US Bridges

Pennington Road over Delaware River

FairPosted for load

Mercer County, New Jersey · Pennington Road · Structure no. 3300100

Built
1904
121 years old, rebuilt 2010
Condition
Fair
inspected March 2024
Type
Truss - Thru
Steel
Length
877 ft
6 main spans
Daily traffic
7,521
2024 count
Owner
Toll Authority
Local Toll Authority

About this bridge

Pennington Road over Delaware River is a steel truss - thru carrying Pennington Road over Delaware River in Mercer County, New Jersey. It was built in 1904 and reconstructed in 2010, so it is 121 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. Its operating status is: posted for load restriction.

It carries about 7,521 vehicles a day, projected to reach 9,177 by 2044. The structure is 877 ft (267.3 m) long and 16 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesPennington Road
CrossesDelaware River
LocationPennington Road
RouteState Highway 546
CountyMercer County
StateNew Jersey
Coordinates40.29525, -74.86827
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating9.1 US tons
Inventory rating6 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckOpen grating
Main spans6
Design loadUnknown
Structure length877 ft (267.3 m)
Longest span143 ft (43.6 m)
Deck width16 ft (4.8 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deck14 ft (4.3 m)

Traffic and service

Average daily traffic7,521 (2024)
Projected traffic9,177 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerLocal Toll Authority
Maintained byLocal Toll Authority
Historic statusEligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Pennington Road over Delaware River built?

It was built in 1904, making it 121 years old in 2025. It was reconstructed in 2010.

What condition is Pennington Road over Delaware River 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 March 2024.

How much traffic does Pennington Road over Delaware River carry?

About 7,521 vehicles per day (2024 count).

How long is Pennington Road over Delaware River?

The structure is 877 ft (267.3 m) long with a longest span of 143 ft (43.6 m) and a deck 16 ft wide.

Who owns Pennington Road over Delaware River?

It is owned by the Local Toll Authority.