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

WOLFSVILLE ROAD

Fair

Over: BEAVER CREEK

0.2 MI S OF MD RTE 844, Washington, MD

Built 1915 Load: 16.7 t ADT: 1,500

RACE ROAD

Fair

Over: STEMMERS RUN

0.14 MI S OF ROSSVIL BLVD, Baltimore, MD

Built 1929 Load: 16.8 t ADT: 1,700

ROSSVILLE BOULEVAR

Fair

Over: BRIEN RUN

0.60 MI S OF US 40, Baltimore, MD

Built 1970 Load: 16.8 t ADT: 22,664

Roberts Mill Road

Fair

Over: Maryland Midland Railway

0.1 MI SE OF MD 194, Carroll, MD

Built 1929 Load: 16.8 t ADT: 1,105

STATION ROAD

Fair

Over: CATOCTIN CREEK

0.5 MI W OF OLD HAGERSTOW, Frederick, MD

Built 1920 Load: 16.8 t ADT: 133

GROVE ROAD

Fair

Over: MILL RUN

0.01 MI S MILL RUN ROAD, Garrett, MD

Built 1986 Load: 16.8 t ADT: 12

FRIENDSHIP ROAD

Fair

Over: OVERSHOT BRANCH

1.0 MILES S OF MD 152, Harford, MD

Built 1975 Load: 16.8 t ADT: 975

MD 674

Fair

Over: GRAYS INN CREEK

0.25 MILE WEST OF MD 20, Kent, MD

Built 1977 Load: 16.8 t ADT: 1,230

OLD MILL ROAD

Fair

Over: OWENS CREEK

0.87 MILES SOUTH OF MD 77, Frederick, MD

Built 1882 Load: 17.2 t ADT: 360

GRIFFITH ROAD

Fair

Over: HAWLINGS RIVER

1 MI W OF JCT SR 650, Montgomery, MD

Built 1920 Load: 17.2 t ADT: 282

MOLLY BERRY ROAD

Fair

Over: MATAPONI CREEK

0.65 MI SW OF MD 382, Prince George's, MD

Built 1967 Load: 17.2 t ADT: 656

MD 45

Fair

Over: WESTERN RUN

0.75 MILE NORTH OF MD 145, Baltimore, MD

Built 1917 Load: 17.7 t ADT: 23,992

JOPPA ROAD

Fair

Over: FORMER HUTZLER'S DEPARTM

E OF DULANEY VALLEY RD, Baltimore, MD

Built 1951 Load: 17.7 t ADT: 27,568

TULSMERE ROAD

Fair

Over: SCOTTS LEVEL BRANCH

0.4 MI S OF WINANDS RD, Baltimore, MD

Built 1969 Load: 17.7 t ADT: 1,844

CLEARWOOD ROAD

Fair

Over: TRIBUTARY TO HERRING RUN

0.20 MI E OF OAKLEIGH RD, Baltimore, MD

Built 1963 Load: 17.7 t ADT: 100

RINEHART ROAD

Fair

Over: BIG PIPE CREEK

0.62 MI N OF SAW MILL RD, Carroll, MD

Built 1961 Load: 17.7 t ADT: 1,030

SLACKS ROAD

Fair

Over: TRIBUTARY OF PINEY RUN

1.06 MI N RAINCLIFFE ROAD, Carroll, MD

Built 1975 Load: 17.7 t ADT: 905

MD 213

Fair

Over: BR OF MORGAN CREEK

0.3 M N OF BIG WOOD ROAD, Kent, MD

Built 1955 Load: 17.7 t ADT: 3,381

MASEMORE ROAD

Fair

Over: GUNPOWDER FALLS

0.6 MI SW BUNKER HILL RD, Baltimore, MD

Built 1898 Load: 18.1 t ADT: 344

JENNINGS ROAD

Fair

Over: SOUTH BRANCH CASSELMAN R

0.06 MI E BEAR HILL RD, Garrett, MD

Built 1917 Load: 18.1 t ADT: 207

East Montgomery Ro

Fair

Over: Rockville Center Multipl

0.5 Miles West of Md. 355, Montgomery, MD

Built 1998 Load: 18.1 t ADT: 500

RODMAN AVENUE

Fair

Over: SHERRICKS RUN

0.16km (0.1 MILES) TO ROH, Washington, MD

Built 1965 Load: 18.1 t ADT: 4,300

GRIMES ROAD

Fair

Over: TOMS CREEK

0.5 MILES S OF SIXES ROAD, Frederick, MD

Built 1914 Load: 18.6 t ADT: 170

SIMPSONS MILL ROAD

Fair

Over: LITTLE PIPE CREEK

1.12 MI N OF GOOD INTENT, Frederick, MD

Built 1890 Load: 18.6 t ADT: 200

SNOWDEN RIVER PARK

Fair

Over: ROBERT FULTON DRIVE

1.0 MI S OF MD RTE 175, Howard, MD

Built 1976 Load: 18.6 t ADT: 35,944

BAYSIDE ROAD

Fair

Over: TANHOUSE CREEK

1.29 MI SW OF MD 365, Worcester, MD

Built 1970 Load: 18.6 t ADT: 240

MAGOTHY BRIDGE RD

Fair

Over: MAGOTHY RIVER

0.84 MI N OF MD 648D, Anne Arundel, MD

Built 1978 Load: 19.0 t ADT: 19,964

BW PARKWAY

Fair

Over: BIG PATUXENT RIVER

0.8 MILES NORTH OF MD ROU, Anne Arundel, MD

Built 1953 Load: 19.0 t ADT: 40,000

MD 147

Fair

Over: BR OF LONG GREEN CREEK

0.46 MI N OF SHARON DR, Baltimore, MD

Built 1916 Load: 19.0 t ADT: 5,752

PRINCIPIO ROAD

Fair

Over: PRINCIPIO CREEK

0.12 MI S OF RED TOAD RD, Cecil, MD

Built 1980 Load: 19.0 t ADT: 834

SIXES BRIDGE ROAD

Fair

Over: MONOCACY RIVER

2.5 MI S OF KEYSVILLE RD, Frederick, MD

Built 1910 Load: 19.0 t ADT: 198

MD 28

Fair

Over: BR OF DRY SENECA CREEK

0.98 MILE WEST OF MD 117, Montgomery, MD

Built 1954 Load: 19.0 t ADT: 5,420

CARDEROCK ACCESS C

Fair

Over: CLARA BARTON PARKWAY

0.7 MILES WEST OF MACARTH, Montgomery, MD

Built 1962 Load: 19.0 t ADT: 2,000

SOUTH PALMER ROAD

Fair

Over: PARKING GARAGE

1 KM W OF RT. 185, Montgomery, MD

Built 1980 Load: 19.3 t ADT: 200

MD 128

Fair

Over: MCGILL RUN

3.00 MI W OF MD 25, Baltimore, MD

Built 1929 Load: 19.5 t ADT: 2,991

OREMS ROAD, SUNNYS

Fair

Over: TRIBUTARY TO BRIEN RUN

0.1 MI NE OF ROSSVILLE BL, Baltimore, MD

Built 1970 Load: 19.5 t ADT: 5,180

BLOOM ROAD

Fair

Over: MORGAN RUN

250 FT S OF SALEM BOTTOM, Carroll, MD

Built 1980 Load: 19.5 t ADT: 520

MD 17

Fair

Over: CATOCTIN CREEK

0.6 M S OF MAERK ROAD, Frederick, MD

Built 1934 Load: 19.5 t ADT: 5,450

MD 978A

Fair

Over: COLLINGTON BRANCH

0.18 MILE WEST OF MD 214, Prince George's, MD

Built 1929 Load: 19.5 t ADT: 2,180

BROWN STATION ROAD

Fair

Over: CABIN BRANCH

1.61 MILES N OF MD 725, Prince George's, MD

Built 1964 Load: 19.5 t ADT: 8,974

FLORAL DRIVE

Fair

Over: PAINT BRANCH

0.1 MILES NE N AVE, Prince George's, MD

Built 1975 Load: 19.8 t ADT: 250

WINDY RIDGE DRIVE

Fair

Over: JENNINGS RUN

1.3 MI W OF MD 35, Allegany, MD

Built 1959 Load: 20.0 t ADT: 10

STRATHMORE AVENUE

Fair

Over: WESTERN RUN

0.1 MI N CROSS COUNTRY BL, Baltimore city, MD

Built 1955 Load: 20.0 t ADT: 15,199

OVERHILL ROAD

Fair

Over: STONY RUN

OVERHILL RD OV STONY RUN, Baltimore city, MD

Built 1930 Load: 20.0 t ADT: 11,921

MD 27

Fair

Over: MARYLAND MIDLAND RR

.12 MILE SOUTH OF MD 852G, Carroll, MD

Built 1959 Load: 20.0 t ADT: 18,790

BABYLON ROAD

Fair

Over: SILVER RUN

0.05 MI N OF MAYBERRY RD, Carroll, MD

Built 1960 Load: 20.0 t ADT: 117

MD 272 SB

Fair

Over: NORTHEAST CREEK

0.1 MILE NORTH OF MD 7C, Cecil, MD

Built 1945 Load: 20.0 t ADT: 6,302

CLARA BARTON PARKW

Fair

Over: CABIN JOHN CREEK & CABIN

1.6 MILES SOUTH OF I-495., Montgomery, MD

Built 1963 Load: 20.0 t ADT: 16,120

MD ROUTE 193

Fair

Over: BW PARKWAY

0.4 MILES NORTH OF I-95, Prince George's, MD

Built 1964 Load: 20.0 t ADT: 24,700

BW PARKWAY (SBL)

Fair

Over: ACCESS RAMP TO BW PARKWA

0.6 MILES SOUTH OF MD ROU, Prince George's, MD

Built 1954 Load: 20.0 t ADT: 34,075

Showing 1,201-1,250 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.