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 TUCKAHOE CREEK
0.6 M E OF MD 312, Caroline, MD
Over: BASIN RUN
0.19 MI S OF WAYNE ST, Cecil, MD
Over: MONOCACY RIVER
0.1 MI SOUTH OF GAS HOUSE, Frederick, MD
Over: GEORGES CREEK
1.70 MI N OF MD 935, Allegany, MD
Over: AMTRAK
1.12 MILE NORTH OF MD 702, Baltimore, MD
Over: CONE BRANCH
0.25 MI SOUTH OF MD 17, Frederick, MD
Over: OWENS CREEK
AT FRANKLINVILLE RD INT, Frederick, MD
Over: AMTRAK
2.20 MILES SOUTH OF US 40, Harford, MD
Over: CSX RR TRACKS
ANNE ARUNDEL COUNTY LINE, Howard, MD
Over: Shady Grove Road
4.86 MI W. OF MD 97, Montgomery, MD
Over: BR OF TUCKAHOE CREEK
0.12 M S OF MILL RIDGE RD, Talbot, MD
Over: SECOND MINE BRANCH
0.5 M NW WHITE HALL ROAD, Baltimore, MD
Over: SCOTTS LEVEL BRANCH
2.5 MI. S. OF IS 795, Baltimore, MD
Over: BIG ELK CREEK
2.14 MI W OF DELAWARE, Cecil, MD
Over: BR OF POTOMAC RIVER
1.62 MI S. OF MD 344, Charles, MD
Over: TRIB / LITTLE DEER CREEK
1.5 MILES NE OF MD 23, Harford, MD
Over: UNNAMED TRIB TO SENECA C
1.0 Mile North of MD 124, Montgomery, MD
Over: C&O CANAL
0.1 miles from North Bran, Allegany, MD
Over: MAGOTHY BRANCH
1.5 MI W OF MD 2, Anne Arundel, MD
Over: NORTH RIVER
200 FT. FROM MD 450, Anne Arundel, MD
Over: PINEY RUN
0.5 MI S OF HANOVER ROAD, Anne Arundel, MD
Over: TRIBUTARY TO WESTERN RUN
0.4 MI S OF QUAKER BOTTOM, Baltimore, MD
Over: TRIBUTARY TO GUNPOWDER F
0.4 MI S OF MONKTON ROAD, Baltimore, MD
Over: I-695 STEMMERS RUN
I695 IS95 Interchange, Baltimore, MD
Over: HERRING RUN
Milepost M13.72, Baltimore city, MD
Over: MASON'S BRANCH
ON QUEEN ANNES CO LINE, Caroline, MD
Over: TRIB TO EAST BRANCH
1.21 M N OF MD 482, Carroll, MD
Over: BIG PIPE CREEK
0.41 MILES SOUTH OF MD 97, Carroll, MD
Over: BASIN RUN
0.52 MI N OF RUSSELL RD, Cecil, MD
Over: STONY RUN
0.55 MI W OF MD 274, Cecil, MD
Over: BASIN RUN
0.5 MI N OF DR. JACK RD., Cecil, MD
Over: JANE CARRS RUN
0.7 MILES SW OF MD 136, Harford, MD
Over: BUCKHORN RUN
AT INTERSECTION OF MD 182, Montgomery, MD
Over: FULL MILL BRANCH
0.42 M S/WHITES LNDNG RD, Prince George's, MD
Over: STREAM
100 FT N. OF 54TH PLACE, Prince George's, MD
Over: TRIB. OF LANDIS SPRING
JCT. LONDONTOWNE DR, Washington, MD
Over: ADKINS MILL POND
0.20 MI N OF MD 350, Wicomico, MD
Over: NORTH BRANCH
0.23 MI N OF MD 36, Allegany, MD
Over: TRIBUTARY TO NORRIS RUN
0.35 MI E OF NICODEMUS RD, Baltimore, MD
Over: BLACK BRANCH
1.3 MI. S. OF MD 214, Prince George's, MD
Over: MTA, CSX RAILROAD
0.4 MI W OF MD RTE 140, Baltimore, MD
Over: I95/I695 INTERCHANGE
I-95/I-695 Interchange, Baltimore, MD
Over: MTA AND JONES FALLS
1.5 MI S NORTHERN PKWY, Baltimore city, MD
Over: GILBERT CREEK
1.06 MILES WEST OF MD 5, Charles, MD
Over: FISHING CREEK
0.25 M E OLD FREDERICK RD, Frederick, MD
Over: CSX TRANSPORTATION
0.45 MI N OF MD 410, Montgomery, MD
Over: BROAD RUN TRIBUTARY
0.3 MI E OF WASCHE ROAD, Montgomery, MD
Over: Gum Springs & Paint Bran
1.40 Mi East of MD650, Montgomery, MD
Over: NASSAWANGO CREEK
2.05 MI SW OF MD 12, Worcester, MD
Over: LITTLE FALLS
1.2 MI N MIDDLETOWN RD, Baltimore, MD
Showing 4,251-4,300 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.