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:

FASHION WAY

Over: TRIB / WINTERS RUN

0.5 MILES N OF MD 7, Harford, MD

Built 1972 Load: 28.6 t ADT: 565

PLEASANTVILLE ROAD

Over: WINTERS RUN

1.5 MILES N OF MD 152, Harford, MD

Built 1958 Load: 28.6 t ADT: 3,320

US 1 BU

Over: BYNUM RUN

.06 M N OF MOORES MILL RD, Harford, MD

Built 1953 Load: 29.0 t ADT: 11,230

CHESTNUT HILL ROAD

Over: CABBAGE RUN

0.7 MILES NW OF MD 543, Harford, MD

Built 1938 Load: 29.0 t ADT: 642

MD 646

Over: BROAD CREEK

0.77 MILE NORTH OF MD 543, Harford, MD

Built 1933 Load: 29.5 t ADT: 1,140

MD 7

Over: GRAYS RUN

1.01 MILES SOUTH OF US 40, Harford, MD

Built 1925 Load: 29.9 t ADT: 12,210

MD 136

Over: ISLAND BRANCH

1.0 MILE SOUTH OF MD 23, Harford, MD

Built 1935 Load: 30.4 t ADT: 1,901

GREEN ROAD

Over: DEER CREEK

0.2 MILES E OF BALT CO, Harford, MD

Built 1900 Load: 30.4 t ADT: 155

US 40

Over: SWAN CREEK

0.26 MILE WEST OF MD 132B, Harford, MD

Built 1935 Load: 30.8 t ADT: 27,800

CEDAR LANE

Over: TRIB / BYNUM RUN

0.8 MILES W OF MD 136, Harford, MD

Built 1971 Load: 30.8 t ADT: 125

MD 543

Over: BR OF BYNUM RUN

0.3 MILE NORTH OF MD 136, Harford, MD

Built 1936 Load: 31.3 t ADT: 14,221

QUAKER BOTTOM ROAD

Over: ROCK RUN

0.01 MIL S OF ROCK RUN RD, Harford, MD

Built 1982 Load: 31.3 t ADT: 220

FALLING BRANCH RD

Over: FALLING BRANCH

0.6 MI W OF CLERMONT M RD, Harford, MD

Built 1973 Load: 31.7 t ADT: 22

US 1 BU

Over: WINTERS RUN

0.87 MILE NORTH OF US 1, Harford, MD

Built 1930 Load: 32.7 t ADT: 20,564

US 1 & RAMP C(2)

Over: BYNUM RUN

0.25 MILE NORTH OF MD 24, Harford, MD

Built 1964 Load: 32.7 t ADT: 23,320

MD 165

Over: BROAD CREEK

0.4 MILE NORTH OF MD 543, Harford, MD

Built 1959 Load: 32.7 t ADT: 5,772

MD 462

Over: SWAN CREEK

0.84 MILE NORTH OF MD 22, Harford, MD

Built 1978 Load: 32.7 t ADT: 7,401

MD 543

Over: DEER CREEK

1.47 MILES S OF MD 440, Harford, MD

Built 1932 Load: 32.7 t ADT: 7,736

LAKE FANNY ROAD

Over: WINTERS RUN

0.2 MILES S OF US 1, Harford, MD

Built 1913 Load: 32.7 t ADT: 11

OLD FALLSTON ROAD

Over: MA & PA RAILROAD (ABAND)

0.3 MILES S OF MD 152, Harford, MD

Built 1930 Load: 32.7 t ADT: 2,210

CLAYTON ROAD

Over: MOUNTAIN BRANCH

0.3 MILES W OF SINGER RD, Harford, MD

Built 1970 Load: 32.7 t ADT: 766

I-95

Over: GRAYS RUN

Milepost M83.1, Harford, MD

Built 1963 Load: 32.7 t ADT: 116,162

I-95

Over: SUSQUEHANNA RIVER,PA RR

HARFORD-CECIL CO LINE, Harford, MD

Built 1963 Load: 32.7 t ADT: 86,430

RECKORD ROAD

Over: WILDCAT BRANCH

0.1 MILES S OF US 1, Harford, MD

Built 1957 Load: 33.1 t ADT: 961

HESS ROAD

Over: YELLOW BRANCH

0.5 MILES E OF MD 146, Harford, MD

Built 1950 Load: 33.1 t ADT: 8,065

MD 132B

Over: AMTRAK

0.03 MILE SOUTH OF US 40, Harford, MD

Built 1943 Load: 33.6 t ADT: 3,563

FALLING BRANCH RD

Over: FALLING BRANCH

0.7 MI NE OF RED BRIDGE R, Harford, MD

Built 1973 Load: 34.0 t ADT: 25

ROCK RUN ROAD

Over: ROCK RUN

0.01 MI E OF WILKINSON RD, Harford, MD

Built 1955 Load: 34.5 t ADT: 154

TAYLOR ROAD

Over: BROAD CREEK

0.7 MILES E OF MD 543, Harford, MD

Built 1974 Load: 34.9 t ADT: 44

CARSINS RUN ROAD

Over: CARSINS RUN

0.03 MILES N OF MD 22, Harford, MD

Built 1972 Load: 35.4 t ADT: 655

MD 7

Over: BYNUM RUN

0.17 MILE SOUTH OF MD 136, Harford, MD

Built 1923 Load: 35.8 t ADT: 11,350

MD 132B

Over: SWAN CREEK

0.33 MILE SOUTH OF US 40, Harford, MD

Built 1930 Load: 35.8 t ADT: 4,030

MD 24

Over: DEER CREEK

2.17 MILES S OF MD 165, Harford, MD

Built 1934 Load: 36.3 t ADT: 3,930

SPESUTIA ROAD

Over: CRANBERRY RUN

0.2 MILES N OF MD 159, Harford, MD

Built 1966 Load: 36.3 t ADT: 4,242

PALMER ROAD

Over: ROMNEY CREEK

80 YDS W OF OLD BALTIMORE, Harford, MD

Built 1942 Load: 36.3 t ADT: 100

MD 24

Over: BR OF DEER CREEK

0.42 M S OF DAVIS ROAD, Harford, MD

Built 1986 Load: 37.6 t ADT: 3,193

RED BRIDGE ROAD

Over: FALLING BRANCH

0.3 MILES E OF FAWN GR RD, Harford, MD

Built 1975 Load: 37.6 t ADT: 113

PROSPECT ROAD

Over: DEEP CREEK

1.1 MILES N OF MD 136, Harford, MD

Built 1950 Load: 37.6 t ADT: 575

LEWIS LANE

Over: AMTRAK RAILROAD

0.1 MILES E OF US 40, Harford, MD

Built 1980 Load: 37.6 t ADT: 5,745

MD 165

Over: LITTLE DEER CREEK

2.35 MILES SOUTH OF MD 24, Harford, MD

Built 1930 Load: 38.5 t ADT: 6,673

BYNUM ROAD

Over: BYNUM RUN

0.5 MILES NE OF MD 24, Harford, MD

Built 1976 Load: 38.5 t ADT: 4,310

POTEET ROAD

Over: EAST BRANCH/WINTERS RUN

0.01 M W OF PHILLIPS M RD, Harford, MD

Built 1995 Load: 38.5 t ADT: 35

US 40

Over: BUSH CREEK

3.24 MILES EAST OF MD 24, Harford, MD

Built 1935 Load: 39.5 t ADT: 21,093

HEAPS ROAD

Over: BROAD CREEK

0.5 MILES NE OF MD 543, Harford, MD

Built 1979 Load: 40.4 t ADT: 529

US 40

Over: OTTER POINT CREEK

0.10 MILE EAST OF MD 24, Harford, MD

Built 1935 Load: 40.8 t ADT: 21,093

MD 24 SBR

Over: CSX TRANS.

0.3 MILE SOUTH OF MD 7, Harford, MD

Built 1970 Load: 40.8 t ADT: 20,242

MD 24

Over: TRIB. TO OTTER POINT CRE

0.13 MILE NORTH OF MD 755, Harford, MD

Built 1969 Load: 40.8 t ADT: 24,240

MD 22

Over: AMTRAK, TRIB TO SWAN CR

0.06 MILE EAST OF US 40, Harford, MD

Built 1968 Load: 41.3 t ADT: 22,420

US 40 & RMPS 5 & 6

Over: BR OF SWAN CREEK

0.03 MILE SOUTH OF MD 22, Harford, MD

Built 1968 Load: 41.7 t ADT: 26,751

ST CLAIR BRIDGE RD

Over: DEER CREEK

1.0 MILES S OF MD 165, Harford, MD

Built 1954 Load: 41.7 t ADT: 563

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