US Bridges

Grove ST over Peters Brook

Fair

Somerset County, New Jersey · 0.38 MI N of Nj 28 · Structure no. 18F0805

Built
1996
29 years old
Condition
Fair
inspected October 2023
Type
Arch - Deck
Concrete
Length
64 ft
1 main span
Daily traffic
11,141
2023 count
Owner
County
County Highway Agency

About this bridge

Grove ST over Peters Brook is a concrete arch - deck carrying Grove ST over Peters Brook in Somerset County, New Jersey. It was built in 1996, so it is 29 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 6 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 11,141 vehicles a day, roughly 4% of them trucks, projected to reach 13,369 by 2043. The structure is 64 ft (19.5 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesGrove ST
CrossesPeters Brook
Location0.38 MI N of Nj 28
RouteCity Street 0
CountySomerset County
StateNew Jersey
Coordinates40.57285, -74.60812
Functional classUrban Minor 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
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 25 or greater
Structure length64 ft (19.5 m)
Longest span60 ft (18.3 m)
Deck width50 ft (15.2 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,141 (2023)
Projected traffic13,369 by 2043
Trucks4%
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$129,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Grove ST over Peters Brook built?

It was built in 1996, making it 29 years old in 2025.

What condition is Grove ST over Peters 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 Grove ST over Peters Brook carry?

About 11,141 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Grove ST over Peters Brook?

The structure is 64 ft (19.5 m) long with a longest span of 60 ft (18.3 m) and a deck 50 ft wide.

Who owns Grove ST over Peters Brook?

It is owned by the County Highway Agency.