US Bridges

Ramp B over US 9 SB

Fair

Middlesex County, New Jersey · 5.3 MI N of Rt 79 JCT · Structure no. 1211150

Built
1960
65 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
155 ft
3 main spans
Daily traffic
13,840
2022 count
Owner
State
State Highway Agency

About this bridge

Ramp B over US 9 SB is a steel stringer/multi-beam or girder carrying Ramp B over US 9 SB in Middlesex County, New Jersey. It was built in 1960, so it is 65 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.

It carries about 13,840 vehicles a day, roughly 4% of them trucks, projected to reach 16,890 by 2042. The structure is 155 ft (47.2 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesRamp B
CrossesUS 9 SB
Location5.3 MI N of Rt 79 JCT
RouteU.S. Route 9
CountyMiddlesex County
StateNew Jersey
Coordinates40.37141, -74.30624
Functional classUrban Other Principal 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72 US tons
Inventory rating43 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length155 ft (47.2 m)
Longest span81 ft (24.7 m)
Deck width30 ft (9 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,840 (2022)
Projected traffic16,890 by 2042
Trucks4%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ramp B over US 9 SB built?

It was built in 1960, making it 65 years old in 2025.

What condition is Ramp B over US 9 SB 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 June 2024.

How much traffic does Ramp B over US 9 SB carry?

About 13,840 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is Ramp B over US 9 SB?

The structure is 155 ft (47.2 m) long with a longest span of 81 ft (24.7 m) and a deck 30 ft wide.

Who owns Ramp B over US 9 SB?

It is owned by the State Highway Agency.