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

GREEN MILL ROAD

Fair

Over: BEAVER RUN

1.02 MILES SW OF MD 140, Carroll, MD

Built 1976 Load: 53.5 t ADT: 1,291

MD 75

Fair

Over: BENNETT CREEK

1.62 MILES N OF MD 355, Frederick, MD

Built 1974 Load: 53.5 t ADT: 7,952

IS 70 WB

Fair

Over: TRANS CONT PIPE LINE

0.35 MILE EAST OF US 40, Howard, MD

Built 1968 Load: 53.5 t ADT: 67,990

STILL POND CREEK R

Fair

Over: STILL POND CREEK

0.01MI S BESSICKS CRNR RD, Kent, MD

Built 1988 Load: 53.5 t ADT: 282

MD 650

Fair

Over: SLIGO CREEK

0.43 MILE NORTH OF MD 410, Montgomery, MD

Built 1935 Load: 53.5 t ADT: 33,100

MD 185

Fair

Over: ROCK CREEK

0.13 MILE NORTH OF IS 495, Montgomery, MD

Built 1957 Load: 53.5 t ADT: 44,232

IS 95 RAMP D(2)

Fair

Over: BR OF SOUTHWEST BR

0.05 MILE NORTH OF MD 214, Prince George's, MD

Built 1964 Load: 53.5 t ADT: 6,658

BW PARKWAY (NBL)

Fair

Over: MD ROUTE 197 (WBL)

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

Built 2001 Load: 53.5 t ADT: 88,000

MD 244

Fair

Over: POPLAR HILL CREEK

0.16 M W OF TOWER HILL RD, St. Mary's, MD

Built 1938 Load: 53.5 t ADT: 2,517

MD 237

Fair

Over: JARBOESVILLE RUN

0.53 MILE NORTH OF MD 246, St. Mary's, MD

Built 2009 Load: 53.5 t ADT: 17,352

US 11

Fair

Over: POTOMAC RIVER, CSX TRANS

ON WEST VIRGINIA ST LINE, Washington, MD

Built 1909 Load: 53.5 t ADT: 6,761

DEEP BRANCH RD

Fair

Over: TYASKIN CREEK

0.3 MI E WETIPQUIN RD, Wicomico, MD

Built 1997 Load: 53.5 t ADT: 602

WOODCOCK HOLLOW RD

Fair

Over: JENNINGS RUN

0.03 MI S OF MD 36, Allegany, MD

Built 1973 Load: 54.0 t ADT: 88

MD 2 RAMP '8'

Fair

Over: BOULTERS WAY

1.38 MI E OF MD 783, Anne Arundel, MD

Built 1953 Load: 54.0 t ADT: 20,393

MD 173

Fair

Over: ROCK CREEK

0.68 MILE NORTH OF MD 607, Anne Arundel, MD

Built 1932 Load: 54.0 t ADT: 9,150

US 40

Fair

Over: REDHOUSE CREEK

0.65 MI E OF MD 7, Baltimore, MD

Built 1935 Load: 54.0 t ADT: 37,450

IS 795 SBR

Fair

Over: GWYNNS FALLS

0.32 MILE NORTH OF IS 695, Baltimore, MD

Built 1984 Load: 54.0 t ADT: 110,982

ESSEX ROAD

Fair

Over: GWYNNS FALLS

0.1 MI N LIBERTY RD, Baltimore, MD

Built 1963 Load: 54.0 t ADT: 7,029

LONGNECKER ROAD

Fair

Over: TRIBUTARY TO SLADE RUN

0.56 MI ON LONGNECKER RD, Baltimore, MD

Built 1920 Load: 54.0 t ADT: 325

ECHODALE AVENUE

Fair

Over: HERRING RUN

0.2 MI E PERRING PKWY, Baltimore city, MD

Built 1940 Load: 54.0 t ADT: 47,118

MD 26

Fair

Over: LIBERTY RESERVOIR

1.04 M W OF BALTO CO LINE, Carroll, MD

Built 1954 Load: 54.0 t ADT: 20,192

US 40

Fair

Over: Little Patuxent River

0.49 M W OF DOGWOOD DRIVE, Howard, MD

Built 1939 Load: 54.0 t ADT: 50,111

HIPSLEY MILL ROAD

Fair

Over: PATUXENT RIVER

1.8 MILES NORTH OF MD 650, Montgomery, MD

Built 1973 Load: 54.0 t ADT: 675

Briggs Chaney Road

Fair

Over: MD 200 (ICC)

0.75 MI E OF US 29, Montgomery, MD

Built 2011 Load: 54.0 t ADT: 18,193

MD 410

Fair

Over: NORTHEAST BRANCH

0.29 MILE WEST OF MD 201, Prince George's, MD

Built 1967 Load: 54.0 t ADT: 37,792

PROPHET ACRES ROAD

Fair

Over: TRIBUTARY OF MARSH RUN

0.01 MI NORTH OF RT 63, Washington, MD

Built 2005 Load: 54.0 t ADT: 84

MD 353

Fair

Over: BURNT MILL BRANCH

1.90 MILES N OF MD 346, Wicomico, MD

Built 1934 Load: 54.0 t ADT: 4,162

MD 36

Fair

Over: GEORGES CREEK

1.2 MI N OF MD 657, Allegany, MD

Built 2005 Load: 54.4 t ADT: 7,706

MD 43

Fair

Over: CSX TRANSPORTATION

0.08 MILE WEST OF US 40, Baltimore, MD

Built 1963 Load: 54.4 t ADT: 24,493

GREENSPRING AVENUE

Fair

Over: JONES FALLS

0.1 MI N HILLSIDE RD, Baltimore, MD

Built 1975 Load: 54.4 t ADT: 5,142

SUDBROOK LANE

Fair

Over: CSX RAILROAD

0.6 MI S REISTERSTOWN RD, Baltimore, MD

Built 1907 Load: 54.4 t ADT: 2,972

RED RUN BOULEVARD

Fair

Over: RED RUN

0.64 MI E OF MD 940, Baltimore, MD

Built 1985 Load: 54.4 t ADT: 18,272

I-83 SB RAMP E

Fair

Over: CENTRE STREET

SB JFX OFF-RAMP OV CENTRE, Baltimore city, MD

Built 1976 Load: 54.4 t ADT: 3,699

HILTON PARKWAY

Fair

Over: GWYNNS FALLS & FRANKLIN

0.6 MI N EDMONDSON AVE, Baltimore city, MD

Built 1938 Load: 54.4 t ADT: 10,664

LOCHLEA ROAD

Fair

Over: WESTERN RUN

INTER WITH SMITH AVE, Baltimore city, MD

Built 1964 Load: 54.4 t ADT: 634

MCCOMAS STREET

Fair

Over: CSX

0.6 M. E. OF HANOVER ST, Baltimore city, MD

Built 1981 Load: 54.4 t ADT: 1,979

IS 95 SB

Fair

Over: CSX RR YARD & BERNARD DR

Milepost M51.0, Baltimore city, MD

Built 1976 Load: 54.4 t ADT: 108,194

INDIANTOWN ROAD

Fair

Over: CHICONE CREEK

1 MI NE OF MD 331, Dorchester, MD

Built 1993 Load: 54.4 t ADT: 303

TIMMONS ROAD

Fair

Over: LINGANORE CREEK

AT GLISSANS MILL RD INT, Frederick, MD

Built 1974 Load: 54.4 t ADT: 276

MD 715 EB

Fair

Over: AMTRAK

0.51 MILE EAST OF US 40, Harford, MD

Built 1943 Load: 54.4 t ADT: 8,627

MD 715 WB

Fair

Over: AMTRAK

0.51 MILE EAST OF US 40, Harford, MD

Built 1943 Load: 54.4 t ADT: 8,626

MD 175

Fair

Over: CSX RR

ON ANNE ARUNDEL CO LINE, Howard, MD

Built 1942 Load: 54.4 t ADT: 19,272

MD 299

Fair

Over: SASSAFRAS RIVER

ON CECIL COUNTY LINE, Kent, MD

Built 1932 Load: 54.4 t ADT: 1,022

WOOTTON PARKWAY

Fair

Over: TRIB CABIN JOHN CREEK

1.1 MILES WEST OF MD 355, Montgomery, MD

Built 1991 Load: 54.4 t ADT: 22,236

NO. 10 SCHOOL ROAD

Fair

Over: ANDOVER BRANCH

0.5 MI FROM MD RTE 291, Queen Anne's, MD

Built 2006 Load: 54.4 t ADT: 169

US 13 SB

Fair

Over: NORFOLK SOUTHERN RR

0.40 MILE NORTH OF MD 364, Somerset, MD

Built 1965 Load: 54.4 t ADT: 16,470

US 40

Fair

Over: HAMILTON RUN

0.27 MILE EAST OF MD 64, Washington, MD

Built 1941 Load: 54.4 t ADT: 35,842

CORBETT ROAD

Fair

Over: TRIBUTARY TO GUNPOWDER F

0.60 MI E OF RAILROAD AVE, Baltimore, MD

Built 1926 Load: 54.9 t ADT: 400

PAINTERS MILL ROAD

Fair

Over: RED RUN

0.15 MI S OF I-795, Baltimore, MD

Built 1984 Load: 54.9 t ADT: 49,918

CRAFT ROAD

Fair

Over: HUNTING CREEK

1.2 MILES NORTH OF MD 331, Caroline, MD

Built 1996 Load: 54.9 t ADT: 630

Showing 3,001-3,050 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.