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: SCOTTS LEVEL BRANCH
0.67 MI N OF MD 26, Baltimore, MD
Over: GRAVES RUN
0.6 MI N OF BECKLEYSVILLE, Baltimore, MD
Over: MD 25, FALLS RD
OFF RAMP OVER FALLS RD, Baltimore city, MD
Over: ON RAMP FROM FALLS ROAD
JFX OVER FALLS RD ON RAMP, Baltimore city, MD
Over: PATUXENT RIVER
1.2 MI W OF MD 94, Howard, MD
Over: BUCKLODGE BRANCH
3.12 MILES NORTH OF MD 28, Montgomery, MD
Over: GREAT SENECA CREEK
1.3 MILES NORTH OF MD 28, Montgomery, MD
Over: CSXT RAILROAD
0.5 MILES EAST OF MD 355, Montgomery, MD
Over: SLIGO CREEK
0.7 MI E OF JCT SR 97, Montgomery, MD
Over: ROCK CREEK
0.15 MI N OF JCT SR 547, Montgomery, MD
Over: TRACYS CREEK
0.11 MI SOUTH OF MD 258, Anne Arundel, MD
Over: I-83 BERM
NEAR COLDSPRING LANE, Baltimore city, MD
Over: SAINT LEONARD CREEK
0.3 MI N OF MD RTE 2/4, Calvert, MD
Over: SMALL STREAM
0.1 MI EAST OF MD RTE 85, Frederick, MD
Over: STANSFIELD RD
0.50 MI N OF PG CO, Howard, MD
Over: TUSCARORA CREEK
0.25 MI E OPOSSUMTOWN PIK, Frederick, MD
Over: CSX TRANSPORTATION
0.3 MI W OF ALLEGANY CO, Garrett, MD
Over: CABIN JOHN CREEK
1 MI E OF SEVEN LOCKS RD, Montgomery, MD
Over: CSX RAILROAD
0.1 MILES SOUTH OF MD ROU, Prince George's, MD
Over: CORSICA RIVER
0.2 MI N OF MD RTE 304, Queen Anne's, MD
Over: I-83 SB
ON RAMP TO SB I-83, Baltimore city, MD
Over: WESTERN RUN
0.1 MI N OF KELLY AVE, Baltimore city, MD
Over: AMTRAK
0.12 MILE WEST OF MD 7C, Cecil, MD
Over: WINTERS RUN
1.1 MILES W OF MD 24, Harford, MD
Over: BUTLER BRANCH
0.03 MI N OF ARMOR DRIVE, Prince George's, MD
Over: TUCKAHOE CREEK
0.9 MI E. OF MD 481, Queen Anne's, MD
Over: GREEN HILL CREEK
3.82 MILES WEST OF MD 349, Wicomico, MD
Over: MILL RUN
0.9 MILE SOUTH OF MD 830B, Allegany, MD
Over: PATAPSCO RIVER
ON BALT CO LINE, Anne Arundel, MD
Over: PATAPSCO RIVER
ON BALT CO LINE, Anne Arundel, MD
Over: GUNPOWDER FALLS
1.0 MI NW OF CARROLL ROAD, Baltimore, MD
Over: LITTLE CATOCTIN CREEK
0.2 M E OF HARMONY ROAD, Frederick, MD
Over: ISRAEL CREEK
0.5 MI E OF MD RTE 194, Frederick, MD
Over: ISRAEL CREEK
0.5 MI S OF WALKERSVILLE, Frederick, MD
Over: BR OF MIDDLE PATUXENT RI
1.5 MILES WEST OF US 32, Howard, MD
Over: RED LION BRANCH
0.3 MI. NE OF MD 290, Queen Anne's, MD
Over: NORTHWEST BRANCH
0.68 MILE EAST OF MD 212, Prince George's, MD
Over: FLINTSTONE CREEK
0.02 MI S OF MD 144, Allegany, MD
Over: STREAM
Milepost M7.8, Baltimore city, MD
Over: MARYLAND MIDLAND RR
0.26 MILE SOUTH OF MD 550, Frederick, MD
Over: YOUGHIOGHENY RIVER
0.5 M NW INT UNDERWOOD RD, Garrett, MD
Over: LITTLE PAINT BRANCH
0.23 MILE NORTH OF MD 212, Prince George's, MD
Over: WYE NARROWS
WYE ISLAND, Queen Anne's, MD
Over: NCR TRAIL
0.12 MI N OF FREDERICK RD, Baltimore, MD
Over: ROCK RUN
0.1 MI NW OF ROCK RUN RD, Harford, MD
Over: FOLLY BRANCH
1.11 MILES WEST OF MD 193, Prince George's, MD
Over: SLADE RUN
0.74 MI N OF MD 128, Baltimore, MD
Over: TURKEYFOOT RUN
0.04 MI N OF SMITH RD, Carroll, MD
Over: LITTLE PATUXENT RIVER
0.23 M S OF SHAKER DRIVE, Howard, MD
Over: MILL POND
0.01 MI W OF BRICES MILL, Kent, MD
Showing 3,351-3,400 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 |