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

COASTAL HGWY/SR1

Fair

Over: MISPILLION RIVER

MILFORD, Sussex, DE

Built 1971 Load: 28.2 t ADT: 12,269

BIG STONE BEACH RD

Fair

Over: FISHING BRANCH

NORTH OF MILFORD, Kent, DE

Built 1990 Load: 28.5 t ADT: 562

SR9/FLEMINGS LAND

Fair

Over: SMYRNA RIVER

FLEMINGS LANDING, New Castle, DE

Built 1991 Load: 28.5 t ADT: 534

S. COLLEGE AVE. SB

Fair

Over: CHRISTINA CREEK

SOUTH NEWARK, New Castle, DE

Built 1970 Load: 28.5 t ADT: 17,054

COVERDALE RD.

Fair

Over: GRAVELLY FORK

N.E.OF SEAFORD, Sussex, DE

Built 1983 Load: 28.5 t ADT: 2,025

CENTRAL AVE

Fair

Over: ASSAWOMAN CANAL

NORTH OCEAN VIEW, Sussex, DE

Built 1985 Load: 28.5 t ADT: 7,970

YORKLYN RD

Fair

Over: RED CLAY CREEK

YORKLYN, New Castle, DE

Built 1929 Load: 28.8 t ADT: 4,402

NEWPORT GAP PK

Fair

Over: HYDE RUN

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

Built 1992 Load: 28.8 t ADT: 13,309

MARL PIT RD

Fair

Over: DOVE NEST BRANCH

N.W. OF ODESSA, New Castle, DE

Built 1990 Load: 28.8 t ADT: 2,049

COASTAL HGWY/SR1NB

Fair

Over: PED PATH

NASSAU, Sussex, DE

Built 1967 Load: 28.8 t ADT: 35,563

COASTAL HWY/SR1 SB

Fair

Over: PED PATH

NASSAU, Sussex, DE

Built 1967 Load: 28.8 t ADT: 35,563

MILL CREEK RD

Fair

Over: MILL CREEK

SOUTH OF HOCKESSIN, New Castle, DE

Built 1976 Load: 29.2 t ADT: 1,232

UNDERWOODS CORNER

Fair

Over: JORDAN BRANCH

WEST OF KENTON, Kent, DE

Built 1964 Load: 29.5 t ADT: 756

SR 896 S TO I 95 S

Fair

Over: CHRISTINA CREEK

SOUTH NEWARK, New Castle, DE

Built 1970 Load: 29.5 t ADT: 862

BEACH HGWY / SR 16

Fair

Over: NANTICOKE RIVER

EAST OF GREENWOOD, Sussex, DE

Built 1936 Load: 29.5 t ADT: 9,027

BETHEL RD.

Fair

Over: BROAD CREEK

BETHEL, Sussex, DE

Built 1968 Load: 29.5 t ADT: 2,247

US 113 & SR1 SB

Fair

Over: MURDERKILL RIVER

FREDERICA BYPASS, Kent, DE

Built 1965 Load: 29.8 t ADT: 22,753

US113 & SR1 NB

Fair

Over: MURDERKILL RIVER

FREDERICA BYPASS, Kent, DE

Built 1965 Load: 29.8 t ADT: 22,490

LOOCKERMAN ST

Fair

Over: ST. JONES RIVER

DOVER, Kent, DE

Built 1934 Load: 29.8 t ADT: 7,666

RIVER RD / SR9

Fair

Over: RED LION CREEK

N/W OF DELAWARE CITY, New Castle, DE

Built 1966 Load: 29.8 t ADT: 4,723

FOULK RD / SR261

Fair

Over: MATSON RUN

NORTH OF WILMINGTON, New Castle, DE

Built 1958 Load: 30.1 t ADT: 14,099

OLD BALTIMORE PIKE

Fair

Over: CHRISTINA CREEK

S. OF NEWARK, New Castle, DE

Built 1922 Load: 30.1 t ADT: 13,109

NORTH MARKET ST

Fair

Over: BRANDYWINE CREEK

WILMINGTON, New Castle, DE

Built 1928 Load: 30.1 t ADT: 10,601

SOUTH PARK DR

Fair

Over: MILL RACE

BRANDYWINE PARK, New Castle, DE

Built 1978 Load: 30.1 t ADT: 2,080

STILL RD

Fair

Over: CHOPTANK RIVER

SOUTH OF MARYDEL, Kent, DE

Built 2000 Load: 30.5 t ADT: 148

MERMAID STONEY BAT

Fair

Over: MILL CREEK

EAST OF MERMAID, New Castle, DE

Built 1969 Load: 30.5 t ADT: 9,364

KIRKWOOD HWY/SR2

Fair

Over: PIKE CREEK

W. OF DELAWARE PARK, New Castle, DE

Built 1948 Load: 30.5 t ADT: 34,598

KIRKWOOD HWY/SR2

Fair

Over: RED CLAY CREEK & RR

CRANSTON HEIGHTS, New Castle, DE

Built 1940 Load: 30.5 t ADT: 21,575

DUPONT HWY/US13

Fair

Over: ARMY CREEK

SOUTH OF NEW CASTLE, New Castle, DE

Built 1922 Load: 30.5 t ADT: 47,960

SEASHORE HY/SR404

Fair

Over: MARSHYHOPE CREEK

WEST OF GREENWOOD, Sussex, DE

Built 1958 Load: 30.5 t ADT: 11,755

WASHINGTON ST EXT

Fair

Over: SHELLPOT CREEK

N.E. OF WILMINGTON, New Castle, DE

Built 1963 Load: 30.8 t ADT: 5,212

OLD CAPITOL TRAIL

Fair

Over: CALF RUN

KIAMENSI, New Castle, DE

Built 2003 Load: 30.8 t ADT: 8,358

SAVANNAH RD/US9

Fair

Over: LEWES-REHOBOTH CANAL

LEWES, Sussex, DE

Built 1983 Load: 31.1 t ADT: 7,657

MIDDLEFORD RD

Fair

Over: TRIB. OF NANTICOKE RIVER

SEAFORD, Sussex, DE

Built 1954 Load: 31.1 t ADT: 7,838

US 13 N & SR 20 W

Fair

Over: WILLIAMS POND

S/E OF SEAFORD, Sussex, DE

Built 1952 Load: 31.1 t ADT: 18,487

US 13 S & SR 20 E

Fair

Over: WILLIAMS POND

EAST OF SEAFORD, Sussex, DE

Built 1952 Load: 31.1 t ADT: 16,698

KIRKWOOD HWY/SR2

Fair

Over: MILL CREEK

N/W OF STANTON, New Castle, DE

Built 1949 Load: 31.4 t ADT: 32,691

CHRISTINA PARKWAY

Fair

Over: CHRISTINA CREEK

NEWARK, New Castle, DE

Built 1980 Load: 31.4 t ADT: 17,131

LAUREL RD

Fair

Over: JAMES BRANCH

EAST OF LAUREL ON SR24, Sussex, DE

Built 1920 Load: 31.4 t ADT: 6,064

SCARBOROUGH RD

Fair

Over: FORK BRANCH

NORTH OF DOVER, Kent, DE

Built 1999 Load: 31.8 t ADT: 14,877

HOPKINS RD.

Fair

Over: WHITE CLAY CREEK

NORTH OF NEWARK, New Castle, DE

Built 1991 Load: 31.8 t ADT: 4,756

UNION CHURCH RD.

Fair

Over: BEAVER BRANCH

E. OF TOWNSEND, New Castle, DE

Built 1968 Load: 31.8 t ADT: 254

NORTHEAST BLVD

Fair

Over: BRANDYWINE RIVER

WILMINGTON, New Castle, DE

Built 1932 Load: 31.8 t ADT: 17,243

I 495 SB

Fair

Over: N/S RR -ABANDONED

NEWPORT, New Castle, DE

Built 1965 Load: 31.8 t ADT: 30,758

I 495 NB

Fair

Over: Pedestrian Path

NEWPORT, New Castle, DE

Built 1965 Load: 31.8 t ADT: 39,655

MAIN STREET/SR4

Fair

Over: CALF RUN

STANTON, New Castle, DE

Built 1967 Load: 32.1 t ADT: 17,387

I95 NB/JFK MEM HGY

Fair

Over: CHRISTINA CREEK

SOUTH NEWARK, New Castle, DE

Built 1962 Load: 32.1 t ADT: 73,828

ANDREWVILLE RD

Fair

Over: MARSHYHOPE CREEK

N/W OF ANDREWVILLE, Kent, DE

Built 1969 Load: 32.4 t ADT: 395

BROCKOMBRIDGE RD

Fair

Over: TRIB.MURDERKILL RIVER

SOUTH OF BOWERS BEACH, Kent, DE

Built 1994 Load: 32.4 t ADT: 35

OLD POSSUM PARK RD

Fair

Over: MIDDLE RUN

EAST OF NEWARK, New Castle, DE

Built 2000 Load: 32.4 t ADT: 279

Showing 301-350 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.