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)

VALLEYWOOD DRIVE

Poor

Over: JOSEPH'S BRANCH

0.5 MI. EAST OF ROUTE 185, Montgomery, MD

Built 1960 Load: 18.1 t ADT: 706

ERICSSON ROAD

Poor

Over: CLARA BARTON PARKWAY

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

Built 1962 Load: 19.0 t ADT: 16,120

HURLEY AVENUE

Poor

Over: WATTS BRANCH TRIBUTARY

0.1 MI S OF JCT SR 28, Montgomery, MD

Built 1969 Load: 20.4 t ADT: 5,724

MARTINSBURG ROAD

Poor

Over: POTOMAC RIVER TRIBUTARY

1.2 MI N OF WHITES FERRY, Montgomery, MD

Built 1925 Load: 22.7 t ADT: 1,322

BARNES ROAD

Poor

Over: BENNETT CREEK

0.1 MI N OF CLARKSBURG RD, Montgomery, MD

Built 1925 Load: 24.9 t ADT: 600

SOUTHLAWN LANE

Poor

Over: ROCK CREEK

0.25 MI W OF AVERY RD, Montgomery, MD

Built 1920 Load: 27.7 t ADT: 16,792

WITEX ROAD

Poor

Over: ROCK RUN

0.1KM S OF MACARTHUR BLVD, Montgomery, MD

Built 1980 Load: 27.8 t ADT: 500

SCHAEFFER ROAD

Poor

Over: LITTLE SENECA CREEK

0.5 MI E MD RTE 121, Montgomery, MD

Built 1925 Load: 29.5 t ADT: 437

GREENTREE ROAD

Poor

Over: BULLS RUN

0.5 MI E OF JCT SR 191, Montgomery, MD

Built 1949 Load: 37.2 t ADT: 10,816

BRINK ROAD

Poor

Over: GREAT SENECA CREEK

2.1 MILES EAST OF MD 27, Montgomery, MD

Built 1936 Load: 42.6 t ADT: 16,456

DENNIS AVENUE

Poor

Over: SLIGO CREEK TRIBUTARY

0.32 MI E OF JCT SR 97, Montgomery, MD

Built 1961 Load: 42.6 t ADT: 8,590

SPRING STREET

Poor

Over: CSXT RR & WMATA METRO

0.3 MI SOUTH OF MD 97, Montgomery, MD

Built 1968 Load: 49.9 t ADT: 8,204

TUCKERMAN LANE

Poor

Over: SNAKEDEN BRANCH

.5 MI W OF SEVEN LOCKS RD, Montgomery, MD

Built 1966 Load: 49.9 t ADT: 19,882

QUINCE ORCHARD ROA

Poor

Over: MUDDY BRANCH

1.8 MILES SOUTH OF MD 28, Montgomery, MD

Built 1965 Load: 66.7 t ADT: 5,297

SHADY GROVE RD EB

Poor

Over: CSXT RAILROAD

0.5 MI EAST OF MD 355, Montgomery, MD

Built 1976 Load: 76.6 t ADT: 19,679

MIDCOUNTY HWY & MI

Poor

Over: MILL CREEK

.5 MI W OF SHADY GROVE RD, Montgomery, MD

Built 1984 Load: 99.9 t ADT: 31,600

HAWKINS LANDING DR

Poor

Over: GREAT SENECA CREEK TRIBU

.06 M W OF HAWK. CREAM. R, Montgomery, MD

Built 2002 Load: 99.9 t ADT: 132

HOWELL ROAD

Poor

Over: BOOZE CREEK

900 FT. W. OF MD 191, Montgomery, MD

Built 1959 Load: 99.9 t ADT: 105

RABBITT ROAD

Poor

Over: LONG DRAUGHT BRANCH

1 MILE SOUTH OF MD 117, Montgomery, MD

Built 1982 Load: 99.9 t ADT: 1,329

CLARA BARTON PARKW

Poor

Over: CLARA BARTON PARKWAY (SB

0.1 MILES WEST OF MACARTH, Montgomery, MD

Built 1959 Load: 99.9 t ADT: 40,057

TALBOT AVENUE

Structurally Deficient

Over: CSXT RAILROAD

0.2 MI E OF MICHIGAN AVE, Montgomery, MD

Built 1918 ADT: 1,430

GARRETT PARK ROAD

Structurally Deficient

Over: ROCK CREEK

100 FT W OF BEACH DRIVE, Montgomery, MD

Built 1965 Load: 13.6 t ADT: 3,554

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