Montgomery County, MD

522 public highway bridges

Montgomery County Bridge Snapshot

Montgomery County, Maryland contains 522 public highway bridges in the FHWA National Bridge Inventory. Roughly 33% are rated “Good,” 46.7% “Fair,” 4.6% “Poor,” and 4.6% 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.

522
Total Bridges
33%
Good
4.6%
Poor
4.6%
Structurally Deficient

Condition Distribution

Good
33% (172)
Fair
46.7% (244)
Poor
4.6% (24)
SD
4.6% (24)

All Bridges (522)

MD 200 (ICC) EB

Good

Over: TRIBUTARY OF NBRC

1.34 MI W OF MD 97, Montgomery, MD

Built 2010 Load: 39.5 t ADT: 31,652

MD 200 (ICC) WB

Good

Over: Paint Branch

1.40 Mi East of MD650, Montgomery, MD

Built 2010 Load: 39.5 t ADT: 32,064

MD 200 (ICC) WB

Good

Over: US 29 & Ramp SE, NB&EB

0.5 Mi S of Briggs Chaney, Montgomery, MD

Built 2011 Load: 39.5 t ADT: 21,574

MD 119

Good

Over: GUNNERS BR,CSXT RR

.5 MI S OF MIDDLEBROOK RD, Montgomery, MD

Built 1987 Load: 39.9 t ADT: 7,535

New Hampshire Ave

Good

Over: MD 200 (ICC)

5.03 Mi East of MD97, Montgomery, MD

Built 2010 Load: 39.9 t ADT: 31,575

MD 200 (ICC) WB

Good

Over: Shady Grove Road

4.86 MI W. OF MD 97, Montgomery, MD

Built 2010 Load: 40.4 t ADT: 30,827

IS 270 RAMP

Good

Over: UNNAMED TRIB TO SENECA C

1.0 Mile North of MD 124, Montgomery, MD

Built 2020 Load: 40.5 t

MD 28

Good

Over: BUCKHORN RUN

AT INTERSECTION OF MD 182, Montgomery, MD

Built 2001 Load: 40.8 t ADT: 21,671

MD 390

Good

Over: CSX TRANSPORTATION

0.45 MI N OF MD 410, Montgomery, MD

Built 1958 Load: 41.3 t ADT: 35,062

WHITES FERRY ROAD

Good

Over: BROAD RUN TRIBUTARY

0.3 MI E OF WASCHE ROAD, Montgomery, MD

Built 2014 Load: 41.3 t ADT: 1,907

MD 200 (ICC) EB

Good

Over: Gum Springs & Paint Bran

1.40 Mi East of MD650, Montgomery, MD

Built 2010 Load: 41.3 t ADT: 31,755

Watkins Mill Road

Good

Over: IS 270 (Wash. Nat'l Pike

0.75 MI. N of MD 124, Montgomery, MD

Built 2020 Load: 41.5 t

MD 97

Good

Over: Reddy Branch

2 MI. NORTH OF OLNEY, Montgomery, MD

Built 2022 Load: 41.5 t ADT: 10,400

PINEY MEETINGHOUSE

Good

Over: WATTS BRANCH

0.8 MILES NORTH OF MD 190, Montgomery, MD

Built 2017 Load: 41.5 t ADT: 6,724

I-370 RAMP - B

Good

Over: CRABBS BRANCH WAY

0.56 MI E OF MD 355, Montgomery, MD

Built 2009 Load: 41.7 t ADT: 3,953

MD 200 (ICC) WB

Good

Over: TRIBUTARY OF NBRC

1.34 MI W OF MD 97, Montgomery, MD

Built 2010 Load: 41.7 t ADT: 30,827

EMORY LANE

Good

Over: MD 200 (ICC)

0.93 MI W OF MD 97, Montgomery, MD

Built 2010 Load: 41.7 t ADT: 8,133

ELMHIRST PARKWAY

Good

Over: ROCK CREEK TRIBUTARY

0.3 MI N OF CEDAR LANE, Montgomery, MD

Built 2016 Load: 42.1 t ADT: 718

LITTLE SENECA PKWY

Good

Over: LITTLE SENECA CREEK TRIB

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

Built 2011 Load: 42.2 t ADT: 10,542

Ramp NW to MD200WB

Good

Over: US29, Ramp NB&SE, MD200

0.4 Mi S of Briggs Chaney, Montgomery, MD

Built 2011 Load: 42.2 t ADT: 2,294

SNOUFFER SCHOOL RO

Good

Over: CABIN BRANCH

1.3 MI N OF MD124, Montgomery, MD

Built 2020 Load: 42.4 t ADT: 18,315

MD 200 (ICC) WB

Good

Over: Northwest Branch

1.40 Mi West of MD650, Montgomery, MD

Built 2010 Load: 43.1 t ADT: 32,683

MD 28

Good

Over: BATCHELLORS RUN

0.65 MILE WEST OF MD 182, Montgomery, MD

Built 1999 Load: 43.5 t ADT: 24,340

MD 109

Good

Over: BR OF LITTLE MONOCACY RI

1.74 M S OFCOMUS ROAD, Montgomery, MD

Built 2003 Load: 43.5 t ADT: 1,732

FATHER HURLEY BOUL

Good

Over: CENTURY BOULEVARD

0.2 MI SW OF JCT I-270, Montgomery, MD

Built 1995 Load: 43.5 t ADT: 14,319

FATHER HURLEY BOUL

Good

Over: CENTURY BOULEVARD

0.2 MI SW OF JCT I-270, Montgomery, MD

Built 1995 Load: 43.5 t ADT: 13,713

Ramp EN

Good

Over: MD 200 (ICC),US29, Rp SE

MD200EB Ramp EN to US29NB, Montgomery, MD

Built 2011 Load: 43.5 t ADT: 5,902

MD200 (ICC) WB

Good

Over: NORTH BRANCH ROCK CREEK

1.51 MI W OF MD 97, Montgomery, MD

Built 2010 Load: 44.0 t ADT: 30,827

MD 97 SB

Good

Over: MD 200 (ICC)

0.59 MI NORTH OF MD 28, Montgomery, MD

Built 2010 Load: 44.0 t ADT: 27,660

MD 200 (ICC) WB

Good

Over: Ramp NW

0.4 mi W of Briggs Chaney, Montgomery, MD

Built 2011 Load: 44.0 t ADT: 21,574

RAMP WS

Good

Over: MD 200/US29, Ramp EB

1 Mi. E of Old Columbia, Montgomery, MD

Built 2011 Load: 44.0 t ADT: 2,397

SNOUFFER SCHOOL RO

Good

Over: CABIN BRANCH

1.3 MI N OF MD124, Montgomery, MD

Built 2020 Load: 44.1 t ADT: 18,315

IS 370 WBR

Good

Over: CRABBS BRANCH WAY

5.84 MILE WEST OF MD 97, Montgomery, MD

Built 2010 Load: 44.4 t ADT: 78,741

BRINK ROAD

Good

Over: TRIB TO GOSHEN BRANCH

1.0 MILES WEST OF MD 124, Montgomery, MD

Built 2007 Load: 44.4 t ADT: 11,066

LAYHILL RD (MD182)

Good

Over: MD 200 (ICC)

2.79 MI WEST OF MD650, Montgomery, MD

Built 2010 Load: 44.4 t ADT: 14,607

MD 200 (ICC) EB

Good

Over: NORTHWEST BRANCH

2.54 MI WEST OF MD650, Montgomery, MD

Built 2010 Load: 44.4 t ADT: 32,786

MD 200 (ICC) WB

Good

Over: Northwest Branch

2.54 Mi West of MD650, Montgomery, MD

Built 2010 Load: 44.4 t ADT: 32,683

IS 370 EBR

Good

Over: CRABBS BRANCH WAY

5.84 MILE WEST OF MD 355, Montgomery, MD

Built 2010 Load: 44.9 t ADT: 78,741

MD 195

Good

Over: LONG BRANCH

AT LONG BRANCH PARKWAY, Montgomery, MD

Built 2005 Load: 44.9 t ADT: 13,190

MD 200 (ICC) EB

Good

Over: Shady Grove Road

4.86 MI W. OF MD 97, Montgomery, MD

Built 2010 Load: 45.4 t ADT: 31,652

Ramp WN to US29 NB

Good

Over: MD 200 Ramp NW

0.4 mi S Briggs Chaney Rd, Montgomery, MD

Built 2011 Load: 45.4 t ADT: 309

MD 119

Good

Over: GUNNERS BR,CSXT RR

.5 MI S OF MIDDLEBROOK RD, Montgomery, MD

Built 1987 Load: 45.8 t ADT: 6,955

WAYNE AVENUE

Good

Over: SLIGO CREEK

AT MANCHESTER AVENUE, Montgomery, MD

Built 1960 Load: 45.8 t ADT: 19,450

WATTS BRANCH PARKW

Good

Over: WATTS BRANCH

0.2 MI S OF HURLEY AVE, Montgomery, MD

Built 1970 Load: 46.7 t ADT: 3,704

MD 200 (ICC) WB

Good

Over: Bonifant Road & NW Branc

2.07 Mi West of MD 650, Montgomery, MD

Built 2010 Load: 47.2 t ADT: 32,683

IS 270Y HOV RAMP

Good

Over: IS 270Y MEDIAN

AT WESTLAKE TERRACE, Montgomery, MD

Built 2003 Load: 47.6 t ADT: 114,000

MONTROSE PARKWAY

Good

Over: OLD FARM CREEK

1.0 MILE EAST OF I-270, Montgomery, MD

Built 2007 Load: 47.6 t ADT: 28,776

PRESERVE PARKWAY

Good

Over: TRIBUTARY TO CABIN JOHN

0.1M S OF WOOTTON PKWY, Montgomery, MD

Built 1999 Load: 47.6 t ADT: 2,840

MD 97 (GEORGIA AV)

Good

Over: RANDOLPH ROAD

1.4 MI E OF MD 185, Montgomery, MD

Built 2018 Load: 48.0 t ADT: 46,114

REDLAND ROAD

Good

Over: MD 200 (ICC)

4.38 MI W OF MD 97, Montgomery, MD

Built 2009 Load: 48.1 t ADT: 12,649

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

Related

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial