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: MOORE'S RUN
0.7 MI S RADECKE AVE, Baltimore city, MD
Over: GWYNNS FALLS
0.4 MI W HILTON PKWY, Baltimore city, MD
Over: CSX
0.2 MI. W. OF FT. MCHENRY, Baltimore city, MD
Over: DEEP RUN
0.1 MI N OF MD RTE 103, Anne Arundel, MD
Over: CANTON RAILROAD
PONCA ST. OVER CANTON RR, Baltimore city, MD
Over: HERRING RUN
0.09 MI E PERRING PKWY, Baltimore city, MD
Over: UNNAMED STREAM
0.1 MI E PHELPS LUCK, Howard, MD
Over: EVITTS CREEK
1.48 MILES NE OF I-68, Allegany, MD
Over: YOUGHIOGHENY RIVER
1.28 MILES SOUTH OF US 50, Garrett, MD
Over: NE BRANCH OF ANACOSTIA R
0.33 MI W OF MD 201, Prince George's, MD
Over: MUDDY BRANCH
1.8 MILES SOUTH OF MD 28, Montgomery, MD
Over: GWYNNS FALLS
0.4 MI E CATON AVE, Baltimore city, MD
Over: DOG CREEK
1.3 MI W OF MD RTE 67, Washington, MD
Over: NASSAWANGO CREEK
0.67 M S OF MT HERMON, Wicomico, MD
Over: ISLAND BRANCH
0.5 MILES SE OF MD 136, Harford, MD
Over: PLUMTREE BRANCH
0.8 MI. NORTH OF MD. 108, Howard, MD
Over: CSXT RAILROAD
0.5 MI EAST OF MD 355, Montgomery, MD
Over: ROCKBURN BRANCH
0.1 MI W OF I-95, Howard, MD
Over: WINDMILL ISLAND CREEK
0.5 MI W OF GRIFFITH NECK, Dorchester, MD
Over: CHICAMACOMICO RIVER
0.64 MI.W.OF STEELE N RD., Dorchester, MD
Over: DUTCH HOLLOW RUN
AT INTERSECTION MD 36, Allegany, MD
Over: TRIB LITTLE PATUXENT R
At Cradlerock Way, Howard, MD
Over: BURNT MILL BRANCH
0.5 MI E OF MD RTE 94, Wicomico, MD
Over: ROARING RUN
0.2 MI NE OF MD 140, Carroll, MD
Over: JENNINGS RUN
0.33 MILE SOUTH OF MD 638, Allegany, MD
Over: MARLEY CREEK
0.4 MI. E. OF OAKWOOD RD, Anne Arundel, MD
Over: TRIBUTARY TO SEVERN RUN
0.5 MI. N OF MD32, Anne Arundel, MD
Over: BRANCH OF WHITE MARSH RU
0.5 MI NW OF SR 7, Baltimore, MD
Over: BR OF MATTAWOMAN CREEK
0.02 MILE WEST OF MD 224, Charles, MD
Over: HANCOCK RUN
0.1 MI W MD RTE 6, Charles, MD
Over: SWANSON CREEK
1 MI E. GALLANT GREEN RD, Charles, MD
Over: LOCUST RUN
0.07 MI EAST OF MD RTE 85, Frederick, MD
Over: CHURCH BRANCH
0.1 MI N OF WELLER ROAD, Frederick, MD
Over: CATOCTIN CREEK
0.75 MI EAST OF MD 17, Frederick, MD
Over: TRIB TO LITTLE PATUXENT
1000' NW of Martin Ln, Howard, MD
Over: UNNAMED STREAM
1/8 MI S OF MD 108, Howard, MD
Over: BRANCH OF DEEP RUN
50' east of MD 103, Howard, MD
Over: MILL CREEK
.5 MI W OF SHADY GROVE RD, Montgomery, MD
Over: GREAT SENECA CREEK TRIBU
.06 M W OF HAWK. CREAM. R, Montgomery, MD
Over: BOOZE CREEK
900 FT. W. OF MD 191, Montgomery, MD
Over: LONG DRAUGHT BRANCH
1 MILE SOUTH OF MD 117, Montgomery, MD
Over: CLARA BARTON PARKWAY (SB
0.1 MILES WEST OF MACARTH, Montgomery, MD
Over: TRIBUTARY TO NORTHEAST B
0.9 MI N OF GOOD LUCK RD, Prince George's, MD
Over: TRIB TO PATUXENT RIVER
0.5 MI NORTH OF MD 450, Prince George's, MD
Over: CSXT RAILROAD
0.2 MI W OF CUMBERLAND ST, Allegany, MD
Over: CSXT RAILROAD
0.6 MI E OF WASHINGTON ST, Allegany, MD
Over: ROCK RUN
.01 MI S. OF RACE STREET, Cecil, MD
Over: HUNTING CREEK
ON CAROLINE COUNTY LINE, Dorchester, MD
Over: CSXT RAILROAD
0.2 MI E OF MICHIGAN AVE, Montgomery, MD
Over: PATUXENT RIVER
ON AA CO LINE, Prince George's, MD
Showing 5,451-5,500 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 |