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
JOHNNYCAKE ROAD
FairOver: CEDAR BRANCH
CEDAR BRANCH, Baltimore, MD
Built 1975 Load: 99.9 t ADT: 3,309
GWYNNWEST ROAD
FairOver: TRIBUTARY TO GWYNNS FALL
1.0 MI. E OF MD 140, Baltimore, MD
Built 1996 Load: 99.9 t ADT: 1,442
HONEYGO BOULEVARD
FairOver: HONEYGO RUN
0.5 Mile S. of Joppa Rd., Baltimore, MD
Built 2001 Load: 99.9 t ADT: 25,109
KINTORE DRIVE
FairOver: TRIBUTARY TO WHITE MARSH
0.2 MI SW OF DUNFIELD RD, Baltimore, MD
Built 1975 Load: 99.9 t ADT: 2,100
EBONY ROAD
FairOver: TRIBUTARY TO GUNPOWDER F
2 MI NE EXIT 30 I-695, Baltimore, MD
Built 1980 Load: 99.9 t ADT: 244
BELLBECK ROAD
FairOver: TRIBUTARY TO GUNPOWDER F
1.4 MI N OF JOPPA RD, Baltimore, MD
Built 1980 Load: 99.9 t ADT: 200
GUNVIEW ROAD
FairOver: BRANCH OF GUNPOWDER FALL
0.7 MI W OF BELAIR RD, Baltimore, MD
Built 1978 Load: 99.9 t ADT: 2,323
PINEDALE DRIVE
FairOver: BRANCH OF GUNPOWDER FALL
0.4 MI. W OF JCT US 1, Baltimore, MD
Built 1980 Load: 99.9 t ADT: 6,723
LORD BALTIMORE DRI
FairOver: BRANCH OF DEAD RUN
0.5 MI N OF RT 122, Baltimore, MD
Built 1977 Load: 99.9 t ADT: 12,413
JACOBO LANE
FairOver: BRANCH OF HERRING RUN
0.1 MI S. OF GOUCHER BLVD, Baltimore, MD
Built 1975 Load: 99.9 t ADT: 454
SUNNYMEADOW LANE
FairOver: TRIBUTARY TO RED RUN
1.0 MI W OF I-795, Baltimore, MD
Built 1950 Load: 99.9 t ADT: 1,000
COLDSPRING LANE
FairOver: STONY RUN
0.4 M W CHARLES ST, Baltimore city, MD
Built 1992 Load: 99.9 t ADT: 19,796
THE ALAMEDA
FairOver: CHINQUAPIN RUN
0.7 MI N OF COLDSPRING LA, Baltimore city, MD
Built 1950 Load: 99.9 t ADT: 9,575
LOCH RAVEN BOULEVA
FairOver: CHINQUAPIN RUN
0.6 MI N COLDSPRING LA, Baltimore city, MD
Built 1932 Load: 99.9 t ADT: 32,200
LOCH RAVEN BOULEVA
FairOver: CHINQUAPIN RUN
0.6 MI N COLDSPRING LA, Baltimore city, MD
Built 1932 Load: 99.9 t ADT: 32,200
WOODBOURNE AVENUE
FairOver: CHINQUAPIN RUN
0.2 MI E OF THE ALAMEDA, Baltimore city, MD
Built 1956 Load: 99.9 t ADT: 13,340
ANNAPOLIS ROAD
FairOver: GWYNNS FALLS
0.1 MI E RUSSELL ST, Baltimore city, MD
Built 1974 Load: 99.9 t ADT: 9,896
DALRYMPLE ROAD
FairOver: FISHING CREEK
2.25 MI SE OF MD 2, Calvert, MD
Built 2000 Load: 99.9 t ADT: 375
BALL ROAD
FairOver: ST. LEONARD CREEK
0.3 MILES WEST OF MD 2-4, Calvert, MD
Built 1980 Load: 99.9 t ADT: 1,360
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
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
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
LOG CABIN ROAD
FairOver: TRIB OF TUCKAHOE CREEK
2 MI S OF MD RTE 404, Caroline, MD
Built 1975 Load: 99.9 t ADT: 268
WILKINS BRANCH ROA
FairOver: FOWLING CREEK
0.31 MI W OF MD 16, Caroline, MD
Built 2000 Load: 99.9 t ADT: 320
HOG CREEK ROAD
FairOver: HOG CREEK
1 MI E OF MD RTE 578, Caroline, MD
Built 1989 Load: 99.9 t ADT: 410
SUNSET AVENUE
FairOver: FORGE BRANCH
0.9 MI EAST OF MD 480, Caroline, MD
Built 1989 Load: 99.9 t ADT: 2,155
DETOUR ROAD
FairOver: TRIB OF CHOPTANK RIVER
0.8 MILES EAST OF MD 16, Caroline, MD
Built 1973 Load: 99.9 t ADT: 165
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
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
Showing 3,301-3,350 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.