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%.

Condition Distribution

Maryland32.7%62%GoodFairPoor
Bridge inventory deck-condition mix - Maryland (FHWA NBI)

Counties (24)

Allegany 245 Anne Arundel 395 Baltimore 787 Baltimore city 380 Calvert 33 Caroline 70 Carroll 205 Cecil 194 Charles 94 Dorchester 47 Frederick 491 Garrett 139 Harford 275 Howard 310 Kent 44 Montgomery 522 Prince George's 582 Queen Anne's 88 Somerset 46 St. Mary's 50 Talbot 42 Washington 301 Wicomico 100 Worcester 82

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.

OLD SELBYSPORT RD

Poor

Over: BEAR CREEK

0.01 MI N OF WALNUT ST, Garrett, MD

Built 1920 Load: 2.7 t ADT: 30

ZION ROAD

Poor

Over: HAWLINGS RIVER

2.8 MILES NORTH OF MD 108, Montgomery, MD

Built 1930 Load: 4.5 t ADT: 2,440

ROXBURY ROAD

Poor

Over: BEAVER CREEK

0.1 MI W OF ALT US RTE 40, Washington, MD

Built 1920 Load: 7.3 t ADT: 533

TUFTON AVENUE

Poor

Over: WATERSPOUT RUN

2.63 MI. WEST MD 25, Baltimore, MD

Built 1920 Load: 7.7 t ADT: 7,735

MOHRS LANE

Poor

Over: CSX RAILROAD

0.1 MI NW OF US RTE 40, Baltimore, MD

Built 1912 Load: 9.1 t ADT: 1,600

OLD MONTGOMERY RD

Poor

Over: LITTLE PATUXENT RIVER

0.5 MI W OF US RTE 29, Howard, MD

Built 1935 Load: 10.0 t ADT: 10

All Bridges in Maryland

GAS HOUSE PIKE

Good

Over: LINGANORE CREEK

1.0 MI W OF CNTRL CHURCH, Frederick, MD

Built 2021 Load: 41.5 t ADT: 11,825

Watkins Mill Road

Good

Over: IS 270 (Wash. Nat'l Pike

0.75 MI. N of MD 124, Montgomery, MD

Built 2020 Load: 41.5 t

MD 97

Good

Over: Reddy Branch

2 MI. NORTH OF OLNEY, Montgomery, MD

Built 2022 Load: 41.5 t ADT: 10,400

PINEY MEETINGHOUSE

Good

Over: WATTS BRANCH

0.8 MILES NORTH OF MD 190, Montgomery, MD

Built 2017 Load: 41.5 t ADT: 6,724

MD 61 (CANAL PKWY)

Good

Over: C & O CANAL

0.13 MILE N OF W VA LINE, Allegany, MD

Built 1997 Load: 41.7 t ADT: 11,501

SECOND LEVEL ENTRA

Good

Over: NORTH END OF CONSOLIDATE

CRCF - BWI AIRPORT, Anne Arundel, MD

Built 2003 Load: 41.7 t ADT: 113

MD 45

Good

Over: BEAVERDAM RUN

0.11 M N OF RAILROAD AVE, Baltimore, MD

Built 1990 Load: 41.7 t ADT: 30,482

MD 695 RAMP 7'A'

Good

Over: NORTHEAST CREEK

@ MD 695 & MD 702, Baltimore, MD

Built 1972 Load: 41.7 t ADT: 7,951

OWINGS MILLS BOULE

Good

Over: RED RUN

1 MI SOUTH OF IS 795, Baltimore, MD

Built 1990 Load: 41.7 t ADT: 36,114

NICODEMUS ROAD

Good

Over: LIBERTY RESERVOIR

0.4 MI W IVY MILL RD, Baltimore, MD

Built 2011 Load: 41.7 t ADT: 3,510

MD 509

Good

Over: GOVERNOR RUN

0.79 MI E OF MD 765, Calvert, MD

Built 2002 Load: 41.7 t ADT: 791

OLD ANNAPOLIS ROAD

Good

Over: LINGANORE CREEK

0.9 MI W OF MD 75, Frederick, MD

Built 1989 Load: 41.7 t ADT: 2,931

SANNER ROAD

Good

Over: TRIB OF MIDDLE PATUXENT

0.3 MI S PINDELL SCHOOL, Howard, MD

Built 2003 Load: 41.7 t ADT: 2,493

I-370 RAMP - B

Good

Over: CRABBS BRANCH WAY

0.56 MI E OF MD 355, Montgomery, MD

Built 2009 Load: 41.7 t ADT: 3,953

MD 200 (ICC) WB

Good

Over: TRIBUTARY OF NBRC

1.34 MI W OF MD 97, Montgomery, MD

Built 2010 Load: 41.7 t ADT: 30,827

EMORY LANE

Good

Over: MD 200 (ICC)

0.93 MI W OF MD 97, Montgomery, MD

Built 2010 Load: 41.7 t ADT: 8,133

MD200 Ramp I-A

Good

Over: MD200 & I-95

MD200 EB RAMP I-A TO I-95, Prince George's, MD

Built 2010 Load: 41.7 t ADT: 12,656

MD 362

Good

Over: MONIE CREEK

3.31 MILES WEST OF US 13, Somerset, MD

Built 2009 Load: 41.7 t ADT: 1,622

MD 404 ALT

Good

Over: NORWICH CREEK

0.25 MI E OF MD 404, Talbot, MD

Built 1995 Load: 41.7 t ADT: 280

LEITERS MILL ROAD

Good

Over: ANTIETAM CREEK

0.2 MI N OF MD RTE 60, Washington, MD

Built 1839 Load: 41.7 t ADT: 1,470

US 113

Good

Over: CHURCH BRANCH

0.312 MILE N OF MD 589, Worcester, MD

Built 2001 Load: 41.7 t ADT: 14,192

GAS HOUSE PIKE

Good

Over: LINGANORE CREEK

1.0 MI W OF CNTRL CHURCH, Frederick, MD

Built 2021 Load: 41.8 t ADT: 11,825

LEWISTOWN ROAD

Good

Over: FISHING CREEK

0.3 MI E OF HESSONG BRDG, Frederick, MD

Built 1920 Load: 41.8 t ADT: 466

GORE MILL ROAD

Good

Over: LITTLE FALLS

1.4 MI NE MIDDLETOWN RD, Baltimore, MD

Built 2018 Load: 42.1 t ADT: 193

Harford Road

Good

Over: Herring Run Trail

0.4 MI S ARGONNE DRIVE, Baltimore city, MD

Built 2022 Load: 42.1 t ADT: 20,994

MD 464 (POINT OF R

Good

Over: LITTLE CATOCTIN CREEK

2.16 MILES EAST OF MD 17, Frederick, MD

Built 2020 Load: 42.1 t ADT: 4,400

CHRISTOPHERS CROSS

Good

Over: TRIBUTARY 89

0.2 MI E OF WATER MARTZ R, Frederick, MD

Built 2019 Load: 42.1 t ADT: 4,430

ELMHIRST PARKWAY

Good

Over: ROCK CREEK TRIBUTARY

0.3 MI N OF CEDAR LANE, Montgomery, MD

Built 2016 Load: 42.1 t ADT: 718

SPINE RD

Good

Over: MD 5

9 MI S OF I95/495, Prince George's, MD

Built 2018 Load: 42.1 t ADT: 17,425

MD 381

Good

Over: TIMOTHY BRANCH

325' North of Kathleen La, Prince George's, MD

Built 2018 Load: 42.1 t ADT: 9,000

IS 68 EBR

Good

Over: TOWN CREEK

0.24 M E OF BR NO 0114000, Allegany, MD

Built 1990 Load: 42.2 t ADT: 18,551

IS 68 WBR

Good

Over: TOWN CREEK

0.24 M E OF BR NO 0114000, Allegany, MD

Built 1990 Load: 42.2 t ADT: 18,551

BIG FALLS ROAD

Good

Over: LITTLE FALLS

125 FT NE OF BERNOUDY, Baltimore, MD

Built 1986 Load: 42.2 t ADT: 1,405

GWYNNBROOK AVENUE

Good

Over: ROACHES RUN

0.38 MI E OF MD 140, Baltimore, MD

Built 1976 Load: 42.2 t ADT: 4,304

MOUNT STREET

Good

Over: AMTRAK RAILROAD

0.1 MI E OF MONROE ST, Baltimore city, MD

Built 1997 Load: 42.2 t ADT: 3,077

I-895 SB

Good

Over: HERRING RUN

MILEPOST M13.7, Baltimore city, MD

Built 1957 Load: 42.2 t ADT: 35,344

CARPENTERS PT ROAD

Good

Over: UNNAMED STREAM

0.68 MI S OF MD 267, Cecil, MD

Built 2013 Load: 42.2 t ADT: 755

LITTLE SENECA PKWY

Good

Over: LITTLE SENECA CREEK TRIB

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

Built 2011 Load: 42.2 t ADT: 10,542

Ramp NW to MD200WB

Good

Over: US29, Ramp NB&SE, MD200

0.4 Mi S of Briggs Chaney, Montgomery, MD

Built 2011 Load: 42.2 t ADT: 2,294

MD 725

Good

Over: WESTERN BRANCH

0.41 MILE EAST OF MD 717, Prince George's, MD

Built 1992 Load: 42.2 t ADT: 15,371

EARTH CARE ROAD

Good

Over: CONOCOCHEAGUE CREEK

0.4 MI NORTH OF US 40, Washington, MD

Built 2000 Load: 42.2 t ADT: 721

ROWLAND ROAD

Good

Over: BASIN RUN

0.26 MI S OF COLORA RD, Cecil, MD

Built 2011 Load: 42.4 t ADT: 331

RAZOR STRAP ROAD

Good

Over: STONY RUN

0.47 MI W OF US 40, Cecil, MD

Built 2017 Load: 42.4 t ADT: 1,613

STAFFORD ROAD

Good

Over: DEER CREEK

0.03 MI N OF CRAIGS CR RD, Harford, MD

Built 1951 Load: 42.4 t ADT: 469

NEW PARK ROAD

Good

Over: ISLAND BRANCH

0.78 MI. NE OF ROUTE 23, Harford, MD

Built 2019 Load: 42.4 t ADT: 395

SNOUFFER SCHOOL RO

Good

Over: CABIN BRANCH

1.3 MI N OF MD124, Montgomery, MD

Built 2020 Load: 42.4 t ADT: 18,315

CONNECTOR ROAD

Good

Over: NSA PERIMETER ROAD

2.0 MILES FROM MD ROUTE 1, Anne Arundel, MD

Built 1988 Load: 42.6 t ADT: 14,000

OLD COURT ROAD

Good

Over: SCOTTS LEVEL BRANCH

300 FEET W OF WINANDS RD, Baltimore, MD

Built 1964 Load: 42.6 t ADT: 1,115

MD 478

Good

Over: BR OF POTOMAC RIVER

1.78 MI S. EAST OF MD 180, Frederick, MD

Built 2019 Load: 42.6 t ADT: 2,471

SPRUCE RUN ROAD

Good

Over: MIDDLE CREEK

0.1 MI N OF MD RTE 17, Frederick, MD

Built 1982 Load: 42.6 t ADT: 181

Showing 4,301-4,350 of 5,527 bridges

Related

All states → | National rankings → | Understanding conditions → | Retired SD term explained →
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.

Understanding Bridge Conditions

How FHWA rates bridge condition on a 0-9 scale.

Check Your Daily Bridges

How to look up bridge condition data for bridges on your route.

Read our methodology — how this data is sourced, computed, and verified.

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.