US Bridges

Ramp "b" over Hamilton Ave. (cr. 606)

Good

Mercer County, New Jersey · At I-295 Exit 63 · Structure no. 1137173

Built
1974
51 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
107 ft
1 main span
Daily traffic
14,160
2024 count
Owner
State
State Highway Agency

About this bridge

Ramp "b" over Hamilton Ave. (cr. 606) is a steel stringer/multi-beam or girder carrying Ramp "b" over Hamilton Ave. (cr. 606) in Mercer County, New Jersey. It was built in 1974, so it is 51 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 14,160 vehicles a day, roughly 9% of them trucks, projected to reach 17,278 by 2042. The structure is 107 ft (32.6 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesRamp "b"
CrossesHamilton Ave. (cr. 606)
LocationAt I-295 Exit 63
RouteInterstate 295
CountyMercer County
StateNew Jersey
Coordinates40.23236, -74.70069
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating75 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length107 ft (32.6 m)
Longest span102 ft (31.1 m)
Deck width30 ft (9.1 m)
Roadway width21 ft (6.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,160 (2024)
Projected traffic17,278 by 2042
Trucks9%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway and pedestrian
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ramp "b" over Hamilton Ave. (cr. 606) built?

It was built in 1974, making it 51 years old in 2025.

What condition is Ramp "b" over Hamilton Ave. (cr. 606) in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2024.

How much traffic does Ramp "b" over Hamilton Ave. (cr. 606) carry?

About 14,160 vehicles per day (2024 count), of which roughly 9% are trucks.

How long is Ramp "b" over Hamilton Ave. (cr. 606)?

The structure is 107 ft (32.6 m) long with a longest span of 102 ft (31.1 m) and a deck 30 ft wide.

Who owns Ramp "b" over Hamilton Ave. (cr. 606)?

It is owned by the State Highway Agency.