State profile · Below median Poor share

Maryland bridge safety

Condition ratings, load ratings, and Poor-condition data for every public highway bridge in Maryland, based on the FHWA National Bridge Inventory.

5,527
Public bridges
25.9%
Good condition
4.3%
Poor condition

Data updated May 2026

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 whose lowest applicable component is rated 0-4

-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 - Poor-condition 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 by Poor-condition share (lower share = better)

States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Maryland on the same metric.

CT

Connecticut

3.95% top marginal rate
Structure
Progressive
Burden @ $100K
$4,277

TN

Tennessee

3.97% top marginal rate
Structure
Progressive
Burden @ $100K
$20,426
Selected

MD

Maryland

4.27% top marginal rate
Structure
Progressive
Burden @ $100K
$5,527

CO

Colorado

4.32% top marginal rate
Structure
Progressive
Burden @ $100K
$8,965

OR

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 the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.

All Bridges in Maryland

PENNINGTON ROAD

Good

Over: THOMAS RUN

0.2 MILE E OF THOMAS R RD, Harford, MD

Built 1975 Load: 57.6 t ADT: 249

OLD SOUTHAMPTON RO

Good

Over: BYNUM RUN

0.6 MILES S OF MD 543, Harford, MD

Built 1930 Load: 57.6 t ADT: 51

MD 100

Good

Over: OLD MONT. RD & DEEP RUN

0.62 MILE WEST OF MD 103, Howard, MD

Built 1998 Load: 57.6 t ADT: 82,092

MD 100

Good

Over: DORSEY STATION ACCESS RD

0.39 M W OF AA CO LINE, Howard, MD

Built 1996 Load: 57.6 t ADT: 83,402

MD 100

Good

Over: DORSEY STATION ACCESS RD

0.39 M W OF AA CO LINE, Howard, MD

Built 1996 Load: 57.6 t ADT: 83,402

BURNING TREE ROAD

Good

Over: BOOZE CREEK

0.5 MILES SOUTH OF MD 191, Montgomery, MD

Built 2008 Load: 57.6 t ADT: 1,938

Ramp WS & WN

Good

Over: Ramp NW

0.5 mi S Briggs Chaney Rd, Montgomery, MD

Built 2011 Load: 57.6 t ADT: 2,706

RAGAN ROAD

Good

Over: BRANCH OF OCTORARO CREEK

0.89 MI E OF US RTE 222, Cecil, MD

Built 2011 Load: 57.7 t ADT: 327

I - 195 WB

Good

Over: RAMP X

BWI AIRPORT, Anne Arundel, MD

Built 2002 Load: 58.0 t ADT: 20,000

WHITE MARSH ROAD

Good

Over: TRIBUTARY TO WHITE MARSH

1.0 MI E OF MD RT 1, Baltimore, MD

Built 2005 Load: 58.0 t ADT: 3,320

I695W RAMP TO I95N

Good

Over: STEMMERS RUN

I95/I695 INTERCHANGE, Baltimore, MD

Built 2008 Load: 58.0 t ADT: 13,836

STEVENSON ROAD

Good

Over: LITTLE NORTHEAST CREEK

0.02 MI E OF STEVENSON RD, Cecil, MD

Built 2008 Load: 58.0 t ADT: 3,009

GALESTOWN RELIANCE

Good

Over: GALESTOWN MILLPOND

1.5 Mi. NE of JNC Rt 313, Dorchester, MD

Built 2008 Load: 58.0 t ADT: 1,259

ARNOLDTOWN ROAD

Good

Over: TRIB. OF BROAD RUN

0.4 MI W OF PICNIC WOODS, Frederick, MD

Built 1984 Load: 58.0 t ADT: 407

BOTTOM ROAD

Good

Over: OVERSHOT BRANCH

0.03 MILES N OF GUYTON RD, Harford, MD

Built 1978 Load: 58.0 t ADT: 300

CLARKSBURG ROAD

Good

Over: LITTLE BENNETT CREEK TRI

2.8 MILES NORTH OF MD 355, Montgomery, MD

Built 1988 Load: 58.0 t ADT: 2,969

MD 55

Good

Over: BRADDOCK RUN

0.27 MI W OF IS 68, Allegany, MD

Built 1950 Load: 58.5 t ADT: 2,552

US 220

Good

Over: EVITTS CREEK

0.71 MILE NORTH OF I-68, Allegany, MD

Built 1999 Load: 58.5 t ADT: 3,841

ACTON LANE

Good

Over: MATTAWOMAN CREEK

ON CHARLES COUNTY LINE, Charles, MD

Built 2001 Load: 58.5 t ADT: 9,665

SINGLETON DRIVE

Good

Over: TRIB OF PETER PAN RUN

EAST OF ADDISON WOODS RD, Frederick, MD

Built 1999 Load: 58.5 t ADT: 600

TALBOT RUN ROAD

Good

Over: TALBOT BRANCH

0.25 MI E OF WOODVILLE RD, Frederick, MD

Built 1979 Load: 58.5 t ADT: 215

SINGER ROAD

Good

Over: MOUNTAIN BRANCH

1.7 MILES E OF MD 152, Harford, MD

Built 2003 Load: 58.5 t ADT: 4,530

DRY BRANCH ROAD

Good

Over: TRIB / DEER CREEK

0.4 MILES W OF MD 23, Harford, MD

Built 1999 Load: 58.5 t ADT: 82

MD 200 (ICC) EB

Good

Over: Good Hope Tributary

0.48 Mi East of MD650, Montgomery, MD

Built 2010 Load: 58.5 t ADT: 31,755

Ramp ES

Good

Over: Ramp SE

0.12 mi W of 29/200 I/C, Montgomery, MD

Built 2011 Load: 58.5 t ADT: 2,449

EMORY ROAD

Good

Over: DEEP RUN

0.38 MI E OF WESLEY ROAD, Carroll, MD

Built 2000 Load: 59.0 t ADT: 150

MD 7C

Good

Over: AMTRAK

2.34 MILE NORTH OF MD 272, Cecil, MD

Built 1991 Load: 59.0 t ADT: 4,860

MD 180 EASTBOUND

Good

Over: US 15

0.49 MILE EAST OF IS 70, Frederick, MD

Built 2020 Load: 59.0 t ADT: 27,750

MUNCASTER MILL RD

Good

Over: MD 200 (ICC)

2.33 MI W OF MD 97, Montgomery, MD

Built 2010 Load: 59.0 t ADT: 19,690

BEAVER DAM ROAD

Good

Over: BEAVER DAM CREEK

0.15 MI W OF MD 295, Prince George's, MD

Built 2003 Load: 59.0 t ADT: 450

BEE OAK ROAD

Good

Over: TRIBUTARY OF WOLF DEN BR

1 MI S OF CEDARVILLE RD, Prince George's, MD

Built 1975 Load: 59.0 t ADT: 100

LEITERSBURG-SMITHS

Good

Over: LITTLE ANTIETAM CREEK

1.02 MI SE OF MD RTE 60, Washington, MD

Built 1981 Load: 59.0 t ADT: 2,760

OLD FORGE ROAD

Good

Over: MARSH RUN

0.76 MI E OF MD RTE 60, Washington, MD

Built 1998 Load: 59.0 t ADT: 1,214

LITTLE TONOLOWAY A

Good

Over: C&O CANAL

0.2 miles from Little Ton, Washington, MD

Built 1969 Load: 59.0 t ADT: 72

BAYSIDE ROAD

Good

Over: PAW PAW CREEK

0.19 MI SW OF MD 365, Worcester, MD

Built 2021 Load: 59.0 t ADT: 234

BARKSDALE ROAD

Good

Over: WEST BRANCH OF CHRISTIAN

0.32 MI E OF APPLETON RD, Cecil, MD

Built 2008 Load: 59.3 t ADT: 2,053

MD 56

Good

Over: TOMS RUN

1.9 MILES WEST OF MD 68, Washington, MD

Built 2023 Load: 59.3 t ADT: 500

RESH MILL ROAD

Good

Over: GRAVE RUN

0.56 MI N OF FALLS RD, Baltimore, MD

Built 2005 Load: 59.4 t ADT: 232

MD 410

Good

Over: GEORGETOWN BRANCH TRAIL

0.52 MILE EAST OF MD 355, Montgomery, MD

Built 1997 Load: 59.4 t ADT: 26,061

MD 36

Good

Over: GEORGES CREEK

1.03 M S OF BR NO 0112700, Allegany, MD

Built 2008 Load: 59.9 t ADT: 7,706

MD 36

Good

Over: N BRANCH POTOMAC RIVER

ON WEST VIRGINIA LINE, Allegany, MD

Built 1994 Load: 59.9 t ADT: 4,720

DOGWOOD ROAD

Good

Over: DOGWOOD RUN

2.74 MI. W. OF IS 695, Baltimore, MD

Built 2018 Load: 59.9 t ADT: 7,043

NEW CUT ROAD

Good

Over: MILL POND STREAM

1.02 MILES N OF MD 282, Cecil, MD

Built 2000 Load: 59.9 t ADT: 242

CEDARDAY DRIVE

Good

Over: TRIBUTARY TO BYNUM RUN

1.0 MILES E OF CEDAR LANE, Harford, MD

Built 2005 Load: 59.9 t ADT: 221

OAK VALLEY DRIVE

Good

Over: TRIB / PLUMTREE RUN

0.3 MILES S OF W RIDING D, Harford, MD

Built 2005 Load: 59.9 t ADT: 55

LINDEN LANE

Good

Over: CSXT RAILROAD

0.5 MI W OF SEMINARY ROAD, Montgomery, MD

Built 1996 Load: 59.9 t ADT: 4,090

PENNYFIELD LOCK RO

Good

Over: UNNAMED TRIBUTARY

0.8 MI S OF RIVER ROAD, Montgomery, MD

Built 2017 Load: 59.9 t ADT: 529

LITTLE SENECA PKWY

Good

Over: LITTLE SENECA CREEK

0.1 MI. E. OF MD 355, Montgomery, MD

Built 2014 Load: 59.9 t ADT: 10,875

MD 200 Ramp ES

Good

Over: MD 200 (ICC) Ramp SB

0.10 Mi. West of US 29, Montgomery, MD

Built 2010 Load: 59.9 t ADT: 2,449

IS 595 RAMP A(5)

Good

Over: COBB ROAD

IS 595,IS 95-495 INT, Prince George's, MD

Built 1988 Load: 59.9 t ADT: 22,154

Showing 4,751-4,800 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.

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). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.