US Bridges

Enterprise Avenue over Assunpink Creek

Fair

Mercer County, New Jersey · 0.6 MI NE of Mulberry ST · Structure no. 1165401

Built
1954
71 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
72 ft
1 main span
Daily traffic
630
2023 count
Owner
County
County Highway Agency

About this bridge

Enterprise Avenue over Assunpink Creek is a steel stringer/multi-beam or girder carrying Enterprise Avenue over Assunpink Creek in Mercer County, New Jersey. It was built in 1954, so it is 71 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 630 vehicles a day, roughly 1% of them trucks, projected to reach 753 by 2043. The structure is 72 ft (21.9 m) long and 48 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesEnterprise Avenue
CrossesAssunpink Creek
Location0.6 MI NE of Mulberry ST
RouteCity Street 0
CountyMercer County
StateNew Jersey
Coordinates40.24264, -74.732
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length72 ft (21.9 m)
Longest span68 ft (20.7 m)
Deck width48 ft (14.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic630 (2023)
Projected traffic753 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Enterprise Avenue over Assunpink Creek built?

It was built in 1954, making it 71 years old in 2025.

What condition is Enterprise Avenue over Assunpink Creek 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 February 2023.

How much traffic does Enterprise Avenue over Assunpink Creek carry?

About 630 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Enterprise Avenue over Assunpink Creek?

The structure is 72 ft (21.9 m) long with a longest span of 68 ft (20.7 m) and a deck 48 ft wide.

Who owns Enterprise Avenue over Assunpink Creek?

It is owned by the County Highway Agency.