Howard County, MD

310 public highway bridges

Howard County Bridge Snapshot

Howard County, Maryland contains 310 public highway bridges in the FHWA National Bridge Inventory. Roughly 28.4% are rated “Good,” 37.1% “Fair,” 5.8% “Poor,” and 5.8% 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.

310

Total Bridges

28.4%

Good

5.8%

Poor

5.8%

Structurally Deficient

Condition Distribution

Good

28.4% (88)

Fair

37.1% (115)

Poor

5.8% (18)

SD

5.8% (18)

All Bridges (310)

Sort:

DAISY ROAD

Over: CATTAIL CREEK

0.5 MI N UNION CHAPEL RD, Howard, MD

Built 2017 Load: 57.1 t ADT: 1,679

MD 100

Over: OLD MONT. RD & DEEP RUN

0.62 MILE WEST OF MD 103, Howard, MD

Built 1998 Load: 57.6 t ADT: 82,092

MD 100

Over: DORSEY STATION ACCESS RD

0.39 M W OF AA CO LINE, Howard, MD

Built 1996 Load: 57.6 t ADT: 83,402

MD 100

Over: DORSEY STATION ACCESS RD

0.39 M W OF AA CO LINE, Howard, MD

Built 1996 Load: 57.6 t ADT: 83,402

OLD MONTGOMERY RD

Over: DEEP RUN

0.5 MI S OF MD RTE 103, Howard, MD

Built 2013 Load: 60.8 t ADT: 9,224

MD 100

Over: OLD MONT. RD & DEEP RUN

0.62 MILE WEST OF MD 103, Howard, MD

Built 1998 Load: 63.5 t ADT: 82,092

JOHN MCADAM DR

Over: DORSEY BRANCH

800 FT S OF MD 175, Howard, MD

Built 2000 Load: 66.7 t ADT: 30

BONNIE BRANCH RD

Over: BONNIE BRANCH

0.2 MI E OF COLLEGE AVE, Howard, MD

Built 2006 Load: 68.0 t ADT: 1,000

GUILFORD ROAD

Over: CSX TRANSPORTATION

ON ANNE ARUNDEL CO LINE, Howard, MD

Built 2008 Load: 69.8 t ADT: 13,485

MD 32 EB

Over: LITTLE PATUXENT RIVER

0.23 M S OF SHAKER DRIVE, Howard, MD

Built 1981 Load: 70.7 t ADT: 81,712

GREAT STAR DRIVE

Over: CRICKETT CREEK

1.0 Mile SE of MD 108, Howard, MD

Built 1997 Load: 70.7 t ADT: 6,583

ELLICOTT CENTER DR

Over: UNNAMED STREAM

400 FT NW OF ROGERS AVE, Howard, MD

Built 2003 Load: 71.2 t ADT: 1,814

RIVER ROAD

Over: ROCKBURN BRANCH

AT ROCKBURN RD, Howard, MD

Built 2022 Load: 71.6 t ADT: 250

SHADY LANE

Over: DORSEY BRANCH

0.5 MI N OF SHARP RD, Howard, MD

Built 2011 Load: 72.6 t ADT: 1,300

MD 32 EBR

Over: MIDDLE PATUXENT RIVER

0.89 MILE NORTH OF US 29, Howard, MD

Built 1995 Load: 73.0 t ADT: 61,442

MD 97

Over: PATUXENT RIVER

ON MONTGOMERY CO LINE, Howard, MD

Built 2000 Load: 73.5 t ADT: 13,200

PARK CIRCLE DRIVE

Over: DEEP RUN

0.4 MI N MD 176 HO/AA CO., Howard, MD

Built 1990 Load: 73.9 t ADT: 870

LARK BROWN ROAD

Over: DORSEY RUN

0.04 MI W OF MD RTE 108, Howard, MD

Built 1991 Load: 76.6 t ADT: 6,274

HOMEWOOD ROAD

Over: MIDDLE PATUXENT RIVER

1 MI W OF MD RTE 108, Howard, MD

Built 2000 Load: 76.6 t ADT: 5,182

ROXBURY ROAD

Over: DORSEY BRANCH

0.5 MI E OF MD RTE 97, Howard, MD

Built 2002 Load: 77.1 t ADT: 1,079

MAXWELL COURT

Over: UNNAMED STREAM

0.4 Mile West of MD 1, Howard, MD

Built 1995 Load: 78.9 t ADT: 50

Bellows Spring Ele

Over: Deep Run Creek

BELLOW SPRING ELEM SCHOOL, Howard, MD

Built 2003 Load: 82.5 t ADT: 500

SHEPPARD LANE

Over: MIDDLE PATUXENT RIVER

0.6 MI N OF MD RTE 108, Howard, MD

Built 1997 Load: 87.5 t ADT: 3,027

MD 32 Northbound

Over: Terrapin Branch

0.82 MI. SOUTH OF MD 144, Howard, MD

Built 2020 Load: 93.0 t ADT: 29,475

MD 32 Southbound

Over: Terrapin Branch

0.82 MI. SOUTH OF MD 144, Howard, MD

Built 2020 Load: 93.0 t ADT: 29,475

MD 32 Northbound

Over: Middle Patuxent River

1.18 MILE SOUTH OF MD 144, Howard, MD

Built 2020 Load: 93.0 t ADT: 29,475

MD 32 Southbound

Over: Middle Patuxent River

1.18 MILE SOUTH OF MD144A, Howard, MD

Built 2020 Load: 93.0 t ADT: 29,475

MD 100

Over: TRIB TO RED HILL BRANCH

.25 M E OF LONG GATE PKWY, Howard, MD

Built 1993 Load: 99.9 t ADT: 80,680

MD 100

Over: RED HILL BRANCH

0.6 M E OF LONG GATE PKWY, Howard, MD

Built 1993 Load: 99.9 t ADT: 80,680

MD 100M (COCA COLA

Over: BRANCH OF DEEP RUN

0.06 M N OF AA CO LINE, Howard, MD

Built 1998 Load: 99.9 t ADT: 13,792

HIPSLEY MILL ROAD

Over: CABIN BRANCH

0.4 MI E OF ELLICOTT ROAD, Howard, MD

Built 2003 Load: 99.9 t ADT: 421

CENTENNIAL LANE

Over: BRANCH OF LITTLE PATUXEN

0.3 MI S OF FREDERICK RD, Howard, MD

Built 1992 Load: 99.9 t ADT: 13,080

AMBERWOODS WAY

Over: TRIB S BR PATAPSCO RIVER

2000 FT. WEST OF MD 32, Howard, MD

Built 2000 Load: 99.9 t ADT: 30

RED DAHLIA DRIVE

Over: UNNAMED STREAM

800' S of Old Frederick R, Howard, MD

Built 1995 Load: 99.9 t ADT: 20

BIG BRANCH DRIVE

Over: TRIB TO TRIADELPHIA RES

1/4 MI S OF HOWARD RD, Howard, MD

Built 2000 Load: 99.9 t ADT: 50

ELIOTS OAK ROAD

Over: TRIB TO WILDE LAKE

1/8 MI S OF MD 108, Howard, MD

Built 1972 Load: 99.9 t ADT: 100

SUNNY SPRING

Over: TRIB TO LITTLE PATUXENT

500' N of Owen Brown Rd, Howard, MD

Built 1972 Load: 99.9 t ADT: 100

BRAMPTON PARKWAY

Over: UNNAMED STREAM

1000' S of MD 103, Howard, MD

Built 1972 Load: 99.9 t ADT: 150

WETHERED DR

Over: UNNAMED STREAM

500' W OF EXECUTIVE PARK, Howard, MD

Built 2000 Load: 99.9 t ADT: 30

PEBBLE CREEK DRIVE

Over: UNNAMED STREAM

300' W OF DEBORAH JEAN DR, Howard, MD

Built 1998 Load: 99.9 t ADT: 25

TIBER FALLS DRIVE

Over: TIBER BRANCH

500' NW OF OLD COLUMBIA P, Howard, MD

Built 2000 Load: 99.9 t ADT: 50

TOWN SQUARE PARKWA

Over: LITTLE PATUXENT RIVER

1300 FT S OF RESORT RD, Howard, MD

Built 2015 Load: 99.9 t

TIBER ALLEY

Over: TIBER RIVER

0.01 MI S MAIN STREET, Howard, MD

Built 1935 Load: 12.2 t ADT: 45

DAISY ROAD

Over: LITTLE CATTAIL CREEK

0.3 MI N JENNINGS CHAPEL, Howard, MD

Built 1935 Load: 12.7 t ADT: 1,525

PFEFFERKORN ROAD

Over: MIDDLE PATUXENT RIVER

1 MI S OF MD RTE 144, Howard, MD

Built 1935 Load: 24.9 t ADT: 1,116

UNION CHAPEL ROAD

Over: CATTAIL CREEK

0.5 MI E OF DAISY RD, Howard, MD

Built 1955 Load: 26.8 t ADT: 1,052

HENRYTON ROAD

Over: TRIBUTARY OF PATAPSCO RI

2.09 MI N OF MD RTE 99, Howard, MD

Built 1925 Load: 29.0 t ADT: 1,113

HENRYTON ROAD

Over: TRIBUTARY OF PATAPSCO RI

1.24 MI N OF MD RTE 99, Howard, MD

Built 1925 Load: 36.3 t ADT: 1,180

SENECA ROAD

Over: BEAVER RUN BRANCH

0.5 MI E OF US RTE 29, Howard, MD

Built 1960 Load: 38.5 t ADT: 896

BROWNS BRIDGE ROAD

Over: PATUXENT RIVER

1.4 MI E OF MD 650, Howard, MD

Built 1953 Load: 39.9 t ADT: 5,772

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