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
MD 117
FairOver: LITTLE SENECA CREEK
1.03 MILES EAST OF MD 121, Montgomery, MD
Built 1953 Load: 99.9 t ADT: 7,457
MD 190
FairOver: WATTS BRANCH
3.42 MILES WEST OF MD 189, Montgomery, MD
Built 1949 Load: 99.9 t ADT: 15,240
IS 495
FairOver: SLIGO CREEK
0.55 MILE EAST OF MD 97, Montgomery, MD
Built 1960 Load: 99.9 t ADT: 232,010
IS 495
FairOver: BR OF ROCK CREEK
0.6 MILE EAST OF MD 355, Montgomery, MD
Built 1958 Load: 99.9 t ADT: 238,050
MD 28
FairOver: BRANCH OF ROCK CREEK
0.55 MILE EAST OF MD 911, Montgomery, MD
Built 1969 Load: 99.9 t ADT: 34,390
MD 586
FairOver: BRANCH OF ROCK CREEK
0.06 M E OF ANDREW STREET, Montgomery, MD
Built 1956 Load: 99.9 t ADT: 37,752
MD 124
FairOver: WHETSTONE RUN
0.447 M S of Midcounty, Montgomery, MD
Built 1986 Load: 99.9 t ADT: 23,621
MUDDY BRANCH ROAD
FairOver: MUDDY BRANCH
1 MI N GREAT SENECA HWY, Montgomery, MD
Built 1987 Load: 99.9 t ADT: 24,785
MUDDY BRANCH ROAD
FairOver: SHADY BRANCH
0.5 MILES NORTH OF MD 28, Montgomery, MD
Built 1987 Load: 99.9 t ADT: 24,739
BRIGGS CHANEY ROAD
FairOver: PAINT BRANCH
2.4 MILES EAST OF MD 650, Montgomery, MD
Built 1974 Load: 99.9 t ADT: 20,551
BRIGGS CHANEY ROAD
FairOver: LITTLE PAINT BRANCH TRIB
1 MI EAST OF US 29, Montgomery, MD
Built 1994 Load: 99.9 t ADT: 12,450
HOWARD CHAPEL ROAD
FairOver: HAIGHTS BRANCH
1.7 MI NORTH OF MD 650, Montgomery, MD
Built 1963 Load: 99.9 t ADT: 580
HAWKINS CREAMERY R
FairOver: GREAT SENECA CREEK
1.3 MILES WEST OF MD 108, Montgomery, MD
Built 1961 Load: 99.9 t ADT: 550
DEMOCRACY BOULEVAR
FairOver: CABIN JOHN CREEK
.1 MI E OF SEVEN LOCKS RD, Montgomery, MD
Built 1967 Load: 99.9 t ADT: 31,775
TILDEN LANE
FairOver: OLD FARM CREEK
1.2 MILES WEST OF MD 187, Montgomery, MD
Built 1972 Load: 99.9 t ADT: 6,533
JONES MILL ROAD
FairOver: COQUELIN RUN
0.5 MILES NORTH OF MD 410, Montgomery, MD
Built 1949 Load: 99.9 t ADT: 7,542
MONTGOMERY VILLAGE
FairOver: CABIN BRANCH
2.2 MI N OF JCT SR MD 355, Montgomery, MD
Built 1972 Load: 99.9 t ADT: 31,900
RANDOLPH ROAD
FairOver: NORTHWEST BRANCH
0.1 MI E OF KEMP MILL RD, Montgomery, MD
Built 1976 Load: 99.9 t ADT: 60,342
DEMOCRACY BLVD
FairOver: BUCK BRANCH TRIBUTARY
1.5 MI E OF JCT SR MD 189, Montgomery, MD
Built 1989 Load: 99.9 t ADT: 16,800
GOLDLEAF DRIVE
FairOver: MINNEHAHA BRANCH
0.1 MI N OF JCT SR MD 614, Montgomery, MD
Built 1985 Load: 99.9 t ADT: 743
FATHER HURLEY BOUL
FairOver: TRIB TO LITTLE SENECA CR
0.3 MI SE OF JCT I-270, Montgomery, MD
Built 1995 Load: 99.9 t ADT: 44,490
LAURIE DRIVE
FairOver: HOLLYWOOD BRANCH
0.4 MI S JCT RANDLPH RD E, Montgomery, MD
Built 1965 Load: 99.9 t ADT: 575
SPARTAN ROAD
FairOver: TRIBUTARY TO JAMES CREEK
.1 MI N OF MD-108, Montgomery, MD
Built 1990 Load: 99.9 t ADT: 6,004
OLD BALTIMORE ROAD
FairOver: TRIBUTARY TO JAMES CREEK
0.5 MI N OF MD 108, Montgomery, MD
Built 1985 Load: 99.9 t ADT: 3,494
OLD BALTIMORE ROAD
FairOver: JAMES CREEK TRIBUTARY
1.2 MI. N. OF MD 108, Montgomery, MD
Built 1998 Load: 99.9 t ADT: 3,273
MONTROSE PARKWAY
FairOver: OLD FARM CREEK TRIBUTARY
1.0 MILE WEST OF I-270, Montgomery, MD
Built 2006 Load: 99.9 t ADT: 28,776
BEXHILL DRIVE
FairOver: SILVER CREEK
AT KENSINGTON PARKWAY, Montgomery, MD
Built 1985 Load: 99.9 t ADT: 1,029
CRYSTAL ROCK DRIVE
FairOver: TRIBUTARY TO LITTLE SENE
.6 M. N. OF MD. 27, Montgomery, MD
Built 1988 Load: 99.9 t ADT: 7,114
RICHTER FARM ROAD
FairOver: TRIB TO LITTLE SENECA CR
0.1 MILES SOUTH OF MD-117, Montgomery, MD
Built 2000 Load: 99.9 t ADT: 7,433
RUSSETT ROAD
FairOver: ROCK CREEK TRIBUTARY
0.65 MI SOUTH OF MD-28, Montgomery, MD
Built 1966 Load: 99.9 t ADT: 4,597
LOCBURY DRIVE
FairOver: TRIB TO LAKE CHURCHILL
0.5 MI. W. OF I-270, Montgomery, MD
Built 1992 Load: 99.9 t ADT: 105
HARVEST SQUARE COU
FairOver: BUCK BRANCH TRIB
1.8 MI. E. OF MD 190, Montgomery, MD
Built 1987 Load: 99.9 t ADT: 21
SEVEN LOCKS ROAD
FairOver: CABIN JOHN CREEK TRIBUTA
0.5 MI N. OF MD 191, Montgomery, MD
Built 1965 Load: 99.9 t ADT: 20,520
HATHAWAY DRIVE
FairOver: LUTES RUN
1300 FT. W. OF MD 182, Montgomery, MD
Built 1983 Load: 99.9 t ADT: 104
FOUNDERS MILL DRIV
FairOver: MILL CREEK TRIB
0.7 MI. S. OF MD 115, Montgomery, MD
Built 1983 Load: 99.9 t ADT: 105
LONG CORNER ROAD
FairOver: PATUXENT RIVER TRIB
1.90 MI. N. OF MD108, Montgomery, MD
Built 1970 Load: 99.9 t ADT: 821
BUREAU DRIVE
FairOver: LONG DRAUGHT BRANCH
0.4 MILES NORTH OF MD 117, Montgomery, MD
Built 1982 Load: 99.9 t ADT: 16,173
KENSINGTON PARKWAY
FairOver: SILVER CREEK
0.5 MI EAST OF MD 193, Montgomery, MD
Built 1940 Load: 99.9 t ADT: 4,601
BEACH DRIVE
FairOver: TRIB TO ROCK CREEK
0.9 MI SOUTH OF MD 547, Montgomery, MD
Built 1968 Load: 99.9 t ADT: 6,415
SLIGO CREEK PARKW
FairOver: TRIBUTARY TO SLIGO CREEK
0.9 MI SOUTH OF MD 320, Montgomery, MD
Built 1996 Load: 99.9 t ADT: 4,344
WOOTTON PARKWAY
FairOver: TRIBUTARY TO WATTS BRANC
0.8 MI W OF JCT SR 189, Montgomery, MD
Built 1971 Load: 99.9 t ADT: 14,464
CROFTON HILL LANE
FairOver: WATTS BRANCH TRIBUTARY
0.1 MILES SOUTH OF MD 28, Montgomery, MD
Built 1990 Load: 99.9 t ADT: 300
FALLSGROVE DRIVE
FairOver: TRIBUTARY TO WATTS BRANC
0.5M S OF MD 28, Montgomery, MD
Built 2003 Load: 99.9 t ADT: 5,725
MD 5
FairOver: HENSON CREEK
0.17 MILE N OF MD 967C, Prince George's, MD
Built 1950 Load: 99.9 t ADT: 66,772
US 301
FairOver: CHARLES BRANCH
0.24 MILE SOUTH OF MD 382, Prince George's, MD
Built 1950 Load: 99.9 t ADT: 31,962
US 301 NB
FairOver: TIMOTHY BRANCH
0.66 MI N OF CHARLES CO, Prince George's, MD
Built 1950 Load: 99.9 t ADT: 82,362
US 301 SB
FairOver: TIMOTHY BRANCH
0.66 MI N OF CHARLES CO, Prince George's, MD
Built 1950 Load: 99.9 t ADT: 82,362
MD 193
FairOver: INDIAN CREEK
0.28 MILE EAST OF MD 430, Prince George's, MD
Built 1942 Load: 99.9 t ADT: 42,890
MD 193
FairOver: BRANCH OF INDIAN CREEK
AT MD 430, Prince George's, MD
Built 1962 Load: 99.9 t ADT: 45,930
MD 201
FairOver: BEAVERDAM CREEK
1.13 MILES S OF MD 212, Prince George's, MD
Built 1941 Load: 99.9 t ADT: 33,580
Showing 3,751-3,800 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 |