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: BRANCH OF TUCKAHOE CREEK
0.6 M E OF MD 312, Caroline, MD
Over: BASIN RUN
0.19 MI S OF WAYNE ST, Cecil, MD
Over: MONOCACY RIVER
0.1 MI SOUTH OF GAS HOUSE, Frederick, MD
Over: GEORGES CREEK
1.70 MI N OF MD 935, Allegany, MD
Over: AMTRAK
1.12 MILE NORTH OF MD 702, Baltimore, MD
Over: CONE BRANCH
0.25 MI SOUTH OF MD 17, Frederick, MD
Over: OWENS CREEK
AT FRANKLINVILLE RD INT, Frederick, MD
Over: AMTRAK
2.20 MILES SOUTH OF US 40, Harford, MD
Over: CSX RR TRACKS
ANNE ARUNDEL COUNTY LINE, Howard, MD
Over: Shady Grove Road
4.86 MI W. OF MD 97, Montgomery, MD
Over: BR OF TUCKAHOE CREEK
0.12 M S OF MILL RIDGE RD, Talbot, MD
Over: SECOND MINE BRANCH
0.5 M NW WHITE HALL ROAD, Baltimore, MD
Over: SCOTTS LEVEL BRANCH
2.5 MI. S. OF IS 795, Baltimore, MD
Over: BIG ELK CREEK
2.14 MI W OF DELAWARE, Cecil, MD
Over: BR OF POTOMAC RIVER
1.62 MI S. OF MD 344, Charles, MD
Over: TRIB / LITTLE DEER CREEK
1.5 MILES NE OF MD 23, Harford, MD
Over: UNNAMED TRIB TO SENECA C
1.0 Mile North of MD 124, Montgomery, MD
Over: C&O CANAL
0.1 miles from North Bran, Allegany, MD
Over: MAGOTHY BRANCH
1.5 MI W OF MD 2, Anne Arundel, MD
Over: NORTH RIVER
200 FT. FROM MD 450, Anne Arundel, MD
Over: PINEY RUN
0.5 MI S OF HANOVER ROAD, Anne Arundel, MD
Over: TRIBUTARY TO WESTERN RUN
0.4 MI S OF QUAKER BOTTOM, Baltimore, MD
Over: TRIBUTARY TO GUNPOWDER F
0.4 MI S OF MONKTON ROAD, Baltimore, MD
Over: I-695 STEMMERS RUN
I695 IS95 Interchange, Baltimore, MD
Over: HERRING RUN
Milepost M13.72, Baltimore city, MD
Over: MASON'S BRANCH
ON QUEEN ANNES CO LINE, Caroline, MD
Over: TRIB TO EAST BRANCH
1.21 M N OF MD 482, Carroll, MD
Over: BIG PIPE CREEK
0.41 MILES SOUTH OF MD 97, Carroll, MD
Over: BASIN RUN
0.52 MI N OF RUSSELL RD, Cecil, MD
Over: STONY RUN
0.55 MI W OF MD 274, Cecil, MD
Over: BASIN RUN
0.5 MI N OF DR. JACK RD., Cecil, MD
Over: JANE CARRS RUN
0.7 MILES SW OF MD 136, Harford, MD
Over: BUCKHORN RUN
AT INTERSECTION OF MD 182, Montgomery, MD
Over: FULL MILL BRANCH
0.42 M S/WHITES LNDNG RD, Prince George's, MD
Over: STREAM
100 FT N. OF 54TH PLACE, Prince George's, MD
Over: TRIB. OF LANDIS SPRING
JCT. LONDONTOWNE DR, Washington, MD
Over: ADKINS MILL POND
0.20 MI N OF MD 350, Wicomico, MD
Over: NORTH BRANCH
0.23 MI N OF MD 36, Allegany, MD
Over: TRIBUTARY TO NORRIS RUN
0.35 MI E OF NICODEMUS RD, Baltimore, MD
Over: BLACK BRANCH
1.3 MI. S. OF MD 214, Prince George's, MD
Over: MTA, CSX RAILROAD
0.4 MI W OF MD RTE 140, Baltimore, MD
Over: I95/I695 INTERCHANGE
I-95/I-695 Interchange, Baltimore, MD
Over: MTA AND JONES FALLS
1.5 MI S NORTHERN PKWY, Baltimore city, MD
Over: GILBERT CREEK
1.06 MILES WEST OF MD 5, Charles, MD
Over: FISHING CREEK
0.25 M E OLD FREDERICK RD, Frederick, MD
Over: CSX TRANSPORTATION
0.45 MI N OF MD 410, Montgomery, MD
Over: BROAD RUN TRIBUTARY
0.3 MI E OF WASCHE ROAD, Montgomery, MD
Over: Gum Springs & Paint Bran
1.40 Mi East of MD650, Montgomery, MD
Over: NASSAWANGO CREEK
2.05 MI SW OF MD 12, Worcester, MD
Over: LITTLE FALLS
1.2 MI N MIDDLETOWN RD, Baltimore, MD
Showing 4,251-4,300 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 |