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: DOGWOOD RUN
0.1 MI E OF GILLESPIE RD, Cecil, MD
Over: PINEY BRANCH
2.5 MI E OF ST CHAR. PKWY, Charles, MD
Over: FISHING CREEK
AT UTICA RD INT, Frederick, MD
Over: CATTAIL BRANCH
0.4 MILE S OF MT HOREB RD, Harford, MD
Over: Good Hope Tributary
0.45 Mi East of MD650, Montgomery, MD
Over: HORSEPEN BRANCH
1.37 MILES S OF MD 197, Prince George's, MD
Over: LONG MARSH DITCH
1.12 MI EAST OF MD 313, Queen Anne's, MD
Over: CAMPBELL DITCH
1.7 MI N OF MD 350, Wicomico, MD
Over: INDIAN CREEK
0.09 MI W OF MD 201, Prince George's, MD
Over: BRANCH OF OCTORARO CREEK
0.45 MI N OF US RTE 1, Cecil, MD
Over: PINEY BRANCH
0.75 MI S. OF MD RTE 228, Charles, MD
Over: SOUTH FORK LINGANORE CRK
0.1 MI W OF EMERS BURR RD, Frederick, MD
Over: LONG BRANCH
AT MD 144, Frederick, MD
Over: LITTLE TUSCARORA CREEK
0.3 MI N OF POOLE JONES R, Frederick, MD
Over: DEEP RUN
0.5 MI S OF MD RTE 103, Howard, MD
Over: NORTHWEST BRANCH TRIBUTA
ENT. FROM GLENALLEN AVE., Montgomery, MD
Over: BIG BRANCH
0.4 MILES W OF FAWN GR RD, Harford, MD
Over: GEORGES CREEK
0.09 MILE SOUTH OF MD 935, Allegany, MD
Over: WEEMS CREEK
0.37 MI S OF IS 595, Anne Arundel, MD
Over: STONEY RUN
0.1 MI W OF MD RTE 170, Anne Arundel, MD
Over: GWYNNS FALLS
1.04 MILES E OF MD 140, Baltimore, MD
Over: MOORES BRANCH
0.65 MI S OF MD 133, Baltimore, MD
Over: FUTURE RAMP MB
I695 IS95 Interchange, Baltimore, MD
Over: LYONS CREEK
AA/CAL COUNTY LINE, Calvert, MD
Over: CSXT RAILROAD
1 MI S OF BARNESVILLE RD, Montgomery, MD
Over: MILL STREAM BRANCH
0.29 MILE NORTH OF MD 18C, Queen Anne's, MD
Over: ST JAMES RUN
1.338 MI W OF MD 65, Washington, MD
Over: NORTH BRANCH OF POTOMAC
ON WEST VIRGINIA, Allegany, MD
Over: CONE BRANCH
0.37 MI N OF BRDG 0306, Frederick, MD
Over: MD 151B AND TRADEPOINT R
0.1 MI S. OF MD 158, Baltimore, MD
Over: BRADDOCK RUN
0.20 MI W OF US 40 ALT, Allegany, MD
Over: DORSEY RUN
0.58 MI S OF HO CO LINE, Anne Arundel, MD
Over: DEER CREEK
0.59 MI E OF MASON-DIX RD, Baltimore, MD
Over: TRIBUTARY TO ROLAND RUN
0.4 MI S OF TIMONIUM RD, Baltimore, MD
Over: AMTRAK PROPERTY
AT CHARLES ST. OVER I-83, Baltimore city, MD
Over: NORTHEAST CREEK
0.49 MI E OF MD 272, Cecil, MD
Over: LITTLE ANTIETAM CREEK
0.6 MI NE OF MD RTE 64, Washington, MD
Over: SAND SPRING RUN
0.81 MI N OF IS 68, Allegany, MD
Over: OWL BRANCH
1MI S. OF I-83 EXIT33, Baltimore, MD
Over: GUSRYAN ST
500 FT S OF DUNDALK AVE, Baltimore city, MD
Over: TUCKERS BRANCH
1.02 M S OF BR NO 0306400, Carroll, MD
Over: CHERRY BRANCH
UNION BRIDGE ROAD, Carroll, MD
Over: CSX RAILROAD
0.1 MI S. OF RTE 219, Garrett, MD
Over: PAINT BRANCH
1.42 M E OF MONTGOMERY CO, Prince George's, MD
Over: GERMAN BRANCH
1.26 MILES E OF MD 481, Queen Anne's, MD
Over: MILES CREEK
8 MI SE OF EASTON, Talbot, MD
Over: MINOR TRIB OF MILL CREEK
0.5 MI E OF MD 222, Cecil, MD
Over: DICKENSON RUN
0.02 MI S OF NEW WINDSOR, Carroll, MD
Over: BENNETT CREEK
2.2 MI SW OF JCT SR 80, Montgomery, MD
Over: MOLL DYERS RUN
1.21 MILES WEST OF MD 5, St. Mary's, MD
Showing 4,801-4,850 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 |