Allegany County, MD

245 public highway bridges

Allegany County Bridge Snapshot

Allegany County, Maryland contains 245 public highway bridges in the FHWA National Bridge Inventory. Roughly 30.6% are rated “Good,” 46.9% “Fair,” 6.1% “Poor,” and 6.1% 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.

245

Total Bridges

30.6%

Good

6.1%

Poor

6.1%

Structurally Deficient

Condition Distribution

Good

30.6% (75)

Fair

46.9% (115)

Poor

6.1% (15)

SD

6.1% (15)

All Bridges (245)

Sort:

MAIN ST (MD 937)

Over: BRANCH OF GEORGES CREEK

0.36 MI N OF W VA LINE, Allegany, MD

Built 1933 Load: 25.8 t ADT: 3,555

TOWN CREEK ROAD

Over: TOWN CREEK

1.95 MI N OF L TOWN CK RD, Allegany, MD

Built 1964 Load: 25.8 t ADT: 320

MD 942

Over: N BRANCH POTOMAC RIVER

ON WEST VIRGINIA LINE, Allegany, MD

Built 1953 Load: 27.2 t ADT: 7,278

US 220

Over: MILL RUN

1.88 MI S OF MD 830B, Allegany, MD

Built 1929 Load: 28.1 t ADT: 7,111

TEMPERANCE ROW

Over: GEORGES CREEK

0.08 MI N OF MD 935, Allegany, MD

Built 1976 Load: 29.0 t ADT: 206

FOREST GROVE ROAD

Over: WILLS CREEK

0.11 MI W OF SHELLSBUR RD, Allegany, MD

Built 1977 Load: 29.0 t ADT: 393

MD 935

Over: GEORGES CREEK

0.09 M N OF C STREET, Allegany, MD

Built 1933 Load: 29.9 t ADT: 1,430

MD 636

Over: WARRIOR RUN

0.02 MILE EAST OF MD 53, Allegany, MD

Built 1936 Load: 30.4 t ADT: 8,071

MD 935

Over: GEORGES CREEK

0.24 MI S OF MD 935A, Allegany, MD

Built 1930 Load: 30.8 t ADT: 1,430

US 40 ALT

Over: BRADDOCK RUN

1.28 MI W OF MD 831A, Allegany, MD

Built 1948 Load: 30.8 t ADT: 13,491

US 40 ALT

Over: BRADDOCK RUN

0.02 MI W OF MD 55, Allegany, MD

Built 1947 Load: 31.7 t ADT: 9,951

MD 53

Over: WINCHESTER RUN

0.62 MILE NORTH OF MD 951, Allegany, MD

Built 1924 Load: 31.7 t ADT: 12,872

US 220

Over: TRIB TO NORTH BR POTOMAC

1.21 M N OF MD 830A, Allegany, MD

Built 1900 Load: 31.7 t ADT: 7,111

BLACK VALLEY ROAD

Over: FLINTSTONE CREEK

0.02 MI E OF DOLLY RD, Allegany, MD

Built 1964 Load: 31.7 t ADT: 499

MD 36

Over: JENNINGS RUN

1.83 MI S OF MD 47, Allegany, MD

Built 1929 Load: 32.2 t ADT: 2,290

MD 956

Over: POTOMAC RIVER

ON WEST VIRGINIA LINE, Allegany, MD

Built 1967 Load: 32.4 t ADT: 7,150

US 40 ALT

Over: PORTER RUN

.04 MILES WEST OF MD 743, Allegany, MD

Built 1948 Load: 32.7 t ADT: 9,951

IS 68

Over: GEORGES CREEK

0.16 MILE WEST OF MD 936, Allegany, MD

Built 1972 Load: 32.7 t ADT: 23,640

LOWER GEORGES CK R

Over: MILL RUN

0.75 MI S OF MD RTE 935, Allegany, MD

Built 1930 Load: 32.7 t ADT: 336

SQUIRREL NECK ROAD

Over: GEORGES CREEK

0.03 MI W OF CHURCH H RD, Allegany, MD

Built 1998 Load: 32.7 t ADT: 155

COBBLESTONE ROAD

Over: JENNINGS RUN

0.04 MI S OF MD 36, Allegany, MD

Built 1940 Load: 32.7 t ADT: 286

CHRISTIE ROAD

Over: UNNAMED STREAM

0.27 MI. S. OF JEFFRIES R, Allegany, MD

Built 1995 Load: 32.7 t ADT: 1,225

VICTORY POST DRIVE

Over: GEORGES CREEK

0.04 MI N OF MD 937, Allegany, MD

Built 1950 Load: 33.1 t ADT: 1,599

MD 51

Over: C&O CANAL

0.64 MI W OF W VA LINE, Allegany, MD

Built 1932 Load: 33.4 t ADT: 1,642

IS 68

Over: WILLS CREEK, CSX RR, MUN

3 MI. SW. OF US 220, Allegany, MD

Built 1968 Load: 34.0 t ADT: 53,950

PROENTY ROAD

Over: JENNINGS RUN

0.02 MI S OF MD 36, Allegany, MD

Built 1926 Load: 34.9 t ADT: 1,125

SMOUSES MILL ROAD

Over: EVITTS CREEK

0.67 MI S OF US 220, Allegany, MD

Built 2002 Load: 34.9 t ADT: 238

US 40 ALT

Over: BRADDOCK RUN

0.08 MILE EAST OF MD 53, Allegany, MD

Built 1947 Load: 35.4 t ADT: 12,812

MD 639 WILLIAMS RD

Over: EVITTS CREEK

1.51 MILES SOUTH OF IS 68, Allegany, MD

Built 1966 Load: 36.3 t ADT: 2,530

MD 51

Over: CSX TRANS., MD 61

0.40 MI E OF MD 51A, Allegany, MD

Built 1965 Load: 36.7 t ADT: 14,721

LOCUST GROVE ROAD

Over: WILLS CREEK

AT US 40 ALT, Allegany, MD

Built 1900 Load: 37.2 t ADT: 142

US 220

Over: MILL RUN

.13 MILE NORTH OF MD 830B, Allegany, MD

Built 1950 Load: 37.6 t ADT: 7,111

MD 36

Over: NEFF RUN

2.57 MI S OF MD 55, Allegany, MD

Built 1939 Load: 38.1 t ADT: 6,750

IS 68

Over: EVITTS CREEK

0.21 M E OF BR NO 0109900, Allegany, MD

Built 1937 Load: 38.5 t ADT: 26,680

MD 51

Over: POTOMAC RIVER

ON WEST VIRGINIA LINE, Allegany, MD

Built 1987 Load: 39.0 t ADT: 1,502

MD 51

Over: SAWPIT RUN

0.48 M E OF PACK HORSE RD, Allegany, MD

Built 1932 Load: 39.9 t ADT: 2,142

MD 935

Over: MOORES RUN

0.28 MI N OF MD 36, Allegany, MD

Built 1933 Load: 40.4 t ADT: 1,430

MD 53

Over: WARRIOR RUN

0.11 MILE SOUTH OF MD 636, Allegany, MD

Built 1953 Load: 40.4 t ADT: 12,872

IS 68

Over: KELLY BLVD, CSX TRANS.

0.29 MI W OF KELLY RD, Allegany, MD

Built 1968 Load: 40.4 t ADT: 46,611

MARKET STREET

Over: WILLS CREEK

0.03 MI S OF N MECHANC ST, Allegany, MD

Built 1954 Load: 41.3 t ADT: 3,692

GREEN SPRING ROAD

Over: MILL RUN

0.08 MI N OF MAIN ST, Allegany, MD

Built 1935 Load: 41.7 t ADT: 812

IS 68 RAMP 'E'(4)

Over: CENTRE ST, QUEEN CITY DR

0.52 MI E OF US 48H, Allegany, MD

Built 1968 Load: 42.2 t ADT: 6,507

VALLEY STREET

Over: WILLS CREEK / WMSRR

0.20 MI S OF US 40 ALT, Allegany, MD

Built 1955 Load: 42.2 t ADT: 6,149

US 40 SCN

Over: SNIB HOLLOW RUN

0.48 M E OF STONE ROAD, Allegany, MD

Built 1916 Load: 43.1 t ADT: 281

FLINTSTONE CREEK R

Over: FLINTSTONE CREEK

0.30 MI S OF PA LINE, Allegany, MD

Built 1930 Load: 43.1 t ADT: 141

MD 935

Over: BUTCHER RUN

0.03 M N OF BARTLETT ST, Allegany, MD

Built 1930 Load: 43.5 t ADT: 1,430

IS 68 RAMP 'D'(5)

Over: CENTRE STREET

0.52 MI E OF US 48H, Allegany, MD

Built 1968 Load: 43.5 t ADT: 14,023

MD 135D, W VA 46

Over: N BRANCH POTOMAC RIVER

ON WEST VIRGINIA LINE, Allegany, MD

Built 1985 Load: 43.5 t ADT: 4,527

HENDERSON AVENUE

Over: FRANKLIN STREET & CSX RR

0.14 MI. E. OF NATL HWY S, Allegany, MD

Built 1932 Load: 43.5 t ADT: 19,319

MD 956

Over: CSX TRANSPORTATION

0.18 MI W OF W VA LINE, Allegany, MD

Built 1967 Load: 44.0 t ADT: 7,151

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