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: BEAVER RUN
1.02 MILES SW OF MD 140, Carroll, MD
Over: BENNETT CREEK
1.62 MILES N OF MD 355, Frederick, MD
Over: TRANS CONT PIPE LINE
0.35 MILE EAST OF US 40, Howard, MD
Over: STILL POND CREEK
0.01MI S BESSICKS CRNR RD, Kent, MD
Over: SLIGO CREEK
0.43 MILE NORTH OF MD 410, Montgomery, MD
Over: ROCK CREEK
0.13 MILE NORTH OF IS 495, Montgomery, MD
Over: BR OF SOUTHWEST BR
0.05 MILE NORTH OF MD 214, Prince George's, MD
Over: MD ROUTE 197 (WBL)
1.8 MILES NORTH OF MD ROU, Prince George's, MD
Over: POPLAR HILL CREEK
0.16 M W OF TOWER HILL RD, St. Mary's, MD
Over: JARBOESVILLE RUN
0.53 MILE NORTH OF MD 246, St. Mary's, MD
Over: POTOMAC RIVER, CSX TRANS
ON WEST VIRGINIA ST LINE, Washington, MD
Over: TYASKIN CREEK
0.3 MI E WETIPQUIN RD, Wicomico, MD
Over: JENNINGS RUN
0.03 MI S OF MD 36, Allegany, MD
Over: BOULTERS WAY
1.38 MI E OF MD 783, Anne Arundel, MD
Over: ROCK CREEK
0.68 MILE NORTH OF MD 607, Anne Arundel, MD
Over: REDHOUSE CREEK
0.65 MI E OF MD 7, Baltimore, MD
Over: GWYNNS FALLS
0.32 MILE NORTH OF IS 695, Baltimore, MD
Over: GWYNNS FALLS
0.1 MI N LIBERTY RD, Baltimore, MD
Over: TRIBUTARY TO SLADE RUN
0.56 MI ON LONGNECKER RD, Baltimore, MD
Over: HERRING RUN
0.2 MI E PERRING PKWY, Baltimore city, MD
Over: LIBERTY RESERVOIR
1.04 M W OF BALTO CO LINE, Carroll, MD
Over: Little Patuxent River
0.49 M W OF DOGWOOD DRIVE, Howard, MD
Over: PATUXENT RIVER
1.8 MILES NORTH OF MD 650, Montgomery, MD
Over: MD 200 (ICC)
0.75 MI E OF US 29, Montgomery, MD
Over: NORTHEAST BRANCH
0.29 MILE WEST OF MD 201, Prince George's, MD
Over: TRIBUTARY OF MARSH RUN
0.01 MI NORTH OF RT 63, Washington, MD
Over: BURNT MILL BRANCH
1.90 MILES N OF MD 346, Wicomico, MD
Over: GEORGES CREEK
1.2 MI N OF MD 657, Allegany, MD
Over: CSX TRANSPORTATION
0.08 MILE WEST OF US 40, Baltimore, MD
Over: JONES FALLS
0.1 MI N HILLSIDE RD, Baltimore, MD
Over: CSX RAILROAD
0.6 MI S REISTERSTOWN RD, Baltimore, MD
Over: RED RUN
0.64 MI E OF MD 940, Baltimore, MD
Over: CENTRE STREET
SB JFX OFF-RAMP OV CENTRE, Baltimore city, MD
Over: GWYNNS FALLS & FRANKLIN
0.6 MI N EDMONDSON AVE, Baltimore city, MD
Over: WESTERN RUN
INTER WITH SMITH AVE, Baltimore city, MD
Over: CSX
0.6 M. E. OF HANOVER ST, Baltimore city, MD
Over: CSX RR YARD & BERNARD DR
Milepost M51.0, Baltimore city, MD
Over: CHICONE CREEK
1 MI NE OF MD 331, Dorchester, MD
Over: LINGANORE CREEK
AT GLISSANS MILL RD INT, Frederick, MD
Over: AMTRAK
0.51 MILE EAST OF US 40, Harford, MD
Over: AMTRAK
0.51 MILE EAST OF US 40, Harford, MD
Over: CSX RR
ON ANNE ARUNDEL CO LINE, Howard, MD
Over: SASSAFRAS RIVER
ON CECIL COUNTY LINE, Kent, MD
Over: TRIB CABIN JOHN CREEK
1.1 MILES WEST OF MD 355, Montgomery, MD
Over: ANDOVER BRANCH
0.5 MI FROM MD RTE 291, Queen Anne's, MD
Over: NORFOLK SOUTHERN RR
0.40 MILE NORTH OF MD 364, Somerset, MD
Over: HAMILTON RUN
0.27 MILE EAST OF MD 64, Washington, MD
Over: TRIBUTARY TO GUNPOWDER F
0.60 MI E OF RAILROAD AVE, Baltimore, MD
Over: RED RUN
0.15 MI S OF I-795, Baltimore, MD
Over: HUNTING CREEK
1.2 MILES NORTH OF MD 331, Caroline, MD
Showing 3,001-3,050 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 |