State profile · Below median Poor share

Delaware 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 Delaware.

872
Public bridges
40.5%
Good condition
1.3%
Poor condition

Delaware holds 872 public highway bridges (#50 of 52 by inventory) with a 1.26% Poor share (#49 of 52 by Poor share).

That is 1.3% 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 4 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

Total Bridges

872

Public highway bridges in Delaware

Good Condition

40.5%

353 bridges rated 7-9

-9.5pp vs 50% benchmark

Poor Condition

1.3%

11 bridges whose lowest applicable component is rated 0-4

-6.3pp vs national avg 7.5%

Delaware vs national bridge condition

Delaware - Good condition share 40.5%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

Delaware - Poor-condition share 4.2%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.5%.

Delaware in the national condition pattern

Each point is a state or territory in the FHWA NBI; the highlighted point is this profile.

Inventory size and Poor-condition share are different measures: Delaware has 872 bridges and a 1.3% Poor-condition share in the 2024 NBI, rank #4 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold. Scatter plot of 54 data points. 0%10%20%30%40% 0k20k40k60k Public bridges in inventory (thousands) Poor-condition share (%) DE, Public bridges in inventory (thousands): 0.9k · Poor-condition share (%): 1.26%AL, Public bridges in inventory (thousands): 16.2k · Poor-condition share (%): 3.35%AK, Public bridges in inventory (thousands): 1.7k · Poor-condition share (%): 7.89%AZ, Public bridges in inventory (thousands): 8.6k · Poor-condition share (%): 1.15%AR, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 5.43%CA, Public bridges in inventory (thousands): 25.8k · Poor-condition share (%): 5.91%CO, Public bridges in inventory (thousands): 9k · Poor-condition share (%): 4.82%CT, Public bridges in inventory (thousands): 4.4k · Poor-condition share (%): 4.72%DC, Public bridges in inventory (thousands): 0.3k · Poor-condition share (%): 1.95%FL, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 2.79%GA, Public bridges in inventory (thousands): 15.1k · Poor-condition share (%): 1.59%GU, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 12.77%HI, Public bridges in inventory (thousands): 1.2k · Poor-condition share (%): 6.53%ID, Public bridges in inventory (thousands): 4.6k · Poor-condition share (%): 4.9%IL, Public bridges in inventory (thousands): 26.9k · Poor-condition share (%): 9.35%IN, Public bridges in inventory (thousands): 19.5k · Poor-condition share (%): 5.22%IA, Public bridges in inventory (thousands): 23.7k · Poor-condition share (%): 19.16%KS, Public bridges in inventory (thousands): 24.9k · Poor-condition share (%): 5.26%KY, Public bridges in inventory (thousands): 14.5k · Poor-condition share (%): 7.37%LA, Public bridges in inventory (thousands): 12.7k · Poor-condition share (%): 11.48%ME, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 15.41%MD, Public bridges in inventory (thousands): 5.5k · Poor-condition share (%): 4.56%MA, Public bridges in inventory (thousands): 5.3k · Poor-condition share (%): 8.88%MI, Public bridges in inventory (thousands): 11.4k · Poor-condition share (%): 11.27%MN, Public bridges in inventory (thousands): 13.5k · Poor-condition share (%): 4.44%MS, Public bridges in inventory (thousands): 16.7k · Poor-condition share (%): 6.03%MO, Public bridges in inventory (thousands): 24.6k · Poor-condition share (%): 8.95%MT, Public bridges in inventory (thousands): 5.2k · Poor-condition share (%): 6.81%NE, Public bridges in inventory (thousands): 15.4k · Poor-condition share (%): 7.9%NV, Public bridges in inventory (thousands): 2.1k · Poor-condition share (%): 1.14%NH, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 7.51%NJ, Public bridges in inventory (thousands): 6.8k · Poor-condition share (%): 6.01%NM, Public bridges in inventory (thousands): 4k · Poor-condition share (%): 4.51%NY, Public bridges in inventory (thousands): 17.6k · Poor-condition share (%): 9.43%NC, Public bridges in inventory (thousands): 19.2k · Poor-condition share (%): 6.76%ND, Public bridges in inventory (thousands): 4.3k · Poor-condition share (%): 10.98%OH, Public bridges in inventory (thousands): 26.7k · Poor-condition share (%): 4.74%OK, Public bridges in inventory (thousands): 22.9k · Poor-condition share (%): 7.7%OR, Public bridges in inventory (thousands): 8.3k · Poor-condition share (%): 4.61%PA, Public bridges in inventory (thousands): 23.3k · Poor-condition share (%): 12.58%PR, Public bridges in inventory (thousands): 2.4k · Poor-condition share (%): 13.92%RI, Public bridges in inventory (thousands): 0.8k · Poor-condition share (%): 15.2%SC, Public bridges in inventory (thousands): 9.5k · Poor-condition share (%): 6.17%SD, Public bridges in inventory (thousands): 5.9k · Poor-condition share (%): 16.36%TN, Public bridges in inventory (thousands): 20.4k · Poor-condition share (%): 4.41%TX, Public bridges in inventory (thousands): 56.7k · Poor-condition share (%): 1.23%UT, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 2.91%VT, Public bridges in inventory (thousands): 2.9k · Poor-condition share (%): 2.9%VI, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 29.17%VA, Public bridges in inventory (thousands): 14.1k · Poor-condition share (%): 3.39%WA, Public bridges in inventory (thousands): 8.5k · Poor-condition share (%): 5.45%WV, Public bridges in inventory (thousands): 7.3k · Poor-condition share (%): 18.64%WI, Public bridges in inventory (thousands): 14.4k · Poor-condition share (%): 6.52%WY, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 6.51%
Inventory size and Poor-condition share are different measures: Delaware has 872 bridges and a 1.3% Poor-condition share in the 2024 NBI, rank #4 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold.

Delaware 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

872 50th of 54 higher than 4 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 Delaware

The highlighted point is Delaware: 872 bridges and 1.26% in Poor condition, rank #4 of 54 jurisdictions ordered from the lowest share upward. The five jurisdictions immediately above and below Delaware on that same Poor-share ordering:

  • Arizona: 8,573 bridges · 1.15% Poor
  • Texas: 56,729 bridges · 1.23% Poor
  • Delaware: 872 bridges · 1.26% Poor
  • Georgia: 15,069 bridges · 1.59% Poor
  • District of Columbia: 257 bridges · 1.95% Poor

The full national sortable table lives on the rankings page.

Material families in Delaware

Exclusive FHWA material families across all 872 bridges in this state; continuous variants fold into the parent family. Orthogonal to the Poor-share scatter above.

Who maintains Delaware’s inventory

State agency holds 96.6% of the 872 public highway bridges filed under Delaware in the 2024 NBI, the agency-of-record split for this state, not a condition verdict.

When Delaware’s bridges were built

Pre-1950 construction accounts for 14.0% of the 872 bridges with a recorded original year in Delaware. Era bands are orthogonal to the Poor-share ranking above.

Condition Distribution

Delaware40.5%58.3%GoodFairPoor
Bridge inventory deck-condition mix - Delaware (FHWA NBI)

Delaware 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 Delaware on the same metric.

AZ

Arizona

1.15% top marginal rate
Structure
Progressive
Burden @ $100K
$8,573

TX

Texas

1.23% top marginal rate
Structure
Progressive
Burden @ $100K
$56,729
Selected

DE

Delaware

1.26% top marginal rate
Structure
Progressive
Burden @ $100K
$872

GA

Georgia

1.59% top marginal rate
Structure
Progressive
Burden @ $100K
$15,069

Bridges Needing Most Attention in Delaware

Six lowest-condition bridges in Delaware, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.

All Bridges in Delaware

POPLAR ST

Fair

Over: BROAD CREEK

LAUREL, Sussex, DE

Built 1915 Load: 5.8 t ADT: 3,164

S.W. FRONT ST

Fair

Over: MISPILLION RIVER

MILFORD, Kent, DE

Built 1900 Load: 8.4 t ADT: 99

FRONT ST

Fair

Over: NANTICOKE RIVER

SEAFORD, Sussex, DE

Built 1926 Load: 12.6 t ADT: 8,634

FOURTH STREET

Fair

Over: CHRISTINA RIVER

WILMINGTON, New Castle, DE

Built 1980 Load: 17.2 t ADT: 9,973

BRENFORD RD

Fair

Over: MASSEYS POND/LEIPSIC RIV

MASSEYS MILLPOND, Kent, DE

Built 1933 Load: 17.5 t ADT: 1,602

CAPITAL TRAIL/SR2

Fair

Over: MUDDY RUN

EAST OF NEWARK, New Castle, DE

Built 1948 Load: 18.1 t ADT: 24,998

S. WALNUT ST.

Fair

Over: CHRISTINA RIVER

WILMINGTON, New Castle, DE

Built 1957 Load: 18.5 t ADT: 14,363

I 295 N & US 40 E

Fair

Over: DELAWARE RIVER

NEW CASTLE, New Castle, DE

Built 1951 Load: 18.8 t ADT: 48,349

RISING SUN LANE

Fair

Over: BRANDYWINE CREEK

N/W WILMINGTON, New Castle, DE

Built 1928 Load: 19.8 t ADT: 2,265

SOUTH HEALD ST

Fair

Over: NORFOLK SOUTHERN

SOUTH WILMINGTON, New Castle, DE

Built 1942 Load: 19.8 t ADT: 8,515

PAPER MILL RD

Fair

Over: WHITE CLAY CREEK

NORTH NEWARK, New Castle, DE

Built 1947 Load: 20.1 t ADT: 16,955

S. WALNUT ST/US13

Fair

Over: NORFOLK SOUTHERN

SOUTH OF WILMINGTON, New Castle, DE

Built 1938 Load: 20.1 t ADT: 27,266

SR7 & SR4

Fair

Over: WHITE CLAY CREEK

STANTON, New Castle, DE

Built 1981 Load: 20.4 t ADT: 26,432

FOURTH ST

Fair

Over: CSX RAILROAD

WILMINGTON, New Castle, DE

Built 1900 Load: 20.4 t ADT: 99

I 95 RD 59

Fair

Over: BRANDYWINE CK

WILMINGTON, New Castle, DE

Built 1964 Load: 20.4 t ADT: 65,124

I 495

Fair

Over: CHRISTINA RIVER N/S RR

WILMINGTON, New Castle, DE

Built 1974 Load: 20.4 t ADT: 92,029

KIRKWOOD HWY/SR2

Fair

Over: LITTLE MILL CREEK

ELSMERE, New Castle, DE

Built 1939 Load: 20.7 t ADT: 29,701

ROCKLAND RD

Fair

Over: BRANDYWINE CREEK

ROCKLAND, New Castle, DE

Built 1933 Load: 21.1 t ADT: 3,561

SR141/BARLEY MILL

Fair

Over: BRANDYWINE CREEK RD 260

N/W WILMINGTON-GREENVILLE, New Castle, DE

Built 1951 Load: 21.1 t ADT: 24,974

DEL 896 US71 301S

Fair

Over: C&D CANAL

9 MI W OF REEDY POINT, New Castle, DE

Built 1959 Load: 21.1 t ADT: 26,840

DELAWARE RT. 9

Fair

Over: C&D CANAL

1/2 MI S OF DEL. CITY, New Castle, DE

Built 1969 Load: 21.1 t ADT: 1,203

HIGHLAND AVE

Fair

Over: SR 141

NEWPORT, New Castle, DE

Built 1976 Load: 21.4 t ADT: 99

SALEM CHURCH RD

Fair

Over: BECKS POND/BELLTOWN RUN

S/E OF NEWARK, New Castle, DE

Built 1979 Load: 21.7 t ADT: 6,297

REHOBOTH BLVD.

Fair

Over: MISPILLION RIVER

MILFORD, Kent, DE

Built 1929 Load: 21.7 t ADT: 8,098

OLD BALTIMORE PIKE

Fair

Over: TRIB. TO CHRISTINA CREEK

S. OF NEWARK, New Castle, DE

Built 2000 Load: 22.0 t ADT: 13,109

I 95

Fair

Over: CITY STREETS & AMTRAK

SOUTH OF WILMINGTON, New Castle, DE

Built 1964 Load: 22.4 t ADT: 63,420

AUGUSTINE CUTOFF

Fair

Over: BRANDYWINE CREEK

WILMINGTON, New Castle, DE

Built 1900 Load: 22.7 t ADT: 9,627

I 295 S & US 40 W

Fair

Over: DELAWARE RIVER

NEW CASTLE, New Castle, DE

Built 1968 Load: 22.7 t ADT: 50,098

SR6/WOODLAND BEACH

Fair

Over: MILL CREEK

EAST OF SMYRNA, Kent, DE

Built 1996 Load: 22.7 t ADT: 1,560

OLD CAPITAL TRAIL

Fair

Over: RED CLAY CREEK

MARSHALLTON, New Castle, DE

Built 1931 Load: 23.0 t ADT: 10,072

LIBRARY AVE/SR 72

Fair

Over: AMTRAK

NEWARK, New Castle, DE

Built 1979 Load: 23.0 t ADT: 29,899

I 495 SB

Fair

Over: I 95 NB

CHRISTIANA INTERCHANGE, New Castle, DE

Built 1965 Load: 23.0 t ADT: 26,041

SMYRNA-LEIPSIC RD

Fair

Over: LEIPSIC RIVER

LEIPSIC, Kent, DE

Built 1952 Load: 23.0 t ADT: 2,255

BURNSIDE BLVD

Fair

Over: SR 141

NORTH OF NEWPORT, New Castle, DE

Built 1976 Load: 23.3 t ADT: 100

JFK MEM HGY/I95 SB

Fair

Over: TALLEY ROAD

N.E. OF WILMINGTON, New Castle, DE

Built 1968 Load: 23.3 t ADT: 23,320

DUPONT HWY / US13N

Fair

Over: LITTLE DUCK CREEK

GARRISON LAKE, Kent, DE

Built 1934 Load: 23.3 t ADT: 14,174

BROADKILL RD/SR16

Fair

Over: BROADKILL SOUND

BROADKILL BEACH, Sussex, DE

Built 1977 Load: 23.3 t ADT: 2,331

CREEK RD/SR82

Fair

Over: RED CLAY CREEK

ASHLAND, New Castle, DE

Built 1939 Load: 23.7 t ADT: 2,428

SOUTH MARKET ST

Fair

Over: CHRISTINA RIVER

WILMINGTON, New Castle, DE

Built 1927 Load: 23.7 t ADT: 28,725

DUPONT HWY / US13S

Fair

Over: LEIPSIC RIVER

S. OF SMYRNA, Kent, DE

Built 1929 Load: 23.7 t ADT: 1,419

WHITELEYSBURG RD

Fair

Over: MARSHYHOPE DITCH

WEST OF HARRINGTON, Kent, DE

Built 1931 Load: 23.7 t ADT: 1,571

ZOAR RD.

Fair

Over: MORRIS MILL POND

NORTH OF MILLSBORO, Sussex, DE

Built 1932 Load: 23.7 t ADT: 6,149

SR 273

Fair

Over: SR 4

OGLETOWN, New Castle, DE

Built 1997 Load: 24.0 t ADT: 24,266

SOUTH LINCOLN ST

Fair

Over: CANBY PARK VIADUCT

WILMINGTON, New Castle, DE

Built 1963 Load: 24.0 t ADT: 20,027

DUPONT BLVD/US113

Fair

Over: WARTONS BRANCH

NORTH OF DAGSBORO, Sussex, DE

Built 1911 Load: 24.0 t ADT: 23,985

BASIN RD/SR 141

Fair

Over: RD 333 CENTERVILLE RD

S/W OF ELSMERE, New Castle, DE

Built 1974 Load: 24.3 t ADT: 50,659

US13/DUPONT HWGY

Fair

Over: PUNCHEON RUN

DOVER, Kent, DE

Built 1951 Load: 24.3 t ADT: 22,808

KENTON RD/SR15

Fair

Over: FORK BRANCH

SOUTH OF CHESWOLD, Kent, DE

Built 1934 Load: 24.3 t ADT: 6,183

RED MILL RD

Fair

Over: AMTRAK

EAST OF NEWARK, New Castle, DE

Built 1978 Load: 24.6 t ADT: 14,697

CHURCH RD.

Fair

Over: CHRISTINA CREEK

N/W NEWARK, New Castle, DE

Built 1968 Load: 24.6 t ADT: 446

Showing 1-50 of 872 bridges

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.

What to do with this

Use Delaware's inventory picture to drill to a county or a specific span.

  • Browse counties in Delaware 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. Delaware 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.