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: CSX RAILROAD
.28 MI. N. OF MD 117, Montgomery, MD
Over: Little Paint Branch
1.23 MI W OF I-95, Prince George's, MD
Over: SEMPLE RUN
0.25 MILE WEST OF IS 81, Washington, MD
Over: NORTHEAST CREEK
@ MD 695 & MD 702, Baltimore, MD
Over: PEDDLER RUN
1.4 MI NE MD 136, Harford, MD
Over: TROTTS BRANCH
2.1 MI S OF MD 258, Anne Arundel, MD
Over: PATAPSCO RIVER FLATS
I-895 Mileposts 5.3-5.9, Baltimore, MD
Over: HERRING RUN
0.2 MI W HARFORD RD, Baltimore city, MD
Over: UNNAMED TRIBUTARY
KINGSVIEW SUBDIVISION, Charles, MD
Over: CATOCTIN CREEK
0.5 MI SOUTH OF ALT US 40, Frederick, MD
Over: TOMS CREEK
0.4 MI SOUTH OF GRIMES RD, Frederick, MD
Over: TRIBUTARY OF BALLENGER C
W OF BALLENGER CREEK PIKE, Frederick, MD
Over: TRIBUTARY TO LITTLE GUNP
0.3 MILES N OF MD 7, Harford, MD
Over: HAMMONDS BRANCH
0.2 MI S OF GORMAN RD, Howard, MD
Over: AMTRAK
0.1 MILE EAST OF MD 564, Prince George's, MD
Over: COLLINGTON BRANCH
1.2 MILES WEST OF US 301, Prince George's, MD
Over: LITTLE MILL CREEK
0.38 MI EAST OF MD 371, Worcester, MD
Over: BOXIRON CREEK
2.54 MI SE OF MD 12, Worcester, MD
Over: LONG GREEN CREEK
0.03 MI S OF LONG GRN RD, Baltimore, MD
Over: HORSEHEAD BRANCH
1.55 MI N. OF RT. 26, Baltimore, MD
Over: CSX, GWYNN'S FALLS
1.1 MI E. OF MD 140, Baltimore, MD
Over: I-95 Ramps G & H
3.2mi N of I-695/I-95, Baltimore, MD
Over: SNOWY CREEK
0.1 MI W INT CRELLIN ST R, Garrett, MD
Over: Bonifant Road & NW Branc
2.07 Mi. West of MD650, Montgomery, MD
Over: INDIAN CREEK
1.0 MILE WEST OF US 1, Prince George's, MD
Over: MATAPONI CREEK
.3 MI S ST THOMAS CHUR RD, Prince George's, MD
Over: MARSH RUN
0.68 MI S OF BAKERSVILLE, Washington, MD
Over: MARSH RUN
0.07 MI S OF BAKERSVILLE, Washington, MD
Over: CSX RAILROAD
0.05 MI E OF US 40, Baltimore, MD
Over: CSX RAILROAD
0.1 MI E HANOVER PIKE, Baltimore, MD
Over: TRIBUTARY TO PINEY RUN
0.3 MI N OF DOVER ROAD, Baltimore, MD
Over: LITTLE FALLS
0.8 MI NE OF MIDDLETOWN R, Baltimore, MD
Over: ALLOWAY CREEK
.7 M N OF BOWERS ROAD, Carroll, MD
Over: SANDY BRANCH
0.05 MI S OF MIDDLE N RD, Cecil, MD
Over: MIDDLE PATUXENT RIVER
.02 Mi N of MD 32, Howard, MD
Over: MD200 Ramp I-B
1.6 miles south of MD198, Prince George's, MD
Over: UNNAMED TRIBUTARY TO SEV
.7 MI S OF ROUTE 3, Anne Arundel, MD
Over: US 15
1 MI N OF MD 26, Frederick, MD
Over: LITTLE PATUXENT RIVER
NORTH TRACT, Anne Arundel, MD
Over: STONY RUN
0.5 MI W OF MD 170, Anne Arundel, MD
Over: COWHIDE BRANCH
ANNE ARUNDEL MEDICAL PARK, Anne Arundel, MD
Over: CAMPBELL ROAD
0.66 MI S OF MD RTE 43, Anne Arundel, MD
Over: BEAR BRANCH
1.06 MILES N OF MD 140, Carroll, MD
Over: NEALE SOUND
0.1 MI S MD RTE 254, Charles, MD
Over: MILL BROOK
1.4 MILES E OF MD 136, Harford, MD
Over: SNOWDEN RIVER PARKWAY
0.84 MILE WEST OF MD 108, Howard, MD
Over: MD 200 (ICC)
4.1 MI WEST OF MD 65, Montgomery, MD
Over: ISLAND CREEK
2.5 MI FROM MD RTE 213, Queen Anne's, MD
Over: NORTHEAST CREEK
1.49 MILES N OF MD 274, Cecil, MD
Over: HENSON CREEK & TRAIL
0.13 MI S OF HAVER HIL ST, Prince George's, MD
Showing 4,601-4,650 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 |