Montgomery County, MD

522 public highway bridges

Montgomery County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Montgomery County, Maryland contains 522 public highway bridges. Roughly 33% are rated “Good,” 46.7% “Fair,” and 4.6% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

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

522

Total Bridges

33%

Good

46.7%

Fair

4.6%

Poor Condition

Condition Distribution

Good

33% (172)

Fair

46.7% (244)

Poor

4.6% (24)

All Bridges (522)

Sort:

US 29

Over: PATUXENT RIVER

ON HOWARD CO LINE, Montgomery, MD

Built 1954 Load: 28.6 t ADT: 49,203

MD 119

Over: LONG DRAUGHT BRANCH

1.66 MILE NORTH OF MD 124, Montgomery, MD

Built 1990 Load: 29.0 t ADT: 10,766

BARNESVILLE ROAD

Over: LITTLE MONOCACY RIVER

0.6 MI E OF MT EPHRAIM RD, Montgomery, MD

Built 1940 Load: 29.0 t ADT: 918

PALMER ROAD SOUTH

Over: STONE LAKE RD/PARKING LT

600M E OF WOOD RD, Montgomery, MD

Built 1981 Load: 29.3 t ADT: 2,750

MD 97

Over: HAWLINGS RIVER

0.88 MILE SOUTH OF MD 650, Montgomery, MD

Built 1930 Load: 30.8 t ADT: 10,740

FAIRLAND ROAD

Over: PAINT BRANCH

1.5 MI WEST OF US 29, Montgomery, MD

Built 1965 Load: 31.7 t ADT: 17,033

E. RIXEY ROAD

Over: STONEY CREEK

10M W STONE LAKE RD, Montgomery, MD

Built 1975 Load: 32.7 t ADT: 500

MD 28 & RAMP 6

Over: WATTS BRANCH

0.18 MILE WEST OF IS 270, Montgomery, MD

Built 1955 Load: 32.7 t ADT: 47,601

US 29

Over: NORTHWEST BRANCH

0.27 M S OF LOCKWOOD DR, Montgomery, MD

Built 1920 Load: 32.7 t ADT: 67,927

MD 107

Over: DRY SENECA CREEK

1.4 MILES WEST OF MD 28, Montgomery, MD

Built 1992 Load: 32.7 t ADT: 5,862

MD 115

Over: ROCK CREEK

0.34 M E OF OLDE MILL RUN, Montgomery, MD

Built 1970 Load: 32.7 t ADT: 16,981

MD 124

Over: GREAT SENECA CREEK

0.23 MI S OF WATKINS RD, Montgomery, MD

Built 1989 Load: 32.7 t ADT: 11,881

MD 182

Over: BEL PRE CREEK

1.15 MILE NORTH OF MD 97, Montgomery, MD

Built 1991 Load: 32.7 t ADT: 21,002

MD 190

Over: BOOZE CREEK

0.56 MILE EAST OF IS 495, Montgomery, MD

Built 1962 Load: 32.7 t ADT: 44,290

MD 193

Over: SLIGO CREEK

1.26 MILES EAST OF MD 97, Montgomery, MD

Built 1932 Load: 32.7 t ADT: 28,580

MD 185

Over: BR OF ROCK CREEK

0.14 MILE SOUTH OF MD 586, Montgomery, MD

Built 1963 Load: 32.7 t ADT: 38,552

MD 124

Over: GOSHEN BRANCH

0.6 MI N OF BRINK RD, Montgomery, MD

Built 1989 Load: 32.7 t ADT: 11,560

MD 586

Over: TURKEY BRANCH

0.98 MILE WEST OF MD 185, Montgomery, MD

Built 1955 Load: 32.7 t ADT: 47,792

IS 495X

Over: BOOZE CREEK

0.48 MILE SOUTH OF IS 495, Montgomery, MD

Built 1964 Load: 32.7 t ADT: 19,820

MD 185

Over: TURKEY BRANCH

0.99 MILE SOUTH OF MD 97, Montgomery, MD

Built 1969 Load: 32.7 t ADT: 36,532

CLARA BARTON PKWY

Over: ROCK RUN

W OF INTERCHANGE, Montgomery, MD

Built 1963 Load: 32.7 t ADT: 13,090

MD 927 & RAMP 'D'

Over: IS 270 RAMP 'I'

0.13 M E OF BR NO 1506800, Montgomery, MD

Built 1988 Load: 32.7 t ADT: 57,252

HAVILAND MILL ROAD

Over: HAWLINGS RIVER

0.8 MI EAST OF MD 650, Montgomery, MD

Built 1926 Load: 32.7 t ADT: 1,000

RANNOCH ROAD

Over: MINNEHAHA BRANCH

0.05 MILES WEST OF MD 614, Montgomery, MD

Built 1920 Load: 32.7 t ADT: 897

BALTIMORE ROAD

Over: ROCK CREEK

0.5 MI S OF JCT SR 28, Montgomery, MD

Built 1911 Load: 32.7 t ADT: 7,482

STRINGTOWN ROAD

Over: TRIBUTARY TO LITTLE SENE

0.5 MI NE OF JCT SR 355, Montgomery, MD

Built 2017 Load: 32.7 t ADT: 7,151

WHITE GROUND ROAD

Over: TRIBUTARY OF SENECA CREE

.4 MI N OF MD 28, Montgomery, MD

Built 1925 Load: 32.7 t ADT: 615

BRIMSTONE ACADEMY

Over: TRIBUTARY TO JAMES CREEK

0.2 MI. S. OF MD 108, Montgomery, MD

Built 1988 Load: 32.7 t ADT: 539

LOGAN DRIVE

Over: ROCK RUN

1.0 MILE SOUTH OF MD-190, Montgomery, MD

Built 1972 Load: 32.7 t ADT: 1,657

BEACH DRIVE

Over: ROCK CREEK TRIBUTARY

0.81 MI N OF JCT SR 547, Montgomery, MD

Built 1965 Load: 32.7 t ADT: 8,611

LITTLE FALLS PARKW

Over: LITTLE FALLS BRANCH TRIB

0.3 MI SW OF RIVER RD, Montgomery, MD

Built 1980 Load: 32.7 t ADT: 16,691

TOWER OAKS BOULEVA

Over: CABIN JOHN CREEK

0.1 M N OF MONTROSE ROAD, Montgomery, MD

Built 1975 Load: 32.7 t ADT: 12,480

EDWARDS FERRY ROAD

Over: C&O CANAL

0.1 miles north of Potoma, Montgomery, MD

Built 1950 Load: 32.7 t ADT: 50

MD 650

Over: HAWLINGS RIVER

1.88 MILES N OF MD 108, Montgomery, MD

Built 1929 Load: 33.1 t ADT: 7,660

IS 495X

Over: CABIN JOHN CREEK

0.22 MILE NORTH OF GV 6, Montgomery, MD

Built 1964 Load: 33.1 t ADT: 19,820

BETHESDA CHURCH RO

Over: BENNETT CREEK

2.6 MILES SE OF MD 75, Montgomery, MD

Built 1990 Load: 33.6 t ADT: 4,242

MAPLE AVENUE

Over: SLIGO CREEK

0.5 MI N OF JCT SR 410, Montgomery, MD

Built 1930 Load: 33.6 t ADT: 6,024

KENSINGTON PARKWAY

Over: ROCK CREEK

0.2 MI S OF BEACH DRIVE, Montgomery, MD

Built 1910 Load: 33.7 t ADT: 3,633

MD 28

Over: LITTLE MONOCACY RIVER

1.86 MILES E OF FRED CO, Montgomery, MD

Built 1925 Load: 34.0 t ADT: 5,050

MD 410

Over: CSXT, WMATA

0.09 MILE EAST OF US 29, Montgomery, MD

Built 1975 Load: 34.5 t ADT: 14,001

MD 182

Over: BATCHELLOR'S RUN

0.391 MILE SOUTH OF MD 28, Montgomery, MD

Built 1931 Load: 34.9 t ADT: 9,850

IS 495

Over: NORTHWEST BRANCH

1.00 MILE WEST OF MD 650, Montgomery, MD

Built 1967 Load: 34.9 t ADT: 222,147

WATKINS MILL ROAD

Over: CABIN BRANCH

.4 MI S OF APPLE RIDGE RD, Montgomery, MD

Built 1990 Load: 34.9 t ADT: 12,768

FOREST GLEN ROAD

Over: SLIGO CREEK

0.6 MI EAST OF MD 97, Montgomery, MD

Built 1974 Load: 34.9 t ADT: 12,150

MD 410

Over: BRANCH OF ROCK CREEK

0.34 MILE WEST OF MD 390, Montgomery, MD

Built 1929 Load: 35.4 t ADT: 26,931

MD 547

Over: ROCK CREEK

0.66 MILE WEST OF MD 185, Montgomery, MD

Built 1932 Load: 35.4 t ADT: 10,982

WOODFIELD SCHOOL R

Over: GREAT SENECA CREEK

0.5 MILES NORTH OF MD 124, Montgomery, MD

Built 1974 Load: 35.8 t ADT: 160

LAKE POTOMAC DRIVE

Over: WATTS BRANCH

0.1 MI N OF JCT SR 190, Montgomery, MD

Built 1985 Load: 36.7 t ADT: 139

CLARA BARTON PARKW

Over: LITTLE FALLS BRANCH

4.5 MILES SOUTH OF I-495., Montgomery, MD

Built 1961 Load: 37.2 t ADT: 16,120

PALMER ROAD SOUTH

Over: E PALMER RD,STONEY CREEK

500M E OF WOOD RD, Montgomery, MD

Built 1981 Load: 37.3 t ADT: 2,750

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

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

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Compiled by PlainBridges, Independent data publisher

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