Baltimore County, MD

787 public highway bridges

Baltimore County Bridge Snapshot

Baltimore County, Maryland contains 787 public highway bridges in the FHWA National Bridge Inventory. Roughly 20.8% are rated “Good,” 46.9% “Fair,” 2.9% “Poor,” and 2.9% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in MD are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

787

Total Bridges

20.8%

Good

2.9%

Poor

2.9%

Structurally Deficient

Condition Distribution

Good

20.8% (164)

Fair

46.9% (369)

Poor

2.9% (23)

SD

2.9% (23)

All Bridges (787)

Sort:

REGESTER AVENUE

Over: HERRING RUN

0.25 MI W OF MD 542, Baltimore, MD

Built 1965 Load: 32.7 t ADT: 2,765

SPARKS ROAD

Over: TRIBUTARY TO CARROLL BRA

0.3 MI W OF CARROLL RD, Baltimore, MD

Built 1990 Load: 32.7 t ADT: 2,525

SCOTT ADAM ROAD

Over: TRIBUTARY OF BEAVER DAM

0.09 MI E OF MD 45, Baltimore, MD

Built 1965 Load: 32.7 t ADT: 2,200

EAST HOMBERG AVENU

Over: TRIBUTARY TO DEEP CREEK

50 FT. SW. OF MD RTE 702, Baltimore, MD

Built 1975 Load: 32.7 t ADT: 2,638

WALTHER BOULEVARD

Over: WHITE MARSH RUN

0.6 MI E. EX. 31C I-695, Baltimore, MD

Built 1990 Load: 32.7 t ADT: 11,638

McDONOGH ROAD

Over: GWYNNS FALLS

0.15 MI W OF IS 795, Baltimore, MD

Built 1941 Load: 32.7 t ADT: 16,775

PRETTYBOY DAM ROAD

Over: PRETTYBOY RESERVOIR

2.6 MI N MOUNT CARMEL RD, Baltimore, MD

Built 1932 Load: 32.7 t ADT: 400

MILFORD MILL EAST

Over: TRIB OF GWYNNS FALLS

MILFORD MILL METRO, Baltimore, MD

Built 1986 Load: 32.7 t ADT: 300

I-95

Over: HONEYGO RUN

0.6 MI N OF MD 43, Baltimore, MD

Built 1963 Load: 32.7 t ADT: 172,113

MD 147

Over: GUNPOWDER FALLS

0.03 MI S OF NOTCH CLIFF, Baltimore, MD

Built 1929 Load: 33.6 t ADT: 7,982

MALVERN AVENUE

Over: TOWSON RUN

0.1 MI W CHARLES ST, Baltimore, MD

Built 1910 Load: 33.6 t ADT: 2,373

MANTUA MILL ROAD

Over: WESTERN RUN

0.07 MI E OF MD 128, Baltimore, MD

Built 1986 Load: 34.0 t ADT: 450

OREMS ROAD

Over: MIDDLE RIVER

0.3 MI S. OF MARTIN BLVD., Baltimore, MD

Built 1980 Load: 34.0 t ADT: 5,165

DANVILLE ROAD, DAL

Over: TRIBUTARY TO REDHOUSE CR

1.0MI SW US1 AND I-695, Baltimore, MD

Built 1948 Load: 34.0 t ADT: 12,981

MD 30

Over: MARYLAND MIDLAND RR

0.62 MILE NORTH OF MD 795, Baltimore, MD

Built 1936 Load: 34.5 t ADT: 18,070

IS 695 & RAMPS '4

Over: DEAD RUN

0.19 M N OF CROSBY ROAD, Baltimore, MD

Built 1961 Load: 34.5 t ADT: 188,860

WOODLAWN DRIVE

Over: DEAD RUN

0.87 MI N OF IS 70, Baltimore, MD

Built 1960 Load: 34.5 t ADT: 18,500

TOM DAY BOULEVARD

Over: EAST BRANCH HERBERT RUN

0.02 MI W OF US 1, Baltimore, MD

Built 1960 Load: 34.5 t ADT: 3,484

MD 7

Over: GUNPOWDER FALLS

1.74 MI S OF HARFORD CO, Baltimore, MD

Built 1987 Load: 35.4 t ADT: 8,863

MD 41

Over: TRIB TO HERRING RUN

0.95 MI N OF BALT CITY, Baltimore, MD

Built 1963 Load: 35.4 t ADT: 29,990

MD 146

Over: LOCH RAVEN RESERVOIR

0.48 M N OF OLD BOSLEY RD, Baltimore, MD

Built 1976 Load: 35.4 t ADT: 20,421

CUB HILL ROAD

Over: TRIBUTARY TO GUNPOWDER F

0.2 MI E OF CROMWELL BR R, Baltimore, MD

Built 1920 Load: 35.4 t ADT: 7,580

BEETREE ROAD

Over: BEETREE RUN

1.4 MI W OF MD RTE 45, Baltimore, MD

Built 1979 Load: 35.4 t ADT: 87

RUTHERFORD ROAD

Over: DEAD RUN

0.38 MI S OF WINDSOR BLVD, Baltimore, MD

Built 1968 Load: 35.4 t ADT: 3,998

MD 7

Over: HONEYGO RUN

0.07 MI S OF EBENEZER RD, Baltimore, MD

Built 1950 Load: 35.8 t ADT: 16,450

MD 147

Over: LITTLE GUNPOWDER FALLS

ON HARFORD CO LINE, Baltimore, MD

Built 1928 Load: 35.8 t ADT: 10,192

MD 695 OL

Over: AMTRAK & BACK RIVER

0.75 MILE SOUTH OF MD 150, Baltimore, MD

Built 1968 Load: 35.8 t ADT: 49,829

BEAVER DAM ROAD

Over: OREGON BRANCH

0.3 MI S OF SHAWAN ROAD, Baltimore, MD

Built 1952 Load: 35.8 t ADT: 6,171

SULPHUR SPRING ROA

Over: EAST BRANCH HERBERT RUN

INTER SELMA & SUL SPRNG, Baltimore, MD

Built 1962 Load: 35.8 t ADT: 20,845

FITCH AVENUE

Over: TRIBUTARY TO STEMMERS RU

0.2 MI E OF BELAIR RD, Baltimore, MD

Built 1979 Load: 35.8 t ADT: 2,860

MD 139

Over: TOWSON RUN

0.05 M N/TOWSONTOWN BLVD, Baltimore, MD

Built 1957 Load: 36.3 t ADT: 39,381

MARRIOTTSVILLE ROA

Over: FALLS RUN

0.28 MI W OF W CHAPEL RD, Baltimore, MD

Built 1984 Load: 36.3 t ADT: 4,050

RAMP 'X'

Over: OWINGS MILLS BOULEVARD

0.4 MI SW OF IS 795, Baltimore, MD

Built 1986 Load: 36.3 t ADT: 3,131

COVERED BRIDGE ROA

Over: TRIBUTARY TO GUNPOWDER F

0.25 NE OF NORTH END MD41, Baltimore, MD

Built 1960 Load: 36.3 t ADT: 1,947

MD 140

Over: GWYNNS FALLS

0.20 MI N OF MD 940, Baltimore, MD

Built 1973 Load: 36.7 t ADT: 33,480

MD 41

Over: TRIB TO HERRING RUN

0.4 M N OF TAYLOR AVENUE, Baltimore, MD

Built 1963 Load: 36.7 t ADT: 31,890

IS 95

Over: WEST BRANCH HERBERT RUN

0.22 MILE SOUTH OF US 1, Baltimore, MD

Built 1969 Load: 36.7 t ADT: 176,834

HARTLEY MILL ROAD

Over: LONG GREEN CREEK

0.2 MI NW OF HARFORD RD, Baltimore, MD

Built 1975 Load: 36.7 t ADT: 306

DEANWOOD ROAD

Over: TRIBUTARY TO HERRING RUN

0.2 MI E OF MD RTE 542, Baltimore, MD

Built 1966 Load: 36.7 t ADT: 4,715

MD 695 IL

Over: AMTRAK & BACK RIVER

0.75 MILE SOUTH OF MD 150, Baltimore, MD

Built 1968 Load: 37.6 t ADT: 49,829

I-895 NB

Over: AMTRAK

Milepost M2.0, Baltimore, MD

Built 1957 Load: 37.6 t ADT: 7,507

MD 158

Over: MUD FLATS

1.44 MILE WEST OF MD 151, Baltimore, MD

Built 1976 Load: 38.1 t ADT: 12,161

SUSSEX ROAD

Over: TRIBUTARY TO GWYNNS FALL

0.07 MI N OF MD 26, Baltimore, MD

Built 1969 Load: 38.1 t ADT: 442

MD 7

Over: LITTLE GUNPOWDER FALLS

ON HARFORD CO LINE, Baltimore, MD

Built 1928 Load: 38.5 t ADT: 8,520

MD 128

Over: SLADE RUN

3.05 MI E OF MD 30, Baltimore, MD

Built 1990 Load: 38.5 t ADT: 2,991

RUXTON ROAD

Over: JONES FALLS

0.02 MI W OF MD 25, Baltimore, MD

Built 1961 Load: 38.5 t ADT: 5,329

MT. WILSON LANE

Over: GWYNNS FALLS

0.03 MI S OF MD 400, Baltimore, MD

Built 1973 Load: 38.5 t ADT: 1,800

MD 25

Over: JONES FALLS

0.06 MILE SOUTH OF MD 133, Baltimore, MD

Built 1932 Load: 39.0 t ADT: 10,911

US 40

Over: STEMMERS RUN

0.39 MILES EAST OF I-695, Baltimore, MD

Built 1935 Load: 39.0 t ADT: 54,850

FRANCIS AVENUE

Over: WEST BRANCH OF HERBERT R

0.06 MI W OF OREGON AVE, Baltimore, MD

Built 1955 Load: 39.0 t ADT: 8,130

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

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 6, 2026