US Bridges

Nj 29 NB over Nj 29 Ramp Ci

Fair

Mercer County, New Jersey · 0.61 MI N of JCT Rt 1 · Structure no. 1106155

Built
1969
56 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
92 ft
1 main span
Daily traffic
22,131
2024 count
Owner
State
State Highway Agency

About this bridge

Nj 29 NB over Nj 29 Ramp Ci is a steel stringer/multi-beam or girder carrying Nj 29 NB over Nj 29 Ramp Ci in Mercer County, New Jersey. It was built in 1969, so it is 56 years old, younger 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 22,131 vehicles a day, roughly 5% of them trucks, projected to reach 26,557 by 2044. The structure is 92 ft (28 m) long and 57 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesNj 29 NB
CrossesNj 29 Ramp Ci
Location0.61 MI N of JCT Rt 1
RouteState Highway 29
CountyMercer County
StateNew Jersey
Coordinates40.21802, -74.77029
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53 US tons
Inventory rating32 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length92 ft (28 m)
Longest span85 ft (25.9 m)
Deck width57 ft (17.4 m)
Roadway width49 ft (14.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,131 (2024)
Projected traffic26,557 by 2044
Trucks5%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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$530,000 (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nj 29 NB over Nj 29 Ramp Ci built?

It was built in 1969, making it 56 years old in 2025.

What condition is Nj 29 NB over Nj 29 Ramp Ci 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 May 2024.

How much traffic does Nj 29 NB over Nj 29 Ramp Ci carry?

About 22,131 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Nj 29 NB over Nj 29 Ramp Ci?

The structure is 92 ft (28 m) long with a longest span of 85 ft (25.9 m) and a deck 57 ft wide.

Who owns Nj 29 NB over Nj 29 Ramp Ci?

It is owned by the State Highway Agency.