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

SINCLAIR LANE

Poor

Over: MOORE'S RUN

0.7 MI S RADECKE AVE, Baltimore city, MD

Built 1962 Load: 53.5 t ADT: 18,265

FRANKLINTOWN ROAD

Poor

Over: GWYNNS FALLS

0.4 MI W HILTON PKWY, Baltimore city, MD

Built 1970 Load: 54.0 t ADT: 3,379

FORT AVENUE

Poor

Over: CSX

0.2 MI. W. OF FT. MCHENRY, Baltimore city, MD

Built 1923 Load: 55.3 t ADT: 2,755

O'CONNOR ROAD

Poor

Over: DEEP RUN

0.1 MI N OF MD RTE 103, Anne Arundel, MD

Built 1944 Load: 55.8 t ADT: 599

PONCA STREET

Poor

Over: CANTON RAILROAD

PONCA ST. OVER CANTON RR, Baltimore city, MD

Built 1973 Load: 57.1 t ADT: 2,287

WOODBOURNE AVENUE

Poor

Over: HERRING RUN

0.09 MI E PERRING PKWY, Baltimore city, MD

Built 1974 Load: 58.5 t ADT: 13,233

TAMAR DRIVE

Poor

Over: UNNAMED STREAM

0.1 MI E PHELPS LUCK, Howard, MD

Built 1970 Load: 60.8 t ADT: 10,941

OLD MT PLEASANT RD

Poor

Over: EVITTS CREEK

1.48 MILES NE OF I-68, Allegany, MD

Built 1952 Load: 64.9 t ADT: 244

US 219

Poor

Over: YOUGHIOGHENY RIVER

1.28 MILES SOUTH OF US 50, Garrett, MD

Built 1900 Load: 65.8 t ADT: 1,660

RIVERDALE ROAD

Poor

Over: NE BRANCH OF ANACOSTIA R

0.33 MI W OF MD 201, Prince George's, MD

Built 1931 Load: 66.2 t ADT: 7,399

QUINCE ORCHARD ROA

Poor

Over: MUDDY BRANCH

1.8 MILES SOUTH OF MD 28, Montgomery, MD

Built 1965 Load: 66.7 t ADT: 5,297

WILKENS AVENUE

Poor

Over: GWYNNS FALLS

0.4 MI E CATON AVE, Baltimore city, MD

Built 1936 Load: 67.6 t ADT: 35,470

DOGSTREET ROAD

Poor

Over: DOG CREEK

1.3 MI W OF MD RTE 67, Washington, MD

Built 1940 Load: 67.6 t ADT: 1,408

WASTE GATE ROAD

Poor

Over: NASSAWANGO CREEK

0.67 M S OF MT HERMON, Wicomico, MD

Built 1986 Load: 72.1 t ADT: 272

AMOSS MILL ROAD

Poor

Over: ISLAND BRANCH

0.5 MILES SE OF MD 136, Harford, MD

Built 1972 Load: 73.5 t ADT: 99

COLUMBIA ROAD

Poor

Over: PLUMTREE BRANCH

0.8 MI. NORTH OF MD. 108, Howard, MD

Built 1987 Load: 75.7 t ADT: 8,641

SHADY GROVE RD EB

Poor

Over: CSXT RAILROAD

0.5 MI EAST OF MD 355, Montgomery, MD

Built 1976 Load: 76.6 t ADT: 19,679

BELMONT WOODS ROAD

Poor

Over: ROCKBURN BRANCH

0.1 MI W OF I-95, Howard, MD

Built 1950 Load: 77.1 t ADT: 100

BESTPITCH FERRY RO

Poor

Over: WINDMILL ISLAND CREEK

0.5 MI W OF GRIFFITH NECK, Dorchester, MD

Built 1982 Load: 78.9 t ADT: 105

NEW BRIDGE ROAD

Poor

Over: CHICAMACOMICO RIVER

0.64 MI.W.OF STEELE N RD., Dorchester, MD

Built 1981 Load: 78.9 t ADT: 184

NEW ROW ROAD

Poor

Over: DUTCH HOLLOW RUN

AT INTERSECTION MD 36, Allegany, MD

Built 1935 Load: 79.4 t ADT: 669

BROKEN LAND PARKWA

Poor

Over: TRIB LITTLE PATUXENT R

At Cradlerock Way, Howard, MD

Built 1972 Load: 79.8 t ADT: 10,000

THREE BRIDGES ROAD

Poor

Over: BURNT MILL BRANCH

0.5 MI E OF MD RTE 94, Wicomico, MD

Built 1967 Load: 84.8 t ADT: 897

BROWN ROAD

Poor

Over: ROARING RUN

0.2 MI NE OF MD 140, Carroll, MD

Built 1985 Load: 86.6 t ADT: 395

MD 36

Poor

Over: JENNINGS RUN

0.33 MILE SOUTH OF MD 638, Allegany, MD

Built 1987 Load: 99.9 t ADT: 1,320

HOSPITAL DRIVE

Poor

Over: MARLEY CREEK

0.4 MI. E. OF OAKWOOD RD, Anne Arundel, MD

Built 1991 Load: 99.9 t ADT: 4,097

TOWN CENTER BLVD.

Poor

Over: TRIBUTARY TO SEVERN RUN

0.5 MI. N OF MD32, Anne Arundel, MD

Built 1988 Load: 99.9 t ADT: 7,820

KING AVENUE

Poor

Over: BRANCH OF WHITE MARSH RU

0.5 MI NW OF SR 7, Baltimore, MD

Built 1978 Load: 99.9 t ADT: 18,643

MD 225

Poor

Over: BR OF MATTAWOMAN CREEK

0.02 MILE WEST OF MD 224, Charles, MD

Built 1951 Load: 99.9 t ADT: 8,750

HANCOCK RUN ROAD

Poor

Over: HANCOCK RUN

0.1 MI W MD RTE 6, Charles, MD

Built 1970 Load: 99.9 t ADT: 240

CELESTIAL LANE

Poor

Over: SWANSON CREEK

1 MI E. GALLANT GREEN RD, Charles, MD

Built 1992 Load: 99.9 t ADT: 1,228

LILY PONS ROAD

Poor

Over: LOCUST RUN

0.07 MI EAST OF MD RTE 85, Frederick, MD

Built 1977 Load: 99.9 t ADT: 394

LYNN BURKE ROAD

Poor

Over: CHURCH BRANCH

0.1 MI N OF WELLER ROAD, Frederick, MD

Built 1965 Load: 99.9 t ADT: 2,175

BRETHREN CHURCH RD

Poor

Over: CATOCTIN CREEK

0.75 MI EAST OF MD 17, Frederick, MD

Built 1986 Load: 99.9 t ADT: 821

QUARTER STAFF ROAD

Poor

Over: TRIB TO LITTLE PATUXENT

1000' NW of Martin Ln, Howard, MD

Built 1972 Load: 99.9 t ADT: 300

SUMMER HOLLOW LN

Poor

Over: UNNAMED STREAM

1/8 MI S OF MD 108, Howard, MD

Built 1972 Load: 99.9 t ADT: 500

WESLEY LANE

Poor

Over: BRANCH OF DEEP RUN

50' east of MD 103, Howard, MD

Built 1972 Load: 99.9 t ADT: 500

MIDCOUNTY HWY & MI

Poor

Over: MILL CREEK

.5 MI W OF SHADY GROVE RD, Montgomery, MD

Built 1984 Load: 99.9 t ADT: 31,600

HAWKINS LANDING DR

Poor

Over: GREAT SENECA CREEK TRIBU

.06 M W OF HAWK. CREAM. R, Montgomery, MD

Built 2002 Load: 99.9 t ADT: 132

HOWELL ROAD

Poor

Over: BOOZE CREEK

900 FT. W. OF MD 191, Montgomery, MD

Built 1959 Load: 99.9 t ADT: 105

RABBITT ROAD

Poor

Over: LONG DRAUGHT BRANCH

1 MILE SOUTH OF MD 117, Montgomery, MD

Built 1982 Load: 99.9 t ADT: 1,329

CLARA BARTON PARKW

Poor

Over: CLARA BARTON PARKWAY (SB

0.1 MILES WEST OF MACARTH, Montgomery, MD

Built 1959 Load: 99.9 t ADT: 40,057

KEPNER COURT

Poor

Over: TRIBUTARY TO NORTHEAST B

0.9 MI N OF GOOD LUCK RD, Prince George's, MD

Built 1960 Load: 99.9 t ADT: 240

MADELEY LANE

Poor

Over: TRIB TO PATUXENT RIVER

0.5 MI NORTH OF MD 450, Prince George's, MD

Built 1962 Load: 99.9 t ADT: 4,608

WASHINGTON STREET

Structurally Deficient

Over: CSXT RAILROAD

0.2 MI W OF CUMBERLAND ST, Allegany, MD

Built 1930 ADT: 110

CUMBERLAND STREET

Structurally Deficient

Over: CSXT RAILROAD

0.6 MI E OF WASHINGTON ST, Allegany, MD

Built 1929 ADT: 110

MILL STREET

Structurally Deficient

Over: ROCK RUN

.01 MI S. OF RACE STREET, Cecil, MD

Built 1940 ADT: 100

BACK LANDING ROAD

Structurally Deficient

Over: HUNTING CREEK

ON CAROLINE COUNTY LINE, Dorchester, MD

Built 1941

TALBOT AVENUE

Structurally Deficient

Over: CSXT RAILROAD

0.2 MI E OF MICHIGAN AVE, Montgomery, MD

Built 1918 ADT: 1,430

GOVERNOR BRIDGE RO

Structurally Deficient

Over: PATUXENT RIVER

ON AA CO LINE, Prince George's, MD

Built 1920 ADT: 7,068

Showing 5,451-5,500 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.