Total Bridges
5,527
Public highway bridges in Maryland
State profile · Below national median SD
Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in Maryland — drawn straight from the FHWA National Bridge Inventory.
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 rated 0-4
Structurally Deficient
4.3%
236 bridges flagged for repair priority
-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 on the structurally deficient leaderboard (lower share = better)
States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below Maryland on the same metric.
09
47
24
08
41
Six lowest-condition bridges in Maryland, ranked by composite NBI rating. Each is inspected at least every 24 months.
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: BIG BRANCH
0.3 MILE E OF ST PAULS RD, Harford, MD
Over: Bonifant Road & NW Branc
2.07 Mi West of MD 650, Montgomery, MD
Over: AMTRAK
0.1 MILE EAST OF MD 564, Prince George's, MD
Over: LITTLE CONOCOCHEAGUE CRE
1.34 MILES EAST OF MD 68, Washington, MD
Over: LOCAL STREAM
SOUTH OF MD 180, Frederick, MD
Over: ELKLICK RUN
0.73 M S OF BR NO 0112700, Allegany, MD
Over: GEORGES CREEK
0.10 MILE SOUTH OF MD 937, Allegany, MD
Over: INGLESIDE AVENUE
0.49 MILE SOUTH OF US 40, Baltimore, MD
Over: BACK CREEK
0.3 M E OF FERRY SLIP RD, Cecil, MD
Over: MIDDLE CREEK
0.9 MILE NORTH OF US 40, Frederick, MD
Over: BYNUM RUN
1.2 MILES NE OF MD 924, Harford, MD
Over: BROAD CREEK
1.4 MILES SW OF MD 136, Harford, MD
Over: MD 210 Service Rd.
1.5 MILE SOUTH OF I-495, Howard, MD
Over: IS 270Y MEDIAN
AT WESTLAKE TERRACE, Montgomery, MD
Over: OLD FARM CREEK
1.0 MILE EAST OF I-270, Montgomery, MD
Over: TRIBUTARY TO CABIN JOHN
0.1M S OF WOOTTON PKWY, Montgomery, MD
Over: MD 200 (ICC)
0.8 MI W of I-95, Prince George's, MD
Over: CSX TRANSPORTATION
0.06 MILE EAST OF MD 491, Washington, MD
Over: PINEY RUN
1.07 MILES S OF MD 26, Carroll, MD
Over: RANDOLPH ROAD
1.4 MI E OF MD 185, Montgomery, MD
Over: MARLEY CREEK
.56 MI. S. OF HOSPITAL DR, Anne Arundel, MD
Over: SWEATHOUSE BRANCH
0.60 MI E OF MD 147, Baltimore, MD
Over: MASON BRANCH
ON QUEEN ANNES CO LINE, Caroline, MD
Over: GRAMIES RUN
0.27 MI N OF RUSSELL RD, Cecil, MD
Over: MIDDLE CREEK
AT MIDDLE POINT ROAD, Frederick, MD
Over: BR OF TUSCARORA CREEK
SOUTH OF CAP STINE RD INT, Frederick, MD
Over: FISHING CREEK
0.25 M N DEVILBLISS BR RD, Frederick, MD
Over: MD 200 (ICC)
4.38 MI W OF MD 97, Montgomery, MD
Over: Northwest Branch
1.40 Mi West of MD 650, Montgomery, MD
Over: SHARMANS BRANCH
0.6 MI S OF BURNSIDE DR, Washington, MD
Over: POCOMOKE RIVER
ON SOMERSET CO LINE, Worcester, MD
Over: GILBERT SWAMP RUN
0.14 M W OF ST CLAIR ROAD, Charles, MD
Over: LITTLE PIPE CREEK
ON CARROLL CO LINE, Frederick, MD
Over: PINEY RUN
1.4 MI W OF MD 88, Baltimore, MD
Over: LITTLE DEER CREEK
0.03 MI S OF HARRIS M RD, Baltimore, MD
Over: WALKWAY
UNDER IS 95, Baltimore city, MD
Over: TIDY ISLAND CREEK
0.24 MI SW OF DE LINE, Caroline, MD
Over: BEAR BRANCH
1.37 MILES N OF MD 140, Carroll, MD
Over: MONOCACY RIVER
0.22 M S OF BR NO 1018400, Frederick, MD
Over: MONOCACY RIVER
0.22 M S OF BR NO 1018400, Frederick, MD
Over: BYNUM RUN
0.3 MILES NW OF MD 22, Harford, MD
Over: MATAPONI CREEK
0.79 M N OF NORTH KEY RD, Prince George's, MD
Over: PURPLE LINE
1 MILES NORTH OF MD 410, Montgomery, MD
Over: BRANCH OF MILL CREEK
0.2 M W OF DULIN ROAD, Talbot, MD
Over: JACKSON RUN
0.03 MI W OF RAILROAD AVE, Allegany, MD
Over: DORSEY RUN
1.2 MILES WEST OF MD 175, Anne Arundel, MD
Over: AMTRAK
0.156 MILE WEST OF MD 150, Baltimore, MD
Over: AMTRAK
0.13 MILE SOUTH OF MD 545, Cecil, MD
Over: EAST BRANCH/WINTERS RUN
0.3 MI E OF PHILLIPS M RD, Harford, MD
Over: PLUMTREE RUN
0.38 MI. N. PLUMTREE RD., Harford, MD
Showing 4,501-4,550 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). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.
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.
| Publisher | Kiznis Studio |
| Sources | FHWA National Bridge Inventory, public U.S. government datasets |