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)

GARRETT PARK ROAD

Poor

Over: ROCK CREEK

100 FT W OF BEACH DRIVE, Montgomery, MD

Built 1965 Load: 13.6 t ADT: 3,554

MOUTH OF MONOCACY

Poor

Over: LITTLE MONOCACY RIVER

0.5 MI E OF MT EPHRAM RD, Montgomery, MD

Built 1971 Load: 18.1 t ADT: 79

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

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.