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: BRANCH OF BEAVERDAM RUN
0.71 MI N OF CHURCH LANE, Baltimore, MD
Over: BR OF HILL TOP FORK
1.99 MILES SOUTH OF MD 6, Charles, MD
Over: MONOCACY RIVER
0.2 MILE WEST OF MD 194, Frederick, MD
Over: N. BRANCH OF CASSELMAN R
0.67 MI NW OF MD RTE 495, Garrett, MD
Over: BREAD AND CHEESE BRANCH
1.1 MILES NORTH OF MD 152, Harford, MD
Over: DEEP RUN
0.5 MI SE OF US 1, Howard, MD
Over: COVENTRY ROAD
1.66 MILES S OF MD 337, Prince George's, MD
Over: NORTHWOOD DRIVE
0.516 MILE WEST OF US 13, Wicomico, MD
Over: YOUGHIOGHENY RIVER
0.36 MILE EAST OF MD 39A, Garrett, MD
Over: ELM ROAD
BWI AIRPORT RAMP A, Anne Arundel, MD
Over: TRIBUTARY TO LITTLE GUNP
0.37 MI NE OF MD RTE 145, Baltimore, MD
Over: MIDDLE CREEK
0.6 MI S OF BIDLE ROAD, Frederick, MD
Over: SNOWDEN RIVER PARKWAY
0.84 MILE WEST OF MD 108, Howard, MD
Over: LITTLE PATUXENT RIVER
0.23 MILE NORTH OF IS 70, Howard, MD
Over: SENECA CREEK
0.2 MILE EAST OF MD 107, Montgomery, MD
Over: POCOMOKE RIVER
ON SOMERSET CO LINE, Worcester, MD
Over: PICTURE SPRING BRANCH
0.3 MI SOUTH OF MD 32, Anne Arundel, MD
Over: GWYNNS FALLS
0.3 M NW PAINTERS MILL RD, Baltimore, MD
Over: CAMPBELL ROAD
0.66 MI S OF MD RTE 43, Baltimore, MD
Over: AMTRAK
0.2 MI N OF MT ROYAL AVE, Baltimore city, MD
Over: WATTS CREEK
0.5 MI SE OF DENTON, Caroline, MD
Over: MEADOW BRANCH
1.24 MILE SOUTH OF MD 832, Carroll, MD
Over: BIG PIPE CREEK
0.15 MI SW OF EBBVALE RD, Carroll, MD
Over: CATTAIL BRANCH
0.74 MI N OF CARROLL CO, Frederick, MD
Over: JAMES RUN
1.6 MILES NORTH OF MD 543, Harford, MD
Over: LITTLE BENNETT CREEK
1.9 MI N OF MD 355, Montgomery, MD
Over: Ramp NW
0.6 mi W of Briggs Chaney, Montgomery, MD
Over: BEAVERDAM DITCH
0.43 MILE WEST OF MD 313, Queen Anne's, MD
Over: WMSRR
0.09 M S OF N MECHANIC ST, Allegany, MD
Over: RIVA ROAD
0.63 MILE WEST OF MD 2, Anne Arundel, MD
Over: PINEY BRANCH
0.76 MI SE OF MD RTE 228, Charles, MD
Over: TUSCARORA CREEK
1/4 MI. N. OF MONOCACY BL, Frederick, MD
Over: JAMES RUN
0.21 MI E OF MD 136, Harford, MD
Over: MIDDLE PATUXENT RIVER
1.2 MI S OF MD RTE 144, Howard, MD
Over: AMTRAK, STONY RUN
0.14 MI S OF IS 195, Anne Arundel, MD
Over: TRIBUTARY TO PINEY RUN
0.5 MI. W. OF RIDGE RD., Anne Arundel, MD
Over: LITTLE GUNPOWDER FALLS
ON HARFORD CO LINE, Baltimore, MD
Over: DEEP CREEK
0.68 MILE EAST OF MD 150, Baltimore, MD
Over: DESOTO RD
Milepost M52.7, Baltimore city, MD
Over: SHILOH ROAD
2.276 M S OF MD 482, Carroll, MD
Over: TUSCARORA CREEK
0.19 MI NE OF ADAMSTOWN R, Frederick, MD
Over: CARROLL CREEK
595' SOUTH OF MD 144, Frederick, MD
Over: CARROLL CREEK
0.1 MI S OF E CHURCH ST, Frederick, MD
Over: CATTAIL CREEK
0.5 MI N UNION CHAPEL RD, Howard, MD
Over: BROAD RUN TRIBUTARY
2 MI W OF JCT SR 109, Montgomery, MD
Over: PAINT BRANCH
GSA at White Oak, MD. I-, Montgomery, MD
Over: TRIBUTARY TO MAGOTHY RIV
0.56 Mi SOUTH OF JCT RT 2, Anne Arundel, MD
Over: NCR TRAIL & LITTLE FALLS
0.55 MILE SOUTH OF MD 45, Baltimore, MD
Over: BROAD RUN
0.35 MI E OF US ROUTE 1, Baltimore, MD
Over: TUSCARORA CREEK
1/4 MI. N. OF MONOCACY BL, Frederick, MD
Showing 4,701-4,750 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.