Baltimore County, MD

787 public highway bridges

Baltimore County Bridge Snapshot

Baltimore County, Maryland contains 787 public highway bridges in the FHWA National Bridge Inventory. Roughly 20.8% are rated “Good,” 46.9% “Fair,” 2.9% “Poor,” and 2.9% 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.

787

Total Bridges

20.8%

Good

2.9%

Poor

2.9%

Structurally Deficient

Condition Distribution

Good

20.8% (164)

Fair

46.9% (369)

Poor

2.9% (23)

SD

2.9% (23)

All Bridges (787)

Sort:

MD 45

Over: BRANCH OF BEAVERDAM RUN

0.71 MI N OF CHURCH LANE, Baltimore, MD

Built 1989 Load: 55.3 t ADT: 27,510

GREENE ROAD

Over: TRIBUTARY TO LITTLE GUNP

0.37 MI NE OF MD RTE 145, Baltimore, MD

Built 1920 Load: 55.8 t ADT: 603

SOUTH DOLFIELD ROA

Over: GWYNNS FALLS

0.3 M NW PAINTERS MILL RD, Baltimore, MD

Built 1965 Load: 56.2 t ADT: 8,948

I-95 NB

Over: CAMPBELL ROAD

0.66 MI S OF MD RTE 43, Baltimore, MD

Built 1962 Load: 56.2 t ADT: 98,960

US 1

Over: LITTLE GUNPOWDER FALLS

ON HARFORD CO LINE, Baltimore, MD

Built 2010 Load: 57.1 t ADT: 22,152

MD 702

Over: DEEP CREEK

0.68 MILE EAST OF MD 150, Baltimore, MD

Built 1989 Load: 57.1 t ADT: 27,871

IS 83 NBR

Over: NCR TRAIL & LITTLE FALLS

0.55 MILE SOUTH OF MD 45, Baltimore, MD

Built 2006 Load: 57.6 t ADT: 50,431

MOUNT VISTA ROAD

Over: BROAD RUN

0.35 MI E OF US ROUTE 1, Baltimore, MD

Built 1998 Load: 57.6 t ADT: 1,034

WHITE MARSH ROAD

Over: TRIBUTARY TO WHITE MARSH

1.0 MI E OF MD RT 1, Baltimore, MD

Built 2005 Load: 58.0 t ADT: 3,320

I695W RAMP TO I95N

Over: STEMMERS RUN

I95/I695 INTERCHANGE, Baltimore, MD

Built 2008 Load: 58.0 t ADT: 13,836

RESH MILL ROAD

Over: GRAVE RUN

0.56 MI N OF FALLS RD, Baltimore, MD

Built 2005 Load: 59.4 t ADT: 232

DOGWOOD ROAD

Over: DOGWOOD RUN

2.74 MI. W. OF IS 695, Baltimore, MD

Built 2018 Load: 59.9 t ADT: 7,043

GWYNNBROOK AVENUE

Over: GWYNNS FALLS

1.04 MILES E OF MD 140, Baltimore, MD

Built 1992 Load: 61.2 t ADT: 9,800

GREENSPRING AVENUE

Over: MOORES BRANCH

0.65 MI S OF MD 133, Baltimore, MD

Built 1965 Load: 61.2 t ADT: 8,341

I95 NORTHBOUND

Over: FUTURE RAMP MB

I695 IS95 Interchange, Baltimore, MD

Built 2008 Load: 61.2 t ADT: 52,628

MD 151 (SPARROWS P

Over: MD 151B AND TRADEPOINT R

0.1 MI S. OF MD 158, Baltimore, MD

Built 1954 Load: 61.9 t ADT: 21,000

HARRIS MILL ROAD

Over: DEER CREEK

0.59 MI E OF MASON-DIX RD, Baltimore, MD

Built 2006 Load: 62.1 t ADT: 298

BUSINESS PARK DRIV

Over: TRIBUTARY TO ROLAND RUN

0.4 MI S OF TIMONIUM RD, Baltimore, MD

Built 1992 Load: 62.1 t ADT: 5,516

DAIRY ROAD

Over: OWL BRANCH

1MI S. OF I-83 EXIT33, Baltimore, MD

Built 2011 Load: 62.6 t ADT: 727

PHOENIX ROAD

Over: TRIBUTARY TO GUNPOWDER F

0.5 MI. NE OF SR 45, Baltimore, MD

Built 2002 Load: 64.4 t ADT: 1,607

I-695 RAMP to I95S

Over: STEMMERS RUN

I-95/I-695 Interchange, Baltimore, MD

Built 2008 Load: 64.9 t ADT: 23,331

IS 83 RAMP '6'

Over: BRANCH OF BEAVERDAM RUN

RP FR PADONIA TO I 83 SB, Baltimore, MD

Built 1983 Load: 65.3 t ADT: 10,000

BUSINESS PARK DRIV

Over: ROLAND RUN

0.4 MI S OF TIMONIUM RD, Baltimore, MD

Built 1992 Load: 66.2 t ADT: 5,625

MD 151B (Wharf Roa

Over: Warehouse Road and Trade

0.4 Mi. S. of MD 158, Baltimore, MD

Built 2022 Load: 67.4 t ADT: 12,750

GUN ROAD

Over: PATAPSCO RIVER

PATAPSCO VALLEY ST PARK, Baltimore, MD

Built 1975 Load: 67.6 t ADT: 110

MD 25

Over: GEORGES RUN

1.36 MI N OF MD 137, Baltimore, MD

Built 2015 Load: 67.7 t ADT: 4,400

CROMWELL VALLEY PA

Over: MINEBANK RUN

0.3 MI. NW CROMWELL BR RD, Baltimore, MD

Built 2005 Load: 68.5 t ADT: 212

BENSON MILL ROAD

Over: BLACKROCK RUN

0.3 MI E OF MD 25, Baltimore, MD

Built 2001 Load: 68.9 t ADT: 4,229

OWINGS MILLS BOULE

Over: TRIBUTARY TO GWYNNS FALL

0.06 MI S OF GWYNBRK AVE, Baltimore, MD

Built 2003 Load: 68.9 t ADT: 29,024

MD-43

Over: I-95 Ramps E & F

3.2 MI N OF I-695/I-95INT, Baltimore, MD

Built 2012 Load: 68.9 t ADT: 31,500

EARLS ROAD

Over: AMTRAK RAILROAD

0.16 MI N OF MD RTE 150, Baltimore, MD

Built 2000 Load: 69.4 t ADT: 4,370

HARRIS MILL ROAD

Over: EBAUGHS CREEK

0.15 MI N OF BOND ROAD, Baltimore, MD

Built 2011 Load: 69.8 t ADT: 370

IS 695 OL RAMP '1'

Over: LEEDS AVE & HERBERT RUN

0.77 MILE NORTH OF IS 95, Baltimore, MD

Built 2004 Load: 71.2 t ADT: 5,696

US 40 EBR

Over: LITTLE GUNPOWDER FALLS

ON HARFORD CO LINE, Baltimore, MD

Built 1935 Load: 74.2 t ADT: 14,805

US 40 WBR

Over: LITTLE GUNPOWDER FALLS

ON HARFORD CO LINE, Baltimore, MD

Built 1935 Load: 74.2 t ADT: 14,805

MD 943

Over: GOODWIN RUN

0.28 MILE EAST OF IS 83, Baltimore, MD

Built 1993 Load: 74.4 t ADT: 25,470

MD 943

Over: GOODWIN RUN

0.28 MILE EAST OF IS 83, Baltimore, MD

Built 1993 Load: 74.4 t ADT: 25,470

SPRING AVENUE

Over: TRIBUTARY TO REDHOUSE CR

0.2 MI NW OF MD 7, Baltimore, MD

Built 2005 Load: 74.4 t ADT: 115

MOUNT VISTA ROAD

Over: TRIBUTARY TO GUNPOWDER F

1.28 MI E OF US RTE 1, Baltimore, MD

Built 1984 Load: 74.8 t ADT: 1,713

MD 7

Over: WHITEMARSH RUN

0.2 M E OF CAMPBELL BLVD, Baltimore, MD

Built 2002 Load: 76.2 t ADT: 16,450

IS 83

Over: OREGON BRANCH

0.41 MI N OF BEAVERDAM RD, Baltimore, MD

Built 1949 Load: 76.2 t ADT: 85,051

KELOX ROAD

Over: TRIBUTARY TO GWYNNS FALL

0.1 MI NE of SR 26, Baltimore, MD

Built 2010 Load: 76.6 t ADT: 812

MD 133

Over: SLAUGHTERHOUSE BRANCH

0.11 MI W OF MD 25, Baltimore, MD

Built 1990 Load: 78.0 t ADT: 6,191

JERUSALEM ROAD

Over: LITTLE GUNPOWDER FALLS

2 MI E OF US RTE 1, Baltimore, MD

Built 1993 Load: 78.9 t ADT: 3,035

CROMWELL VALLEY PA

Over: MINEBANK RUN

0.2 MI N OF MD RTE 567, Baltimore, MD

Built 2006 Load: 79.8 t ADT: 332

IS 195 SBR

Over: CSX TRANSPORTATION

0.26 MILE NORTH OF US 1, Baltimore, MD

Built 1972 Load: 82.1 t ADT: 41,831

US 1

Over: GUNPOWDER FALLS

0.91 M S OF MT VISTA ROAD, Baltimore, MD

Built 1991 Load: 99.9 t ADT: 3,393

MD 131

Over: ROLAND RUN

0.85 MILE WEST OF IS 83, Baltimore, MD

Built 1979 Load: 99.9 t ADT: 9,381

IS 795

Over: GWYNNS FALLS

0.22 M N OF BR NO 0331700, Baltimore, MD

Built 1984 Load: 99.9 t ADT: 110,982

MD 43

Over: TRIB TO WINDLASS RUN

0.9 M E OF BIRD RIVER RD, Baltimore, MD

Built 2005 Load: 99.9 t ADT: 16,200

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

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 6, 2026