State profile · Below median Poor share

Maryland bridge safety

Condition ratings, load ratings, and Poor-condition data for every public highway bridge in Maryland, based on the FHWA National Bridge Inventory.

5,527
Public bridges
25.9%
Good condition
4.3%
Poor condition

Data updated May 2026

Total Bridges

5,527

Public highway bridges in Maryland

Good Condition

25.9%

1,432 bridges rated 7-9

-24.1pp vs 50% benchmark

Poor Condition

4.3%

236 bridges whose lowest applicable component is rated 0-4

-2.7pp vs national avg 7.0%

Maryland vs national bridge condition

Maryland - Good condition share 25.9%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

Maryland - Poor-condition share 14.2%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.

Maryland vs nearby ranks

Adjacent states by Poor-condition share (lower share = better)

States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Maryland on the same metric.

CT

Connecticut

3.95% top marginal rate
Structure
Progressive
Burden @ $100K
$4,277

TN

Tennessee

3.97% top marginal rate
Structure
Progressive
Burden @ $100K
$20,426
Selected

MD

Maryland

4.27% top marginal rate
Structure
Progressive
Burden @ $100K
$5,527

CO

Colorado

4.32% top marginal rate
Structure
Progressive
Burden @ $100K
$8,965

OR

Oregon

4.46% top marginal rate
Structure
Progressive
Burden @ $100K
$8,310

Bridges Needing Most Attention in Maryland

Six lowest-condition bridges in Maryland, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.

All Bridges in Maryland

MD 291

Fair

Over: MILLS BRANCH

0.19 MILE WEST OF US 301, Kent, MD

Built 1934 Load: 39.5 t ADT: 2,961

BONIFANT ROAD

Fair

Over: NORTHWEST BRANCH

0.6 MILES EAST OF MD 182, Montgomery, MD

Built 1971 Load: 39.5 t ADT: 34,277

MD 234

Fair

Over: CHAPTICO CREEK

0.22 MILE WEST OF MD 238, St. Mary's, MD

Built 1959 Load: 39.5 t ADT: 8,121

US 50 WB

Fair

Over: NORTH BRANCH SKIPTON CRE

0.86 MILE EAST OF MD 662B, Talbot, MD

Built 1948 Load: 39.5 t ADT: 31,938

MD 51

Fair

Over: SAWPIT RUN

0.48 M E OF PACK HORSE RD, Allegany, MD

Built 1932 Load: 39.9 t ADT: 2,142

MD 695 RAMP 4'F'

Fair

Over: FORCE MAIN

0.19 MI E OF MD 695, Baltimore, MD

Built 1973 Load: 39.9 t ADT: 5,141

ILCHESTER ROAD

Fair

Over: PATAPSCO RIVER

1.58 MI S OF MD RTE 144, Baltimore, MD

Built 1955 Load: 39.9 t ADT: 2,052

CORBETT ROAD

Fair

Over: CARROLL BRANCH

0.29 MI E OF CARROLL ROAD, Baltimore, MD

Built 1922 Load: 39.9 t ADT: 252

OWINGS MILLS BOULE

Fair

Over: GWYNNS FALLS

1 MI N OF MD 140, Baltimore, MD

Built 1989 Load: 39.9 t ADT: 29,343

IS 95 NB

Fair

Over: MIDDLE BRANCH

0.6 MI. E. OF RUSSELL ST., Baltimore city, MD

Built 1979 Load: 39.9 t ADT: 60,992

US 40 EB OFF RAMP

Fair

Over: I-895 SB ON RAMP

MILEPOST M13.13, Baltimore city, MD

Built 1957 Load: 39.9 t ADT: 4,627

NAYLORS MILL ROAD

Fair

Over: BIG PIPE CREEK

0.41 MI N OF MD 77, Carroll, MD

Built 1947 Load: 39.9 t ADT: 24

NINER ROAD

Fair

Over: SOUTH BRANCH MIDDLE RUN

0.59 MI N OF MD 32, Carroll, MD

Built 1974 Load: 39.9 t ADT: 756

WOODVILLE ROAD

Fair

Over: SWANSON CREEK

1 MI E WILKERSON ROAD, Charles, MD

Built 1934 Load: 39.9 t ADT: 1,383

MD 806A

Fair

Over: LITTLE HUNTING CREEK

0.84 MILE NORTH OF US 15, Frederick, MD

Built 1927 Load: 39.9 t ADT: 1,072

MD 80

Fair

Over: MONOCACY RIVER

0.08 MILE EAST OF MD 880, Frederick, MD

Built 1973 Load: 39.9 t ADT: 4,472

US 15 SB

Fair

Over: FLAT RUN

0.2 MILE SOUTH OF MD 140, Frederick, MD

Built 1965 Load: 39.9 t ADT: 18,340

IS 95 NB

Fair

Over: CSX TRANSPORTATION

0.75 M N OF GUILFORD ROAD, Howard, MD

Built 1970 Load: 39.9 t ADT: 187,920

IS 95 SB

Fair

Over: CSX TRANSPORTATION

0.75 M N OF GUILFORD ROAD, Howard, MD

Built 1970 Load: 39.9 t ADT: 187,920

OLD COLUMBIA PIKE

Fair

Over: TIBER HUDSON BRANCH

0.01 MI E OF MAIN STREET, Howard, MD

Built 1997 Load: 39.9 t ADT: 5,887

COLUMBIA ROAD

Fair

Over: RED HILL BRANCH

0.4 MI N OF MD RTE 108, Howard, MD

Built 1986 Load: 39.9 t ADT: 4,946

BERRYVILLE RD

Fair

Over: SENECA CREEK TRIB

1 MI N OF JCT SR 112, Montgomery, MD

Built 1930 Load: 39.9 t ADT: 821

GREENWAY DRIVE

Fair

Over: LITTLE FALLS BRANCH

0.1 MI SOUTH OF MD 190, Montgomery, MD

Built 1962 Load: 39.9 t ADT: 886

GEORGE WASHINGTON

Fair

Over: TRIBUTARY TO NORTH BRANC

.5 MI NORTH OF MD-200, Montgomery, MD

Built 1973 Load: 39.9 t ADT: 518

BEACH DRIVE

Fair

Over: ROCK CREEK

1.3 MI SOUTH OF MD 547, Montgomery, MD

Built 1962 Load: 39.9 t ADT: 8,611

MD 410

Fair

Over: SLIGO CREEK

0.23 MILE WEST OF MD 212, Prince George's, MD

Built 1934 Load: 39.9 t ADT: 21,452

AGER ROAD

Fair

Over: NORTHWEST BRANCH

0.73 MI N OF MD 500, Prince George's, MD

Built 1961 Load: 39.9 t ADT: 18,463

GALLAHAN ROAD

Fair

Over: TINKERS CREEK

0.59 MILES NORTH OF MD 22, Prince George's, MD

Built 1989 Load: 39.9 t ADT: 4,747

GREENBELT METRO DR

Fair

Over: WMATA RAILROAD

0.2 MI S OF I-95, Prince George's, MD

Built 1989 Load: 39.9 t ADT: 1,591

IS 68 EB

Fair

Over: CREEK RD

1.0 MILE WEST OF IS 70, Washington, MD

Built 1965 Load: 39.9 t ADT: 19,000

IS 70 WB

Fair

Over: GR TONOLOWAY CK, CO RDS

0.67 MILE W OF MD 144WB, Washington, MD

Built 1965 Load: 39.9 t ADT: 39,222

MD 935

Fair

Over: MOORES RUN

0.28 MI N OF MD 36, Allegany, MD

Built 1933 Load: 40.4 t ADT: 1,430

MD 53

Fair

Over: WARRIOR RUN

0.11 MILE SOUTH OF MD 636, Allegany, MD

Built 1953 Load: 40.4 t ADT: 12,872

IS 68

Fair

Over: KELLY BLVD, CSX TRANS.

0.29 MI W OF KELLY RD, Allegany, MD

Built 1968 Load: 40.4 t ADT: 46,611

IS 595

Fair

Over: WEEMS CREEK

0.67 MI W OF MD 70, Anne Arundel, MD

Built 1953 Load: 40.4 t ADT: 123,940

MD 695 IL

Fair

Over: AMTRAK

1.12 MILE NORTH OF MD 702, Baltimore, MD

Built 1972 Load: 40.4 t ADT: 74,892

MANTUA MILL ROAD

Fair

Over: WESTERN RUN

0.1 MI S GREEN RD, Baltimore, MD

Built 1981 Load: 40.4 t ADT: 743

I-95

Fair

Over: REDHOUSE RUN

0.6 MI S OF MD 588, Baltimore, MD

Built 1960 Load: 40.4 t ADT: 168,940

LIBERTY HEIGHTS AV

Fair

Over: CSX

0.1 MI E OF LIBERTY MED C, Baltimore city, MD

Built 1916 Load: 40.4 t ADT: 32,811

I-95 RAMP O

Fair

Over: MDTA YARD, WETLANDS

RMP KEITH AVE TO I95S, Baltimore city, MD

Built 1978 Load: 40.4 t ADT: 3,828

LAUREL GROVE ROAD

Fair

Over: FAULKNER BRANCH

0.3 MILES NW OF MD 313, Caroline, MD

Built 1995 Load: 40.4 t ADT: 1,182

HAPES MILL ROAD

Fair

Over: BIG PIPE CREEK

1 MI E CROUSE MILL RD, Carroll, MD

Built 1974 Load: 40.4 t ADT: 102

PILOT TOWN ROAD

Fair

Over: CONOWINGO CREEK

0.61 MI E OF OAKWOOD RD, Cecil, MD

Built 1972 Load: 40.4 t ADT: 878

US 15 SB

Fair

Over: LITTLE OWENS CREEK

1.74 MILE NORTH OF MD 550, Frederick, MD

Built 1954 Load: 40.4 t ADT: 14,250

HEAPS ROAD

Fair

Over: BROAD CREEK

0.5 MILES NE OF MD 543, Harford, MD

Built 1979 Load: 40.4 t ADT: 529

MD 175 EB

Fair

Over: LITTLE PATUXENT RIVER

0.27 MILE NORTH OF US 29, Howard, MD

Built 1974 Load: 40.4 t ADT: 47,121

CENTENNIAL LANE

Fair

Over: CLARKS CREEK

0.3 MI N MD RTE 108, Howard, MD

Built 1987 Load: 40.4 t ADT: 9,265

IS 270

Fair

Over: GR SENECA CR & GAME PRE

1.17 MILES N OF MD 124, Montgomery, MD

Built 1954 Load: 40.4 t ADT: 154,247

RIVER ROAD

Fair

Over: SENECA CREEK

0.5 MI W OF SENECA ROAD, Montgomery, MD

Built 1959 Load: 40.4 t ADT: 3,284

MD 5 SB

Fair

Over: PISCATAWAY CREEK

2.13 MILES N OF MD 373, Prince George's, MD

Built 1956 Load: 40.4 t ADT: 38,195

Showing 2,351-2,400 of 5,527 bridges

Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.

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.