New Castle County, DE

533 public highway bridges

New Castle County Bridge Snapshot

New Castle County, Delaware contains 533 public highway bridges in the FHWA National Bridge Inventory. Roughly 22.9% are rated “Good,” 41.8% “Fair,” 0.9% “Poor,” and 0.9% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in DE are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

533

Total Bridges

22.9%

Good

0.9%

Poor

0.9%

Structurally Deficient

Condition Distribution

Good

22.9% (122)

Fair

41.8% (223)

Poor

0.9% (5)

SD

0.9% (5)

All Bridges (533)

Sort:

I 295 SB

Over: US13 & I295S-US13SB RAMP

FARNHURST, New Castle, DE

Built 1958 ADT: 10,361

NEW CASTLE AVE.

Over: I 295 NB RD 56

NEW CASTLE, New Castle, DE

Built 1965 ADT: 63,771

NEW CASTLE AVE/SR9

Over: I 295 SB RD 56

NEW CASTLE, New Castle, DE

Built 1965 ADT: 63,771

I 95 NB

Over: I 95, I 495 S TO I 295 N

CHRISTIANA INTERCHANGE, New Castle, DE

Built 1966 ADT: 12,546

I 95 NB

Over: I 295 SB

CHRISTIANA INTERCHANGE, New Castle, DE

Built 1959 ADT: 47,378

RAMP 6107

Over: I 295 SB

CHRISTIANA INTERCHANGE, New Castle, DE

Built 1960 ADT: 95,755

I 95

Over: CITY STREETS & AMTRAK

SOUTH OF WILMINGTON, New Castle, DE

Built 1964 ADT: 99

I 95 NB

Over: SR 4

SOUTH WILMINGTON VIADUCT, New Castle, DE

Built 1964 ADT: 5,929

I 95 SB

Over: SR 4 & SR 48

SOUTH WILMINGTON VIADUCT, New Castle, DE

Built 1964 ADT: 14,121

I 95 NB TO SR 4

Over: LIBERTY STREET

WILMINGTON, New Castle, DE

Built 1964 ADT: 100

SR 48 TO I 95 S

Over: SR 48 EB RD 237 LAN AV

WILMINGTON, New Castle, DE

Built 2020 ADT: 17,769

SIXTH ST

Over: I 95, RAMP 6154

WILMINGTON, New Castle, DE

Built 1964 ADT: 62,012

SEVENTH ST

Over: I 95 & RAMP 6152

WILMINGTON, New Castle, DE

Built 1964 ADT: 47,468

EIGHTH ST

Over: I 95 & RAMP 6152

WILMINGTON, New Castle, DE

Built 1964 ADT: 10,851

NINTH ST

Over: I 95

WILMINGTON, New Castle, DE

Built 1964 ADT: 47,468

10th STREET

Over: I 95 & RAMP 6163

WILMINGTON, New Castle, DE

Built 1964 ADT: 47,468

RAMP I95SB TO 11TH

Over: I 95 & RAMP 6169

WILMINGTON, New Castle, DE

Built 1969 ADT: 2,567

DELAWARE AVE

Over: I 95 & RAMP 6167

WILMINGTON, New Castle, DE

Built 1964 ADT: 2,567

MLK BLD TO I 95 N

Over: SECOND ST & ADAMS ST

WILMINGTON, New Castle, DE

Built 1976 ADT: 8,228

RAMP TO I 95 S

Over: MLK BLVD & ADAMS ST

WILMINGTON, New Castle, DE

Built 1979 ADT: 4,516

MLK BLD TO I 95 S

Over: SR 4, MARYLAND AVE.

WILMINGTON, New Castle, DE

Built 1980 ADT: 15,249

MLK BLVD

Over: MONROE ST & MADISON ST

WILMINGTON, New Castle, DE

Built 1976 ADT: 100

I 95 RD 59

Over: BRANDYWINE CK

WILMINGTON, New Castle, DE

Built 1964 ADT: 99

EIGHTEENTH STREET

Over: I 95

WILMINGTON-SALESIANUM HS, New Castle, DE

Built 1966 ADT: 63,678

CSX RAILROAD

Over: I 95

N. WILMINGTON, New Castle, DE

Built 1969 ADT: 18,857

RAMP; I95NB-US202N

Over: CONCORD PIKE

NORTH OF WILMINGTON, New Castle, DE

Built 2013 ADT: 37,016

I95 NB TO US202 NB

Over: I95 SB RAMP TO SB 202

NORTH OF WILMINGTON, New Castle, DE

Built 2013 ADT: 1,210

I 95 NB TO US 202N

Over: I 95

NORTH OF WILMINGTON, New Castle, DE

Built 2013 ADT: 46,639

JFK MEM HGY/I95 SB

Over: TALLEY ROAD

N.E. OF WILMINGTON, New Castle, DE

Built 1968 ADT: 3,225

JFK MEM HGY/I95 NB

Over: TALLEY ROAD

N. E. OF WILMINGTON, New Castle, DE

Built 1968 ADT: 3,225

I 95 NB

Over: SHIPLEY RD

N.E. OF WILMINGTON, New Castle, DE

Built 1968 ADT: 9,380

I 95 SB

Over: SHIPLEY RD

N.E. OF WILMINGTON, New Castle, DE

Built 1968 ADT: 8,687

I 95 NB

Over: SR 3, MARSH RD

N.E. OF WILMINGTON, New Castle, DE

Built 1967 ADT: 10,804

I 95 SB

Over: SR 3, MARSH RD

N.E. OF WILMINGTON, New Castle, DE

Built 1967 ADT: 10,804

I 95 NB

Over: SILVERSIDE RD

SOUTH OF NAAMANS, New Castle, DE

Built 1967 ADT: 9,029

I 95 SB

Over: SILVERSIDE RD

S. OF ARDEN, New Castle, DE

Built 1967 ADT: 9,749

HARVEY RD

Over: I 95

N.E. OF WILMINGTON, New Castle, DE

Built 1967 ADT: 60,878

I 95 SB

Over: GLENROCK DRIVE

S/E OF ARDEN, New Castle, DE

Built 1966 ADT: 99

I 95 NB

Over: GLENROCK DRIVE

S/E OF ARDEN, New Castle, DE

Built 1966 ADT: 99

I 95 SB

Over: DARLEY RD

NORTH OF CLAYMONT, New Castle, DE

Built 1966 ADT: 6,438

I 95 NB

Over: DARLEY RD

NORTH OF CLAYMONT, New Castle, DE

Built 1966 ADT: 6,438

I 495 SB

Over: I 95 & RAMP 6202

N. OF CLAYMONT, New Castle, DE

Built 1966 ADT: 51,701

NAAMANS RD/SR92

Over: I 495 SOUTHBOUND

NORTH OF CLAYMONT, New Castle, DE

Built 1966 ADT: 33,884

NAAMANS RD/SR92

Over: I 95/JOHN F. KENNEDY

NORTH OF CLAYMONT, New Castle, DE

Built 1966 ADT: 33,884

RAMP 6202

Over: I 495 NB

WEST OF CLAYMONT, New Castle, DE

Built 1966 ADT: 67,768

I 495 SB

Over: I 95 NB

CHRISTIANA INTERCHANGE, New Castle, DE

Built 1965 ADT: 95,983

I 495 SB

Over: RAMP 6217

SOUTH OF WILMINGTON, New Castle, DE

Built 1975 ADT: 8,689

I 495 NB

Over: RAMP 6217

SOUTH OF WILMINGTON, New Castle, DE

Built 1975 ADT: 8,689

I 495 SB

Over: US 13

S. OF WILMINGTON, New Castle, DE

Built 1975 ADT: 29,580

I 495 NB

Over: US 13

SOUTH OF WILMINGTON, New Castle, DE

Built 1975 ADT: 29,580

Read our methodology — how this data is sourced, computed, and verified.

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 6, 2026