over: JENNIFER BRANCH

0.6 MI E HARFORD RD, Baltimore, MD

Built 1973 Load: 53.1 t ADT: 11,862

I-83 SOUTHBOUND

Fair

Over: CENTRE STREET & MADISON

0.1 MI N OF ORLEANS ST, Baltimore city, MD

Built 1976 Load: 53.1 t ADT: 77,003

BLOOMINGDALE ROAD

Fair

Over: CSX

BLOOMINGDALE RD OVER CSX, Baltimore city, MD

Built 1990 Load: 53.1 t ADT: 7,443

JANNEY STREET

Fair

Over: EASTERN AVENUE

EASTERN AV UNDR JANNEY ST, Baltimore city, MD

Built 1930 Load: 53.1 t ADT: 36,467

MD 313

Fair

Over: CHOPTANK RIVER

0.32 MILE NORTH OF MD 314, Caroline, MD

Built 1949 Load: 53.1 t ADT: 8,230

IS 68

Fair

Over: BUFFALO RUN

1.27 MILES E OF W VA, Garrett, MD

Built 1975 Load: 53.1 t ADT: 14,341

MD 24

Fair

Over: BR OF DEER CREEK

0.09 M N OF COEN ROAD, Harford, MD

Built 1986 Load: 53.1 t ADT: 3,193

WATERSVILLE ROAD

Fair

Over: HAY MEADOW BRANCH

1 MI N OLD FREDERICK RD, Howard, MD

Built 1935 Load: 53.1 t ADT: 539

RILEYS NECK ROAD

Fair

Over: TRIB. TO CYPRESS CREEK

0.05 MI N OF MD RTE 291, Kent, MD

Built 1992 Load: 53.1 t ADT: 114

IS 495X SB

Fair

Over: CABIN JOHN CREEK

0.02 MILE SOUTH OF GV 6, Montgomery, MD

Built 1964 Load: 53.1 t ADT: 22,160

PEACH ORCHARD ROAD

Fair

Over: PAINT BRANCH

.5 M N OF BRIGGS CHANEY R, Montgomery, MD

Built 1990 Load: 53.1 t ADT: 3,677

BRIGHTON DAM ROAD

Fair

Over: BRIGHTON DAM & TRIADELPH

1 MILE EAST OF MD 650, Montgomery, MD

Built 1944 Load: 53.1 t ADT: 7,106

US 301 SB

Fair

Over: CHESTER RIVER

ON KENT CO LINE, Queen Anne's, MD

Built 1967 Load: 53.1 t ADT: 10,370

MD 333

Fair

Over: TRIPPE CREEK

0.67 M N OF SPRING ROAD, Talbot, MD

Built 1998 Load: 53.1 t ADT: 7,672

PLANTATION DRIVE

Fair

Over: TRIBUTARY OF ANTIETAM CR

0.5 MI N OF EAST RIDGE DR, Washington, MD

Built 1996 Load: 53.1 t ADT: 1,136

BURHANS BOULEVARD

Fair

Over: NORFOLK SOUTHERN RAILROA

0.47 MI N OF VIRGINIA AVE, Washington, MD

Built 1962 Load: 53.1 t ADT: 11,223

BRIDGE STREET

Fair

Over: BARREN CREEK

0.13 MI N OF ATHOL ROAD, Wicomico, MD

Built 1972 Load: 53.1 t ADT: 792

ON RAMP 29TH STREE

Fair

Over: I-83 NB

29TH ST AT I-83, Baltimore city, MD

Built 1959 Load: 53.5 t ADT: 19,035

Showing 2,951-3,000 of 5,527 bridges

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.