US Bridges

Commonwealth Blvd over Union Branch

Good

Ocean County, New Jersey · 0.14 MI W of Rt 571 · Structure no. 1518001

Built
1986
39 years old, rebuilt 1998
Condition
Good
inspected April 2024
Type
Slab
Wood or Timber
Length
65 ft
4 main spans
Daily traffic
9,893
2024 count
Owner
County
County Highway Agency

About this bridge

Commonwealth Blvd over Union Branch is a wood or timber slab carrying Commonwealth Blvd over Union Branch in Ocean County, New Jersey. It was built in 1986 and reconstructed in 1998, so it is 39 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 9,893 vehicles a day, roughly 3% of them trucks, projected to reach 11,872 by 2044. The structure is 65 ft (19.8 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCommonwealth Blvd
CrossesUnion Branch
Location0.14 MI W of Rt 571
RouteCity Street 0
Coordinates40.00546, -74.24324
Functional classUrban Collector

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.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67 US tons
Inventory rating43 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans4
Design loadHS 25 or greater
Structure length65 ft (19.8 m)
Longest span15 ft (4.6 m)
Deck width35 ft (10.8 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,893 (2024)
Projected traffic11,872 by 2044
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$690,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Commonwealth Blvd over Union Branch built?

It was built in 1986, making it 39 years old in 2025. It was reconstructed in 1998.

What condition is Commonwealth Blvd over Union Branch 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 April 2024.

How much traffic does Commonwealth Blvd over Union Branch carry?

About 9,893 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is Commonwealth Blvd over Union Branch?

The structure is 65 ft (19.8 m) long with a longest span of 15 ft (4.6 m) and a deck 35 ft wide.

Who owns Commonwealth Blvd over Union Branch?

It is owned by the County Highway Agency.