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: MURLEY BRANCH
0.19 MI W OF MURLEY BR RD, Allegany, MD
Over: GEORGES CREEK
0.03 MI S OF MD 36, Allegany, MD
Over: CSX TRANSPORTATION
0.71 MILE NORTH OF IS 695, Baltimore, MD
Over: GRAVEYARD CREEK
0.3 MI S OF HARMONY CH RD, Harford, MD
Over: NORTH BR OF ROCK CREEK
0.29 M E OF GRIST MILL DR, Montgomery, MD
Over: ROCK CREEK
0.31 M E OF AVERY ROAD, Montgomery, MD
Over: ROCK CREEK
0.31 M E OF AVERY ROAD, Montgomery, MD
Over: TRIBUTARY TO PINEY CREEK
0.6 MI W OF IS 83, Baltimore, MD
Over: MORGAN RUN
1.25 M W OF MD 32, Carroll, MD
Over: STONY RUN
0.37 MILE WEST OF MD 272, Cecil, MD
Over: TRIBUTARY TO MILL CREEK
1 MI. N PRINCIPIO FURNACE, Cecil, MD
Over: SWAN CREEK
0.54 MILE WEST OF MD 155, Harford, MD
Over: CO RTES 2035 & 2036
0.5 MILE NORTH OF MD 108, Howard, MD
Over: PINEY BRANCH
0.6 MI W OF GLEN MILL RD, Montgomery, MD
Over: MUDDY BRANCH
100 FT N OF QUERY MILL RD, Montgomery, MD
Over: NORTHWEST BRANCH
0.71 MILE NORTH OF US 1, Prince George's, MD
Over: BRIER DITCH
AT WESTBROOK DRIVE, Prince George's, MD
Over: TRIBUTARY OF WOLF DEN BR
1 MI S OF CEDARVILLE RD, Prince George's, MD
Over: FORCE MAIN
@ MD 695 & MD 702, Baltimore, MD
Over: HUNTING CREEK
ON DORCHESTER CO LINE, Caroline, MD
Over: TUCKAHOE CREEK
ON TALBOT CO LINE, Caroline, MD
Over: MORGAN RUN
1.7 M S OF MD 32, Carroll, MD
Over: NORTH BRANCH OF PATAPSCO
0.4 MI E OF SANDYMONT RD, Carroll, MD
Over: LITTLE ELK CREEK
CORP LMTS OF ELKTON, Cecil, MD
Over: AMTRAK
0.37 MI S OF MD 279, Cecil, MD
Over: CATOCTIN CREEK
0.60 MILE EAST OF MD 17, Frederick, MD
Over: CATOCTIN CREEK
0.60 MILE EAST OF MD 17, Frederick, MD
Over: CO RTES 2035 & 2036
0.5 MILE NORTH OF MD 108, Howard, MD
Over: CSXT RR & WMATA METRO
0.1 MILE EAST OF MD 355, Montgomery, MD
Over: INDIAN CREEK
0.74 MILE NORTH OF MD 201, Prince George's, MD
Over: MILL CREEK
0.76 MILE NORTH OF US 50, Talbot, MD
Over: WINCHESTER & WESTERN RR
0.06 MILE EAST OF MD 63, Washington, MD
Over: LITTLE ANTIETAM CREEK
0.18 MI N OF WELTY CH RD, Washington, MD
Over: FIFTEEN MILE CREEK
0.28 MI N OF US 40, Allegany, MD
Over: LITTLE FALLS
0.05 MI N OF FREDERICK RD, Baltimore, MD
Over: CSX TRANSPORTATION
0.82 MI N OF MCDONOUGH RD, Baltimore, MD
Over: TRIBUTARY TO HERRING RUN
0.01 MI W OF GOUCHER BLVD, Baltimore, MD
Over: STADIUM LOT & RR
Milepost M3.8, Baltimore city, MD
Over: BR OF MATTAWOMAN CREEK
1.88 MILES EAST OF MD 224, Charles, MD
Over: FISHING CREEK
0.18 M N OF HOOPER ISL RD, Dorchester, MD
Over: OWENS CREEK
0.5 M N OF EYLER ROAD, Frederick, MD
Over: BENNETT CREEK
0.37 MI S OF PARK MILLS R, Frederick, MD
Over: BYNUM RUN
0.99 MI W OF MD 543, Harford, MD
Over: CSX TRANS.
0.85 MILE NORTH OF MD 32, Howard, MD
Over: UNNAMED STREAM
0.4 MI E BROKENLAND PKWY, Howard, MD
Over: AMTRAK, WMATA
0.08 MILE SOUTH OF US 50, Prince George's, MD
Over: AMTRAK/WMATA/CSXT
125 FEET SOUTH OF US 50, Prince George's, MD
Over: LITTLE TONOLOWAY CREEK
0.19 MI S OF MD 144, Washington, MD
Over: BEAVER CREEK
1.02 MI W OF ALT US RT 40, Washington, MD
Over: NORFOLK SOUTHERN RAILROA
0.4 MI N OF RTE 40 W, Washington, MD
Showing 3,151-3,200 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 |