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: AMTRAK
0.03 MILE SOUTH OF US 40, Harford, MD
Over: BENNETT CREEK
2.6 MILES SE OF MD 75, Montgomery, MD
Over: SLIGO CREEK
0.5 MI N OF JCT SR 410, Montgomery, MD
Over: CSX TRANS.
0.12 MILE NORTH OF MD 459, Prince George's, MD
Over: BALD HILL BRANCH
0.09 MI E CIPRIANO RD, Prince George's, MD
Over: LITTLE PAINT BRANCH
.5 MI W OF US RTE 1, Prince George's, MD
Over: CSX RAILROAD
0.66 MI W OF MD 197, Prince George's, MD
Over: CSX RAILROAD
0.66 MILES WEST OF MD 197, Prince George's, MD
Over: UNICORN BRANCH
0.92 MILE NORTH OF MD 544, Queen Anne's, MD
Over: ST MARYS RIVER
0.10 MILE NORTH OF MD 246, St. Mary's, MD
Over: BR OF CONOCOCHEAGUE CREE
0.09 MILE NORTH OF US 11, Washington, MD
Over: BURNT MILL BRANCH
0.73 MI W OF WORCESTER CO, Wicomico, MD
Over: TONY TANK LAKE
0.2 MI S OF KAY AVE, Wicomico, MD
Over: ROCK CREEK
0.2 MI S OF BEACH DRIVE, Montgomery, MD
Over: WILLS CREEK, CSX RR, MUN
3 MI. SW. OF US 220, Allegany, MD
Over: SAWMILL CREEK
0.06 MILE NORTH OF MD 270, Anne Arundel, MD
Over: WESTERN RUN
0.07 MI E OF MD 128, Baltimore, MD
Over: MIDDLE RIVER
0.3 MI S. OF MARTIN BLVD., Baltimore, MD
Over: TRIBUTARY TO REDHOUSE CR
1.0MI SW US1 AND I-695, Baltimore, MD
Over: CSX
MILEPOST 60.0, Baltimore city, MD
Over: CHOPTANK RIVER
0.29 MILE EAST OF MD 328, Caroline, MD
Over: LITTLE PIPE CREEK
0.04 M W OF ADAMS MILL RD, Carroll, MD
Over: LITTLE MORGAN RUN
1.73 MILES N OF MD 32, Carroll, MD
Over: BIG ELK CREEK
0.12 MILE EAST OF MD 281, Cecil, MD
Over: ROCKY FOUNTAIN RUN
0.03 MILE NORTH OF MD 880, Frederick, MD
Over: CSX TRANSPORTATION
1.0 MILE SOUTH OF MD 85, Frederick, MD
Over: FALLING BRANCH
0.7 MI NE OF RED BRIDGE R, Harford, MD
Over: LITTLE MONOCACY RIVER
1.86 MILES E OF FRED CO, Montgomery, MD
Over: RACE TRACK RD
0.37 MILE SOUTH OF MD 717, Prince George's, MD
Over: BACK BRANCH
1.0 MILE NORTH OF MD 4, Prince George's, MD
Over: RED LION BRANCH
0.09 MILE WEST OF MD 290, Queen Anne's, MD
Over: MANOKIN RIVER
0.05 MILE NORTH OF MD 363, Somerset, MD
Over: LICKING CREEK
1.25 MI N OF US RTE 40, Washington, MD
Over: MTA LIGHT RAIL
0.04 MI N OF MD 170, Anne Arundel, MD
Over: LEVEL 3 EXIT RAMP FROM H
BWI EMPLOYEE PARK LOT, Anne Arundel, MD
Over: MARYLAND MIDLAND RR
0.62 MILE NORTH OF MD 795, Baltimore, MD
Over: DEAD RUN
0.19 M N OF CROSBY ROAD, Baltimore, MD
Over: DEAD RUN
0.87 MI N OF IS 70, Baltimore, MD
Over: EAST BRANCH HERBERT RUN
0.02 MI W OF US 1, Baltimore, MD
Over: I-83
WB RAMP FROM N PKWY, Baltimore city, MD
Over: CABIN BRANCH
1.5 MI S PATAPSCO AVE, Baltimore city, MD
Over: SOUTH BR GUNPOWDER FALLS
0.44 MI, Carroll, MD
Over: CSX TRANS.
0.32 MILE NORTH OF US 40, Cecil, MD
Over: FAHRNEY BRANCH
0.43 MILE SOUTH OF MD 80, Frederick, MD
Over: ROCK RUN
0.01 MI E OF WILKINSON RD, Harford, MD
Over: CSXT, WMATA
0.09 MILE EAST OF US 29, Montgomery, MD
Over: GLEBE RUN
0.11 MILE SOUTH OF MD 4, St. Mary's, MD
Over: CHURCH CREEK
2.4 MILES SOUTH OF MD 584, St. Mary's, MD
Over: UNNAMED STREAM
0.22 MI SW OF IS 70+MD 63, Washington, MD
Over: NORFOLK SOUTHERN RR
2.19 MILES EAST OF MD 346, Worcester, MD
Showing 2,001-2,050 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 |