US Bridges

Windsor Road over Assunpink Creek

Good

Mercer County, New Jersey · 0.1 MI North of Sharon RD · Structure no. 1109402

Built
2011
14 years old
Condition
Good
inspected February 2023
Type
Slab
Prestressed Concrete
Length
45 ft
1 main span
Daily traffic
3,869
2023 count
Owner
County
County Highway Agency

About this bridge

Windsor Road over Assunpink Creek is a prestressed concrete slab carrying Windsor Road over Assunpink Creek in Mercer County, New Jersey. It was built in 2011, so it is 14 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 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.

It carries about 3,869 vehicles a day, roughly 3% of them trucks, projected to reach 4,627 by 2043. The structure is 45 ft (13.7 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesWindsor Road
CrossesAssunpink Creek
Location0.1 MI North of Sharon RD
CountyMercer County
StateNew Jersey
Coordinates40.2183, -74.56024
Functional classRural 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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
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 rating110.1 US tons
Inventory rating69 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length45 ft (13.7 m)
Longest span40 ft (12.2 m)
Deck width36 ft (10.9 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,869 (2023)
Projected traffic4,627 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Windsor Road over Assunpink Creek built?

It was built in 2011, making it 14 years old in 2025.

What condition is Windsor Road over Assunpink Creek 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 February 2023.

How much traffic does Windsor Road over Assunpink Creek carry?

About 3,869 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Windsor Road over Assunpink Creek?

The structure is 45 ft (13.7 m) long with a longest span of 40 ft (12.2 m) and a deck 36 ft wide.

Who owns Windsor Road over Assunpink Creek?

It is owned by the County Highway Agency.