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

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

UPPER BECKLEYSVILL

Poor

Over: MURPHY RUN

0.05 MI E OF GROSS MIL RD, Carroll, MD

Built 1960 Load: 10.9 t ADT: 1,745

POPLAR HILL ROAD

Poor

Over: ZEKIAH SWAMP RUN

2.5 MI E OF MD 5, Charles, MD

Built 1969 Load: 11.3 t ADT: 4,644

POFFENBERGER ROAD

Poor

Over: CATOCTIN CREEK

1.1 MILES EAST OF MD 383, Frederick, MD

Built 1878 Load: 11.8 t ADT: 375

FAYETTE STREET

Poor

Over: CSXT RAILROAD

.08 MI W OF CUMBERLAND ST, Allegany, MD

Built 1885 Load: 12.2 t ADT: 109

LOST LAND RUN ROAD

Poor

Over: TRIBUTARY OF LOST LAND R

POTOMAC GARRETT ST FOREST, Garrett, MD

Built 1920 Load: 12.2 t ADT: 5

TIBER ALLEY

Poor

Over: TIBER RIVER

0.01 MI S MAIN STREET, Howard, MD

Built 1935 Load: 12.2 t ADT: 45

GREEN SPRING ROAD

Poor

Over: NORTH BRANCH OF POTOMAC

0.3 MI S OF MD RTE 51, Allegany, MD

Built 1937 Load: 12.7 t ADT: 880

SMITHVILLE ROAD

Poor

Over: SULLIVAN BRANCH

2.3 MI NE OF FEDERALSBURG, Caroline, MD

Built 1946 Load: 12.7 t ADT: 545

NOBLES MILL ROAD

Poor

Over: DEER CREEK

0.8 MI E MAIN ST, Harford, MD

Built 1883 Load: 12.7 t ADT: 70

DAISY ROAD

Poor

Over: LITTLE CATTAIL CREEK

0.3 MI N JENNINGS CHAPEL, Howard, MD

Built 1935 Load: 12.7 t ADT: 1,525

APPLETOWN ROAD

Poor

Over: TRIBUTARY OF DOG CREEK

0.05 MI E OF MD RTE 67, Washington, MD

Built 1920 Load: 12.7 t ADT: 172

RUSSELL ROAD

Poor

Over: BASIN RUN

0.24 MI W OF COLORA RD, Cecil, MD

Built 1930 Load: 13.2 t ADT: 94

DOGWOOD ROAD

Poor

Over: DOGWOOD RUN

200' SW OF HOLLIFIELD RD, Baltimore, MD

Built 1929 Load: 13.6 t ADT: 3,062

GARRETT PARK ROAD

Poor

Over: ROCK CREEK

100 FT W OF BEACH DRIVE, Montgomery, MD

Built 1965 Load: 13.6 t ADT: 3,554

YARROWSBURG ROAD

Poor

Over: ISRAEL CREEK

0.3 MI W OF MD RTE 67, Washington, MD

Built 1940 Load: 13.6 t ADT: 687

PINEY GROVE ROAD

Poor

Over: CSX RAILROAD

0.1 MI SE OF OLD HANOVER, Baltimore, MD

Built 1907 Load: 14.1 t ADT: 551

BUFFALO RUN ROAD

Poor

Over: BUFFALO RUN

0.2 MI NE OF MD RTE 42, Garrett, MD

Built 1989 Load: 14.1 t ADT: 48

OLD LANDOVER ROAD

Poor

Over: BEAVERDAM CREEK

0.14 MI N OF MD 202, Prince George's, MD

Built 1966 Load: 14.1 t ADT: 163

JACOBS ROAD

Poor

Over: MAPLE RUN

5.61 MI. S. OF I-68, Allegany, MD

Built 1978 Load: 15.0 t ADT: 22

HOOKERS MILL ROAD

Poor

Over: BYNUM RUN

0.8 MILES W OF MD 136, Harford, MD

Built 1957 Load: 15.0 t ADT: 3,986

MARSH ROAD

Poor

Over: SHANKS CREEK

SMITH ISLAND, Somerset, MD

Built 1971 Load: 15.0 t ADT: 50

CORNFIELD HARBOR D

Poor

Over: POINT LOOKOUT CREEK

1 Mile South of SR 5, St. Mary's, MD

Built 1970 Load: 15.0 t ADT: 150

WILDWOOD AVENUE

Poor

Over: TRIBUTARY TO HERRING RUN

0.12 MI E OF OAKLEIGH AVE, Baltimore, MD

Built 1960 Load: 15.4 t ADT: 200

MARUMSCO ROAD

Poor

Over: MARUMSCO CREEK

1.5 MI WEST OF MARUMSCO, Somerset, MD

Built 1950 Load: 15.6 t ADT: 141

FAIRVIEW AVENUE

Poor

Over: CARROLL CREEK

0.2 MI SOUTH OF US 15, Frederick, MD

Built 1963 Load: 16.3 t ADT: 2,674

ABINGDON ROAD

Poor

Over: CSX RAILROAD

0.1 MILES N OF US 40, Harford, MD

Built 1940 Load: 16.3 t ADT: 9,272

WARREN ROAD

Poor

Over: GUNPOWDER FALLS

2.3 MI E YORK RD, Baltimore city, MD

Built 1923 Load: 16.8 t ADT: 6,234

FLEMING MILL ROAD

Poor

Over: DIVIDING CREEK

WOR-SOMER CO LINE, Worcester, MD

Built 1974 Load: 16.8 t ADT: 90

MANTUA MILL ROAD

Poor

Over: DEADMAN RUN

0.7 MI N OF TUFTON AVE, Baltimore, MD

Built 1930 Load: 17.2 t ADT: 388

MCKINSTRYS MILL RD

Poor

Over: SAMS CREEK

ON FREDERICK CO LINE, Carroll, MD

Built 1972 Load: 17.2 t ADT: 119

BESTPITCH FERRY RD

Poor

Over: TRANSQUAKING RIVER

0.1 MI W OF GRIF NECK RD, Dorchester, MD

Built 1946 Load: 17.2 t ADT: 93

GREGG ROAD

Poor

Over: GAREY MILL POND BRANCH

2.5 MILES NORTH OF MD 317, Caroline, MD

Built 1950 Load: 17.7 t ADT: 40

ALAN FIKE ROAD

Poor

Over: MILL RUN

0.02 MI S MILL RUN ROAD, Garrett, MD

Built 1935 Load: 17.7 t ADT: 11

OLD KAYS MILL ROAD

Poor

Over: BEAVER RUN

AT HUGHES ROAD, Carroll, MD

Built 1974 Load: 18.1 t ADT: 209

MOUTH OF MONOCACY

Poor

Over: LITTLE MONOCACY RIVER

0.5 MI E OF MT EPHRAM RD, Montgomery, MD

Built 1971 Load: 18.1 t ADT: 79

VALLEYWOOD DRIVE

Poor

Over: JOSEPH'S BRANCH

0.5 MI. EAST OF ROUTE 185, Montgomery, MD

Built 1960 Load: 18.1 t ADT: 706

HOTEL ROAD

Poor

Over: CAREY BRANCH

0.13 MI N OF HAMMOND ROAD, Worcester, MD

Built 1989 Load: 18.1 t ADT: 110

LITTLE ORLEANS ACC

Poor

Over: C&O CANAL

Little Orleans Campground, Allegany, MD

Built 1969 Load: 18.6 t ADT: 72

BLOOMERY ROAD

Poor

Over: MARSHYHOPE CREEK

1.19 MILES SW OF DELAWARE, Caroline, MD

Built 1951 Load: 18.6 t ADT: 540

BUFFALO RUN ROAD

Poor

Over: BUFFALO RUN

0.37 MI NE OF MD RTE 42, Garrett, MD

Built 1989 Load: 18.6 t ADT: 44

DARGAN BEND ACCESS

Poor

Over: C&O CANAL

Harpers Ferry Road to Bac, Washington, MD

Built 1969 Load: 18.8 t ADT: 159

OLD MILL ROAD

Poor

Over: MARYLAND MIDLAND RAILROA

1000 FEET SOUTH OF MD 77, Frederick, MD

Built 1975 Load: 19.0 t ADT: 97

ERICSSON ROAD

Poor

Over: CLARA BARTON PARKWAY

1.3 MILES SOUTH OF I-495., Montgomery, MD

Built 1962 Load: 19.0 t ADT: 16,120

TUNIS MILLS ROAD

Poor

Over: LEEDS CREEK

6 MI NW OF EASTON, Talbot, MD

Built 1963 Load: 19.0 t ADT: 820

LONG SWAMP ROAD

Poor

Over: SULLIVAN BRANCH

1.3 MI SE OF AGNER, Caroline, MD

Built 1953 Load: 19.5 t ADT: 106

Showing 5,301-5,350 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.