Harford County, MD

275 public highway bridges

Harford County Bridge Snapshot

Harford County, Maryland contains 275 public highway bridges in the FHWA National Bridge Inventory. Roughly 35.3% are rated “Good,” 49.8% “Fair,” 4.4% “Poor,” and 4.4% 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.

275

Total Bridges

35.3%

Good

4.4%

Poor

4.4%

Structurally Deficient

Condition Distribution

Good

35.3% (97)

Fair

49.8% (137)

Poor

4.4% (12)

SD

4.4% (12)

All Bridges (275)

Sort:

NORTH AVENUE

Over: BYNUM RUN

0.2 MILES EAST OF MD 924, Harford, MD

Built 2011 Load: 45.4 t ADT: 714

MD 159

Over: CRANBERRY RUN

0.22 MILE SOUTH OF US 40, Harford, MD

Built 2008 Load: 45.8 t ADT: 4,980

HOLLY OAK CIRCLE

Over: GRAYS RUN

0.1 MILES N OF MD 7, Harford, MD

Built 1999 Load: 45.8 t ADT: 173

NEAL ROAD

Over: BIG BRANCH

0.3 MILE E OF ST PAULS RD, Harford, MD

Built 1950 Load: 47.2 t ADT: 60

WHEEL ROAD

Over: BYNUM RUN

1.2 MILES NE OF MD 924, Harford, MD

Built 1996 Load: 47.6 t ADT: 6,075

MACTON ROAD

Over: BROAD CREEK

1.4 MILES SW OF MD 136, Harford, MD

Built 1955 Load: 47.6 t ADT: 162

MOORES MILL ROAD

Over: BYNUM RUN

0.3 MILES NW OF MD 22, Harford, MD

Built 2005 Load: 48.5 t ADT: 9,615

COSNER ROAD

Over: EAST BRANCH/WINTERS RUN

0.3 MI E OF PHILLIPS M RD, Harford, MD

Built 1991 Load: 49.0 t ADT: 81

SOUTH TOLLGATE ROA

Over: PLUMTREE RUN

0.38 MI. N. PLUMTREE RD., Harford, MD

Built 2019 Load: 49.0 t ADT: 225

COOLEY MILL ROAD

Over: ROCK RUN

0.7 MI SE OF ROCK RUN RD, Harford, MD

Built 1997 Load: 49.4 t ADT: 200

CHESTNUT HILL ROAD

Over: STOUT BOTTLE BRANCH

0.6 MILES NW OF MD 543, Harford, MD

Built 2020 Load: 49.9 t ADT: 681

TURNER ROAD

Over: TRIB / L GUNPOWDER FALLS

0.4 MILES N OF POCOCK RD, Harford, MD

Built 2003 Load: 50.3 t ADT: 101

BAILEY ROAD

Over: SOUTH STIRRUP RUN

0.5 MI E OF SHARON ACR RD, Harford, MD

Built 1953 Load: 50.3 t ADT: 155

GREENE ROAD

Over: SAW MILL BRANCH

0.3 MILES NE OF BALT CO, Harford, MD

Built 1952 Load: 50.8 t ADT: 616

GLEN COVE ROAD

Over: PEDDLER RUN

1.4 MI NE MD 136, Harford, MD

Built 1930 Load: 50.9 t ADT: 890

MANDEVILLE ROAD

Over: TRIBUTARY TO LITTLE GUNP

0.3 MILES N OF MD 7, Harford, MD

Built 1985 Load: 51.2 t ADT: 101

HARMONY CHURCH RD

Over: MILL BROOK

1.4 MILES E OF MD 136, Harford, MD

Built 1933 Load: 52.6 t ADT: 133

GILBERT ROAD

Over: CARSINS RUN

0.5 MILES N MD 22, Harford, MD

Built 1960 Load: 53.1 t ADT: 1,000

PHILLIPS MILL ROAD

Over: EAST BRANCH/ WINTERS RUN

0.6 MILES W OF MD 23, Harford, MD

Built 2020 Load: 55.1 t ADT: 434

RYAN ROAD

Over: BREAD AND CHEESE BRANCH

1.1 MILES NORTH OF MD 152, Harford, MD

Built 2008 Load: 55.3 t ADT: 1,530

MD 136

Over: JAMES RUN

1.6 MILES NORTH OF MD 543, Harford, MD

Built 2006 Load: 56.2 t ADT: 6,361

SNAKE LANE

Over: JAMES RUN

0.21 MI E OF MD 136, Harford, MD

Built 2019 Load: 56.7 t ADT: 529

PENNINGTON ROAD

Over: THOMAS RUN

0.2 MILE E OF THOMAS R RD, Harford, MD

Built 1975 Load: 57.6 t ADT: 249

OLD SOUTHAMPTON RO

Over: BYNUM RUN

0.6 MILES S OF MD 543, Harford, MD

Built 1930 Load: 57.6 t ADT: 51

BOTTOM ROAD

Over: OVERSHOT BRANCH

0.03 MILES N OF GUYTON RD, Harford, MD

Built 1978 Load: 58.0 t ADT: 300

SINGER ROAD

Over: MOUNTAIN BRANCH

1.7 MILES E OF MD 152, Harford, MD

Built 2003 Load: 58.5 t ADT: 4,530

DRY BRANCH ROAD

Over: TRIB / DEER CREEK

0.4 MILES W OF MD 23, Harford, MD

Built 1999 Load: 58.5 t ADT: 82

CEDARDAY DRIVE

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

Over: TRIB / PLUMTREE RUN

0.3 MILES S OF W RIDING D, Harford, MD

Built 2005 Load: 59.9 t ADT: 55

MADONNA ROAD

Over: CATTAIL BRANCH

0.4 MILE S OF MT HOREB RD, Harford, MD

Built 1992 Load: 60.3 t ADT: 789

EDEN MILL ROAD

Over: BIG BRANCH

0.4 MILES W OF FAWN GR RD, Harford, MD

Built 1961 Load: 60.9 t ADT: 177

MD 623

Over: BROAD CREEK

2.63 MI S OF PA LINE, Harford, MD

Built 1998 Load: 63.5 t ADT: 1,120

SCHUCKS PARK ROAD

Over: BROAD RUN

0.2 MI. E. OF SCHUCKS RD, Harford, MD

Built 2012 Load: 63.9 t ADT: 306

HARFORD CREAMERY R

Over: TRIB / LITTLE DEER CREEK

0.5 MILES N OF LEMON RD, Harford, MD

Built 2015 Load: 64.2 t ADT: 500

SCHUSTER ROAD

Over: WEST BRANCH/ WINTERS RUN

0.2 MILES E OF MD 146, Harford, MD

Built 1999 Load: 64.9 t ADT: 4,200

RIDGE ROAD

Over: BROAD CREEK

2.2 MILES SW OF MD 136, Harford, MD

Built 1979 Load: 65.3 t ADT: 169

RUFFS MILL ROAD

Over: TRIB / THOMAS RUN

0.8 MILES SE OF US 1, Harford, MD

Built 2011 Load: 65.8 t ADT: 1,007

FAWN GROVE ROAD

Over: DEER CREEK

0.8 MILES N OF MD 165, Harford, MD

Built 1978 Load: 66.7 t ADT: 978

MACTON ROAD

Over: TRIB / BROAD CREEK

0.31 MI SW OF MD 136, Harford, MD

Built 2014 Load: 67.6 t ADT: 212

OAKINGTON ROAD

Over: GASHEYS CREEK

0.8 MILES S OF MD 132, Harford, MD

Built 1993 Load: 67.6 t ADT: 1,330

CARRS MILL ROAD

Over: WINTERS RUN

1.4 MILES N OF MD 152, Harford, MD

Built 1991 Load: 68.5 t ADT: 8,285

WEST CHAPEL ROAD

Over: SWAN CREEK

0.6 MILES S OF MD 156, Harford, MD

Built 1930 Load: 69.7 t ADT: 365

DURHAM ROAD

Over: WEST BRANCH and WINTERS

0.01 MI E OF CHARLES ST, Harford, MD

Built 1995 Load: 69.8 t ADT: 1,770

CLOVERFIELD DRIVE

Over: TRIBUTARY OF BYNUM RUN

0.1 MI. E. of Tyrell Ct, Harford, MD

Built 2023 Load: 71.6 t ADT: 250

MD 7

Over: JAMES RUN

0.28 MILE NORTH OF MD 136, Harford, MD

Built 2014 Load: 73.9 t ADT: 12,500

BRIERHILL DRIVE

Over: BYNUM RUN

0.4 MILES S OF MD 22, Harford, MD

Built 1987 Load: 75.3 t ADT: 9,278

MD 7

Over: WINTERS RUN

0.33 M S OF EDGEWOOD ROAD, Harford, MD

Built 1991 Load: 84.8 t ADT: 7,300

MT HOREB ROAD

Over: LITTLE DEER CREEK

1.2 MILES NW OF MD 165, Harford, MD

Built 1955 Load: 85.7 t ADT: 751

MD 24

Over: MD 924

0.53 MI NORTH OF I-95, Harford, MD

Built 2011 Load: 87.5 t ADT: 72,060

BEAR CREEK DRIVE

Over: BEAR CABIN BRANCH

0.2 MI N OF BERNADETTE DR, Harford, MD

Built 1980 Load: 90.2 t ADT: 1,111

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