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, SERVICE ROAD
0.4 MI W OF MD 170, Anne Arundel, MD
Over: AMTRAK, SERVICE ROAD
0.4 MI W OF MD 170, Anne Arundel, MD
Over: KELLY BRANCH
0.2 MI N. OF GIRDWOOD RD, Baltimore, MD
Over: I-695, I-95 INTERCHANGE
I-95/I-695 Interchange, Baltimore, MD
Over: CLARK RUN
0.8 MI NE MUDD RD, Charles, MD
Over: CHERRY GLADE RUN
0.05 MILES EAST OF US 219, Garrett, MD
Over: BROAD CREEK
0.5 MILES E OF MD 136, Harford, MD
Over: BYNUM RUN
0.2 MILES EAST OF MD 924, Harford, MD
Over: Shady Grove Road
4.86 MI W. OF MD 97, Montgomery, MD
Over: MD 200 Ramp NW
0.4 mi S Briggs Chaney Rd, Montgomery, MD
Over: PISCATAWAY CREEK
2.40 MILES SOUTH OF MD 4, Prince George's, MD
Over: BIG ANNEMESSEX RIVER
1.5 MI N OF KINGSTON ROAD, Somerset, MD
Over: BR OF LITTLE ANTIETAM CK
0.94 MILE EAST OF MD 845A, Washington, MD
Over: GEORGES RUN
1.3 MI E FALLS RD, Baltimore city, MD
Over: LITTLE ELK CREEK
0.46 MI E OF LI ELK CK RD, Cecil, MD
Over: SEVERN RUN
1.3 M E OF GAMBRILLS RD, Anne Arundel, MD
Over: PINEY RUN
0.3 MI E OF MD ROUTE 295, Anne Arundel, MD
Over: CABBAGE RUN
0.8 MI EAST OF MD 194, Frederick, MD
Over: CRANBERRY RUN
0.22 MILE SOUTH OF US 40, Harford, MD
Over: GRAYS RUN
0.1 MILES N OF MD 7, Harford, MD
Over: SNOWDEN RIVER PARKWAY
0.86 MILE WEST OF MD 103, Howard, MD
Over: SNOWDEN RIVER PARKWAY
0.86 MILE WEST OF MD 103, Howard, MD
Over: SUCKER BRANCH
0.4 MI N OF US RTE 40, Howard, MD
Over: GUNNERS BR,CSXT RR
.5 MI S OF MIDDLEBROOK RD, Montgomery, MD
Over: SLIGO CREEK
AT MANCHESTER AVENUE, Montgomery, MD
Over: TRIBUTARY TO BEAVERDAM C
0.02 MI E OF GRAMBY ST, Prince George's, MD
Over: STREAM
50 FT S. OF SPRING ST., Prince George's, MD
Over: CSX TRANS.
2.11 MILES SOUTH OF MD 85, Frederick, MD
Over: ST JAMES RUN
AT N/S RAILROAD, Washington, MD
Over: ELK LICK RUN
100 FEET SOUTH OF MD 144, Allegany, MD
Over: EVITTS CREEK
1.04 MILES S OF MD 144AN, Allegany, MD
Over: DEEP CREEK
1.1 MI SE OF EASTERN BLVD, Baltimore, MD
Over: MARC, CSX
0.15 MI. NW. OF WASH. BLV, Baltimore city, MD
Over: TRIBUTARY EAST OF BRANCH
.91 MI W - HOUCKSVILLE RD, Carroll, MD
Over: PATUXENT RIVER
ON ANNE ARUNDEL CO LINE, Prince George's, MD
Over: CSX TRANS.
0.18 MILE EAST OF MD 65, Washington, MD
Over: NORFOLK SOUTHERN RR
0.39 MILE NORTH OF MD 346, Wicomico, MD
Over: PEA VINE RUN
0.06 MI N OF ZEMBOWER RD, Allegany, MD
Over: GWYNNS FALLS
0.15 MI N OF IS 695, Baltimore, MD
Over: GARLAND LAKE
0.5 MILES NORTH OF MD 317, Caroline, MD
Over: CLIFFORD BRANCH
0.6 MI W OPPOSSUMTOWN PIK, Frederick, MD
Over: BEAR CREEK
0.1 MI W OF PUD MILLER RD, Garrett, MD
Over: LITTLE PATUXENT RIVER
0.125 MI S OF MD RTE 32, Howard, MD
Over: WATTS BRANCH
0.2 MI S OF HURLEY AVE, Montgomery, MD
Over: FLAT RUN
0.4 MI E OF EMMITSBURG, Frederick, MD
Over: SERVICE ROAD
1.0 MI S OF RTE 1, Baltimore city, MD
Over: OWENS CREEK
AT FOXVLLE DEERFLD RD INT, Frederick, MD
Over: OWENS CREEK
AT FOXVLLE DEERFLD RD INT, Frederick, MD
Over: LITTLE CATOCTIN CREEK
AT HARMONY RD INT, Frederick, MD
Over: BEAR CREEK
0.06 MI S RABBIT HOLLOW, Garrett, MD
Showing 4,451-4,500 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 |