US Bridges

Andria Avenue over Branch Royce Brook

Fair

Somerset County, New Jersey · 0.2 MI N. of US 206 · Structure no. 18E0606

Built
1974
51 years old
Condition
Fair
inspected October 2023
Type
Culvert
Steel
Length
28 ft
2 main spans
Daily traffic
1,688
2023 count
Owner
County
County Highway Agency

About this bridge

Andria Avenue over Branch Royce Brook is a steel culvert carrying Andria Avenue over Branch Royce Brook in Somerset 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 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 1,688 vehicles a day, roughly 1% of them trucks, projected to reach 2,025 by 2043. The structure is 28 ft (8.5 m) long and 60 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesAndria Avenue
CrossesBranch Royce Brook
Location0.2 MI N. of US 206
RouteCity Street 0
CountySomerset County
StateNew Jersey
Coordinates40.5114, -74.63698
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating56 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span12 ft (3.7 m)
Deck width60 ft (18.4 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,688 (2023)
Projected traffic2,025 by 2043
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Andria Avenue over Branch Royce Brook built?

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

What condition is Andria Avenue over Branch Royce Brook 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 October 2023.

How much traffic does Andria Avenue over Branch Royce Brook carry?

About 1,688 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Andria Avenue over Branch Royce Brook?

The structure is 28 ft (8.5 m) long with a longest span of 12 ft (3.7 m) and a deck 60 ft wide.

Who owns Andria Avenue over Branch Royce Brook?

It is owned by the County Highway Agency.