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: DOCK ROAD
0.2 MI S OF FSK BR W ABUT, Baltimore city, MD
Over: WATTS CREEK
0.25 MILE WEST OF MD 16, Caroline, MD
Over: LITTLE NORTHEAST CREEK
Milepost M101.2, Cecil, MD
Over: CSX TRANSPORTATION
0.25 mi E MD RTE 925, Charles, MD
Over: HIGH BRIDGE BRANCH
1.4 MILES E OF US 1, Harford, MD
Over: BYNUM RUN
Milepost M79.1, Harford, MD
Over: CABIN JOHN CREEK
0.11 MILE NORTH OF GV 6, Montgomery, MD
Over: KENSINGTON PKWY
0.19 MI E OF MD 185, Montgomery, MD
Over: AMTRAK, WMATA
0.08 MILE SOUTH OF US 50, Prince George's, MD
Over: HORSEPEN BRANCH
1.03 MILES S OF MD 197, Prince George's, MD
Over: NORTHEAST BRANCH
0.3 MI W OF MD RTE 201, Prince George's, MD
Over: MECHANIC STREET
0.44 MI E OF US 48H, Allegany, MD
Over: WHITEMARSH BRANCH
0.04 MI N OF MD 147, Baltimore, MD
Over: PINEY CREEK
0.5 MI N OF BELFAST ROAD, Baltimore, MD
Over: MTA LIGHT RAIL
50 FT W BELLONA AVE, Baltimore, MD
Over: PINEY RUN
0.8 MI SW OF BLACKROCK RD, Baltimore, MD
Over: STONEY RUN
0.5 MI N HOWARD & 29TH ST, Baltimore city, MD
Over: GRAMIES RUN
0.05 MI N OF GALLAHER RD, Cecil, MD
Over: MONOCACY RIVER
1.3 MI W OF CARROLL CO, Frederick, MD
Over: YOUGHIOGHENY RIVER
0.2MI S OF FINGERBOARD RD, Garrett, MD
Over: CSX TRANS.
0.06 MILE WEST OF US 40, Harford, MD
Over: BYNUM RUN
MILEPOST M79.1, Harford, MD
Over: CSXT, WMATA, RAMP
0.19 MILE WEST OF MD 911, Montgomery, MD
Over: BR OF LITTLE BENNETT CRK
0.32 MILE SOUTH OF MD 109, Montgomery, MD
Over: CSXT RAILROAD
0.4 MI SW OF MD 192, Montgomery, MD
Over: TRIBUTARY OF LITTLE BENN
0.12 MI. E. OF JCT SR 355, Montgomery, MD
Over: WAUKIKI CREEK
1.36 MI W OF WIDGEON, Somerset, MD
Over: LANDIS SPRING BRANCH
0.20 MILE EAST OF MD 741, Washington, MD
Over: BEAVER CREEK
0.08 MILE WEST OF MD 66, Washington, MD
Over: BEAVER CREEK
1.5 MI SE OF ALT US RTE 4, Washington, MD
Over: FIFTEEN MILE CREEK
0.08 MI E OF US 40 SCN, Allegany, MD
Over: AMTRAK, STONY RUN
0.14 MI S OF IS 195, Anne Arundel, MD
Over: NORFOLK SOUTHERN RR
500' N. OF MD 695, Baltimore, MD
Over: SCOTTS LEVEL BRANCH
0.5 MI N OF MD RTE 26, Baltimore, MD
Over: B & O RR
0.25 MI S OF PULASKI HWY, Baltimore city, MD
Over: PINEY RUN
0.55 MI E OF ARRINGTON RD, Carroll, MD
Over: NORTHEAST CREEK
Milepost M100.3, Cecil, MD
Over: CSX TRANSPORTATION
ON ANNE ARUNDEL CO LINE, Howard, MD
Over: NORTHEAST BRANCH
0.45 MILE NORTH OF MD 450, Prince George's, MD
Over: WARRIOR RUN
0.16 MILE NORTH OF MD 636, Allegany, MD
Over: JACKSON RUN
0.05 MI E OF JACKSON ST, Allegany, MD
Over: AMTRAK
0.37 MILE NORTH OF MD 170, Anne Arundel, MD
Over: IS 795 RAMP '10'
0.62 MILE SOUTH OF MD 940, Baltimore, MD
Over: TRIBUTARY TO WHITE MARSH
.2 MI EAST OF US RTE 40, Baltimore, MD
Over: AMTRAK
AT FREDERICK AVE JCT, Baltimore city, MD
Over: DESOTO ROAD
Milepost M52.4, Baltimore city, MD
Over: VACANT LOT / WETLANDS
Milepost M56.4, Baltimore city, MD
Over: CHURCH CREEK
1.24 MILES WEST OF MD 7, Harford, MD
Over: MIDDLE PATUXENT RIVER
0.18 MILE NORTH OF IS 95I, Howard, MD
Over: RIVERSIDE DRIVE
0.7 MILES SOUTH OF I-495;, Montgomery, MD
Showing 2,801-2,850 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 |