US Bridges

Harmony RD over AMTRAK

Good

New Castle County, Delaware · East of Newark · Structure no. 1245 355

Built
1972
53 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
221 ft
3 main spans
Daily traffic
20,228
2022 count
Owner
State
State Highway Agency

About this bridge

Harmony RD over AMTRAK is a steel continuous stringer/multi-beam or girder carrying Harmony RD over AMTRAK in New Castle County, Delaware. It was built in 1972, so it is 53 years old, older than the Delaware average of 47.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 20,228 vehicles a day, roughly 8% of them trucks, projected to reach 28,912 by 2042. The structure is 221 ft (67.5 m) long and 54 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesHarmony RD
CrossesAMTRAK
LocationEast of Newark
RouteCounty Highway 355
CountyNew Castle County
StateDelaware
Coordinates39.69021, -75.68704
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32.5 US tons
Inventory rating25 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length221 ft (67.5 m)
Longest span94 ft (28.8 m)
Deck width54 ft (16.5 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,228 (2022)
Projected traffic28,912 by 2042
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$848,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Harmony RD over AMTRAK built?

It was built in 1972, making it 53 years old in 2025.

What condition is Harmony RD over AMTRAK in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2023.

How much traffic does Harmony RD over AMTRAK carry?

About 20,228 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is Harmony RD over AMTRAK?

The structure is 221 ft (67.5 m) long with a longest span of 94 ft (28.8 m) and a deck 54 ft wide.

Who owns Harmony RD over AMTRAK?

It is owned by the State Highway Agency.