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 PISCATAWAY CREEK
0.11 MI N OF WINDBROOK DR, Prince George's, MD
Over: MD 144
0.57 MILE WEST OF US 220, Allegany, MD
Over: BOULTERS WAY
0.07 MILE WEST OF MD 2, Anne Arundel, MD
Over: BLACKROCK RUN
1.46 MILE SOUTH OF MD 137, Baltimore, MD
Over: BUSH CABIN RUN
1.4 MI N OF MT CARMEL RD, Baltimore, MD
Over: B&O MUSEUM RR
MONROE ST & MT CLARE MANS, Baltimore city, MD
Over: MTA LIGHT RAIL AND STORA
I-95 / I-395 INTERCHANGE, Baltimore city, MD
Over: PINEY CREEK
0.60 MI N OF MD 140, Carroll, MD
Over: OCTORARO CREEK
.54 MILE NORTH OF MD 591A, Cecil, MD
Over: LITTLE ELK CREEK
0.55 MI NE OF MD 545, Cecil, MD
Over: AMTRAK RR
Milepost M109.2, Cecil, MD
Over: MONOCACY RIVER
1.32 MILE SOUTH OF MD 85, Frederick, MD
Over: LITTLE PATUXENT RIVER
0.27 MILE NORTH OF US 29, Howard, MD
Over: PLUMTREE BRANCH
0.5 MI W OF ST JOHNS LANE, Howard, MD
Over: CSX TRANS.
0.10 MILE NORTH OF MD 547, Montgomery, MD
Over: CSXT & COLLINGTON BRANCH
0.47 MILE WEST OF MD 197, Prince George's, MD
Over: US 50PA
0.52 MILE WEST OF IS 95, Prince George's, MD
Over: JOHNSON CREEK
0.35 MILES EAST OF MD 667, Somerset, MD
Over: LITTLE ANTIETAM CREEK
0.56 MILE NORTH OF MD 34, Washington, MD
Over: ANTIETAM CREEK
0.66 MILE WEST OF MD 62, Washington, MD
Over: NORFOLK SOUTHERN RR
1.0 MILE NORTH OF US 50BU, Wicomico, MD
Over: CORKERS CREEK
1.80 MILES S OF US 113BU, Worcester, MD
Over: UNNAMED STREAM
0.21 MI N OF US 40 ALT, Allegany, MD
Over: WHITEMARSH RUN
0.67 MILE WEST OF MD 43, Baltimore, MD
Over: BUFFALO CREEK
2.80 MI S OF MD 137, Baltimore, MD
Over: HAYSTACK BRANCH
0.6 MI W OF HARFORD RD, Baltimore, MD
Over: GWYNNS FALLS
0.5 MI W MONROE ST, Baltimore city, MD
Over: FAULKNER BRANCH
0.8 MILES NORTH OF MD 318, Caroline, MD
Over: BIG PIPE CREEK
0.12 MI N OF STUDY RD, Carroll, MD
Over: STONY RUN
0.97 MI S OF THEODORE RD, Cecil, MD
Over: BALLENGER CREEK
1.3 MILES SOUTH OF IS 270, Frederick, MD
Over: WILLIAMSBURG RUN
0.9 MI S OF BOWIE MILL RD, Montgomery, MD
Over: WESTERN BRANCH
0.12 MILE S OF MD 976C, Prince George's, MD
Over: FOLLY BRANCH
0.29 MI N OF MD 450, Prince George's, MD
Over: CAREY BRANCH
0.10 MI W OF MD 210, Prince George's, MD
Over: SUITLAND ROAD
1.6 MILES WEST OF FORESTV, Prince George's, MD
Over: BEAVER CREEK
0.67 MILE WEST OF MD 66, Washington, MD
Over: ASHTON RD
0.76 MILE EAST OF MD 68, Washington, MD
Over: LITTLE CONOCOCHEAGUE CRK
1.59 MI N OF US RTE 40, Washington, MD
Over: BARREN CREEK
0.26 MILE EAST OF MD 313, Wicomico, MD
Over: NORTH BRANCH
0.04 MILE SOUTH OF MD 47, Allegany, MD
Over: GEORGES CREEK
0.03 MI W OF MD 937, Allegany, MD
Over: CSX TRANS & GWYNNS FALLS
0.08 MILE SOUTH OF MD 140, Baltimore, MD
Over: BREAD AND CHEESE CREEK
0.31 MI S. OF MD 208, Baltimore, MD
Over: MTA LIGHT RAIL YARD
STA. 150-158, Baltimore city, MD
Over: GUSRYAN ST
500 FT W OF DUNDALK AVE, Baltimore city, MD
Over: EAST BRANCH PATAPSCO RIV
0.15 MI E OF HOUCK RD, Carroll, MD
Over: MILL RUN
1 MI SE RIPLEY ROAD, Charles, MD
Over: BIG BRANCH
2.64 MILES NORTH OF MD 24, Harford, MD
Over: EAST BRANCH/WINTERS RUN
0.3 MILES NE OF MD 23, Harford, MD
Showing 2,701-2,750 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 |