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: NASSAWANGO CREEK
1.74 MI SE OF WO, Worcester, MD
Over: BRANCH OF WHITEMARSH RUN
1.61 MILE EAST OF IS 695, Baltimore, MD
Over: COLGATE CREEK
0.04 MI S BECKLEY ST, Baltimore city, MD
Over: OSTEND ST/LOTS G&H
Milepost 1.1, Baltimore city, MD
Over: MARYLAND MIDLAND RR
.14 MILE SOUTH OF MD 879E, Carroll, MD
Over: ALLOWAY CREEK
.3 MI N OF PINEY CREEK RD, Carroll, MD
Over: GUNPOWDER FALLS
0.03 MI E OF KERN RD, Carroll, MD
Over: DEER CREEK
2.08 MILES S OF MD 136, Harford, MD
Over: DEER CREEK
1.98 MILES WEST OF MD 136, Harford, MD
Over: KELLOGG BRANCH
2.86 MILES S OF MD 165, Harford, MD
Over: LITTLE PATUXENT RIVER
0.55 MILE WEST OF US 29, Howard, MD
Over: LITTLE PATUXENT RIVER
0.55 MILE WEST OF US 29, Howard, MD
Over: TRIBUTARY TO MIDDLE PATU
1.2 MI S OF MD RTE 144, Howard, MD
Over: NORTHWEST BRANCH
1.6 MILES WEST OF MD 650, Montgomery, MD
Over: NASSAWANGO CREEK
0.5 MI E FOREST GROVE RD, Wicomico, MD
Over: TRIBUTARY TO WHITE MARSH
.01 M E OF PERRY HALL BLV, Baltimore, MD
Over: P AND B RAILROAD
0.3 MI W OF MD 151, Baltimore, MD
Over: ELBOW BRANCH
1.5 MI E OF MD 161, Baltimore city, MD
Over: MEADOW BRANCH
0.17 MILE SOUTH OF MD 832, Carroll, MD
Over: NORTHEAST CREEK
0.1 MILE NORTH OF MD 7C, Cecil, MD
Over: FRENCHTOWN RD
0.8 MI N OF SUSQUEHANNA R, Cecil, MD
Over: OWENS CREEK
0.6 MILE NORTH OF MD 550, Frederick, MD
Over: POPLAR LICK RUN
1.43 MI S WESTERN PORT RD, Garrett, MD
Over: AMTRAK
0.12 MILE NORTH OF US 40, Harford, MD
Over: BURROUGHS RUN
1.49 MILES W OF MD 234, St. Mary's, MD
Over: RICE ROAD
1.71 MILES EAST OF MD 903, Washington, MD
Over: MT WILSON LANE
0.62 MILE SOUTH OF MD 37, Baltimore, MD
Over: MT WILSON LANE
0.62 MILE SOUTH OF MD 37, Baltimore, MD
Over: GUNPOWDER FALLS
2.3 MI. S. MD-PA ST LINE, Baltimore, MD
Over: MIDDLE CREEK
1.64 MILES N0RTH OF US 40, Frederick, MD
Over: MILL RUN
.25 MILES SOUTH OF US40, Garrett, MD
Over: SOUTH STIRRUP RUN
0.7 MILES E OF MD 24, Harford, MD
Over: PATUXENT RIVER
1 MILE NORTH OF GUE ROAD, Montgomery, MD
Over: CABIN JOHN CREEK
1.1 MILES WEST MD 355, Montgomery, MD
Over: TIMOTHY BRANCH
.26 MI W OF US 301 / MD 5, Prince George's, MD
Over: TUCKAHOE CREEK
1 MI SE. OF MD 481, Queen Anne's, MD
Over: TIDAL GUT TO BIG POND
.4 MI S OF SHOREHAM BEACH, Anne Arundel, MD
Over: GWYNNS FALLS
0.3 MI WEST CLIFTON AVE, Baltimore city, MD
Over: AMTRAK
0.25 MI W OF MONROE ST, Baltimore city, MD
Over: CSX RAILROAD
0.1 MI W OF BRUNSWICK ST, Baltimore city, MD
Over: BEAR BRANCH
1.46 MILE SOUTH OF MD 84, Carroll, MD
Over: BR OF BENNETT CREEK
0.12 MI S OF THURSTON RD, Frederick, MD
Over: DEER CREEK
1.89 MILES SOUTH OF MD 24, Harford, MD
Over: ROCK CREEK NORTH BRANCH
1.8 MI NE OF MD 115, Montgomery, MD
Over: PAINT BRANCH
0.5 MI W OLD COLUMBIA PK, Montgomery, MD
Over: LITTLE PAINT BRANCH
0.43 MILE WEST OF US I, Prince George's, MD
Over: COLLINGTON BRANCH
1.34 MILES NW OF US 301, Prince George's, MD
Over: LITTLE CONOCOCHEAGUE CRE
2.23 MI SW OF MD RTE 56, Washington, MD
Over: GODDARD ARMSTRONG PK'WY
0.837 MILE WEST OF US 13, Wicomico, MD
Over: JONES FALLS
INTER. WITH FALLS ROAD, Baltimore city, MD
Showing 3,201-3,250 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 |