US Bridges

East Cliff Street over Peters Brook

Fair

Somerset County, New Jersey · 0.17 MI E. of Grove Str. · Structure no. 18F0804

Built
1915
110 years old, rebuilt 2006
Condition
Fair
inspected September 2023
Type
Arch - Deck
Concrete
Length
75 ft
1 main span
Daily traffic
3,356
2023 count
Owner
County
County Highway Agency

About this bridge

East Cliff Street over Peters Brook is a concrete arch - deck carrying East Cliff Street over Peters Brook in Somerset County, New Jersey. It was built in 1915 and reconstructed in 2006, so it is 110 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 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 3,356 vehicles a day, roughly 1% of them trucks, projected to reach 4,027 by 2043. The structure is 75 ft (22.9 m) long and 52 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesEast Cliff Street
CrossesPeters Brook
Location0.17 MI E. of Grove Str.
RouteCity Street 0
CountySomerset County
StateNew Jersey
Coordinates40.57024, -74.60594
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
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionSeptember 2023
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38 US tons
Inventory rating23 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 20
Structure length75 ft (22.9 m)
Longest span67 ft (20.4 m)
Deck width52 ft (15.8 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,356 (2023)
Projected traffic4,027 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$494,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was East Cliff Street over Peters Brook built?

It was built in 1915, making it 110 years old in 2025. It was reconstructed in 2006.

What condition is East Cliff Street 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 September 2023.

How much traffic does East Cliff Street over Peters Brook carry?

About 3,356 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is East Cliff Street over Peters Brook?

The structure is 75 ft (22.9 m) long with a longest span of 67 ft (20.4 m) and a deck 52 ft wide.

Who owns East Cliff Street over Peters Brook?

It is owned by the County Highway Agency.