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

KIRKWOOD/ST GEORGE

Good

Over: SR1

ST. GEORGES, New Castle, DE

Built 1995 Load: 39.9 t ADT: 2,092

MAYFIELD FALLS

Good

Over: TRIB TO MUDDY RUN

WEST OF GLASGOW, New Castle, DE

Built 2022 Load: 39.9 t ADT: 99

BAYSIDE DR. / SR9

Good

Over: BAY RD. / US113/SR1

S. OF AIR FORCE BASE, Kent, DE

Built 2009 Load: 39.9 t ADT: 2,123

IRISH HILL RD.

Good

Over: THORNDYK DITCH

S.W. OF MAGNOLIA, Kent, DE

Built 2019 Load: 39.9 t ADT: 2,191

TWIN WILLOWS RD.

Good

Over: SR 1

EAST OF BRENFORD, Kent, DE

Built 1992 Load: 39.9 t ADT: 410

HOLLERING HILL RD

Good

Over: COW MARSH CREEK

WEST OF WOODSIDE, Kent, DE

Built 2015 Load: 39.9 t ADT: 280

SR 9 / RIVER RD

Good

Over: ARMY CREEK

SOUTH OF NEW CASTLE, New Castle, DE

Built 1993 Load: 40.2 t ADT: 6,460

VALLEY RD

Good

Over: MILL CREEK

S.W. OF HOCKESSIN, New Castle, DE

Built 1994 Load: 40.2 t ADT: 10,078

SMYRNA-LEIPSIC RD

Good

Over: SR 1

SOUTH SMYRNA, Kent, DE

Built 1991 Load: 40.2 t ADT: 1,990

THOMPSONVILLE RD

Good

Over: FISHING BRANCH

NORTH OF MILFORD, Kent, DE

Built 1996 Load: 40.2 t ADT: 1,928

US301 RAMP F

Good

Over: SANDY BRANCH

WEST OF MIDDLETOWN, New Castle, DE

Built 2018 Load: 40.5 t ADT: 650

I 495 NB

Good

Over: 84" SEWER PIPE

WILMINGTON, New Castle, DE

Built 1976 Load: 40.5 t ADT: 35,603

I 495 SB

Good

Over: 84"PIPE/DRAINAGE SWALE

WILMINGTON, New Castle, DE

Built 1976 Load: 40.5 t ADT: 51,844

BROWNSVILLE RD

Good

Over: MARSHYHOPE CREEK

WEST OF HARRINGTON, Kent, DE

Built 2022 Load: 40.5 t ADT: 189

SHELL BRIDGE RD.

Good

Over: TRIB OF BROAD CREEK

S. OF BETHEL, Sussex, DE

Built 1999 Load: 40.5 t ADT: 978

MCKEE RD.

Good

Over: FORK BRANCH

NORTH DOVER, Kent, DE

Built 1986 Load: 40.8 t ADT: 5,505

OLD FURNACE RD

Good

Over: DEEP CREEK

EAST OF SEAFORD, Sussex, DE

Built 2010 Load: 40.8 t ADT: 3,412

NEWPORT RD.

Good

Over: CSX

N/W OF NEWPORT, New Castle, DE

Built 2012 Load: 41.1 t ADT: 3,224

I95NB - SR7NB RAMP

Good

Over: STANTON CHRISTIANA RD

CHRISTIANA MALL, New Castle, DE

Built 2014 Load: 41.1 t ADT: 5,556

US113S/DUPONT BLVD

Good

Over: HAVEN LAKE

WEST MILFORD, Kent, DE

Built 1963 Load: 41.1 t ADT: 14,590

US301 SB

Good

Over: TRIB TO SANDY BRANCH

WEST OF MIDDLETOWN, New Castle, DE

Built 2018 Load: 41.5 t ADT: 5,811

BASIN RD/SR 141 SB

Good

Over: I 95 & 6089

NEWPORT, New Castle, DE

Built 2020 Load: 41.5 t ADT: 61,997

RD 357

Good

Over: SR 1 N&S

MAIN GATE DAFB, Kent, DE

Built 1998 Load: 41.5 t ADT: 13,847

SUNNYSIDE RD.

Good

Over: GUM BRANCH

EAST OF BRIDGEVILLE, Sussex, DE

Built 2019 Load: 41.5 t ADT: 457

SR1 NORTHBOUND

Good

Over: CHRISTINA RIVER

EAST OF CHRISTIANA, New Castle, DE

Built 1992 Load: 41.8 t ADT: 33,277

KOREAN WAR MEM HGY

Good

Over: CHRISTINA RIVER

NORTH OF CHRISTIANA, New Castle, DE

Built 1992 Load: 41.8 t ADT: 43,443

SR273/OGLETOWN RD.

Good

Over: COOL RUN

OLGETOWN, New Castle, DE

Built 1997 Load: 41.8 t ADT: 12,857

SR273/OGLETOWN RD.

Good

Over: COOL RUN

OGLETOWN, New Castle, DE

Built 1997 Load: 41.8 t ADT: 12,857

KOREAN VET MEM HWY

Good

Over: BLACKBIRD CREEK

S.E. OF TOWNSEND, New Castle, DE

Built 2003 Load: 41.8 t ADT: 21,017

KOREAN VET MEM HWY

Good

Over: BLACKBIRD CREEK

S/E OF TOWNSEND, New Castle, DE

Built 2003 Load: 41.8 t ADT: 21,017

SR1 SB

Good

Over: BOWERS BEACH RD

LITTLE HEAVEN, Kent, DE

Built 2019 Load: 41.8 t ADT: 22,305

SR1 NB

Good

Over: BOWERS BEACH RD

LITTLE HEAVEN, Kent, DE

Built 2019 Load: 41.8 t ADT: 22,305

ROBINSONVILLE RD

Good

Over: LOVE CREEK

SOUTH OF NASSUA, Sussex, DE

Built 2016 Load: 41.8 t ADT: 5,492

GUYENCOURT RD

Good

Over: WATERWAY

S/E OF CENTREVILLE, New Castle, DE

Built 2011 Load: 42.1 t ADT: 308

SANDY BEND RD

Good

Over: TAPPAHANNA DITCH

EAST OF MARYDEL, Kent, DE

Built 1957 Load: 42.1 t ADT: 1,404

SR 1 NORTHBOUND

Good

Over: DRAGON CREEK

N/W OF ST. GEORGES, New Castle, DE

Built 1995 Load: 42.4 t ADT: 36,078

SR 1 SB

Good

Over: DRAGON CREEK

N/W OF ST. GEORGES, New Castle, DE

Built 1995 Load: 42.4 t ADT: 36,078

KOREAN VET MEM HWY

Good

Over: DUPONT PKY&SANDOM BRNCH

BLACKBIRD AREA, New Castle, DE

Built 2003 Load: 42.4 t ADT: 21,017

PADDOCK RD.

Good

Over: SR 1

NORTH OF SMYRNA, New Castle, DE

Built 1990 Load: 42.8 t ADT: 3,520

PONDEROSA DR

Good

Over: BEAVER GUT DITCH

NORTH OF LITTLE HEAVEN, Kent, DE

Built 1999 Load: 42.8 t ADT: 1,508

PUNCHEON RUN

Good

Over: ST. JONES RIVER

SOUTH DOVER, Kent, DE

Built 2000 Load: 42.8 t ADT: 6,279

PUNCHEON RUN CONNE

Good

Over: ST JONES RIVER

SOUTH DOVER, Kent, DE

Built 2000 Load: 42.8 t ADT: 6,279

RD 206

Good

Over: SR 1

SOUTH OF MILFORD, Sussex, DE

Built 2014 Load: 42.8 t ADT: 3,358

SR NB/COASTAL HGY

Good

Over: WAPLES POND

NORTH OF MILTON, Sussex, DE

Built 2003 Load: 42.8 t ADT: 9,151

SR 1

Good

Over: SR7 / BEAR-CORBIT RD.

NORTH OF WRANGLE HILL, New Castle, DE

Built 1995 Load: 43.1 t ADT: 38,437

DUPONT HWY SB

Good

Over: MURDERKILL RIVER

SOUTH OF FELTON, Kent, DE

Built 1920 Load: 43.1 t ADT: 12,269

TUCKERS RD

Good

Over: TOMS DAM BRANCH

SE OF GREENWOOD, Sussex, DE

Built 2014 Load: 43.4 t ADT: 149

GREENBANK RD

Good

Over: RED CLAY CREEK

N.W. OF PRICES CORNER, New Castle, DE

Built 1975 Load: 43.7 t ADT: 9,704

ROAD A

Good

Over: SR1

CHRISTIANA FASHION CENTER, New Castle, DE

Built 2020 Load: 43.7 t ADT: 4,556

I95SB - SR1SB RAMP

Good

Over: I95 JFK MEM HWY

WEST OF CHRISTIANA MALL, New Castle, DE

Built 2014 Load: 43.7 t ADT: 29,239

Showing 701-750 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.