Carroll County, MD

205 public highway bridges

Carroll County Bridge Snapshot

Carroll County, Maryland contains 205 public highway bridges in the FHWA National Bridge Inventory. Roughly 26.3% are rated “Good,” 64.4% “Fair,” 5.4% “Poor,” and 5.4% 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.

205

Total Bridges

26.3%

Good

5.4%

Poor

5.4%

Structurally Deficient

Condition Distribution

Good

26.3% (54)

Fair

64.4% (132)

Poor

5.4% (11)

SD

5.4% (11)

All Bridges (205)

Sort:

MD 31

Over: TURKEYFOOT RUN

1.57 MILE WEST OF MD 852, Carroll, MD

Built 1963 Load: 32.7 t ADT: 5,321

MD 91

Over: BEAVER RUN

.21 MILE NORTH OF MD 879C, Carroll, MD

Built 1967 Load: 32.7 t ADT: 11,260

MD 97

Over: PINEY BRANCH

2.42 MI S OF MD 850H, Carroll, MD

Built 1982 Load: 32.7 t ADT: 8,770

DEEP RUN ROAD

Over: DEEP RUN

0.2 E OLD HANOVER ROAD, Carroll, MD

Built 1978 Load: 32.7 t ADT: 942

HOFFMAN MILL ROAD

Over: EAST BRANCH PATAPSCO RIV

1 MI W OF HOUCKSVILLE RD., Carroll, MD

Built 1991 Load: 32.7 t ADT: 751

FRIZZELLBURG ROAD

Over: MEADOW BRANCH

1.07 MILES S OF MD 832, Carroll, MD

Built 1966 Load: 33.6 t ADT: 679

MD 852

Over: LITTLE PIPE CREEK

0.04 M W OF ADAMS MILL RD, Carroll, MD

Built 1900 Load: 34.0 t ADT: 400

BARTHOLOW ROAD

Over: LITTLE MORGAN RUN

1.73 MILES N OF MD 32, Carroll, MD

Built 1968 Load: 34.0 t ADT: 4,061

TRACEYS MILL ROAD

Over: SOUTH BR GUNPOWDER FALLS

0.44 MI, Carroll, MD

Built 1978 Load: 34.5 t ADT: 1,104

MD 77

Over: BIG PIPE CREEK

1.52 MILE WEST OF MD 194, Carroll, MD

Built 1977 Load: 35.4 t ADT: 841

GRAVE RUN ROAD

Over: GUNPOWDER FALLS

0.14 MI N OF ROLLER ROAD, Carroll, MD

Built 1970 Load: 36.3 t ADT: 660

MD 97

Over: SOUTH BRANCH PATAPSCO RI

ON HOWARD CO LINE, Carroll, MD

Built 1973 Load: 36.7 t ADT: 8,770

TWIN ARCH ROAD

Over: SOUTH BR PATAPSCO RIVER

ON HOWARD COUNTY LINE, Carroll, MD

Built 1900 Load: 36.9 t ADT: 98

SPRINGDALE RD

Over: LITTLE PIPE CREEK

1.09 MILES N OF MD 31, Carroll, MD

Built 1900 Load: 37.2 t ADT: 457

MAYBERRY ROAD

Over: BIG PIPE CREEK

0.06 MI N OF UNGER RD, Carroll, MD

Built 1987 Load: 37.6 t ADT: 762

OTTERDALE MILL ROA

Over: BIG PIPE CREEK

0.25 MI S OF NASBAUM RD, Carroll, MD

Built 1930 Load: 37.6 t ADT: 1,268

CARROLLTON ROAD

Over: DEEP RUN

0.02 MI W OF LEES MILL RD, Carroll, MD

Built 1960 Load: 37.6 t ADT: 709

MD 75

Over: LITTLE PIPE CREEK

0.18 MI S OF UNION BRIDGE, Carroll, MD

Built 1922 Load: 39.0 t ADT: 4,051

MD 496

Over: BR OF BIG PIPE CREEK

3.03 MI E OF MD 97, Carroll, MD

Built 1931 Load: 39.5 t ADT: 4,042

NORTH TANNERY ROAD

Over: WEST BR PATAPSCO RIVER

0.8 MI W OF GORSUCH ROAD, Carroll, MD

Built 1974 Load: 39.5 t ADT: 200

NAYLORS MILL ROAD

Over: BIG PIPE CREEK

0.41 MI N OF MD 77, Carroll, MD

Built 1947 Load: 39.9 t ADT: 24

NINER ROAD

Over: SOUTH BRANCH MIDDLE RUN

0.59 MI N OF MD 32, Carroll, MD

Built 1974 Load: 39.9 t ADT: 756

HAPES MILL ROAD

Over: BIG PIPE CREEK

1 MI E CROUSE MILL RD, Carroll, MD

Built 1974 Load: 40.4 t ADT: 102

ADAMS MILL ROAD

Over: LITTLE PIPE CREEK

.03 MI E OF ROOPS MILL RD, Carroll, MD

Built 1974 Load: 40.8 t ADT: 75

MD 850C

Over: TALBOT BRANCH

0.03 M S OF FRANKLIN RD, Carroll, MD

Built 1931 Load: 41.7 t ADT: 999

MD 27

Over: MORGAN RUN

1.68 MILE NORTH OF MD 407, Carroll, MD

Built 1922 Load: 42.2 t ADT: 14,091

SAMS CREEK ROAD

Over: SAMS CREEK

0.2 M S OF MARSTON ROAD, Carroll, MD

Built 1989 Load: 42.6 t ADT: 906

RUNKLES ROAD

Over: MIDDLE RUN

0.57 MI N OF BOTELER RD, Carroll, MD

Built 1966 Load: 42.6 t ADT: 589

EDEN MILL ROAD

Over: TUCKERS BRANCH

0.27 MI WEST OF MD 97, Carroll, MD

Built 1969 Load: 42.6 t ADT: 1,535

CLEAR VIEW ROAD

Over: MEADOW BRANCH

1.15 MILES S OF MD 832, Carroll, MD

Built 1984 Load: 43.5 t ADT: 192

SHILOH ROAD

Over: EAST BRANCH PATAPSCO RIV

0.05 MI W OF BRODBECK RD, Carroll, MD

Built 1969 Load: 43.5 t ADT: 1,327

GREEN STREET

Over: MD MIDLAND RAILWAY

WESTMINSTER, MD, Carroll, MD

Built 1923 Load: 43.5 t ADT: 7,436

KEYSVILLE-FREDERIC

Over: MONOCACY RIVER

ON FRED CO LINE, Carroll, MD

Built 1900 Load: 44.0 t ADT: 260

MD 496

Over: BEAR BRANCH

0.76 MILE EAST OF MD 97, Carroll, MD

Built 1931 Load: 44.9 t ADT: 4,042

ROOP ROAD

Over: PINEY CREEK

.7 M SE OF BULLFROG RD, Carroll, MD

Built 1912 Load: 45.4 t ADT: 317

HUGHES ROAD

Over: BEAVER RUN

0.23 MI WEST OF MD 91, Carroll, MD

Built 1976 Load: 45.4 t ADT: 330

HARNEY ROAD

Over: PINEY CREEK

0.60 MI N OF MD 140, Carroll, MD

Built 1958 Load: 45.8 t ADT: 2,818

HALTER ROAD

Over: BIG PIPE CREEK

0.12 MI N OF STUDY RD, Carroll, MD

Built 1966 Load: 46.3 t ADT: 669

COON CLUB ROAD

Over: EAST BRANCH PATAPSCO RIV

0.15 MI E OF HOUCK RD, Carroll, MD

Built 1964 Load: 46.7 t ADT: 2,650

MD 832

Over: BIG PIPE CREEK

1.02 MILE NORTH OF MD 140, Carroll, MD

Built 1929 Load: 47.2 t ADT: 1,662

BUCKHORN ROAD

Over: BUCKHORN RUN

0.75 MI E OF FRETER ROAD, Carroll, MD

Built 1952 Load: 47.2 t ADT: 694

BRANGELS ROAD

Over: PINEY RUN

0.55 MI E OF ARRINGTON RD, Carroll, MD

Built 1974 Load: 48.5 t ADT: 3,125

MD 482

Over: CSX TRANSPORTATION

0.151 MILE WEST OF MD 20, Carroll, MD

Built 1982 Load: 49.4 t ADT: 8,632

MD 854B

Over: MORGAN RUN

3.63 MILE SOUTH OF MD 32, Carroll, MD

Built 1983 Load: 49.4 t ADT: 1,970

MD 194

Over: PINEY CREEK

.61 MILE SOUTH OF MD 194E, Carroll, MD

Built 1958 Load: 51.2 t ADT: 4,982

CROUSE MILL ROAD

Over: BIG PIPE CREEK

.15 MI S OF SHARRETT ROAD, Carroll, MD

Built 1976 Load: 51.7 t ADT: 668

WOODBINE ROAD

Over: SOUTH BRANCH PATAPSCO RI

ON HOWARD CO LINE, Carroll, MD

Built 1976 Load: 52.6 t ADT: 8,182

GREEN MILL ROAD

Over: BEAVER RUN

1.02 MILES SW OF MD 140, Carroll, MD

Built 1976 Load: 53.5 t ADT: 1,291

MD 26

Over: LIBERTY RESERVOIR

1.04 M W OF BALTO CO LINE, Carroll, MD

Built 1954 Load: 54.0 t ADT: 20,192

MD 852H

Over: WEST BRANCH PATAPSCO RIV

0.02 MILE WEST OF MD 852G, Carroll, MD

Built 1911 Load: 54.9 t ADT: 999

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 5, 2026