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)

MD 200 (ICC) EB

Good

Over: Northwest Branch

1.40 Mi West of MD 650, Montgomery, MD

Built 2010 Load: 48.1 t ADT: 32,786

LYTTONSVILLE PLACE

Good

Over: PURPLE LINE

1 MILES NORTH OF MD 410, Montgomery, MD

Built 2019 Load: 48.6 t ADT: 10,523

MD 355

Good

Over: GREAT SENECA CREEK

1.32 MILES N OF MD 124, Montgomery, MD

Built 2000 Load: 49.0 t ADT: 31,050

HOWARD CHAPEL RD

Good

Over: PATUXENT RIVER

1.7 MI NORTH OF MD 650, Montgomery, MD

Built 2002 Load: 49.0 t ADT: 563

DRIVEWAY OFF AINTR

Good

Over: WATTS BRANCH

WOOTTONS MILL PARK, Montgomery, MD

Built 2009 Load: 49.4 t ADT: 20

LONGMEAD CROSSING

Good

Over: MD 200 (ICC)

3.61 MI WEST OF MD650, Montgomery, MD

Built 2010 Load: 49.4 t ADT: 6,790

PARK VALLEY ROAD

Good

Over: SLIGO CREEK

AT SLIGO CR PKWY, Montgomery, MD

Built 2019 Load: 49.9 t ADT: 1,126

MD 97 NB

Good

Over: MD 200 (ICC)

0.59 MI NORTH OF MD 28, Montgomery, MD

Built 2010 Load: 50.3 t ADT: 23,218

MD 200 (ICC) Ramp

Good

Over: MD 200 (ICC) Ramp SE

0.2 mi W US29/MD200 I/C, Montgomery, MD

Built 2010 Load: 50.3 t ADT: 2,449

I-370 WBR

Good

Over: IS-370 RP1, MD200 RP7

5.67 MI WEST OF MD97, Montgomery, MD

Built 2010 Load: 50.8 t ADT: 39,531

WHITE GROUND ROAD

Good

Over: BUCKLODGE BRANCH

2 MILES NORTH OF MD 28, Montgomery, MD

Built 2012 Load: 50.8 t ADT: 823

WATKINS MILL ROAD

Good

Over: WHETSTONE RUN

0.5 MILES EAST OF MD 355, Montgomery, MD

Built 1997 Load: 50.8 t ADT: 8,397

WATKINS MILL ROAD

Good

Over: CSX RAILROAD

.28 MI. N. OF MD 117, Montgomery, MD

Built 2006 Load: 50.8 t ADT: 2,136

MD 200 (ICC) EB

Good

Over: Bonifant Road & NW Branc

2.07 Mi. West of MD650, Montgomery, MD

Built 2010 Load: 51.7 t ADT: 32,786

NORBECK RD (MD28)

Good

Over: MD 200 (ICC)

4.1 MI WEST OF MD 65, Montgomery, MD

Built 2010 Load: 52.6 t ADT: 18,475

IS-370 EBR

Good

Over: IS-370 RP1, MD200 RP7

5.67 MI WEST OF MD 97, Montgomery, MD

Built 2010 Load: 53.5 t ADT: 39,531

NEEDWOOD ROAD

Good

Over: MD 200 (ICC)

2.88 MI W OF MD 97, Montgomery, MD

Built 2010 Load: 53.5 t ADT: 760

MD 97

Good

Over: Meadow Branch

2 MI. N OF OLNEY, Montgomery, MD

Built 2021 Load: 53.8 t ADT: 10,400

NOTLEY ROAD

Good

Over: MD 200 (ICC)

0.71 MI WEST OF MD 650, Montgomery, MD

Built 2010 Load: 54.0 t ADT: 4,997

INWOOD AVENUE

Good

Over: TRIBUTARY TO SLIGO CREEK

AT FOLK STREET, Montgomery, MD

Built 1956 Load: 54.4 t ADT: 2,972

JEB STUART TRAIL

Good

Over: TRIB TO LITTLE MONOCACY

0.18 MI WEST OF MD RTE 28, Montgomery, MD

Built 2010 Load: 54.9 t ADT: 20

MD 28

Good

Over: SENECA CREEK

0.2 MILE EAST OF MD 107, Montgomery, MD

Built 2000 Load: 55.8 t ADT: 11,520

CLARKSBURG ROAD

Good

Over: LITTLE BENNETT CREEK

1.9 MI N OF MD 355, Montgomery, MD

Built 1998 Load: 56.2 t ADT: 2,934

MD 200 (ICC) EB

Good

Over: Ramp NW

0.6 mi W of Briggs Chaney, Montgomery, MD

Built 2011 Load: 56.2 t ADT: 22,682

WHITES FERRY ROAD

Good

Over: BROAD RUN TRIBUTARY

2 MI W OF JCT SR 109, Montgomery, MD

Built 1998 Load: 57.1 t ADT: 1,999

DAHLGREN ROAD

Good

Over: PAINT BRANCH

GSA at White Oak, MD. I-, Montgomery, MD

Built 2009 Load: 57.1 t ADT: 110

BURNING TREE ROAD

Good

Over: BOOZE CREEK

0.5 MILES SOUTH OF MD 191, Montgomery, MD

Built 2008 Load: 57.6 t ADT: 1,938

Ramp WS & WN

Good

Over: Ramp NW

0.5 mi S Briggs Chaney Rd, Montgomery, MD

Built 2011 Load: 57.6 t ADT: 2,706

CLARKSBURG ROAD

Good

Over: LITTLE BENNETT CREEK TRI

2.8 MILES NORTH OF MD 355, Montgomery, MD

Built 1988 Load: 58.0 t ADT: 2,969

MD 200 (ICC) EB

Good

Over: Good Hope Tributary

0.48 Mi East of MD650, Montgomery, MD

Built 2010 Load: 58.5 t ADT: 31,755

Ramp ES

Good

Over: Ramp SE

0.12 mi W of 29/200 I/C, Montgomery, MD

Built 2011 Load: 58.5 t ADT: 2,449

MUNCASTER MILL RD

Good

Over: MD 200 (ICC)

2.33 MI W OF MD 97, Montgomery, MD

Built 2010 Load: 59.0 t ADT: 19,690

MD 410

Good

Over: GEORGETOWN BRANCH TRAIL

0.52 MILE EAST OF MD 355, Montgomery, MD

Built 1997 Load: 59.4 t ADT: 26,061

LINDEN LANE

Good

Over: CSXT RAILROAD

0.5 MI W OF SEMINARY ROAD, Montgomery, MD

Built 1996 Load: 59.9 t ADT: 4,090

PENNYFIELD LOCK RO

Good

Over: UNNAMED TRIBUTARY

0.8 MI S OF RIVER ROAD, Montgomery, MD

Built 2017 Load: 59.9 t ADT: 529

LITTLE SENECA PKWY

Good

Over: LITTLE SENECA CREEK

0.1 MI. E. OF MD 355, Montgomery, MD

Built 2014 Load: 59.9 t ADT: 10,875

MD 200 Ramp ES

Good

Over: MD 200 (ICC) Ramp SB

0.10 Mi. West of US 29, Montgomery, MD

Built 2010 Load: 59.9 t ADT: 2,449

MD 200 (ICC) WB

Good

Over: Good Hope Tributary

0.45 Mi East of MD650, Montgomery, MD

Built 2010 Load: 60.3 t ADT: 32,064

BROOKSIDE VISITORS

Good

Over: NORTHWEST BRANCH TRIBUTA

ENT. FROM GLENALLEN AVE., Montgomery, MD

Built 1999 Load: 60.8 t ADT: 55

PEACH TREE ROAD

Good

Over: CSXT RAILROAD

1 MI S OF BARNESVILLE RD, Montgomery, MD

Built 2000 Load: 61.2 t ADT: 400

CLARKSBURG ROAD

Good

Over: BENNETT CREEK

2.2 MI SW OF JCT SR 80, Montgomery, MD

Built 2011 Load: 63.0 t ADT: 4,123

I-370 RAMP L(7)

Good

Over: I-370 RAMP M(3)

.23 MI E OF MD 355, Montgomery, MD

Built 2010 Load: 63.5 t ADT: 3,953

FIRST STREET

Good

Over: ROCK CREEK TRIBUTARY

0.07 MILE WEST OF MD28, Montgomery, MD

Built 2017 Load: 64.8 t ADT: 3,496

WHITES FERRY ROAD

Good

Over: BROAD RUN TRIBUTARY

1 MI W OF ELGIN ROAD, Montgomery, MD

Built 2014 Load: 65.3 t ADT: 1,836

NORBECK ROAD

Good

Over: NURSERY RUN

0.98 MILES EAST OF MD 182, Montgomery, MD

Built 2002 Load: 65.3 t ADT: 18,960

Ramp WN to US29 NB

Good

Over: Ramp NB to Briggs Chaney

0.8 Mi S Briggs Chaney Rd, Montgomery, MD

Built 2011 Load: 65.3 t ADT: 309

WATKINS MILL ROAD

Good

Over: GREAT SENECA CREEK

.6 MI SE OF BLUNT ROAD, Montgomery, MD

Built 1990 Load: 65.7 t ADT: 12,760

IS 370

Good

Over: OAKMONT AVENUE

0.37 MILE EAST OF MD 355, Montgomery, MD

Built 1989 Load: 66.2 t ADT: 78,741

VALLEY ROAD

Good

Over: BOOZE CREEK

40 FT E OF FALLEN OAK RD, Montgomery, MD

Built 1964 Load: 67.4 t ADT: 216

GOLD MINE ROAD

Good

Over: HAWLINGS RIVER

0.4 MILES WEST OF MD 650, Montgomery, MD

Built 2019 Load: 67.7 t ADT: 2,792

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

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.