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: LITTLE SENECA LAKE
0.39 MILE NORTH OF MD 117, Montgomery, MD
Over: Clara Barton Parkway EB
0.34 MILE EAST OF VA LINE, Montgomery, MD
Over: CEDAR LANE
0.65 MILE EAST OF MD 355, Montgomery, MD
Over: ROCK CREEK
0.1 MI S FORSYTHE AVENUE, Montgomery, MD
Over: TRIBUTARY TO SLIGO CREEK
825 FEET EAST OF MD 97, Montgomery, MD
Over: WILLET BRANCH
0.1 MI N DORSET AVE, Montgomery, MD
Over: SLIGO CREEK
0.28 MI SE OF MONT CO, Montgomery, MD
Over: BRIER DITCH
0.11 MI N OF SARVIS AVE, Prince George's, MD
Over: WESTERN BRANCH
0.79 MILE NORTH OF MD 193, Prince George's, MD
Over: PAINT BRANCH
1.11 M E OF MONT CO LINE, Prince George's, MD
Over: HENSON CREEK
0.35 MI N OF FERGUSON LA, Prince George's, MD
Over: REHOBETH BRANCH
0.3 MI S OF REHOBETH ROAD, Somerset, MD
Over: BRANCH JARBOESVILLE RUN
.8 MI CHANCELLORS RUN RD, St. Mary's, MD
Over: TRIB TO LIT ANTIETAM CRK
0.70 MILE WEST OF US 40AL, Washington, MD
Over: ANTIETAM CREEK
2.65 MI SE OF MD RTE 65, Washington, MD
Over: AYERS CREEK
0.71 MILE WEST OF MD 611, Worcester, MD
Over: EVITTS CREEK
0.21 M E OF BR NO 0109900, Allegany, MD
Over: AMTRAK, STONY RUN
0.14 MI S OF IS 195, Anne Arundel, MD
Over: SAWMILL CREEK
0.2 MI W OF MD 3, Anne Arundel, MD
Over: LOWER LEVEL ROADWAY
BWI AIRPORT, Anne Arundel, MD
Over: LITTLE GUNPOWDER FALLS
ON HARFORD CO LINE, Baltimore, MD
Over: SLADE RUN
3.05 MI E OF MD 30, Baltimore, MD
Over: JONES FALLS
0.02 MI W OF MD 25, Baltimore, MD
Over: GWYNNS FALLS
0.03 MI S OF MD 400, Baltimore, MD
Over: THE NARROWS
ON SOLOMONS ISLAND, Calvert, MD
Over: CONE BRANCH
AT BENNIES HILL RD INT, Frederick, MD
Over: LEWIS MILL BRANCH
0.75 MI W OF OLD MIDDLETO, Frederick, MD
Over: LITTLE DEER CREEK
2.35 MILES SOUTH OF MD 24, Harford, MD
Over: BYNUM RUN
0.5 MILES NE OF MD 24, Harford, MD
Over: EAST BRANCH/WINTERS RUN
0.01 M W OF PHILLIPS M RD, Harford, MD
Over: MORGAN CREEK
0.8 MI SE OF MD RTE 213, Kent, MD
Over: NORTHWEST BRANCH
0.05 MILE SOUTH OF MD 650, Prince George's, MD
Over: POTOMAC RIVER
ON VIRGINIA LINE, Prince George's, MD
Over: SOUTHEAST CREEK
0.1 MILE SOUTH OF MD 19, Queen Anne's, MD
Over: POCOMOKE RIVER
0.19 MILES EAST OF MD 354, Worcester, MD
Over: POTOMAC RIVER
ON WEST VIRGINIA LINE, Allegany, MD
Over: TRACEYS CREEK
1.73 MI W OF MD 258, Anne Arundel, MD
Over: BELL BRANCH
1.2 MI EAST OF RTE 424, Anne Arundel, MD
Over: JONES FALLS
0.06 MILE SOUTH OF MD 133, Baltimore, MD
Over: STEMMERS RUN
0.39 MILES EAST OF I-695, Baltimore, MD
Over: WEST BRANCH OF HERBERT R
0.06 MI W OF OREGON AVE, Baltimore, MD
Over: REISTERSTOWN ROAD (MD 14
0.4 MI NW OF OWINGS MILLS, Baltimore, MD
Over: CONRAIL YARD
Milepost M56.9, Baltimore city, MD
Over: CHEMICAL ROAD
0.02 MI N OF MD RTE 173, Baltimore city, MD
Over: HUNTING CREEK
.086 MILE NORTH OF MD 263, Calvert, MD
Over: HALL CREEK
0.32 MILE EAST OF MD 778, Calvert, MD
Over: LITTLE PIPE CREEK
0.18 MI S OF UNION BRIDGE, Carroll, MD
Over: LITTLE NORTHEAST CREEK
0.65 MILE EAST OF MD 272, Cecil, MD
Over: LITTLE NORTHEAST CREEK
0.65 MILE EAST OF MD 272, Cecil, MD
Over: AMTRAK
0.17 MILE EAST OF MD 7B, Cecil, MD
Showing 2,251-2,300 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). 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 |