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

HANOVER ROAD

Fair

Over: DEEP RUN

0.3 MI W OF MD RTE 295, Anne Arundel, MD

Built 1958 Load: 24.0 t ADT: 4,585

VINEGAR HILL ROAD

Fair

Over: LITTLE GUNPOWDER FALLS

0.29 MI SE OF JERICHO RD, Baltimore, MD

Built 1894 Load: 24.0 t ADT: 552

GLENCOE ROAD

Fair

Over: GUNPOWDER FALLS

1 MI E OF YORK RD, Baltimore, MD

Built 1976 Load: 24.0 t ADT: 364

GWYNN OAK AVENUE

Fair

Over: TRIBUTARY TO DEAD RUN

0.18 MI N OF SECURITY BLV, Baltimore, MD

Built 1956 Load: 24.0 t ADT: 6,450

MD 225

Fair

Over: MATTAWOMAN CREEK

0.03 MILE EAST OF MD 224, Charles, MD

Built 1957 Load: 24.0 t ADT: 12,302

MD 355

Fair

Over: MONOCACY RIVER

2.29 MILES SOUTH OF MD 85, Frederick, MD

Built 1930 Load: 24.0 t ADT: 12,583

MANSFIELD ROAD

Fair

Over: CHERRY CREEK

0.74 MI W OF US RTE 219, Garrett, MD

Built 1986 Load: 24.0 t ADT: 97

STAFFORD ROAD

Fair

Over: HERRING RUN

0.01 MILE S OF LAPIDUM RD, Harford, MD

Built 1930 Load: 24.0 t ADT: 58

EDWARDS FERRY ROAD

Fair

Over: BROAD RUN

1 MI N OF WESTERLY ROAD, Montgomery, MD

Built 1982 Load: 24.0 t ADT: 312

MD 4 EB

Fair

Over: RACE TRACK RD

0.37 MILE SOUTH OF MD 717, Prince George's, MD

Built 1960 Load: 24.0 t ADT: 46,652

HIGH GERMANY ROAD

Fair

Over: SIDELING HILL CREEK

0.3 MI N OF IS 68, Washington, MD

Built 1961 Load: 24.0 t ADT: 153

MD 450

Fair

Over: SEVERN RIVER

0.31 MI W OF MD 648A, Anne Arundel, MD

Built 1995 Load: 24.5 t ADT: 18,874

ENTRANCE/EXIT PLAZ

Fair

Over: DAILY PARKING GARAGE

BWI DAILY GARAGE, Anne Arundel, MD

Built 2003 Load: 24.5 t ADT: 5,000

BACON ROAD

Fair

Over: FIRST MINE BRANCH

0.3 MI S OF HUNTER MILL R, Baltimore, MD

Built 1990 Load: 24.5 t ADT: 234

WINDEMERE PARKWAY

Fair

Over: DULANEY VALLEY BRANCH

0.1 MI S OF DULANEY VALLE, Baltimore, MD

Built 1959 Load: 24.5 t ADT: 643

MD 263

Fair

Over: PLUM POINT CREEK

0.16 MI E OF TOBACCO RD, Calvert, MD

Built 1928 Load: 24.5 t ADT: 692

SILVER RUN VALLEY

Fair

Over: BIG SILVER RUN

0.75 MI E OF MD 97, Carroll, MD

Built 1900 Load: 24.5 t ADT: 480

MD 17

Fair

Over: CSX TRANS., POTOMAC, MUN

ON VIRGINIA LINE, Frederick, MD

Built 1953 Load: 24.5 t ADT: 6,073

FRIENDS CREEK ROAD

Fair

Over: FRIENDS CREEK

1.5 MI NE OF EYLER VALLEY, Frederick, MD

Built 1910 Load: 24.5 t ADT: 123

ROAD

Fair

Over: OWENS CREEK

Take Hwy 77 3 miles west,, Frederick, MD

Built 1970 Load: 24.5 t ADT: 160

MD 132

Fair

Over: AMTRAK

0.19 MILE EAST OF US 40, Harford, MD

Built 1983 Load: 24.5 t ADT: 3,900

MD 20

Fair

Over: RADCLIFF CREEK

0.06 MILE EAST OF MD 514, Kent, MD

Built 1950 Load: 24.5 t ADT: 6,850

MD 290

Fair

Over: RED LION BRANCH

0.21 MILE SOUTH OF US 301, Queen Anne's, MD

Built 1900 Load: 24.5 t ADT: 2,182

MD 367

Fair

Over: BISHOPVILLE PRONG

0.05 MILE WEST OF MD 368, Worcester, MD

Built 1936 Load: 24.5 t ADT: 5,245

MD 611

Fair

Over: SINEPUXENT BAY

0.17 M S OF SOUTH PT RD, Worcester, MD

Built 1964 Load: 24.5 t ADT: 5,302

FALLS ROAD

Fair

Over: CHARLES RUN

0.1 MI S MONKTON RD, Baltimore, MD

Built 1988 Load: 24.9 t ADT: 1,200

BLUE MOUNT ROAD

Fair

Over: GUNPOWDER FALLS

1.3 MI E OF MONKTON RD, Baltimore, MD

Built 1989 Load: 24.9 t ADT: 360

HUNTER MILL ROAD

Fair

Over: FIRST MINE BRANCH

0.4 MI NE OF BACON RD, Baltimore, MD

Built 1988 Load: 24.9 t ADT: 392

COCKEYSVILLE ROAD

Fair

Over: PARKS RUN

0.17 MI W OF MD 45, Baltimore, MD

Built 1949 Load: 24.9 t ADT: 3,390

TENBURY ROAD

Fair

Over: LONG QUARTER BRANCH

100 FEET W OF MEADOWVALE, Baltimore, MD

Built 1955 Load: 24.9 t ADT: 553

RIDGEFIELD ROAD

Fair

Over: LONG QUARTER BRANCH

0.30 MI E OF MD 45, Baltimore, MD

Built 1955 Load: 24.9 t ADT: 715

CAVES ROAD

Fair

Over: NORTH BRANCH JONES FALLS

0.12 MI SW OF MD 129, Baltimore, MD

Built 1910 Load: 24.9 t ADT: 3,208

MD 578

Fair

Over: HOG CREEK

2.06 MILE EAST OF MD 331, Caroline, MD

Built 1941 Load: 24.9 t ADT: 2,672

MD 316

Fair

Over: BR OF BIG ELK CREEK

0.24 MILE NORTH OF MD 279, Cecil, MD

Built 1931 Load: 24.9 t ADT: 4,331

MD RT 213

Fair

Over: C&D CANAL

14 MI WEST OF REEDY PT., Cecil, MD

Built 1948 Load: 24.9 t ADT: 13,615

DRAWBRIDGE ROAD

Fair

Over: CHICAMACOMICO RIVER

0.22 MI. N. OF GRIF NCK R, Dorchester, MD

Built 1972 Load: 24.9 t ADT: 197

MD 550

Fair

Over: DORCUS BRANCH

0.74 MILE SOUTH OF MD 194, Frederick, MD

Built 1925 Load: 24.9 t ADT: 3,541

US 340

Fair

Over: CATOCTIN CREEK

0.63 MILE EAST OF MD 180, Frederick, MD

Built 1961 Load: 24.9 t ADT: 28,982

OAK FARM ROAD

Fair

Over: MILL BROOK

0.4 MIL E OF GLENVILLE RD, Harford, MD

Built 1988 Load: 24.9 t ADT: 102

VOLLMERHAUSEN ROAD

Fair

Over: LITTLE PATUXENT RIVER

0.2 MI W OF GUILFORD RD, Howard, MD

Built 1940 Load: 24.9 t ADT: 3,290

EAST DEER PARK DRI

Fair

Over: CSXT RAILROAD

0.6 MILES EAST OF MD 355, Montgomery, MD

Built 1945 Load: 24.9 t ADT: 7,121

MD 18B

Fair

Over: KENT ISLAND NARROWS

0.59 MILE WEST OF MD 835, Queen Anne's, MD

Built 1951 Load: 24.9 t ADT: 2,123

WARREN ROAD

Fair

Over: CAMPBELL DITCH

0.75 MI E SIXTY FOOT RD, Wicomico, MD

Built 1939 Load: 24.9 t ADT: 114

MD 636

Fair

Over: WARRIOR RUN

0.27 MI E OF MD 53, Allegany, MD

Built 1936 Load: 25.4 t ADT: 8,071

MD 658

Fair

Over: BRADDOCK RUN

0.11 MI N OF US 48, Allegany, MD

Built 1968 Load: 25.4 t ADT: 11,250

WISE AVENUE

Fair

Over: BEAR CREEK

0.9 MI W OF NORTH PT RD, Baltimore, MD

Built 1948 Load: 25.4 t ADT: 14,960

DUTTON AVENUE AND

Fair

Over: TRIBUTARY TO PATAPSCO RI

200' S. OF EDMONDSON AVE., Baltimore, MD

Built 1979 Load: 25.4 t ADT: 6,048

I-83 SB

Fair

Over: GAY STREET

0.2 MI S OF ORLEANS ST, Baltimore city, MD

Built 1975 Load: 25.4 t ADT: 80,130

MD 315

Fair

Over: MARSHYHOPE CREEK

1.11 MILE EAST OF MD 313, Caroline, MD

Built 1910 Load: 25.4 t ADT: 5,080

MD 86

Fair

Over: BR OF GUNPOWDER FALLS

1.74 MI S OF PA LINE, Carroll, MD

Built 1972 Load: 25.4 t ADT: 3,442

Showing 1,351-1,400 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.