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: TRIB TO PATUXENT RIVER
0.2 MI SOUTH OF MD 198 EB, Prince George's, MD
Over: UNICORN BRANCH
0.48 M S OF KENT CO LINE, Queen Anne's, MD
Over: PASSERDYKE CREEK
ON WICOMICO CO LINE, Somerset, MD
Over: CONOCOCHEAGUE CREEK
0.20 MILE WEST OF US 11, Washington, MD
Over: WAGRAM CREEK
0.56 M N OF VA STATE LINE, Worcester, MD
Over: CSX TRANSPORTATION
0.18 MI W OF W VA LINE, Allegany, MD
Over: AMTRAK, PATAPSCO RIVER
0.96 MI E OF MD 295, Anne Arundel, MD
Over: PATAPSCO RIVER
AT HOWARD COUNTY LINE, Baltimore, MD
Over: LONG GREEN CREEK
0.02 MI N OF HARTLEY MILL, Baltimore, MD
Over: CSX TRANSPORTATION
.26 MI. N. OF I-95 & US 1, Baltimore, MD
Over: MTA METRO
@ METRO, Baltimore, MD
Over: JONES FALLS
0.03 MI N COLD SPRING LA, Baltimore city, MD
Over: MIDDLE BR, LIGHT RAIL
0.6 MI E RUSSELL ST, Baltimore city, MD
Over: MONOCACY RIVER
ON FRED CO LINE, Carroll, MD
Over: STONE RUN
0.35 MILE NORTH OF MD 276, Cecil, MD
Over: BIG MILL POND
3.21 MILES WEST OF MD 331, Dorchester, MD
Over: FLAT RUN
AT N SETON AVE INTERSECTN, Frederick, MD
Over: ANACOSTIA RIVER
0.05 MILE SOUTH OF MD 450, Prince George's, MD
Over: SWANSON CREEK
ON CHARLES CO LINE, Prince George's, MD
Over: OXON RUN
0.18 MILES NORTH OF MD 4, Prince George's, MD
Over: UNICORN BRANCH
1.4 MILES EAST OF MD 313, Queen Anne's, MD
Over: ANDOVER BRANCH
0.8 MI E BOLTON WOODS RD, Queen Anne's, MD
Over: LOCKS SWAMP CREEK
0.1 M W OF LAUREL VIEW LN, St. Mary's, MD
Over: OAK CREEK
0.64 MILE EAST OF MD 329, Talbot, MD
Over: PILCHARD CREEK
0.68 MILE N OF MD 756, Worcester, MD
Over: TRAPPE CREEK
0.07 MI S OF MD 376, Worcester, MD
Over: AMMENDALE BRANCH
154' S of Ammendale Road, Prince George's, MD
Over: JUMPERS HOLE ROAD
0.67 MILE EAST OF MD 2, Anne Arundel, MD
Over: CSX TRANSPORTATION
0.45 MI W OF MD 700, Baltimore, MD
Over: WHITEMARSH BRANCH
0.02 MI N OF MD 147, Baltimore, MD
Over: FORCE MAIN
0.03 MILE EAST OF MD 695, Baltimore, MD
Over: BRANCH OF WHITEMARSH RUN
1.04 MILE WEST OF IS 95, Baltimore, MD
Over: LITTLE FALLS
1.7 MI E OF MONKTON ROAD, Baltimore, MD
Over: BRANCH OF WHITE MARSH RU
0.1 MI E. HONEYGO BLVD., Baltimore, MD
Over: MTA LIGHT RAIL AND STORA
MTA LGTRail&Storage Yard, Baltimore city, MD
Over: MIDDLE BRANCH
0.6 MI. E. OF RUSSELL ST., Baltimore city, MD
Over: GRAHAM CREEK
0.35 MI N OF MD 262, Calvert, MD
Over: TRIBUTARY TO TUCKAHOE CR
2.5 MILES SOUTH OF MD 404, Caroline, MD
Over: CSX TRANS.
0.7 MILE NORTH OF US 40, Cecil, MD
Over: MIDDLE CREEK
0.72 MI S OF MD 904G, Frederick, MD
Over: TRIB OF DEER CREEK
0.02 M E OF LONG CORNER R, Harford, MD
Over: MIDDLE PATUXENT RIVER
1.05 MILES SOUTH OF MD 32, Howard, MD
Over: ROBERT FULTON DRIVE
1.0 MI S OF MD RTE 175, Howard, MD
Over: PAINT BRANCH
0.87 MILE NORTH OF MD 650, Montgomery, MD
Over: PAINT BRANCH
0.87 MILE NORTH OF MD 650, Montgomery, MD
Over: OXON RUN
0.15 MI E OF WASH DC LINE, Prince George's, MD
Over: TONOLOWAY CREEK
0.69 MILE WEST OF IS 70, Washington, MD
Over: CSX TRANS.
0.18 MILE EAST OF MD 65, Washington, MD
Over: MECHANIC STREET
0.44 MI E OF US 48H, Allegany, MD
Over: SEVERN RUN
0.76 MI N OF MD 178A, Anne Arundel, MD
Showing 2,601-2,650 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 |