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: GUNPOWDER FALLS
1.92 M N OF MD 137, Baltimore, MD
Over: NORFOLK SOUTHERN RR
0.18 MILE SOUTH OF MD 151, Baltimore, MD
Over: CSX RAILROAD
0.09 MI N OF US 40, Baltimore, MD
Over: PRETTYBOY BRANCH
1.7 MI NE OF FORESTON RD, Baltimore city, MD
Over: B & O RR
0.25 MI S OF PULASKI HWY, Baltimore city, MD
Over: BEAR BRANCH
0.76 MILE EAST OF MD 97, Carroll, MD
Over: BRANCH OF STONE RUN
1.45 MILE NORTH OF MD 276, Cecil, MD
Over: PRINCIPIO CREEK
0.03 MI S OF LINTON R RD, Cecil, MD
Over: AMTRAK
0.32 MI S OF US 40, Cecil, MD
Over: BR OF POTOMAC RIVER
0.58 MI E OF ROCK HALL RD, Frederick, MD
Over: ROCK CREEK
0.01 M E OF ROCK CREEK DR, Frederick, MD
Over: TUSCARORA CREEK
0.9 MI. NORTH OF MD 26, Frederick, MD
Over: GLADE RUN
1.45 MILES S OF PA LINE, Garrett, MD
Over: SAND SPRING RD
0.66 MILE EAST OF W VA, Garrett, MD
Over: WEST BRANCH
1.03 MILES N OF MD 152, Harford, MD
Over: CSX TRANSPORTATION
ON ANNE ARUNDEL CO LINE, Howard, MD
Over: MIDDLE PATUXENT RIVER
1.3 MI N OF MD RTE 108, Howard, MD
Over: ROCK CREEK
1.5 MILES EAST OF MD 355, Montgomery, MD
Over: CABIN JOHN CREEK
0.1 MI S OF JCT SR MD 190, Montgomery, MD
Over: PAINT BRANCH
1.37 MILES N OF IS 495, Prince George's, MD
Over: FOLLY BRANCH
1.11 MILES WEST OF MD 193, Prince George's, MD
Over: BALD HILL BRANCH
0.22 MI NE OF MD 450, Prince George's, MD
Over: NORFOLK & WESTERN RR
0.75 MILE NORTH OF IS 70, Washington, MD
Over: SIDELING HILL CREEK
ON ALLEGANY CO LINE, Washington, MD
Over: LITTLE CONOCOCHEAGUE CRE
0.19 MI N OF IS 70, Washington, MD
Over: LITTLE ANTIETAM CREEK
0.45 MI W OF MD RTE 67, Washington, MD
Over: ROCKHOLD CREEK
0.94 MI W OF MD 258, Anne Arundel, MD
Over: AMTRAK, PATAPSCO RIVER
0.96 MI N OF MD 295, Anne Arundel, MD
Over: EDMONDSON AVENUE
0.48 MILE NORTH OF MD 144, Baltimore, MD
Over: WEST BRANCH HERBERT RUN
0.5 MI N SULPHUR SPRING R, Baltimore, MD
Over: B&O RR
Milepost M52.0, Baltimore city, MD
Over: PINEY CREEK
.7 M SE OF BULLFROG RD, Carroll, MD
Over: BEAVER RUN
0.23 MI WEST OF MD 91, Carroll, MD
Over: LONG BRANCH
0.17 MILE NORTH OF MD 285, Cecil, MD
Over: PLUM CREEK
4 MI NW CHESAPEAKE CITY, Cecil, MD
Over: BRANCH OF OCTORARO CREEK
0.04 MI E OF JOHNSON RD, Cecil, MD
Over: NANJEMOY CREEK
1.4 MILES WEST OF MD 425, Charles, MD
Over: ALLENS FRESH RUN
1.0 MILE EAST OF US 301, Charles, MD
Over: LITTLE CATOCTIN CREEK
1.31 MILES WEST OF MD 79, Frederick, MD
Over: US 15
0.49 MILE EAST OF IS 70, Frederick, MD
Over: CSX TRANS., LITTLE YOUGH
.26 MILE SOUTH OF US 219A, Garrett, MD
Over: BYNUM RUN
1.6 MILES E OF MD 924, Harford, MD
Over: JOPPATOWNE CANAL
0.05 MI S OF TOWNE CNT DR, Harford, MD
Over: PATUXENT RIVER
ON PRINCE GEORGES CO LINE, Howard, MD
Over: STANSFIELD RD
0.50 MI N OF PG CO, Howard, MD
Over: SEVEN LOCKS RD
0.59 MILE EAST OF MD 190, Montgomery, MD
Over: MILL CREEK
1.1 MI SOUTH OF MD 115, Montgomery, MD
Over: TRIBUTARY TO MUDDY BRANC
0.7 MILES NORTH OF MD 28, Montgomery, MD
Over: TRUCK STREET
0.16 MI NORTH OF MD 28, Montgomery, MD
Over: CSX TRANS.
0.08 MILE NORTH OF US 1, Prince George's, MD
Showing 2,651-2,700 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 |