Total Bridges
5,527
Public highway bridges in Maryland
State profile · Below median Poor share
Condition ratings, load ratings, and Poor-condition data for every public highway bridge in Maryland, based on the FHWA National Bridge Inventory.
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%
Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.
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
TN
MD
CO
OR
Six lowest-condition bridges in Maryland, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.
Over: BEAR CREEK
0.01 MI N OF WALNUT ST, Garrett, MD
Over: HAWLINGS RIVER
2.8 MILES NORTH OF MD 108, Montgomery, MD
Over: BEAVER CREEK
0.1 MI W OF ALT US RTE 40, Washington, MD
Over: WATERSPOUT RUN
2.63 MI. WEST MD 25, Baltimore, MD
Over: CSX RAILROAD
0.1 MI NW OF US RTE 40, Baltimore, MD
Over: LITTLE PATUXENT RIVER
0.5 MI W OF US RTE 29, Howard, MD
Over: TRIB TO HENSON CREEK
0.01 MI N OF FERGUSON LA, Prince George's, MD
Over: CLASH CREEK
0.42 MI W OF MD 210, Prince George's, MD
Over: TRIB OF UPPER THOROFARE
AT HARRISON POINT ROAD, Somerset, MD
Over: TOWN RUN
0.3 MILE NORTH OF MD 5, St. Mary's, MD
Over: TRED AVON RIVER
0.12 MILE SOUTH OF MD 322, Talbot, MD
Over: LITTLE ANTIETAM CREEK
0.626 MILE SOUTH OF MD 60, Washington, MD
Over: GROVE CREEK
0.2 MI N OLD FORGE RD, Washington, MD
Over: AMTRAK
0.71 MILE SOUTH OF MD 170, Anne Arundel, MD
Over: DEEP RUN
HOWARD COUNTY LINE, Anne Arundel, MD
Over: CSX TRANSPORTATION
0.08 MILE WEST OF US 40, Baltimore, MD
Over: LONG QUARTER BRANCH
0.08 MI W OF MD 146, Baltimore, MD
Over: CSX TRANSPORTATION
0.151 MILE WEST OF MD 20, Carroll, MD
Over: MORGAN RUN
3.63 MILE SOUTH OF MD 32, Carroll, MD
Over: NORTH BRANCH OF POTOMAC
ON WEST VIRGINIA LINE, Garrett, MD
Over: JAMES RUN
0.5 MILES E OF MD 136, Harford, MD
Over: LITTLE PATUXENT RIVER
0.38 MILE SOUTH OF MD 32, Howard, MD
Over: LITTLE SENECA CREEK
1.44 MILES NORTH OF MD 27, Montgomery, MD
Over: ROCK RUN
1 MI SOUTH OF MD 189, Montgomery, MD
Over: CSXT RAILROAD
0.08 MI E OF US 220, Allegany, MD
Over: PATAPSCO RIVER
ON HOWARD CO LINE, Baltimore, MD
Over: CSX TRANSPORTATION
0.26 MILE NORTH OF US 1, Baltimore, MD
Over: MTA LIGHT RAIL
Milepost 5.2, Baltimore, MD
Over: HERRING RUN
0.6 MI W ERDMAN AVE, Baltimore city, MD
Over: WB MCCOMAS ST
0.15 MI N OF HANOVER ST, Baltimore city, MD
Over: LYONS CREEK
ON ANNE ARUNDEL CO LINE, Calvert, MD
Over: STONE RUN
0.59 MI N OF MD 273, Cecil, MD
Over: CSX TRANSPORTATION
0.25 mi E MD RTE 925, Charles, MD
Over: CARROLL CREEK
365' NORTH OF MD 144, Frederick, MD
Over: CASSELMAN RIVER
1.08 MILE EAST OF MD 495, Garrett, MD
Over: CASSELMAN RIVER
1.08 MILE EAST OF MD 495, Garrett, MD
Over: TRIB / BIG BRANCH
0.6 MILES N OF W HEAPS RD, Harford, MD
Over: TRIB / JACKS HOLE
0.2 MILES NE OF MD 165, Harford, MD
Over: HEAVENLY WATERS
0.4 MILES SW OF MD 924, Harford, MD
Over: JAMES RUN
6.9 MI N BALT-HAR CO LINE, Harford, MD
Over: LITTLE PATUXENT RIVER
1.62 MILES S OF MD 175, Howard, MD
Over: SUCKER BRANCH
0.05 MI OF RODGERS AVE, Howard, MD
Over: ROCK CREEK
0.55 MILE EAST OF MD 186, Montgomery, MD
Over: CSXT RR & WMATA METRO
0.05 MILES EAST OF MD 355, Montgomery, MD
Over: ANTIETAM CREEK
0.8 MI W OF US RTE 40, Washington, MD
Over: ELK LICK CREEK
0.62 M E OF BR NO 0115400, Allegany, MD
Over: HOWARD STREET
0.44 MI E OF US 48H, Allegany, MD
Over: SEVERN RUN
1.2 MILE NORTH OF MD 175, Anne Arundel, MD
Over: MTA LIGHT RAIL, JONES FA
0.5 MI N OF NORTHERN PKWY, Baltimore, MD
Over: GUNPOWDER FALLS
1.7 MI. E. OF YORK ROAD, Baltimore, MD
Over: GUNPOWDER FALLS
2.3 MI S BALT-HAR CO LINE, Baltimore, MD
Over: HERRING RUN
MORAVIA RAMP TO PULASKI H, Baltimore city, MD
Over: CSX LOCUST POINT YARD
0.5 mi N OF EXIT FOR I395, Baltimore city, MD
Over: OTTERS POINT CREEK
0.1 MILE NORTH OF US 40, Harford, MD
Over: DEER CREEK
1.7 MILES S OF MD 165, Harford, MD
Over: SLIGO CREEK
0.08 MILE SOUTH OF MD 410, Prince George's, MD
Showing 2,851-2,900 of 5,527 bridges
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.
Understanding Bridge Conditions
How FHWA rates bridge condition on a 0-9 scale.
Check Your Daily Bridges
How to look up bridge condition data for bridges on your route.
Read our methodology — how this data is sourced, computed, and verified.
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.