US Bridges

Calhoun Street over Nj 29

Fair

Mercer County, New Jersey · 1.0 MI NW of 129 JCT · Structure no. 1106150

Built
1955
70 years old
Condition
Fair
inspected December 2023
Type
Frame
Concrete
Length
99 ft
1 main span
Daily traffic
8,847
2023 count
Owner
State
State Highway Agency

About this bridge

Calhoun Street over Nj 29 is a concrete frame carrying Calhoun Street over Nj 29 in Mercer County, New Jersey. It was built in 1955, so it is 70 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 6 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 8,847 vehicles a day, roughly 4% of them trucks, projected to reach 10,795 by 2043. The structure is 99 ft (30.2 m) long and 62 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesCalhoun Street
CrossesNj 29
Location1.0 MI NW of 129 JCT
RouteCounty Highway 653
Coordinates40.22133, -74.77555
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating68 US tons
Inventory rating40 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length99 ft (30.2 m)
Longest span88 ft (26.8 m)
Deck width62 ft (18.9 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,847 (2023)
Projected traffic10,795 by 2043
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$3.4 million (2023 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Calhoun Street over Nj 29 built?

It was built in 1955, making it 70 years old in 2025.

What condition is Calhoun Street over Nj 29 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 December 2023.

How much traffic does Calhoun Street over Nj 29 carry?

About 8,847 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Calhoun Street over Nj 29?

The structure is 99 ft (30.2 m) long with a longest span of 88 ft (26.8 m) and a deck 62 ft wide.

Who owns Calhoun Street over Nj 29?

It is owned by the State Highway Agency.