Total Bridges
5,527
Public highway bridges in Maryland
State profile · Below national median SD
Maryland bridge safety
Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in Maryland — drawn straight from the FHWA National Bridge Inventory.
- 5,527
- Public bridges
- 25.9%
- Good condition
- 4.3%
- Poor condition
- 4.3%
- Structurally deficient
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%
Maryland vs national bridge condition
Maryland — Good condition share 25.9%
National avg
Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).
Maryland — Structurally deficient share 14.2%
National avg
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.
Condition Distribution
Bridge inventory deck-condition mix — Maryland (FHWA NBI)
Counties (24)
Allegany 245 Anne Arundel 395 Baltimore 787 Baltimore city 380 Calvert 33 Caroline 70 Carroll 205 Cecil 194 Charles 94 Dorchester 47 Frederick 491 Garrett 139 Harford 275 Howard 310 Kent 44 Montgomery 522 Prince George's 582 Queen Anne's 88 Somerset 46 St. Mary's 50 Talbot 42 Washington 301 Wicomico 100 Worcester 82
Maryland vs nearby ranks
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
Connecticut
3.95% top marginal rate
47
Tennessee
3.97% top marginal rate
24
Maryland
4.27% top marginal rate
08
Colorado
4.32% top marginal rate
41
Oregon
4.46% top marginal rate
Bridges Needing Most Attention in Maryland
Six lowest-condition bridges in Maryland, ranked by composite NBI rating. Each is inspected at least every 24 months.
OLD SELBYSPORT RD
PoorOver: BEAR CREEK
0.01 MI N OF WALNUT ST, Garrett, MD
Built 1920 Load: 2.7 t ADT: 30
ZION ROAD
PoorOver: HAWLINGS RIVER
2.8 MILES NORTH OF MD 108, Montgomery, MD
Built 1930 Load: 4.5 t ADT: 2,440
ROXBURY ROAD
PoorOver: BEAVER CREEK
0.1 MI W OF ALT US RTE 40, Washington, MD
Built 1920 Load: 7.3 t ADT: 533
TUFTON AVENUE
PoorOver: WATERSPOUT RUN
2.63 MI. WEST MD 25, Baltimore, MD
Built 1920 Load: 7.7 t ADT: 7,735
MOHRS LANE
Structurally DeficientOver: CSX RAILROAD
0.1 MI NW OF US RTE 40, Baltimore, MD
Built 1912 Load: 9.1 t ADT: 1,600
OLD MONTGOMERY RD
Structurally DeficientOver: LITTLE PATUXENT RIVER
0.5 MI W OF US RTE 29, Howard, MD
Built 1935 Load: 10.0 t ADT: 10
All Bridges in Maryland
HALTER ROAD
FairOver: BEAR BRANCH
0.68 N PLEASANT VALLEY RD, Carroll, MD
Built 1981 Load: 99.9 t ADT: 775
FLAG MARSH ROAD
FairOver: SOUTH BR PATAPSCO RIVER
ON HOWARD CO LINE, Carroll, MD
Built 1988 Load: 99.9 t ADT: 747
GAITHER ROAD
FairOver: UNNAMED STREAM
0.1 MI N HOWARD CO LINE, Carroll, MD
Built 1989 Load: 99.9 t ADT: 1,282
OKLAHOMA ROAD
FairOver: SNOWDEN RUN
1.0 MILES NORTH OF MD 26, Carroll, MD
Built 1971 Load: 99.9 t ADT: 3,466
HOFFMAN MILL ROAD
FairOver: ASPEN RUN
.3 MI E OF COON CLUB ROAD, Carroll, MD
Built 1999 Load: 99.9 t ADT: 419
ECKARD ROAD
FairOver: BIG PIPE CREEK
0.26 MI SOUTH OF MD 496, Carroll, MD
Built 1984 Load: 99.9 t ADT: 174
MD 7C
FairOver: MILL CREEK
1.84 MILES SOUTH OF US 40, Cecil, MD
Built 1987 Load: 99.9 t ADT: 4,860
MD 222
FairOver: HAPPY VALLEY BRANCH
1.52 MILE NORTH OF MD 275, Cecil, MD
Built 1932 Load: 99.9 t ADT: 2,701
BLUE BALL RD
FairOver: LITTLE NORTHEAST CREEK
0.36 MI S OF MD 273, Cecil, MD
Built 1900 Load: 99.9 t ADT: 4,014
I-95
FairOver: PRINCIPIO CREEK
Milepost M95.3, Cecil, MD
Built 1963 Load: 99.9 t ADT: 83,628
MD 225
FairOver: BR OF PORT TOBACCO CREEK
1.81 MILES WEST OF US 301, Charles, MD
Built 1950 Load: 99.9 t ADT: 12,100
DUBOIS ROAD
FairOver: TRINITY CHURCH RUN
2 MI S MD RTE 6, Charles, MD
Built 1970 Load: 99.9 t ADT: 1,403
BILLINGSLEY ROAD
FairOver: TRIB TO KERRICK CREEK
1 mile East of US 301, Charles, MD
Built 1998 Load: 99.9 t ADT: 17,283
MAPLE DAM RD
FairOver: LITTLE BLACKWATER RIVER
2.16 MI S OF MD RTE 16, Dorchester, MD
Built 1960 Load: 99.9 t ADT: 455
MAIDEN FOREST RD
FairOver: CHICAMACOMICO RIVER
1.44 MI N OF US 50, Dorchester, MD
Built 1960 Load: 99.9 t ADT: 296
KEY WALLACE DRIVE
FairOver: LITTLE BLACKWATER RIVER
3.07 MILES EAST OF MD 335, Dorchester, MD
Built 1994 Load: 99.9 t ADT: 331
SCHNOOR ROAD
FairOver: LITTLE BLACKWATER RIVER
2 MI S OF MD RTE 16, Dorchester, MD
Built 1992 Load: 99.9 t ADT: 63
DECOURSEY BRIDGE
FairOver: TRANSQUAKING RIVER
1.27 MI E OF BUCKTOWN RD, Dorchester, MD
Built 1994 Load: 99.9 t ADT: 244
US 15 BU
FairOver: TOMS CREEK
0.23 MILE NORTH OF US 15, Frederick, MD
Built 1923 Load: 99.9 t ADT: 7,680
US 15 & RAMP 8
FairOver: CARROLL CREEK
0.64 MILE NORTH OF US 40, Frederick, MD
Built 1958 Load: 99.9 t ADT: 95,190
MD 26
FairOver: N FORK LINGANORE CREEK
2.53 MI W OF CARROLL CO, Frederick, MD
Built 1950 Load: 99.9 t ADT: 5,272
US 340
FairOver: LITTLE CATOCTIN CREEK
0.36 MILE EAST OF MD 17, Frederick, MD
Built 1964 Load: 99.9 t ADT: 24,600
IS 70
FairOver: GRINDSTONE RUN
0.3 MILE WEST OF MD 17, Frederick, MD
Built 1968 Load: 99.9 t ADT: 70,011
IS 70
FairOver: LONG BRANCH
0.23 M E OF BR NO 1018400, Frederick, MD
Built 1985 Load: 99.9 t ADT: 62,311
MANOR WOODS ROAD
FairOver: TUSCARORA CREEK
0.53 MI E OF BALLENGER CR, Frederick, MD
Built 1970 Load: 99.9 t ADT: 965
WESTVIEW DRIVE
FairOver: QUARRY BRANCH
0.15 MI N OF CRESTWOOD BV, Frederick, MD
Built 2004 Load: 99.9 t ADT: 1,500
OLD FREDERICK ROAD
FairOver: BEAVER BRANCH
2.38 MILES N. OF MD RT 77, Frederick, MD
Built 1975 Load: 99.9 t ADT: 784
APPOLDS ROAD
FairOver: BEAVER BRANCH
0.6 MI WEST OF MD 76, Frederick, MD
Built 1972 Load: 99.9 t ADT: 346
YEAGERTOWN ROAD
FairOver: LOCAL STREAM
1.25 MI NORTH OF MD 144, Frederick, MD
Built 1982 Load: 99.9 t ADT: 3,203
HOFFMAN SEACHRIST
FairOver: DORCUS BRANCH
425 FT SOUTH OF MD 550, Frederick, MD
Built 1963 Load: 99.9 t ADT: 260
LEHIGH ROAD
FairOver: SAMS CREEK
0.1 MI E OF CLEMSONVILLE, Frederick, MD
Built 1998 Load: 99.9 t ADT: 322
WOODVILLE ROAD
FairOver: WOODVILLE BRANCH
0.1 MI N OF BOTTOM RD, Frederick, MD
Built 1972 Load: 99.9 t ADT: 1,333
GAMBRILL PARK ROAD
FairOver: LITTLE FISHING CREEK
N. OF MOUNTAINDALE ROAD, Frederick, MD
Built 1980 Load: 99.9 t ADT: 50
MOUNT PHILLIP ROAD
FairOver: BRANCH OF ROCK CREEK
230' S OF US ALT 40, Frederick, MD
Built 1980 Load: 99.9 t ADT: 5,847
DEVILBISS BRIDGE R
FairOver: GLADE CREEK
AT GLADE RD INTERSECTION, Frederick, MD
Built 1972 Load: 99.9 t ADT: 2,691
BRUNSWICK STREET
FairOver: LOCAL STREAM
420 FT W OF CENTRAL AVE, Frederick, MD
Built 1962 Load: 99.9 t ADT: 797
HIGHLAND STREET
FairOver: CARROLL CREEK
0.9 MI EAST OF MD 355, Frederick, MD
Built 1988 Load: 99.9 t ADT: 5,850
OLD CAMP ROAD
FairOver: ROCK CREEK
500 FEET NORTH OF US 40, Frederick, MD
Built 1976 Load: 99.9 t ADT: 6,930
WILLOWDALE DRIVE
FairOver: ROCK CREEK
0.4 MI NORTH OF US 40, Frederick, MD
Built 1976 Load: 99.9 t ADT: 11,232
BAUGHMANS LANE
FairOver: CARROLL CREEK
100' S. OF ROSEMONT AVE., Frederick, MD
Built 1961 Load: 99.9 t ADT: 20,388
BAUGHMANS LANE
FairOver: ROCK CREEK
1 MILE NORTH OF US 40, Frederick, MD
Built 1970 Load: 99.9 t ADT: 20,388
WAVERLY DRIVE
FairOver: ROCK CREEK
0.5 MILES NORTH OF US 40, Frederick, MD
Built 1971 Load: 99.9 t ADT: 5,382
BEL AIRE LANE
FairOver: ROCK CREEK
0.2 MI NORTH OF KEY PKWY, Frederick, MD
Built 1993 Load: 99.9 t ADT: 2,144
SCHIFFERSTADT BOUL
FairOver: TRIBUTARY NO. 8
0.8 MI EAST OF MD 355, Frederick, MD
Built 1986 Load: 99.9 t ADT: 3,310
SCHIFFERSTADT BOUL
FairOver: DETRICK BRANCH
300 FEET EAST OF MD 355, Frederick, MD
Built 1990 Load: 99.9 t ADT: 3,310
THOMAS JOHNSON DRI
FairOver: TWO MILE RUN
2000 FT NE OF OPOSSUMTOWN, Frederick, MD
Built 1981 Load: 99.9 t ADT: 9,570
GLENBROOK DRIVE
FairOver: HOLLOW CREEK
0.2 MI S OF MIDDLETWN PWY, Frederick, MD
Built 2004 Load: 99.9 t ADT: 1,115
MD 42
FairOver: BUFFALO RUN
1.02 MILES N OF MD 42A, Garrett, MD
Built 1933 Load: 99.9 t ADT: 2,055
IS 68/US 219
FairOver: BIG SHADE RUN
0.73 MILE WEST OF MD 495, Garrett, MD
Built 1975 Load: 99.9 t ADT: 16,541
HERRINGTON MANOR R
FairOver: HERRINGTON CREEK
1.3MI S OF SWALLOW FALLS, Garrett, MD
Built 1970 Load: 99.9 t ADT: 1,069
Showing 3,651-3,700 of 5,527 bridges
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges Editorial.
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 |