US Bridges

Elm ST (cr 667) over South Branch Raritan Riv

GoodPosted for load

Somerset County, New Jersey · 0.01 MI N of CR 567 · Structure no. 18C0601

Built
1896
129 years old, rebuilt 2007
Condition
Good
inspected August 2023
Type
Truss - Thru
Steel
Length
285 ft
2 main spans
Daily traffic
1,821
2023 count
Owner
County
County Highway Agency

About this bridge

Elm ST (cr 667) over South Branch Raritan Riv is a steel truss - thru carrying Elm ST (cr 667) over South Branch Raritan Riv in Somerset County, New Jersey. It was built in 1896 and reconstructed in 2007, so it is 129 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 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. Its operating status is: posted for load restriction.

It carries about 1,821 vehicles a day, roughly 1% of them trucks, projected to reach 2,185 by 2043. The structure is 285 ft (86.9 m) long and 18 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesElm ST (cr 667)
CrossesSouth Branch Raritan Riv
Location0.01 MI N of CR 567
RouteCounty Highway 667
CountySomerset County
StateNew Jersey
Coordinates40.50952, -74.72669
Functional classUrban Local

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 protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating29 US tons
Inventory rating17 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans2
Design loadH 15
Structure length285 ft (86.9 m)
Longest span141 ft (43 m)
Deck width18 ft (5.5 m)
Roadway width13 ft (4 m)
Vertical clearance over deck14 ft (4.3 m)

Traffic and service

Average daily traffic1,821 (2023)
Projected traffic2,185 by 2043
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 statusEligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$895,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Elm ST (cr 667) over South Branch Raritan Riv built?

It was built in 1896, making it 129 years old in 2025. It was reconstructed in 2007.

What condition is Elm ST (cr 667) over South Branch Raritan Riv 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 August 2023.

How much traffic does Elm ST (cr 667) over South Branch Raritan Riv carry?

About 1,821 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Elm ST (cr 667) over South Branch Raritan Riv?

The structure is 285 ft (86.9 m) long with a longest span of 141 ft (43 m) and a deck 18 ft wide.

Who owns Elm ST (cr 667) over South Branch Raritan Riv?

It is owned by the County Highway Agency.