US Bridges

Nj 27 over Rahway River

Fair

Union County, New Jersey · 2 MI North of 35 & 27 JCT · Structure no. 2006152

Built
1914
111 years old
Condition
Fair
inspected March 2024
Type
Arch - Deck
Concrete
Length
93 ft
2 main spans
Daily traffic
25,190
2024 count
Owner
State
State Highway Agency

About this bridge

Nj 27 over Rahway River is a concrete arch - deck carrying Nj 27 over Rahway River in Union County, New Jersey. It was built in 1914, so it is 111 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 25,190 vehicles a day, roughly 4% of them trucks, projected to reach 30,740 by 2044. The structure is 93 ft (28.3 m) long and 82 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesNj 27
CrossesRahway River
Location2 MI North of 35 & 27 JCT
RouteState Highway 27
Coordinates40.61894, -74.28245
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
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length93 ft (28.3 m)
Longest span43 ft (13.1 m)
Deck width82 ft (25 m)
Roadway width66 ft (20.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,190 (2024)
Projected traffic30,740 by 2044
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$651,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nj 27 over Rahway River built?

It was built in 1914, making it 111 years old in 2025.

What condition is Nj 27 over Rahway 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 Nj 27 over Rahway River carry?

About 25,190 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is Nj 27 over Rahway River?

The structure is 93 ft (28.3 m) long with a longest span of 43 ft (13.1 m) and a deck 82 ft wide.

Who owns Nj 27 over Rahway River?

It is owned by the State Highway Agency.