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: THOMAS RUN
0.2 MILE E OF THOMAS R RD, Harford, MD
Over: BYNUM RUN
0.6 MILES S OF MD 543, Harford, MD
Over: OLD MONT. RD & DEEP RUN
0.62 MILE WEST OF MD 103, Howard, MD
Over: DORSEY STATION ACCESS RD
0.39 M W OF AA CO LINE, Howard, MD
Over: DORSEY STATION ACCESS RD
0.39 M W OF AA CO LINE, Howard, MD
Over: BOOZE CREEK
0.5 MILES SOUTH OF MD 191, Montgomery, MD
Over: Ramp NW
0.5 mi S Briggs Chaney Rd, Montgomery, MD
Over: BRANCH OF OCTORARO CREEK
0.89 MI E OF US RTE 222, Cecil, MD
Over: RAMP X
BWI AIRPORT, Anne Arundel, MD
Over: TRIBUTARY TO WHITE MARSH
1.0 MI E OF MD RT 1, Baltimore, MD
Over: STEMMERS RUN
I95/I695 INTERCHANGE, Baltimore, MD
Over: LITTLE NORTHEAST CREEK
0.02 MI E OF STEVENSON RD, Cecil, MD
Over: GALESTOWN MILLPOND
1.5 Mi. NE of JNC Rt 313, Dorchester, MD
Over: TRIB. OF BROAD RUN
0.4 MI W OF PICNIC WOODS, Frederick, MD
Over: OVERSHOT BRANCH
0.03 MILES N OF GUYTON RD, Harford, MD
Over: LITTLE BENNETT CREEK TRI
2.8 MILES NORTH OF MD 355, Montgomery, MD
Over: BRADDOCK RUN
0.27 MI W OF IS 68, Allegany, MD
Over: EVITTS CREEK
0.71 MILE NORTH OF I-68, Allegany, MD
Over: MATTAWOMAN CREEK
ON CHARLES COUNTY LINE, Charles, MD
Over: TRIB OF PETER PAN RUN
EAST OF ADDISON WOODS RD, Frederick, MD
Over: TALBOT BRANCH
0.25 MI E OF WOODVILLE RD, Frederick, MD
Over: MOUNTAIN BRANCH
1.7 MILES E OF MD 152, Harford, MD
Over: TRIB / DEER CREEK
0.4 MILES W OF MD 23, Harford, MD
Over: Good Hope Tributary
0.48 Mi East of MD650, Montgomery, MD
Over: Ramp SE
0.12 mi W of 29/200 I/C, Montgomery, MD
Over: DEEP RUN
0.38 MI E OF WESLEY ROAD, Carroll, MD
Over: AMTRAK
2.34 MILE NORTH OF MD 272, Cecil, MD
Over: US 15
0.49 MILE EAST OF IS 70, Frederick, MD
Over: MD 200 (ICC)
2.33 MI W OF MD 97, Montgomery, MD
Over: BEAVER DAM CREEK
0.15 MI W OF MD 295, Prince George's, MD
Over: TRIBUTARY OF WOLF DEN BR
1 MI S OF CEDARVILLE RD, Prince George's, MD
Over: LITTLE ANTIETAM CREEK
1.02 MI SE OF MD RTE 60, Washington, MD
Over: MARSH RUN
0.76 MI E OF MD RTE 60, Washington, MD
Over: C&O CANAL
0.2 miles from Little Ton, Washington, MD
Over: PAW PAW CREEK
0.19 MI SW OF MD 365, Worcester, MD
Over: WEST BRANCH OF CHRISTIAN
0.32 MI E OF APPLETON RD, Cecil, MD
Over: TOMS RUN
1.9 MILES WEST OF MD 68, Washington, MD
Over: GRAVE RUN
0.56 MI N OF FALLS RD, Baltimore, MD
Over: GEORGETOWN BRANCH TRAIL
0.52 MILE EAST OF MD 355, Montgomery, MD
Over: GEORGES CREEK
1.03 M S OF BR NO 0112700, Allegany, MD
Over: N BRANCH POTOMAC RIVER
ON WEST VIRGINIA LINE, Allegany, MD
Over: DOGWOOD RUN
2.74 MI. W. OF IS 695, Baltimore, MD
Over: MILL POND STREAM
1.02 MILES N OF MD 282, Cecil, MD
Over: TRIBUTARY TO BYNUM RUN
1.0 MILES E OF CEDAR LANE, Harford, MD
Over: TRIB / PLUMTREE RUN
0.3 MILES S OF W RIDING D, Harford, MD
Over: CSXT RAILROAD
0.5 MI W OF SEMINARY ROAD, Montgomery, MD
Over: UNNAMED TRIBUTARY
0.8 MI S OF RIVER ROAD, Montgomery, MD
Over: LITTLE SENECA CREEK
0.1 MI. E. OF MD 355, Montgomery, MD
Over: MD 200 (ICC) Ramp SB
0.10 Mi. West of US 29, Montgomery, MD
Over: COBB ROAD
IS 595,IS 95-495 INT, Prince George's, MD
Showing 4,751-4,800 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 |