US Bridges

Nj Route 27 over S Branch Rahway River

Fair

Middlesex County, New Jersey · 0.75 MI North of 604 Jct. · Structure no. 1218158

Built
1919
106 years old, rebuilt 1926
Condition
Fair
inspected May 2023
Type
Arch - Deck
Concrete
Length
21 ft
1 main span
Daily traffic
16,935
2023 count
Owner
State
State Highway Agency

About this bridge

Nj Route 27 over S Branch Rahway River is a concrete arch - deck carrying Nj Route 27 over S Branch Rahway River in Middlesex County, New Jersey. It was built in 1919 and reconstructed in 1926, so it is 106 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 16,935 vehicles a day, roughly 4% of them trucks, projected to reach 20,322 by 2043. The structure is 21 ft (6.4 m) long and 52 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesNj Route 27
CrossesS Branch Rahway River
Location0.75 MI North of 604 Jct.
RouteState Highway 27
Coordinates40.58042, -74.3104
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69 US tons
Inventory rating41 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span21 ft (6.4 m)
Deck width52 ft (15.8 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,935 (2023)
Projected traffic20,322 by 2043
Trucks4%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
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$250,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nj Route 27 over S Branch Rahway River built?

It was built in 1919, making it 106 years old in 2025. It was reconstructed in 1926.

What condition is Nj Route 27 over S Branch 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 May 2023.

How much traffic does Nj Route 27 over S Branch Rahway River carry?

About 16,935 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Nj Route 27 over S Branch Rahway River?

The structure is 21 ft (6.4 m) long with a longest span of 21 ft (6.4 m) and a deck 52 ft wide.

Who owns Nj Route 27 over S Branch Rahway River?

It is owned by the State Highway Agency.