US Bridges

Nj 64 over AMTRAK

Poor

Mercer County, New Jersey · 0.22 Mi. S. of CR 571 · Structure no. 1117150

Built
1939
86 years old
Condition
Poor
inspected October 2024
Type
Girder and Floorbeam System
Steel
Length
104 ft
1 main span
Daily traffic
13,685
2024 count
Owner
Unknown
Unknown

About this bridge

Nj 64 over AMTRAK is a steel girder and floorbeam system carrying Nj 64 over AMTRAK in Mercer County, New Jersey. It was built in 1939, so it is 86 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 13,685 vehicles a day, roughly 4% of them trucks, projected to reach 16,698 by 2044. The structure is 104 ft (31.7 m) long and 53 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesNj 64
CrossesAMTRAK
Location0.22 Mi. S. of CR 571
RouteState Highway 64
CountyMercer County
StateNew Jersey
Coordinates40.31851, -74.62056
Functional classUrban Other Principal Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
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 loadH 20
Structure length104 ft (31.7 m)
Longest span103 ft (31.4 m)
Deck width53 ft (16.2 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,685 (2024)
Projected traffic16,698 by 2044
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

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$8.4 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nj 64 over AMTRAK built?

It was built in 1939, making it 86 years old in 2025.

What condition is Nj 64 over AMTRAK in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does Nj 64 over AMTRAK carry?

About 13,685 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is Nj 64 over AMTRAK?

The structure is 104 ft (31.7 m) long with a longest span of 103 ft (31.4 m) and a deck 53 ft wide.

Who owns Nj 64 over AMTRAK?

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