US Bridges

DUTCH-HARLIN-CR604 over Trenton Line (csxt)

Fair

Somerset County, New Jersey · 1.07 MI West of US206 JCT · Structure no. 1850161

Built
1926
99 years old, rebuilt 1996
Condition
Fair
inspected September 2023
Type
Girder and Floorbeam System
Steel
Length
103 ft
1 main span
Daily traffic
1,300
2023 count
Owner
Unknown
Unknown

About this bridge

DUTCH-HARLIN-CR604 over Trenton Line (csxt) is a steel girder and floorbeam system carrying DUTCH-HARLIN-CR604 over Trenton Line (csxt) in Somerset County, New Jersey. It was built in 1926 and reconstructed in 1996, so it is 99 years old, older than the New Jersey average of 58.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,300 vehicles a day, roughly 3% of them trucks, projected to reach 1,586 by 2043. The structure is 103 ft (31.4 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesDUTCH-HARLIN-CR604
CrossesTrenton Line (csxt)
Location1.07 MI West of US206 JCT
RouteCounty Highway 604
CountySomerset County
StateNew Jersey
Coordinates40.44877, -74.68199
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 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 geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment6: Equal to present minimum criteria
Operating rating68 US tons
Inventory rating41 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length103 ft (31.4 m)
Longest span101 ft (30.8 m)
Deck width26 ft (7.8 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,300 (2023)
Projected traffic1,586 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerUnknown
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$12.3 million (2023 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was DUTCH-HARLIN-CR604 over Trenton Line (csxt) built?

It was built in 1926, making it 99 years old in 2025. It was reconstructed in 1996.

What condition is DUTCH-HARLIN-CR604 over Trenton Line (csxt) in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2023.

How much traffic does DUTCH-HARLIN-CR604 over Trenton Line (csxt) carry?

About 1,300 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is DUTCH-HARLIN-CR604 over Trenton Line (csxt)?

The structure is 103 ft (31.4 m) long with a longest span of 101 ft (30.8 m) and a deck 26 ft wide.

Who owns DUTCH-HARLIN-CR604 over Trenton Line (csxt)?

It is owned by the Unknown and maintained by the State Highway Agency.