Total Bridges
5,484
Public highway bridges in Maryland
State profile · Below median Poor share
Maryland bridge safety
According to the Federal Highway Administration's 2024 National Bridge Inventory, condition ratings, load ratings, and Poor-condition shares for every public highway bridge in Maryland.
- 5,484
- Public bridges
- 32.3%
- Good condition
- 4.6%
- Poor condition
Maryland holds 5,484 public highway bridges (#34 of 52 by inventory) with a 4.56% Poor share (#38 of 52 by Poor share).
That is 4.6% of the state's inventory, against an average of 7.5% across the 54 states and territories with Poor-rated bridges on file, which places it 15 of 54 ordered from the lowest Poor share upward. A bridge is rated Poor when its weakest applicable component scores 4 or below on the inspecting agency's 0-9 scale, so the category is a maintenance and funding signal rather than a closure order or a live crossing-safety verdict.
Inventory: FHWA NBI 2024 · last ETL August 2026
Good Condition
32.3%
1,771 bridges rated 7-9
-17.7pp vs 50% benchmark
Poor Condition
4.6%
250 bridges whose lowest applicable component is rated 0-4
-3.0pp vs national avg 7.5%
Maryland vs national bridge condition
Maryland - Good condition share 32.3%
National avg
Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).
Maryland - Poor-condition share 15.2%
National avg
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.5%.
Maryland in the national condition pattern
Each point is a state or territory in the FHWA NBI; the highlighted point is this profile.
Maryland vs all states by public bridge inventory
Where this state's FHWA NBI public-highway bridge count sits among every state and territory on PlainBridges
5,484 34th of 54 higher than 20 of 54 states
States and territories, banded by public bridge inventory size
Each bar is a band; taller bars hold more states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source FHWA National Bridge Inventory · 2024
Read the rank neighborhood for Maryland
The highlighted point is Maryland: 5,484 bridges and 4.56% in Poor condition, rank #15 of 54 jurisdictions ordered from the lowest share upward. The five jurisdictions immediately above and below Maryland on that same Poor-share ordering:
- Minnesota: 13,532 bridges · 4.44% Poor
- New Mexico: 4,035 bridges · 4.51% Poor
- Maryland: 5,484 bridges · 4.56% Poor
- Oregon: 8,305 bridges · 4.61% Poor
- Connecticut: 4,365 bridges · 4.72% Poor
The full national sortable table lives on the rankings page.
Material families in Maryland
Exclusive FHWA material families across all 5,484 bridges in this state; continuous variants fold into the parent family. Orthogonal to the Poor-share scatter above.
Who maintains Maryland’s inventory
State agency holds 53.4% of the 5,484 public highway bridges filed under Maryland in the 2024 NBI, the agency-of-record split for this state, not a condition verdict.
When Maryland’s bridges were built
Pre-1950 construction accounts for 15.9% of the 5,484 bridges with a recorded original year in Maryland. Era bands are orthogonal to the Poor-share ranking above.
Condition Distribution
Counties (24)
Allegany 245 Anne Arundel 389 Baltimore 783 Baltimore city 374 Calvert 33 Caroline 70 Carroll 205 Cecil 193 Charles 94 Dorchester 47 Frederick 486 Garrett 139 Harford 275 Howard 309 Kent 44 Montgomery 515 Prince George's 576 Queen Anne's 88 Somerset 46 St. Mary's 50 Talbot 42 Washington 300 Wicomico 99 Worcester 82
Maryland vs nearby ranks
Adjacent states by Poor-condition share (lower share = better)
States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Maryland on the same metric.
MN
Minnesota
4.44% top marginal rate
NM
New Mexico
4.51% top marginal rate
MD
Maryland
4.56% top marginal rate
OR
Oregon
4.61% top marginal rate
CT
Connecticut
4.72% top marginal rate
Bridges Needing Most Attention in Maryland
Six lowest-condition bridges in Maryland, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.
WASHINGTON STREET
PoorOver: CSXT RAILROAD
0.2 MI W OF CUMBERLAND ST, Allegany, MD
Built 1930 Load: 0.0 t ADT: 110
CUMBERLAND STREET
PoorOver: CSXT RAILROAD
0.6 MI E OF WASHINGTON ST, Allegany, MD
Built 1929 Load: 0.0 t ADT: 110
MILL STREET
PoorOver: ROCK RUN
.01 MI S. OF RACE STREET, Cecil, MD
Built 1940 Load: 0.0 t ADT: 100
BACK LANDING ROAD
PoorOver: HUNTING CREEK
ON CAROLINE COUNTY LINE, Dorchester, MD
Built 1941 Load: 0.0 t
TALBOT AVENUE
PoorOver: CSXT RAILROAD
0.2 MI E OF MICHIGAN AVE, Montgomery, MD
Built 1918 Load: 0.0 t ADT: 1,430
TAYLOR MILL ROAD
PoorOver: OLD MILL STREAM BRANCH
0.7 MILE EAST OF MD 213, Queen Anne's, MD
Built 1955 Load: 0.0 t ADT: 100
All Bridges in Maryland
I-695 INNER LOOP
FairOver: P AND B RAILROAD
0.3 MI W OF MD 151, Baltimore, MD
Built 1997 Load: 58.0 t ADT: 11,133
BUS LOOP
FairOver: WMATA RAILROAD
1 mi. S. of Suitland Pkwy, Prince George's, MD
Built 1995 Load: 58.0 t ADT: 484
IS 83 SBR
FairOver: DAIRY ROAD
0.99 MILE SOUTH OF MD 45, Baltimore, MD
Built 1958 Load: 58.5 t ADT: 50,431
IS 795 NBR
FairOver: CSX TRANSPORTATION
0.71 MILE NORTH OF IS 695, Baltimore, MD
Built 1983 Load: 58.5 t ADT: 110,982
MD 115
FairOver: NORTH BR OF ROCK CREEK
0.29 M E OF GRIST MILL DR, Montgomery, MD
Built 1917 Load: 58.5 t ADT: 16,981
MD 28 EB
FairOver: ROCK CREEK
0.31 M E OF AVERY ROAD, Montgomery, MD
Built 1970 Load: 58.5 t ADT: 23,866
MD 28 WB
FairOver: ROCK CREEK
0.31 M E OF AVERY ROAD, Montgomery, MD
Built 1970 Load: 58.5 t ADT: 24,840
US 50 RMP E(5 6)
FairOver: US 50
@ US 50, Prince George's, MD
Built 1959 Load: 58.5 t ADT: 12,110
WILLIAMS ROAD SE
FairOver: MURLEY BRANCH
0.19 MI W OF MURLEY BR RD, Allegany, MD
Built 1985 Load: 58.5 t ADT: 255
UNION STREET
FairOver: GEORGES CREEK
0.03 MI S OF MD 36, Allegany, MD
Built 1914 Load: 58.5 t ADT: 675
GLENVILLE ROAD
FairOver: GRAVEYARD CREEK
0.3 MI S OF HARMONY CH RD, Harford, MD
Built 1930 Load: 58.5 t ADT: 349
IS 97 SB
FairOver: MD 32 WBR
0.36 MI S OF MD 3, Anne Arundel, MD
Built 1989 Load: 59.0 t ADT: 93,710
IS 83 NBR
FairOver: DAIRY ROAD
0.99 MILE SOUTH OF MD 45, Baltimore, MD
Built 1958 Load: 59.0 t ADT: 50,431
US 40
FairOver: STONY RUN
0.37 MILE WEST OF MD 272, Cecil, MD
Built 1940 Load: 59.0 t ADT: 21,540
MD 156
FairOver: SWAN CREEK
0.54 MILE WEST OF MD 155, Harford, MD
Built 1922 Load: 59.0 t ADT: 970
MD 100 WB
FairOver: IS 95
0.79 MILE WEST OF US 1, Howard, MD
Built 1970 Load: 59.0 t ADT: 90,902
MD 175 NB
FairOver: CO RTES 2035 & 2036
0.5 MILE NORTH OF MD 108, Howard, MD
Built 1975 Load: 59.0 t ADT: 30,855
MD 208
FairOver: NORTHWEST BRANCH
0.71 MILE NORTH OF US 1, Prince George's, MD
Built 1932 Load: 59.0 t ADT: 7,001
MD 410
FairOver: US 50
0.63 MILE EAST OF MD 450, Prince George's, MD
Built 1990 Load: 59.0 t ADT: 24,402
BELFAST ROAD
FairOver: TRIBUTARY TO PINEY CREEK
0.6 MI W OF IS 83, Baltimore, MD
Built 1920 Load: 59.0 t ADT: 2,600
COUDON BOULEVARD
FairOver: TRIBUTARY TO MILL CREEK
1 MI. N PRINCIPIO FURNACE, Cecil, MD
Built 2003 Load: 59.0 t ADT: 1,890
KLEES MILL ROAD
FairOver: MORGAN RUN
1.25 M W OF MD 32, Carroll, MD
Built 1988 Load: 59.0 t ADT: 1,754
GLEN ROAD
FairOver: PINEY BRANCH
0.6 MI W OF GLEN MILL RD, Montgomery, MD
Built 1935 Load: 59.0 t ADT: 4,689
TURKEY FOOT ROAD
FairOver: MUDDY BRANCH
100 FT N OF QUERY MILL RD, Montgomery, MD
Built 1968 Load: 59.0 t ADT: 1,453
LAMONT DRIVE
FairOver: BRIER DITCH
AT WESTBROOK DRIVE, Prince George's, MD
Built 1970 Load: 59.0 t ADT: 8,610
BEE OAK ROAD
FairOver: TRIBUTARY OF WOLF DEN BR
1 MI S OF CEDARVILLE RD, Prince George's, MD
Built 1975 Load: 59.0 t ADT: 100
IS 83 SBR
FairOver: SHAWAN ROAD EBR
0.90 MI N OF BEAVERDAM RD, Baltimore, MD
Built 1959 Load: 59.4 t ADT: 33,380
MD 695 RAMP 7A
FairOver: FORCE MAIN
@ MD 695 & MD 702, Baltimore, MD
Built 1972 Load: 59.4 t ADT: 7,951
MD 331
FairOver: HUNTING CREEK
ON DORCHESTER CO LINE, Caroline, MD
Built 1958 Load: 59.4 t ADT: 9,800
MD 404 ALT
FairOver: TUCKAHOE CREEK
ON TALBOT CO LINE, Caroline, MD
Built 1915 Load: 59.4 t ADT: 1,551
IS 70 EBR
FairOver: CATOCTIN CREEK
0.60 MILE EAST OF MD 17, Frederick, MD
Built 1968 Load: 59.4 t ADT: 68,230
IS 70 WB
FairOver: CATOCTIN CREEK
0.60 MILE EAST OF MD 17, Frederick, MD
Built 1968 Load: 59.4 t ADT: 68,230
MD 175 SB
FairOver: CO RTES 2035 & 2036
0.5 MILE NORTH OF MD 108, Howard, MD
Built 1975 Load: 59.4 t ADT: 34,795
IS 95 OL
FairOver: INDIAN CREEK
0.74 MILE NORTH OF MD 201, Prince George's, MD
Built 1963 Load: 59.4 t ADT: 211,410
MD 662
FairOver: MILL CREEK
0.76 MILE NORTH OF US 50, Talbot, MD
Built 1914 Load: 59.4 t ADT: 1,061
IS 81 SB
FairOver: MAUGANSVILLE ROAD
0.38 MILE NORTH OF MD 58, Washington, MD
Built 1958 Load: 59.4 t ADT: 63,000
MD 68
FairOver: WINCHESTER & WESTERN RR
0.06 MILE EAST OF MD 63, Washington, MD
Built 1965 Load: 59.4 t ADT: 7,000
OLDFIELD POINT RD
FairOver: LITTLE ELK CREEK
CORP LMTS OF ELKTON, Cecil, MD
Built 1999 Load: 59.4 t ADT: 5,242
IRON HILL ROAD
FairOver: AMTRAK
0.37 MI S OF MD 279, Cecil, MD
Built 1981 Load: 59.4 t ADT: 1,236
LONDON BRIDGE ROAD
FairOver: MORGAN RUN
1.7 M S OF MD 32, Carroll, MD
Built 1956 Load: 59.4 t ADT: 787
WESLEY ROAD
FairOver: NORTH BRANCH OF PATAPSCO
0.4 MI E OF SANDYMONT RD, Carroll, MD
Built 1975 Load: 59.4 t ADT: 824
EAST GUDE DRIVE (E
FairOver: CSXT RR & WMATA METRO
0.1 MILE EAST OF MD 355, Montgomery, MD
Built 1989 Load: 59.4 t ADT: 23,921
KRETSINGER ROAD
FairOver: LITTLE ANTIETAM CREEK
0.18 MI N OF WELTY CH RD, Washington, MD
Built 1987 Load: 59.4 t ADT: 131
EASTERN AVENUE
FairOver: IS 95
MILEPOST 58.6, Baltimore city, MD
Built 1971 Load: 59.4 t ADT: 41,378
IS 695 RAMP F
FairOver: IS 97
0.31 M N OF BALTO CITY, Anne Arundel, MD
Built 1989 Load: 59.9 t ADT: 14,460
IS 895A RAMP 2
FairOver: IS 895B
0.48 MILE NORTH OF MD 695, Anne Arundel, MD
Built 1995 Load: 59.9 t ADT: 5,222
MD 45
FairOver: LITTLE FALLS
0.05 MI N OF FREDERICK RD, Baltimore, MD
Built 1930 Load: 59.9 t ADT: 5,350
IS 795 NBR
FairOver: CSX TRANSPORTATION
0.82 MI N OF MCDONOUGH RD, Baltimore, MD
Built 1984 Load: 59.9 t ADT: 110,982
MD 225
FairOver: BR OF MATTAWOMAN CREEK
1.88 MILES EAST OF MD 224, Charles, MD
Built 1929 Load: 59.9 t ADT: 12,302
MD 335
FairOver: FISHING CREEK
0.18 M N OF HOOPER ISL RD, Dorchester, MD
Built 1992 Load: 59.9 t ADT: 871
Showing 2,651-2,700 of 5,484 bridges
Related
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.
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). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.
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.
What to do with this
Use Maryland's inventory picture to drill to a county or a specific span.
- Browse counties in Maryland and open the highest-Poor shares first. County list
- See where this state sits among peers on Poor-condition share. State rankings
- Compare this state with another jurisdiction on the same measures. State compare
NBI condition ratings are inventory snapshots, not live crossing-safety verdicts.
Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Maryland Good/Fair/Poor shares and county rollups on this page are computed from the same NBI extract as the national boards; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.