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:

IS 495 RAMP E(10)

Over: CABIN JOHN CREEK

0.12 MI W OF IS 495X, Montgomery, MD

Built 1964 Load: 65.3 t ADT: 11,731

WARING STATION ROA

Over: CSXT RAILROAD

0.5 MI NORTH OF MD 117, Montgomery, MD

Built 1986 Load: 65.3 t ADT: 6,897

WHITES FERRY ROAD

Over: BROAD RUN

3 MILES WEST OF MD 109, Montgomery, MD

Built 1931 Load: 65.3 t ADT: 1,988

MD 190

Over: MUDDY BRANCH

0.98 M E OF PETTIT WAY, Montgomery, MD

Built 1954 Load: 66.2 t ADT: 3,592

RANDOLPH ROAD (WB)

Over: ROCK CREEK

0.6 MILES WEST OF MD 586, Montgomery, MD

Built 1951 Load: 66.2 t ADT: 23,434

MD 117

Over: BUCKLODGE BRANCH

3.12 MILES NORTH OF MD 28, Montgomery, MD

Built 1932 Load: 67.1 t ADT: 5,572

MD 118

Over: GREAT SENECA CREEK

1.3 MILES NORTH OF MD 28, Montgomery, MD

Built 1931 Load: 67.1 t ADT: 6,121

NICHOLSON LANE

Over: CSXT RAILROAD

0.5 MILES EAST OF MD 355, Montgomery, MD

Built 2008 Load: 67.1 t ADT: 38,971

DENNIS AVENUE

Over: SLIGO CREEK

0.7 MI E OF JCT SR 97, Montgomery, MD

Built 1999 Load: 67.1 t ADT: 10,971

BEACH DRIVE

Over: ROCK CREEK

0.15 MI N OF JCT SR 547, Montgomery, MD

Built 1966 Load: 67.1 t ADT: 8,663

TUCKERMAN LANE

Over: CABIN JOHN CREEK

1 MI E OF SEVEN LOCKS RD, Montgomery, MD

Built 1966 Load: 68.0 t ADT: 24,539

SEVEN LOCKS ROAD

Over: CABIN JOHN CREEK

.1 MI S OF DEMOCRACY BLVD, Montgomery, MD

Built 1960 Load: 71.2 t ADT: 30,260

MIDDLEBRIDGE DRIVE

Over: BEL PRE CREEK

0.1 MI EAST OF MD-182, Montgomery, MD

Built 1983 Load: 71.2 t ADT: 315

MORNINGWOOD DRIVE

Over: WILLIAMSBURG RUN TRIB

0.90 MI. W. OF MD 108, Montgomery, MD

Built 1970 Load: 72.6 t ADT: 5,113

GOSHEN ROAD

Over: WHETSTONE RUN

0.1 MI S MID-COUNTY HWY, Montgomery, MD

Built 1986 Load: 73.0 t ADT: 20,972

NELSON STREET

Over: WATTS BRANCH

0.5 MILES NORTH OF MD 28, Montgomery, MD

Built 1955 Load: 73.0 t ADT: 13,576

MD 586

Over: ROCK CREEK

1.68 MILES EAST OF MD 28, Montgomery, MD

Built 1954 Load: 73.5 t ADT: 56,222

PRESERVE PARKWAY

Over: CABIN JOHN CREEK

0.2 MI E OF TOWER OAKS BL, Montgomery, MD

Built 2006 Load: 73.9 t ADT: 2,450

BEACH DRIVE

Over: TRIB TO ROCK CREEK

1.1 MI SOUTH OF MD 547, Montgomery, MD

Built 1968 Load: 75.7 t ADT: 6,263

SHADY GROVE RD WB

Over: CSXT RAILROAD

0.5 MI EAST OF MD 355, Montgomery, MD

Built 1976 Load: 76.6 t ADT: 35,374

MD 117

Over: GUNNERS BRANCH

1.21 MILES EAST OF MD 118, Montgomery, MD

Built 1951 Load: 78.9 t ADT: 18,752

BIG WOODS ROAD

Over: LITTLE MONOCACY RIVER

0.6 MI S OF JCT SR 28, Montgomery, MD

Built 1919 Load: 81.2 t ADT: 345

BEL PRE ROAD

Over: BEL PRE CREEK

0.5 MILES WEST OF MD 182, Montgomery, MD

Built 1955 Load: 83.0 t ADT: 31,186

BRIGHTON DAM ROAD

Over: HAWLINGS RIVER

0.9 MI W OF JCT SR MD 650, Montgomery, MD

Built 1920 Load: 83.0 t ADT: 2,990

DEMOCRACY BLVD

Over: BUCK BRANCH

2 MI E OF JCT SR MD 189, Montgomery, MD

Built 1988 Load: 83.0 t ADT: 16,780

SKYLARK ROAD

Over: LITTLE SENECA CREEK

0.7 MI WEST OF MD 27, Montgomery, MD

Built 2006 Load: 84.4 t ADT: 5,507

HUNTMASTER ROAD

Over: GOSHEN BRANCH

0.2 MI NORTH OF BRINK RD, Montgomery, MD

Built 1920 Load: 85.4 t ADT: 480

MD 355

Over: CAPITAL CRESCENT TRAIL

0.08 MILE SOUTH OF MD 410, Montgomery, MD

Built 1988 Load: 85.7 t ADT: 28,620

GLEN ROAD

Over: WATTS BRANCH

1.5 MI W OF JCT SR 189, Montgomery, MD

Built 1930 Load: 85.7 t ADT: 8,250

GRANITE ROCK ROAD

Over: TRIBUTARY TO LITTLE SENE

1 MI NORTHEAST OF MD 355, Montgomery, MD

Built 2007 Load: 96.9 t ADT: 412

MD 108

Over: PATUXENT RIVER

ON HOWARD CO LINE, Montgomery, MD

Built 1928 Load: 99.9 t ADT: 12,871

IS 270

Over: LITTLE SENECA CREEK

1.85 south of MD 121, Montgomery, MD

Built 1954 Load: 99.9 t ADT: 98,097

IS 270

Over: OLD FARM CREEK

0.13 MILE N OF IS 270Y, Montgomery, MD

Built 1958 Load: 99.9 t ADT: 265,320

MD 117

Over: LITTLE SENECA CREEK

1.03 MILES EAST OF MD 121, Montgomery, MD

Built 1953 Load: 99.9 t ADT: 7,457

MD 190

Over: WATTS BRANCH

3.42 MILES WEST OF MD 189, Montgomery, MD

Built 1949 Load: 99.9 t ADT: 15,240

IS 495

Over: SLIGO CREEK

0.55 MILE EAST OF MD 97, Montgomery, MD

Built 1960 Load: 99.9 t ADT: 232,010

IS 495

Over: BR OF ROCK CREEK

0.6 MILE EAST OF MD 355, Montgomery, MD

Built 1958 Load: 99.9 t ADT: 238,050

MD 28

Over: BRANCH OF ROCK CREEK

0.55 MILE EAST OF MD 911, Montgomery, MD

Built 1969 Load: 99.9 t ADT: 34,390

MD 586

Over: BRANCH OF ROCK CREEK

0.06 M E OF ANDREW STREET, Montgomery, MD

Built 1956 Load: 99.9 t ADT: 37,752

MD 124

Over: WHETSTONE RUN

0.447 M S of Midcounty, Montgomery, MD

Built 1986 Load: 99.9 t ADT: 23,621

MUDDY BRANCH ROAD

Over: MUDDY BRANCH

1 MI N GREAT SENECA HWY, Montgomery, MD

Built 1987 Load: 99.9 t ADT: 24,785

MUDDY BRANCH ROAD

Over: SHADY BRANCH

0.5 MILES NORTH OF MD 28, Montgomery, MD

Built 1987 Load: 99.9 t ADT: 24,739

BRIGGS CHANEY ROAD

Over: PAINT BRANCH

2.4 MILES EAST OF MD 650, Montgomery, MD

Built 1974 Load: 99.9 t ADT: 20,551

BRIGGS CHANEY ROAD

Over: LITTLE PAINT BRANCH TRIB

1 MI EAST OF US 29, Montgomery, MD

Built 1994 Load: 99.9 t ADT: 12,450

HOWARD CHAPEL ROAD

Over: HAIGHTS BRANCH

1.7 MI NORTH OF MD 650, Montgomery, MD

Built 1963 Load: 99.9 t ADT: 580

HAWKINS CREAMERY R

Over: GREAT SENECA CREEK

1.3 MILES WEST OF MD 108, Montgomery, MD

Built 1961 Load: 99.9 t ADT: 550

DEMOCRACY BOULEVAR

Over: CABIN JOHN CREEK

.1 MI E OF SEVEN LOCKS RD, Montgomery, MD

Built 1967 Load: 99.9 t ADT: 31,775

TILDEN LANE

Over: OLD FARM CREEK

1.2 MILES WEST OF MD 187, Montgomery, MD

Built 1972 Load: 99.9 t ADT: 6,533

JONES MILL ROAD

Over: COQUELIN RUN

0.5 MILES NORTH OF MD 410, Montgomery, MD

Built 1949 Load: 99.9 t ADT: 7,542

MONTGOMERY VILLAGE

Over: CABIN BRANCH

2.2 MI N OF JCT SR MD 355, Montgomery, MD

Built 1972 Load: 99.9 t ADT: 31,900

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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