State profile · Below national median SD

Delaware bridge safety

Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in Delaware — drawn straight from the FHWA National Bridge Inventory.

878
Public bridges
29.5%
Good condition
1.3%
Poor condition
1.3%
Structurally deficient

Total Bridges

878

Public highway bridges in Delaware

Good Condition

29.5%

259 bridges rated 7-9

-20.5pp vs 50% benchmark

Poor Condition

1.3%

11 bridges rated 0-4

Structurally Deficient

1.3%

11 bridges flagged for repair priority

-5.7pp vs national avg 7.0%

Delaware vs national bridge condition

Delaware — Good condition share 29.5%
National avg

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

Delaware — Structurally deficient share 4.2%
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 — Delaware (FHWA NBI)

Delaware29.498861047835987%43.052391799544424%GoodFairPoorStructurally Deficient
Bridge inventory deck-condition mix — Delaware (FHWA NBI)

Delaware 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 Delaware on the same metric.

32

Nevada

1.07% top marginal rate
Structure
Progressive
Burden @ $100K
$2,152

48

Texas

1.13% top marginal rate
Structure
Progressive
Burden @ $100K
$56,740
Selected

10

Delaware

1.25% top marginal rate
Structure
Progressive
Burden @ $100K
$878

04

Arizona

1.44% top marginal rate
Structure
Progressive
Burden @ $100K
$5,640

Bridges Needing Most Attention in Delaware

Six lowest-condition bridges in Delaware, ranked by composite NBI rating. Each is inspected at least every 24 months.

All Bridges in Delaware

CORNWELL DR.

Fair

Over: WATERWAY

E OF LUMS POND STATE PARK, New Castle, DE

Built 1998 Load: 76.5 t ADT: 99

CARR RD

Fair

Over: SHELLPOT CREEK

NORTH OF WILMINGTON, New Castle, DE

Built 1934 Load: 76.5 t ADT: 1,896

GLENROCK DR

Fair

Over: SOUTH BRANCH NAAMANS CK

WEST OF CLAYMONT, New Castle, DE

Built 1958 Load: 76.8 t ADT: 99

PAPERMILL RD/SR 72

Fair

Over: PIKE CREEK

NORTH OF NEWARK, New Castle, DE

Built 1926 Load: 81.0 t ADT: 17,022

NEWPORT GAP PIKE

Fair

Over: HYDE RUN

NORTH OF STANTON, New Castle, DE

Built 1936 Load: 83.6 t ADT: 13,392

COUNTY SEAT HY/US9

Fair

Over: TYNDALL BRANCH

S/W OF GEORGETOWN, Sussex, DE

Built 1920 Load: 87.5 t ADT: 6,883

SHIPLEY RD.

Fair

Over: SHELLPOT CREEK

N/E OF WILMINGTON, New Castle, DE

Built 1991 Load: 97.2 t ADT: 9,380

BLACKBIRD LANDING

Fair

Over: BLACKBIRD CREEK

E. OF TOWNSEND, New Castle, DE

Built 1969 Load: 97.2 t ADT: 1,022

CHAMBERS ROCK RD

Good

Over: WHITE CLAY CREEK

WHITE CLAY CREEK PRESERVE, New Castle, DE

Built 1928 Load: 18.8 t ADT: 4,666

PHILADELPHIA PIKE

Good

Over: NAAMANS CREEK/HAUL ROAD

NAAMANS, New Castle, DE

Built 1997 Load: 20.4 t ADT: 13,052

LLANGOLLEN BLVD.

Good

Over: ARMY CREEK

W. OF NEW CASTLE, New Castle, DE

Built 1975 Load: 20.4 t ADT: 3,510

SEASHORE HIGHWAY

Good

Over: COLLINS MILL POND

EAST OF BRIDGEVILLE, Sussex, DE

Built 1922 Load: 21.7 t ADT: 10,964

HARMONY RD

Good

Over: AMTRAK

EAST OF NEWARK, New Castle, DE

Built 1972 Load: 22.7 t ADT: 20,228

MAIN ST. / SR 26

Good

Over: PEPPER CREEK

DAGSBORO, Sussex, DE

Built 1988 Load: 22.7 t ADT: 14,165

KILLENS POND RD

Good

Over: KILLEN POND SPILLWAY

S.E. OF FELTON, Kent, DE

Built 1969 Load: 23.7 t ADT: 2,903

WELDIN RD

Good

Over: TURKEY RUN

E. OF BLUE BALL AREA, New Castle, DE

Built 1999 Load: 24.3 t ADT: 4,484

GRANVILLE RD

Good

Over: PIKE CREEK

WEST OF MERMAID, New Castle, DE

Built 1970 Load: 24.3 t ADT: 796

KIRKWOOD HWY/SR2

Good

Over: TRIB TO LITTLE MILL CRK

ELSMERE, New Castle, DE

Built 1949 Load: 26.6 t ADT: 21,909

12TH ST

Good

Over: NORFOLK SOUTHERN

WILMINGTON, New Castle, DE

Built 1977 Load: 26.6 t ADT: 5,790

SR 18

Good

Over: CLEAR BROOK

EAST OF CANNON, Sussex, DE

Built 1941 Load: 26.9 t ADT: 2,203

MILL CREEK RD

Good

Over: MILL CREEK

SOUTH OF HOCKESSIN, New Castle, DE

Built 1984 Load: 27.2 t ADT: 2,272

HERCULES RD

Good

Over: HYDE RUN

S/W OF DE NAT. CNTRY CLUB, New Castle, DE

Built 1971 Load: 27.5 t ADT: 7,799

1ST STREET

Good

Over: LAKE GERAR

REHOBOTH BEACH, Sussex, DE

Built 2008 Load: 27.5 t ADT: 99

HICKMAN RD / SR16

Good

Over: MARSHYHOPE CREEK

ADAMSVILLE, Kent, DE

Built 1958 Load: 27.9 t ADT: 4,287

SCARBOROUGH RD

Good

Over: NORFOLK SOUTHERN

NORTH OF DOVER, Kent, DE

Built 1999 Load: 27.9 t ADT: 14,877

DAGSBORO RD

Good

Over: WHARTON'S BRANCH

S/E OF MILLSBORO, Sussex, DE

Built 1940 Load: 27.9 t ADT: 13,299

KENTON RD

Good

Over: CAHOON BROOK

WEST DOVER, Kent, DE

Built 1934 Load: 28.2 t ADT: 7,058

DUPONT HWY/US13

Good

Over: MILL CREEK

SMYRNA, Kent, DE

Built 1940 Load: 28.8 t ADT: 25,313

US 13 N & SR 20 W

Good

Over: NANTICOKE RIVER

S/W SEAFORD, Sussex, DE

Built 1951 Load: 29.2 t ADT: 16,974

US 13 S & SR 20 E

Good

Over: NANTICOKE RIVER

S/W SEAFORD, Sussex, DE

Built 1951 Load: 29.2 t ADT: 16,974

BEAR HOLE RD

Good

Over: BEARHOLE DITCH

EAST OF SELBYVILLE, Sussex, DE

Built 2010 Load: 29.2 t ADT: 416

OLD SHARPTOWN RD

Good

Over: COD BRANCH

S/W OF BETHEL, Sussex, DE

Built 1985 Load: 29.8 t ADT: 725

MT ZION CHURCH RD

Good

Over: DIRICKSON CREEK

JOHNSON, Sussex, DE

Built 1968 Load: 29.8 t ADT: 5,731

GRUBB RD

Good

Over: TRIB. TO NAAMANS CREEK

WEST OF ARDEN, New Castle, DE

Built 1994 Load: 30.1 t ADT: 9,527

SR71 / RED LION RD

Good

Over: RED LION CREEK

RED LION, New Castle, DE

Built 2004 Load: 30.1 t ADT: 3,589

N. MAIN ST / RD 65

Good

Over: DUCK CREEK

NORTH SMYRNA, Kent, DE

Built 1960 Load: 30.5 t ADT: 3,626

CHOPTANK RD.

Good

Over: BACK CREEK

SOUTH OF SUMMIT BRIDGE, New Castle, DE

Built 2002 Load: 30.5 t ADT: 7,262

COACHMANS RD

Good

Over: SHELLPOT CREEK

S/E OF TALLEYVILLE, New Castle, DE

Built 1976 Load: 30.8 t ADT: 99

DEER FOREST RD.

Good

Over: GRAVELLY BRANCH

N.W. OF GEORGETOWN, Sussex, DE

Built 1996 Load: 30.8 t ADT: 493

MILFORD-HARRINGTON

Good

Over: BROWNS BRANCH

EAST OF HARRINGTON, Kent, DE

Built 1922 Load: 31.1 t ADT: 7,277

AUBURN HEIGHTS LOT

Good

Over: MILL RACE

YORKLYNN, New Castle, DE

Built 2019 Load: 31.1 t ADT: 99

SR 72, POSSUM PARK

Good

Over: MIDDLE RUN

EAST OF NEWARK, New Castle, DE

Built 1953 Load: 31.1 t ADT: 14,399

BEAVER DAM RD.

Good

Over: TRIB. TO BRANDYWINE CRK

N/E OF CENTERVILLE, New Castle, DE

Built 1962 Load: 31.4 t ADT: 1,867

OTTS CHAPEL RD

Good

Over: PERSIMMON RUN

S.W. OF NEWARK, New Castle, DE

Built 2010 Load: 31.4 t ADT: 18,107

SMYRNA LANDING RD

Good

Over: DUCK CREEK

EAST OF SMYRNA, Kent, DE

Built 1998 Load: 31.8 t ADT: 772

FOX HOLE RD

Good

Over: CULBRETH MARSH DITCH

S.E. OF MARYDEL, Kent, DE

Built 1974 Load: 31.8 t ADT: 336

CHURCH ST

Good

Over: MISPILLION RIVER

MILFORD, Kent, DE

Built 1994 Load: 31.8 t ADT: 99

BALTIMORE AVE.

Good

Over: DERRICKSON RUN

TOWN OF ELSMERE, New Castle, DE

Built 1998 Load: 31.8 t ADT: 99

LIGHTHOUSE RD/SR54

Good

Over: TIDAL PONDS

WEST OF FENWICK ISLAND, Sussex, DE

Built 2003 Load: 31.8 t ADT: 13,785

LIGHTHOUSE RD/SR54

Good

Over: TIDAL PONDS

WEST OF FENWICK ISLAND, Sussex, DE

Built 2003 Load: 31.8 t ADT: 13,785

Showing 601-650 of 878 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.