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: 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: MURPHY RUN
0.05 MI E OF GROSS MIL RD, Carroll, MD
Over: CSXT RAILROAD
.08 MI W OF CUMBERLAND ST, Allegany, MD
Over: SULLIVAN BRANCH
2.3 MI NE OF FEDERALSBURG, Caroline, MD
Over: TRIBUTARY OF DOG CREEK
0.05 MI E OF MD RTE 67, Washington, MD
Over: ROCK CREEK
100 FT W OF BEACH DRIVE, Montgomery, MD
Over: SHANKS CREEK
SMITH ISLAND, Somerset, MD
Over: CSX RAILROAD
0.1 MILES N OF US 40, Harford, MD
Over: MILL RUN
0.02 MI S MILL RUN ROAD, Garrett, MD
Over: SULLIVAN BRANCH
1.3 MI SE OF AGNER, Caroline, MD
Over: LITTLE PATUXENT RIVER
.03 MI W OF YOUNGHEART, Howard, MD
Over: SHANKS CREEK
0.5 MI N OF RHODES POINT, Somerset, MD
Over: EAST BR PATAPSCO RIVER
0.55 MI W OF WESLEY ROAD, Carroll, MD
Over: CSX
HANOVER ST OVER CSX RR, Baltimore city, MD
Over: CSX
0.3 MI W OF MARYLAND AVE, Baltimore city, MD
Over: CARROLL CREEK
0.4 MI N. OF US 15 EXIT 7, Frederick, MD
Over: GWYNNS FALLS AND MTA MET
1.1 MI SW OF MD RTE 140, Baltimore, MD
Over: KOONTZ RUN
1 MILE N. of DOUGLAS HILL, Allegany, MD
Over: CSX
0.2 MI S OF I-95, Baltimore city, MD
Over: BIG TUSCARORA CREEK
AT SUNDAYS LANE INT, Frederick, MD
Over: HERRING RUN
ON RAMP WB NORTHERN PKWY, Baltimore city, MD
Over: FRIENDS CREEK
2.0 MILES W OF RIFFLE RD, Frederick, MD
Over: MILLS BRANCH
1 MI SE OF MD RTE 290, Kent, MD
Over: LYONS CREEK
1.9 MI EAST OF ROUTE 4, Anne Arundel, MD
Over: STONEY RUN
0.9 MI N OF NORTH AVE, Baltimore city, MD
Over: BONNIE BRANCH
AT BONNIE BRANCH RD, Howard, MD
Showing 5,501-5,527 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 |