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: RED LION BRANCH
0.4 MI NW OF MD 290, Queen Anne's, MD
Over: FISHERMAN CREEK
0.31 MILE NORTH OF MD 584, St. Mary's, MD
Over: BROOKS RUN
1.71 MILES S OF MD 235, St. Mary's, MD
Over: TRIB TO POTTS MILL CREEK
1.26 MILES E OF MD 662B, Talbot, MD
Over: LANDIS SPRING BRANCH
0.61 MILE EAST OF IS 70, Washington, MD
Over: MARSH RUN
2.87 MILES WEST OF MD 62, Washington, MD
Over: LITTLE PATUXENT RIVER
0.43 MI W OF MD 3, Anne Arundel, MD
Over: HONEYGO RUN
0.07 MI S OF EBENEZER RD, Baltimore, MD
Over: LITTLE GUNPOWDER FALLS
ON HARFORD CO LINE, Baltimore, MD
Over: AMTRAK & BACK RIVER
0.75 MILE SOUTH OF MD 150, Baltimore, MD
Over: OREGON BRANCH
0.3 MI S OF SHAWAN ROAD, Baltimore, MD
Over: EAST BRANCH HERBERT RUN
INTER SELMA & SUL SPRNG, Baltimore, MD
Over: TRIBUTARY TO STEMMERS RU
0.2 MI E OF BELAIR RD, Baltimore, MD
Over: AMTRAK
AT JCT WITH HILTON ST., Baltimore city, MD
Over: BYNUM RUN
0.17 MILE SOUTH OF MD 136, Harford, MD
Over: SWAN CREEK
0.33 MILE SOUTH OF US 40, Harford, MD
Over: DORSEY RUN
0.04 MILE S OF MD 958P, Howard, MD
Over: MIDDLE PATUXENT RIVER
0.89 MILE NORTH OF US 29, Howard, MD
Over: TRIBUTARY OF PATAPSCO RI
PATAPSCO VALLEY ST PARK, Howard, MD
Over: GREAT SENECA CREEK
0.5 MILES NORTH OF MD 124, Montgomery, MD
Over: WESTERN BRANCH
0.48 MILE WEST OD MD 193, Prince George's, MD
Over: WESTERN BRANCH
0.12 MILE S OF MD 976C, Prince George's, MD
Over: AMTRAK, WMATA, BEAVER CR
0.17 MILE EAST OF US 50, Prince George's, MD
Over: TRIBUTARY TO SOUTHWEST
0.37 MI SOUTH OF MD 214, Prince George's, MD
Over: LOTTSFORD BRANCH
2.23 MI SOUTH OF MD 704, Prince George's, MD
Over: FEDERAL SPRING BRANCH
1.1 MI EAST OF OSBORNE RD, Prince George's, MD
Over: TRIBUTARY TO PISCATAWAY
0.2 MI WEST OF MD 5, Prince George's, MD
Over: BR OF RED LION BRANCH
0.13 MILE WEST OF MD 313, Queen Anne's, MD
Over: BIG ANNEMESSEX RIVER
2.59 MILES S OF MD 361, Somerset, MD
Over: WAGRAM CREEK
0.56 M N OF VA STATE LINE, Worcester, MD
Over: EVITTS CREEK
1.51 MILES SOUTH OF IS 68, Allegany, MD
Over: GALLOWAY CREEK
0.76 MILE SOUTH OF MD 408, Anne Arundel, MD
Over: BRANCH OF HERRING BAY
2.44 MILE EAST OF MD 2, Anne Arundel, MD
Over: LITTLE PATUXENT RIVER
1.9 MI S OF WAUGH CH RD, Anne Arundel, MD
Over: TOWSON RUN
0.05 M N/TOWSONTOWN BLVD, Baltimore, MD
Over: FALLS RUN
0.28 MI W OF W CHAPEL RD, Baltimore, MD
Over: OWINGS MILLS BOULEVARD
0.4 MI SW OF IS 795, Baltimore, MD
Over: TRIBUTARY TO GUNPOWDER F
0.25 NE OF NORTH END MD41, Baltimore, MD
Over: MILL CREEK
0.01 MILE NORTH OF MD 617, Caroline, MD
Over: WATTS CREEK
0.25 MILE WEST OF MD 16, Caroline, MD
Over: GUNPOWDER FALLS
0.14 MI N OF ROLLER ROAD, Carroll, MD
Over: TRIB TO HAWBOTTOM BRANCH
0.29 MI E OF HOLLOW ROAD, Frederick, MD
Over: TUSCARORA CREEK
1.23 MI W OF NEW DESIGN R, Frederick, MD
Over: WILSON RUN
0.025 M N OF E GREEN ST, Garrett, MD
Over: SAVAGE RIVER
0.9 MI NW OF MD 135, Garrett, MD
Over: DEER CREEK
2.17 MILES S OF MD 165, Harford, MD
Over: CRANBERRY RUN
0.2 MILES N OF MD 159, Harford, MD
Over: ROMNEY CREEK
80 YDS W OF OLD BALTIMORE, Harford, MD
Over: BRANCH OF DORSEY RUN
1.03 MILES S OF MD 958P, Howard, MD
Over: CABIN BRANCH
1.03 MILES N OF MONT CO, Howard, MD
Showing 2,101-2,150 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 |