US Bridges

Pottersville Road over Peapack Brook

Poor

Somerset County, New Jersey · 0.58 MI East of US 206 · Structure no. 18D1302

Built
1927
98 years old, rebuilt 1977
Condition
Poor
inspected October 2023
Type
Slab
Prestressed Concrete
Length
84 ft
1 main span
Daily traffic
3,608
2023 count
Owner
County
County Highway Agency

About this bridge

Pottersville Road over Peapack Brook is a prestressed concrete slab carrying Pottersville Road over Peapack Brook in Somerset County, New Jersey. It was built in 1927 and reconstructed in 1977, so it is 98 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 3,608 vehicles a day, roughly 3% of them trucks, projected to reach 4,330 by 2043. The structure is 84 ft (25.6 m) long and 46 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesPottersville Road
CrossesPeapack Brook
Location0.58 MI East of US 206
RouteCounty Highway 512
Coordinates40.72113, -74.6683
Functional classUrban Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating50 US tons
Inventory rating30 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+1 approach)
Design loadH 20
Structure length84 ft (25.6 m)
Longest span42 ft (12.8 m)
Deck width46 ft (13.9 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,608 (2023)
Projected traffic4,330 by 2043
Trucks3%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$541,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Pottersville Road over Peapack Brook built?

It was built in 1927, making it 98 years old in 2025. It was reconstructed in 1977.

What condition is Pottersville Road over Peapack Brook in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2023.

How much traffic does Pottersville Road over Peapack Brook carry?

About 3,608 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Pottersville Road over Peapack Brook?

The structure is 84 ft (25.6 m) long with a longest span of 42 ft (12.8 m) and a deck 46 ft wide.

Who owns Pottersville Road over Peapack Brook?

It is owned by the County Highway Agency.