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: SOUTHWEST BRANCH
0.18 MI W OF RITCHIE ROAD, Prince George's, MD
Over: CHARLES BRANCH
1.1 MILES SOUTH OF US 301, Prince George's, MD
Over: MANOKIN RIVER
0.05 MILE NORTH OF MD 363, Somerset, MD
Over: REHOBETH BRANCH
4.96 MILES WEST OF US 13, Somerset, MD
Over: ANTIETAM CREEK
0.57 MILE WEST OF US 40AL, Washington, MD
Over: ANTIETAM CREEK
0.57 MILE WEST OF US 40AL, Washington, MD
Over: ANTIETAM CREEK
AT EASTERN BOULEVARD, Washington, MD
Over: NORFOLK SOUTHERN RAILROA
0.68 MI N OF VIRGINIA AVE, Washington, MD
Over: LIBERTYTOWN BR
4.01 M E OF WICOMICO CO, Worcester, MD
Over: CHESTER RIVER
ON KENT CO LINE, Queen Anne's, MD
Over: TRIB TO STONY RUN
WEST OF 195, Anne Arundel, MD
Over: FOURTH MINE BRANCH
0.14 M N OF BR NO 0304600, Baltimore, MD
Over: BEAVERDAM RUN, BAISMAN R
0.3 MI SE OF IVY HILL RD, Baltimore, MD
Over: GUILFORD AVE
0.4 MI N OF MADISON ST, Baltimore city, MD
Over: CONRAIL YARDS
Milepost M56.7, Baltimore city, MD
Over: HUNTING CREEK
.086 MILE NORTH OF MD 263, Calvert, MD
Over: LITTLE PIPE CREEK
.03 MI E OF ROOPS MILL RD, Carroll, MD
Over: ZEKIAH SWAMP
0.44 MILE SOUTH OF MD 488, Charles, MD
Over: ZEKIAH SWAMP
0.54 MILE SOUTH OF MD 488, Charles, MD
Over: SLAUGHTER CREEK
AT TAYLOR'S ISLAND, Dorchester, MD
Over: TUSCARORA CREEK
1.14 MI N OF MD RTE 28, Frederick, MD
Over: CHERRY CREEK
0.5 MI N OF MANSFIELD RD, Garrett, MD
Over: OTTER POINT CREEK
0.10 MILE EAST OF MD 24, Harford, MD
Over: CSX TRANS.
0.3 MILE SOUTH OF MD 7, Harford, MD
Over: TRIB. TO OTTER POINT CRE
0.13 MILE NORTH OF MD 755, Harford, MD
Over: DEEP RUN
0.89 MILE SOUTH OF US 1, Howard, MD
Over: PINEY BRANCH
0.6 MI N OF GLEN RD., Montgomery, MD
Over: CSXT RAILROAD
0.9 MILES WEST OF MD 28, Montgomery, MD
Over: GREAT SENECA CREEK
1.8 MILES EAST OF MD 118, Montgomery, MD
Over: MD ROUTE 197 (WBL)
1.9 MILES NORTH OF MD ROU, Prince George's, MD
Over: PASSERDYKE CREEK
ON WICOMICO CO LINE, Somerset, MD
Over: LORETTO BRANCH
0.6 MILE EAST OF US 13, Somerset, MD
Over: GOOSE CREEK
1.2 MI SE OF RUMBLEY, Somerset, MD
Over: ANTIETAM CREEK
0.42 M E OF KENLY AVENUE, Washington, MD
Over: CONOCOCHEAGUE CREEK
2.77 MILES EAST OF MD 57, Washington, MD
Over: BEAVER CREEK
0.5 MI W OF MD 66,IS 70IN, Washington, MD
Over: NASSAWANGO CREEK
4.53 MILES WEST OF MD 354, Wicomico, MD
Over: WILLS CREEK
0.03 MI S OF N MECHANC ST, Allegany, MD
Over: TRIBUTARY TO WEEMS CREEK
80 FT N OF JENNIFER ROAD, Anne Arundel, MD
Over: TRIBUTARY TO NORTH BRANC
ON CARROLL COUNTY LINE, Baltimore, MD
Over: FRANKFURST AVE
Milepost M8.0, Baltimore city, MD
Over: HUNTING CREEK
0.04 MILE EAST OF MD 2, Calvert, MD
Over: LYONS CREEK
ON ANNE ARUNDEL CO LINE, Calvert, MD
Over: BIRCH DAM CREEK
1.54 MILES SOUTH OF MD 16, Dorchester, MD
Over: LITTLE CATOCTIN CREEK
0.03 MI N OF HARMONY RD, Frederick, MD
Over: LINGANORE CREEK
0.87 MI N OF MD 144, Frederick, MD
Over: TRIB. OF LINGANORE CREEK
AT WOODVILLE RD INT, Frederick, MD
Over: YOUGHIOGHENY RIVER
0.1 M SE INT UNDERWOOD RD, Garrett, MD
Over: MEADOW MT RUN
0.8 MI E INT GLENDALE RD, Garrett, MD
Over: AMTRAK, TRIB TO SWAN CR
0.06 MILE EAST OF US 40, Harford, MD
Showing 2,401-2,450 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 |