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: TIBER RIVER
0.01 MI S MAIN STREET, Howard, MD
Over: NORTH BRANCH OF POTOMAC
0.3 MI S OF MD RTE 51, Allegany, MD
Over: DEER CREEK
0.8 MI E MAIN ST, Harford, MD
Over: LITTLE CATTAIL CREEK
0.3 MI N JENNINGS CHAPEL, Howard, MD
Over: BASIN RUN
0.24 MI W OF COLORA RD, Cecil, MD
Over: DOGWOOD RUN
200' SW OF HOLLIFIELD RD, Baltimore, MD
Over: ISRAEL CREEK
0.3 MI W OF MD RTE 67, Washington, MD
Over: CSX RAILROAD
0.1 MI SE OF OLD HANOVER, Baltimore, MD
Over: BUFFALO RUN
0.2 MI NE OF MD RTE 42, Garrett, MD
Over: BEAVERDAM CREEK
0.14 MI N OF MD 202, Prince George's, MD
Over: MAPLE RUN
5.61 MI. S. OF I-68, Allegany, MD
Over: BYNUM RUN
0.8 MILES W OF MD 136, Harford, MD
Over: POINT LOOKOUT CREEK
1 Mile South of SR 5, St. Mary's, MD
Over: TRIBUTARY TO HERRING RUN
0.12 MI E OF OAKLEIGH AVE, Baltimore, MD
Over: MARUMSCO CREEK
1.5 MI WEST OF MARUMSCO, Somerset, MD
Over: CARROLL CREEK
0.2 MI SOUTH OF US 15, Frederick, MD
Over: GUNPOWDER FALLS
2.3 MI E YORK RD, Baltimore city, MD
Over: DIVIDING CREEK
WOR-SOMER CO LINE, Worcester, MD
Over: DEADMAN RUN
0.7 MI N OF TUFTON AVE, Baltimore, MD
Over: SAMS CREEK
ON FREDERICK CO LINE, Carroll, MD
Over: TRANSQUAKING RIVER
0.1 MI W OF GRIF NECK RD, Dorchester, MD
Over: GAREY MILL POND BRANCH
2.5 MILES NORTH OF MD 317, Caroline, MD
Over: BEAVER RUN
AT HUGHES ROAD, Carroll, MD
Over: LITTLE MONOCACY RIVER
0.5 MI E OF MT EPHRAM RD, Montgomery, MD
Over: JOSEPH'S BRANCH
0.5 MI. EAST OF ROUTE 185, Montgomery, MD
Over: CAREY BRANCH
0.13 MI N OF HAMMOND ROAD, Worcester, MD
Over: C&O CANAL
Little Orleans Campground, Allegany, MD
Over: MARSHYHOPE CREEK
1.19 MILES SW OF DELAWARE, Caroline, MD
Over: BUFFALO RUN
0.37 MI NE OF MD RTE 42, Garrett, MD
Over: C&O CANAL
Harpers Ferry Road to Bac, Washington, MD
Over: MARYLAND MIDLAND RAILROA
1000 FEET SOUTH OF MD 77, Frederick, MD
Over: CLARA BARTON PARKWAY
1.3 MILES SOUTH OF I-495., Montgomery, MD
Over: LEEDS CREEK
6 MI NW OF EASTON, Talbot, MD
Over: LITTLE DEER CREEK
0.12 MI E OF LENTZ RD, Baltimore, MD
Over: WATTS BRANCH TRIBUTARY
0.1 MI S OF JCT SR 28, Montgomery, MD
Over: NORFOLK SOUTHERN RAILROA
0.64 MI E OF IS 81, Washington, MD
Over: NASSAWANGO CREEK
3 MI S OF MD RTE 350, Wicomico, MD
Over: C&O CANAL
2.0 miles west of Sharpsb, Washington, MD
Over: C&O CANAL
0.1 miles from Taylors La, Washington, MD
Over: HUNTING CREEK
0.2 MI SW OF MD 77, Frederick, MD
Over: GUNPOWDER FALLS
1.3 MI E YORK RD, Baltimore, MD
Over: SOUTHWEST BRANCH
1.48 MI SOUTH OF MD 214, Prince George's, MD
Over: WATTS CREEK
0.47 MI NE OF MD 404, Caroline, MD
Over: MILL RUN
1.2 M NE FRNDSVLLEADDISON, Garrett, MD
Over: LITTLE FALLS
1.0 MI W OF YORK RD, Baltimore, MD
Over: EAST BRANCH PATAPSCO RIV
0.59 MI E OF RIDGE ROAD, Carroll, MD
Over: GILBERT SWAMP RUN
2.05 MILES S OF MD 6, Charles, MD
Over: POTOMAC RIVER TRIBUTARY
1.2 MI N OF WHITES FERRY, Montgomery, MD
Over: GUNPOWDER FALLS
0.5 MI E OF YORK RD, Baltimore, MD
Over: TINKERS CREEK
1.91 MILES N OF MD 223, Prince George's, MD
Showing 5,301-5,350 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 |