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: BR OF NORWICH CREEK
1.1 MI W OF MD 309, Queen Anne's, MD
Over: GREENE BRANCH
0.3 MILE E OF COOPER ROAD, Baltimore, MD
Over: DEAD RUN
0.8 MI W HILTON PKWY, Baltimore city, MD
Over: WEST BRANCH PATAPSCO RIV
0.06 MI N OF TANNERY ROAD, Carroll, MD
Over: BR OF BIG ELK CREEK
0.15 MILE NORTH OF MD 316, Cecil, MD
Over: ISRAEL CREEK
0.3 MI EAST OF MD RTE 194, Frederick, MD
Over: HUNTING CREEK
AT LAYMAN ROAD INTERSECTN, Frederick, MD
Over: THOMAS RUN
0.1 MILES E OF KALMIA RD, Harford, MD
Over: TRIBUTARY TO CONOCOCHEAG
0.17 MI NORTH OF US RT 40, Washington, MD
Over: POCOMOKE RIVER
WOR-WIC CO LINE, Worcester, MD
Over: LAUREL RUN
0.35 MI W OF MD RTE 935, Allegany, MD
Over: BEAVER RUN
1.05 MI W OF MD 140, Carroll, MD
Over: MARUMSCO CREEK
1.2 MI W OF CORNSTACK RD, Somerset, MD
Over: WINDSOR CREEK
4.42 MILES WEST OF MD 352, Wicomico, MD
Over: WESTERN MD SCENIC RR
0.02 M N OF SONGBIRD LANE, Allegany, MD
Over: LAUREL RUN
0.41 MI W OF MD RTE 935, Allegany, MD
Over: LAUREL RUN
0.75 MI W OF MD RTE 935, Allegany, MD
Over: UNNAMED STREAM
0.04 MI N OF MD 36, Allegany, MD
Over: MURLEY BRANCH
0.02 MI SW OF WARM SPR RD, Allegany, MD
Over: LITTLE PATUXENT RIVER
BOUNDRY RD S OF GATE C, Anne Arundel, MD
Over: DORSEY RUN
0.47 MILE NORTH OF MD 295, Anne Arundel, MD
Over: PINEY RUN
0.3 MI E OF MD 295, Anne Arundel, MD
Over: TRIBUTARY TO STONY RUN
0.35 MI N of MD 100, Anne Arundel, MD
Over: UNNAMED TRIBUTARY TO SEV
1.58 MI S of MD174, Anne Arundel, MD
Over: TRACYS CREEK
1.12 MILES E OF MD 2, Anne Arundel, MD
Over: TOWSON RUN
0.04 M S OF TWSNTOWN BLVD, Baltimore, MD
Over: SCOTTS LEVEL BRANCH
0.38 MI S OF OLD COURT RD, Baltimore, MD
Over: OREGON BRANCH
0.28 MI E OF IS 83, Baltimore, MD
Over: BRANCH OF GWYNNS FALLS
2.5 MI. NW OF JCT. SR 140, Baltimore, MD
Over: TRIBUTARY TO GUNPOWDER F
0.3 MI W OF JCT SR 7, Baltimore, MD
Over: TRIB OF GWYNNS FALLS
MILFORD MILL METRO, Baltimore, MD
Over: GWYNNS FALLS, CSX
0.2 MI E HILTON PKWY, Baltimore city, MD
Over: POWDER MILL RUN
NORTHERN PKWY/POWDER MILL, Baltimore city, MD
Over: MOORES RUN
PULASKI HY OV MOORE'S RUN, Baltimore city, MD
Over: HARFORD RUN
LANCASTER ST AT CENTRAL A, Baltimore city, MD
Over: BRANCH OF PINEY CREEK
0.27 MILE SOUTH OF MD 140, Carroll, MD
Over: BRANCH OF PINEY CREEK
0.60 MILE SOUTH OF MD 140, Carroll, MD
Over: MILL CREEK
0.46 MI S OF US 40, Cecil, MD
Over: LITTLE BOHEMIA CREEK
3.1 MI E OF MD-213, Cecil, MD
Over: MILL CREEK
.3 MILES SE OF MD 7, Cecil, MD
Over: GILBERT SWAMP
2.94 MI W OF ST MARY'S CO, Charles, MD
Over: BR OF PORT TOBACCO CREEK
1.9 MILES WEST OF US 301, Charles, MD
Over: HOGHOLE RUN
2.95 MILES WEST OF US 301, Charles, MD
Over: MARBURY RUN
1.66 MILE SOUTH OF MD 425, Charles, MD
Over: TRIB TO JORDAN SWAMP
0.41 M N OF BR NO 0802300, Charles, MD
Over: JANE BERRY'S RUN
1.09 MILES NORTH OF MD 6, Charles, MD
Over: PINEY BRANCH
0.92 MILE WEST OF MD 5, Charles, MD
Over: BR OF PORT TOBACCO CREEK
0.23 M E OF BIBURY LANE, Charles, MD
Over: WHEATLEY RUN
3.49 M W OF ST MARY'S CO, Charles, MD
Over: ROCK CREEK
0.80 MI W OF FREDERICK, Frederick, MD
Showing 3,951-4,000 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 |