US Bridges

N Willow+spring ST over D&r Feeder Canal

Fair

Mercer County, New Jersey · 0.27 MI S of Nj 31 JCT · Structure no. 3001153

Built
1917
108 years old
Condition
Fair
inspected September 2024
Type
Slab
Concrete Continuous
Length
40 ft
2 main spans
Daily traffic
6,004
2024 count
Owner
State
Other State Agency

About this bridge

N Willow+spring ST over D&r Feeder Canal is a concrete continuous slab carrying N Willow+spring ST over D&r Feeder Canal in Mercer County, New Jersey. It was built in 1917, so it is 108 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 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 6,004 vehicles a day, roughly 3% of them trucks, projected to reach 7,222 by 2044. The structure is 40 ft (12.2 m) long and 166 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesN Willow+spring ST
CrossesD&r Feeder Canal
Location0.27 MI S of Nj 31 JCT
RouteCity Street 0
CountyMercer County
StateNew Jersey
Coordinates40.22388, -74.76773
Functional classUrban Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38 US tons
Inventory rating23 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length40 ft (12.2 m)
Longest span12 ft (3.7 m)
Deck width166 ft (50.6 m)
Roadway width80 ft (24.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,004 (2024)
Projected traffic7,222 by 2044
Trucks3%
Lanes on structure4
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

OwnerOther State Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was N Willow+spring ST over D&r Feeder Canal built?

It was built in 1917, making it 108 years old in 2025.

What condition is N Willow+spring ST over D&r Feeder Canal 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 2024.

How much traffic does N Willow+spring ST over D&r Feeder Canal carry?

About 6,004 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is N Willow+spring ST over D&r Feeder Canal?

The structure is 40 ft (12.2 m) long with a longest span of 12 ft (3.7 m) and a deck 166 ft wide.

Who owns N Willow+spring ST over D&r Feeder Canal?

It is owned by the Other State Agency and maintained by the State Highway Agency.